3,058 results match your criteria Vacuum Extraction


Trends in obstetric policies in cases of failed vacuum extraction in Japan.

J Matern Fetal Neonatal Med 2019 Apr 24:1-11. Epub 2019 Apr 24.

a Department of Obstetrics and Gynecology , Japanese Red Cross Katsushika Maternity Hospital , Tokyo.

Objective: In April 2008, the guidelines for obstetric practice in Japan have made the following recommendations: (1) do not use vacuum extraction (VE) for more than 20 minutes, and consider forceps delivery (FD) or an emergency cesarean section (CS) if necessary (20-minute VE trial rule), and (2) do not try VE more than 5 times, even if VE has been used for less than 20 minutes (5-time VE trial rule). The aims of the present study were to compare the obstetric policies related to failed VE before and after 2008.

Methods: We reviewed the obstetric records of all cases of VE in cases of singleton pregnancy with a neonatal birth weight ≥ 2500 g beyond 37 weeks' gestation at our hospital from April 2002 to March 2014. Read More

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http://dx.doi.org/10.1080/14767058.2019.1611767DOI Listing

Fear of childbirth and associated factors among low-risk pregnant women.

J Obstet Gynaecol 2019 Apr 22:1-5. Epub 2019 Apr 22.

a Department of Obstetrics and Gynaecology, Faculty of Medicine Siriraj Hospital , Mahidol University , Bangkok , Thailand.

The aims of this study were to determine prevalence of childbirth fear among uncomplicated pregnant women in Siriraj Hospital and possible associated factors. A total of 305 uncomplicated, singleton pregnant women were enrolled during early third trimester. All participants were interviewed regarding baseline demographic, social, economic, family, and obstetric characteristics. Read More

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https://www.tandfonline.com/doi/full/10.1080/01443615.2019.1
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http://dx.doi.org/10.1080/01443615.2019.1584885DOI Listing
April 2019
1 Read

Impact of Episiotomy During Operative Vaginal Delivery on Obstetrical Anal Sphincter Injuries.

J Obstet Gynaecol Can 2019 Apr 16. Epub 2019 Apr 16.

Department of Obstetrics and Gynecology, University of Alberta, Lois Hole Hospital for Women, Edmonton, AB. Electronic address:

Objective: The purpose of this study was to describe associations between episiotomy at the time of forceps or vacuum-assisted delivery and obstetrical anal sphincter injuries (OASIS).

Methods: This population-based retrospective cohort study used delivery information from a provincial perinatal clinical database. Full-term, singleton, in-hospital, operative vaginal deliveries of vertex-presenting infants from April 1, 2006 to March 31, 2016 were identified. Read More

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http://dx.doi.org/10.1016/j.jogc.2019.02.016DOI Listing

Stent-retriever assisted vacuum-locked extraction (SAVE) versus a direct aspiration first pass technique (ADAPT) for acute stroke: data from the real-world.

BMC Neurol 2019 Apr 15;19(1):65. Epub 2019 Apr 15.

Department of Neuroradiology, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany.

Background: Embolectomy is the standard of care in acute ischemic stroke (AIS) caused by large vessel occlusion (LVO). Aim of this study was to compare two techniques: A Direct Aspiration First Pass Technique (ADAPT) and Stent-retriever Assisted Vacuum-locked Extraction (SAVE) stratified by the occluded vessel.

Methods: One hundred seventy-one patients (71 male) treated between January 2014 and September 2017 with AIS due to LVO of the anterior circulation (55 carotid T, 94 M1, 22 M2) were included. Read More

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https://bmcneurol.biomedcentral.com/articles/10.1186/s12883-
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http://dx.doi.org/10.1186/s12883-019-1291-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6466709PMC
April 2019
5 Reads

Imaging inelastic scattering of CO with argon: polarization dependent differential cross sections.

Phys Chem Chem Phys 2019 Apr 12. Epub 2019 Apr 12.

Department of Molecular and Laser Physics, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.

Rotationally inelastic scattering of carbon monoxide (CO) with Argon at a collision energy of 700 cm-1 has been investigated by measuring polarization dependent differential scattering cross sections (PDDCSs) for rotationally excited CO molecules using a crossed molecular beam apparatus coupled with velocity-map ion imaging. A simple and robust (1 + 1' + 1'') VUV (Vacuum Ultra-Violet) REMPI (Resonance Enhanced Multi Photon Ionization) scheme is used and images are obtained by setting the VUV light polarization direction parallel or perpendicular to the scattering plane. Clear differences between the images for the two polarizations are observed, indicating strong collision induced alignment of the rotational angular momentum of scattered CO. Read More

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http://dx.doi.org/10.1039/c9cp00876dDOI Listing
April 2019
1 Read

Carboxymethyl Cellulose Binder Greatly Stabilizes Porous Hollow Carbon Submicrospheres in Capacitive K-Ion Storage.

ACS Appl Mater Interfaces 2019 Apr 19. Epub 2019 Apr 19.

Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics , Jinan University , Guangzhou , 510632 People's Republic of China .

On account of the large radius of K-ions, the electrodes can suffer huge deformation during K-ion insertion and extraction processes. In our work, we unveil the impact of using carboxymethyl cellulose (CMC) instead of poly(vinylidene fluoride) (PVDF) as binders for K-ion storage. Our porous hollow carbon submicrosphere anodes using the CMC binder exhibit a reversible capacity of 208 mA h g after 50 cycles at 50 mA g, and even at a high current density of 1 A g, they achieve a reversible capacity of 111 mA h g over 3000 cycles with almost no decay, demonstrating remarkably improved reversibility and cycling stability than those using PVDF (18 mA h g after 3000 cycles at 1 A g). Read More

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http://dx.doi.org/10.1021/acsami.9b02060DOI Listing
April 2019
4 Reads

Room temperature and sensitive determination of haloanisoles in wine using vacuum-assisted headspace solid-phase microextraction.

J Chromatogr A 2019 Mar 23. Epub 2019 Mar 23.

Laboratory of Aquatic Chemistry, School of Environmental Engineering, Polytechnioupolis, Technical University of Crete, GR-73100, Chania, Crete, Greece. Electronic address:

Headspace solid-phase microextraction (HSSPME) is a widespread technique used to extract trace amounts of haloanisoles from wine samples. A major challenge to overcome is the high ethanol content in wines that affects the solubilities of haloanisoles and reduces their headspace abundance. To overcome this obstacle and meet sensitivity requirements, reported HSSPME procedures typically suggest heating the wine samples and/or sampling for extended times. Read More

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http://dx.doi.org/10.1016/j.chroma.2019.03.047DOI Listing
March 2019
1 Read

Extraction of antifreeze proteins from cold acclimated leaves of Drimys angustifolia and their application to star fruit (Averrhoa carambola) freezing.

Food Chem 2019 Aug 12;289:65-73. Epub 2019 Mar 12.

Department of Food Science and Technology, Federal University of Santa Catarina, Rodovia Admar Gonzaga 1.346, 88034-001 Florianopolis, SC, Brazil. Electronic address:

Antifreeze proteins (AFPs) have the ability to modify ice crystal growth and thus there is great interest in identifying new sources of these compounds. All extracts of cold acclimated leaves of Drimys angustifolia, obtained using different buffers, inhibited recrystallization and they presented similar SDS-PAGE profiles, with bands close to 20 and 37 kDa. The extract obtained using Tris-HCl/DDT buffer (pH 8) was used in the pre-treatment of frozen star fruit (Averrhoa carambola) by immersion or vacuum infiltration. Read More

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http://dx.doi.org/10.1016/j.foodchem.2019.03.055DOI Listing
August 2019
1 Read

Impact of epidural on labor duration and vacuum deliveries in twin gestations.

Midwifery 2019 Mar 30;74:134-139. Epub 2019 Mar 30.

Department of Obstetrics and Gynecology, Emek Medical Center, Afula, Israel; The Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel. Electronic address:

Introduction: Epidural analgesia may lead to a prolonged second stage, and increased instrumental vaginal deliveries rate in singleton gestations. We aimed to examine the association between epidural and vacuum deliveries rate and second stage duration among twin deliveries.

Methods: Retrospective study conducted at a single teaching hospital on data between January 1995 and December 2015. Read More

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http://dx.doi.org/10.1016/j.midw.2019.03.025DOI Listing
March 2019
1 Read

Factors associated with intrapartum cesarean section in women aged 40 years or older: a single-center experience in Japan.

J Matern Fetal Neonatal Med 2019 Apr 8:1-7. Epub 2019 Apr 8.

a Department of Obstetrics and Gynecology , Japanese Red Cross Nagoya Daiichi Hospital , Nagoya , Japan.

Objective: To elucidate the efficacy and safety of attempting a vaginal birth and to understand the factors that contribute to the increased risk of operative delivery in women aged 40 years or older.

Methods: A database of the Japanese Red Cross Nagoya Daiichi Hospital was reviewed to identify women aged 40 years or older with singleton, vertex, and vital pregnancies who attempted vaginal delivery at and after 37 + 0 gestational weeks between January 2011 and December 2016.

Results: A total of 415 women met the criteria for inclusion in this study, including 372 and 43 women who gave birth by vaginal delivery and by intrapartum cesarean section (CS), respectively. Read More

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http://dx.doi.org/10.1080/14767058.2019.1602601DOI Listing
April 2019
3 Reads

Influence of Anion and Cation Structure of Ionic Liquids on Carboxylic Acids Extraction.

Front Chem 2019 14;7:117. Epub 2019 Mar 14.

Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Bratislava, Slovakia.

A recently proposed new mechanism and a model of reactive extraction of carboxylic acids by hydrophobic ionic liquids (ILs) was tested on five systems from published as well as from new equilibrium data on liquid-liquid extraction of butyric and lactic acids (BA and LA) from aqueous solutions. Two phosphonium and one ammonium ILs were used. The model describes experimental data for all systems with a good fit. Read More

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http://dx.doi.org/10.3389/fchem.2019.00117DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6426792PMC
March 2019
1 Read

Effect of team training and monitoring on the rate of failed mid and low cavity vacuum extraction: a hospital based intervention study.

BMC Pregnancy Childbirth 2019 Mar 29;19(1):101. Epub 2019 Mar 29.

Department of Obstetrics and Gynecology, Karolinska University Hospital at Huddinge, K57, 141 86, Stockholm, Sweden.

Background: Clinical team training has been advocated as a means to improve delivery care, and failed extractions is a suggested variable for clinical audit in instrumental vaginal delivery. Other activities may also have intended or unintended effects on care processes or outcomes.

Methods: We retrospectively observed 1074 mid and low vacuum extraction deliveries during three time periods (prevalence periods): Baseline (period 0), implemented team training (period 1 and 2) and monitoring of traction force during vacuum extraction (period 2). Read More

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http://dx.doi.org/10.1186/s12884-019-2257-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6440163PMC
March 2019
1 Read

Lateral episiotomy versus no episiotomy to reduce obstetric anal sphincter injury in vacuum-assisted delivery in nulliparous women: study protocol on a randomised controlled trial.

BMJ Open 2019 Mar 13;9(3):e025050. Epub 2019 Mar 13.

Department of Clinical Sciences, Karolinska Institutet, Stockholm, Sweden.

Introduction: Obstetric anal sphincter injury (OASIS) occurs in 5%-7% of normal deliveries and increases with vacuum extraction (VE) to 12%-14% in nulliparous women in Sweden. Lateral/mediolateral episiotomy may reduce the prevalence of OASIS at VE in nulliparous women. The current use of episiotomy is restrictive. Read More

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http://dx.doi.org/10.1136/bmjopen-2018-025050DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6429882PMC
March 2019
1 Read

Comparative Assessment of Excretion of Milk from Two Breast Pumps with Different Vacuum Strength and Duration.

Breastfeed Med 2019 Apr 14;14(3):177-184. Epub 2019 Mar 14.

2 ZAO PK Medthechnika, Thula, Russian Federation.

Background: Breastfeeding is the best source of food for the newborn. In a situation wherein it is not possible to breastfeed a baby, it may be necessary to express milk from the mother's breast using a breast pump. To achieve lactation success before a baby's suckling can ensure the effective extraction of milk, breast pumps must meet specific biomechanical requirements. Read More

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http://dx.doi.org/10.1089/bfm.2018.0186DOI Listing
April 2019
4 Reads

Vacuum-assisted evaporative concentration combined with LC-HRMS/MS for ultra-trace-level screening of organic micropollutants in environmental water samples.

Anal Bioanal Chem 2019 May 11;411(12):2555-2567. Epub 2019 Mar 11.

Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600, Dübendorf, Switzerland.

Vacuum-assisted evaporative concentration (VEC) was successfully applied and validated for the enrichment of 590 organic substances from river water and wastewater. Different volumes of water samples (6 mL wastewater influent, 15 mL wastewater effluent, and 60 mL river water) were evaporated to 0.3 mL and finally adjusted to 0. Read More

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http://dx.doi.org/10.1007/s00216-019-01696-3DOI Listing
May 2019
7 Reads

Optimal continuous support accompanying labor - the midwives' and laboring women's point of view.

Isr J Health Policy Res 2019 Mar 6;8(1):27. Epub 2019 Mar 6.

Department of Obstetrics & Gynecology, Galilee Medical Center, Nahariya, Israel.

Background: Women who have continuous intrapartum support are more likely to have a shorter labor and spontaneous vaginal birth, and are less likely to need intrapartum analgesia than women who receive usual care without support. We aimed to determine what women in labor and midwives regard as the optimal number of labor supporters and whether they should be present during medical interventions.

Methods: A questionnaire was distributed to midwives participating in a national midwifery conference in June 2015. Read More

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http://dx.doi.org/10.1186/s13584-019-0299-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6402159PMC
March 2019
1 Read

A Simple Method for Measuring Apoplast Hydration and Collecting Apoplast Contents.

Plant Physiol 2019 04 1;179(4):1265-1272. Epub 2019 Mar 1.

Department of Horticulture and Crop Science, The Ohio State University, Columbus, Ohio 43210

The plant leaf apoplast is a dynamic environment subject to a variety of both internal and external stimuli. In addition to being a conduit for water vapor and gas exchange involved in transpiration and photosynthesis, the apoplast also accumulates many nutrients transported from the soil as well as those produced through photosynthesis. The internal leaf also provides a protective environment for endophytic and pathogenic microbes alike. Read More

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http://www.plantphysiol.org/lookup/doi/10.1104/pp.18.01076
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http://dx.doi.org/10.1104/pp.18.01076DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446764PMC
April 2019
18 Reads

SMILE intraoperative complications: incidence and management.

Int J Ophthalmol 2019 18;12(2):280-283. Epub 2019 Feb 18.

Menoufia University, Department of Ophthalmology, Shebein Elkom 32511, Egypt.

Aim: To report the intraoperative complications associated with small incision lenticule extraction (SMILE) and their management.

Methods: This was a retrospective consecutive interventional clinical study, carried out on patients with myopia and myopic astigmatism, who underwent SMILE procedure. Type of intraoperative complications and their management were recorded. Read More

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http://dx.doi.org/10.18240/ijo.2019.02.15DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6376233PMC
February 2019
1 Read

Women's recommendations: vacuum extraction or caesarean section for prolonged second stage of labour, a prospective cohort study in Uganda.

Trop Med Int Health 2019 Feb 25. Epub 2019 Feb 25.

Department of Obstetrics and Gynaecology, Mulago National Referral Hospital, Kampala, Uganda.

Objectives: To investigate what women who have experienced vacuum extraction or second stage caesarean section (CS) would recommend as mode of birth in case of prolonged second stage of labour.

Methods: A prospective cohort study was conducted in a tertiary referral hospital in Uganda. Between November 2014 and July 2015, women with a term singleton in vertex presentation who had undergone vacuum extraction or second stage CS were included. Read More

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http://dx.doi.org/10.1111/tmi.13222DOI Listing
February 2019
8 Reads

Intrapartum ultrasound monitoring of malposition and malrotation during labor neuraxial analgesia: maternal outcomes.

J Matern Fetal Neonatal Med 2019 Feb 19:1-7. Epub 2019 Feb 19.

e Anesthesiology and Obstetrics and Gynecology , Texas Tech University Health Sciences Center at El Paso , El Paso , TX , USA.

Objective: This study analyzes the important role of ultrasonography (IUS) related to the maternal outcomes in women with fetal persistent occiput posterior position (POPP) and asynclitism (A) in labor neuraxial analgesia (LNA).

Study Design: Prospective assessment of 148 primiparous women diagnosed with the prolonged second stage of labor. Transabdominal and transperineal IUS were used to detect fetal head position and to evaluate the angle of progression (AOP) and pubic arch angle (PAA). Read More

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http://dx.doi.org/10.1080/14767058.2019.1579193DOI Listing
February 2019
3 Reads

Vacuum Extraction in Preterm Deliveries and Long-Term Neurological Outcome of the Offspring.

Pediatr Neurol 2019 May 15;94:55-60. Epub 2019 Jan 15.

Department of Obstetrics and Gynecology, Soroka University Medical Center, Ben Gurion University of the Negev, Beer Sheva, Israel.

Background: Concern exists regarding a possible harmful impact of vacuum extraction on the preterm newborn. We aimed to evaluate the long-term pediatric neurodevelopmental outcomes of the preterm offspring after vacuum extraction.

Methods: A population-based cohort analysis was performed comparing the risk for long-term neurological morbidity (up to age 18 years) in preterm (less than 37 completed weeks of gestation) children born via following three delivery modes: vacuum extraction, spontaneous delivery, and Caesarean delivery performed during the second stage of labor. Read More

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http://dx.doi.org/10.1016/j.pediatrneurol.2018.12.010DOI Listing
May 2019
3 Reads
1.504 Impact Factor

A field-deployable surface-enhanced Raman scattering (SERS) method for sensitive analysis of silver nanoparticles in environmental waters.

Sci Total Environ 2019 Feb 2;653:1034-1041. Epub 2018 Nov 2.

Stockbridge School of Agriculture, University of Massachusetts Amherst, United States of America. Electronic address:

The proliferation of silver nanoparticles (AgNPs) in the environment and resultant transport into aquatic systems have raised concerns regarding their potential toxicity to various organisms. These environmental and ecological concerns demand reliable AgNP detection methods which can measure environmentally relevant quantities of AgNPs in real aquatic systems. This study developed a method that couples a rapid vacuum filtration technique with a portable Raman spectrometer to achieve on-site detection of ultra-low levels of AgNPs in typical and complex aquatic systems. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2018.10.435DOI Listing
February 2019
1 Read

[Pathophysiology, diagnosis and management of occiput posterior presentation during labor].

Gynecol Obstet Fertil Senol 2019 04 10;47(4):370-377. Epub 2019 Feb 10.

Service de gynécologie obstétrique, hôpital Nord, Gynépôle, Assistance publique des Hôpitaux de Marseille, Chemin des Bourelly, 13015 Marseille, France; EA 3279, Publichealth, chronic diseases and quality of life, Research Unit, Aix-Marseille University, 13284 Marseille, France.

Persistant occiput posterior (OP) positions are the commonest malpresentations of the fetal head during labor and their diagnosis remains challenging. They are associated to prolonged second stage of labor, prolonged expulsive efforts, labor augmentation, cesarean sections and instrumental deliveries. On the maternal side, severe perineal tears, post-partum hemorrhage or chorioamnionitis are more frequent. Read More

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http://dx.doi.org/10.1016/j.gofs.2019.02.002DOI Listing
April 2019
2 Reads

First-Principles Plasma Simulations of Black-Hole Jet Launching.

Phys Rev Lett 2019 Jan;122(3):035101

Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France.

Black holes drive powerful plasma jets to relativistic velocities. This plasma should be collisionless, and self-consistently supplied by pair creation near the horizon. We present general-relativistic collisionless plasma simulations of Kerr-black-hole magnetospheres which begin from vacuum, inject e^{±} pairs based on local unscreened electric fields, and reach steady states with electromagnetically powered Blandford-Znajek jets and persistent current sheets. Read More

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http://dx.doi.org/10.1103/PhysRevLett.122.035101DOI Listing
January 2019
1 Read

Evaluation of Volatile Metabolites Emitted In-Vivo from Cold-Hardy Grapes during Ripening Using SPME and GC-MS: A Proof-of-Concept.

Molecules 2019 Feb 1;24(3). Epub 2019 Feb 1.

Interdepartmental Toxicology Graduate Program, Iowa State University, Ames, IA 50011, USA.

In this research, we propose a novel concept for a non-destructive evaluation of volatiles emitted from ripening grapes using solid-phase microextraction (SPME). This concept is novel to both the traditional vinifera grapes and the cold-hardy cultivars. Our sample models are cold-hardy varieties in the upper Midwest for which many of the basic multiyear grape flavor and wine style data is needed. Read More

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http://dx.doi.org/10.3390/molecules24030536DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6384761PMC
February 2019
1 Read

Escherichia coli-infected cephalohematoma in an infant.

Dermatol Online J 2018 Nov 15;24(11). Epub 2018 Nov 15.

The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, New York.

We report a case of Escherichia coli infection of a cephalohematoma in an infant delivered by vacuum extraction. After excluding potential complications, the patient was treated with intravenous ceftriaxone while hospitalized followed by oral cephalexin after discharge. Infection is a rare but serious complication of cephalohematomas in the newborn period. Read More

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November 2018
9 Reads

[Preparation of samples for gas-chromatographic determination of fatty acids: direct transesterification of lipids of dry biological sample is preferred in comparison with the methods employing preliminary lipid extraction.]

Klin Lab Diagn 2018;63(3):141-147

National Medical Research Center of Cardiology, Moscow, Russian Federation, 121552.

Different methods of sample preparation and derivatization were compared from the point of view of product yield, speed and convenience of the technique used. Fatty acid determination in absolutely dry objects (biochemical preparations, food protein isolates, lyophilized microbial biomass) may be performed easily with the use of Folch method provided that 4-component system "chloroform/ methanol/water/acetic acid" was employed. Nevertheless, we ould not find any real advantages of classical Folch or Hara-Radin extraction method variants when compared to simple non-extraction technique (which consists in direct trans-esterification of dried biomaterial due to sequential sample treating with sodium methoxide and boron trifluoride methanolic solutions). Read More

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http://dx.doi.org/10.18821/0869-2084-2018-63-3-141-147DOI Listing
January 2018
12 Reads

High temperature treatment allows the detection of episesamin in paulownia wood extractives.

Nat Prod Res 2019 Jan 19:1-5. Epub 2019 Jan 19.

b School of Agricultural Forestry, Food, and Environmental Science , Università della Basilicata , Potenza , Italy.

The composition and the relative variation of secondary metabolites of Paulownia tomentosa S. wood under thermal effect is a little explored area. Wood material was previously thermo-treated at 210 °C for 3 hours using a press vacuum technology. Read More

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http://dx.doi.org/10.1080/14786419.2018.1560289DOI Listing
January 2019
13 Reads

Operator experience affects the risk of obstetric anal sphincter injury in vacuum extraction deliveries.

Acta Obstet Gynecol Scand 2019 Jan 19. Epub 2019 Jan 19.

Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden.

Introduction: Delivery by vacuum extraction is a major risk factor for obstetric anal sphincter injury. The aim of this study was to assess risk factors for obstetric anal sphincter injury in vacuum extraction in nulliparous women, specifically operator-related factors. A secondary aim was to assess other complications of vacuum extraction that are dependent on operator experience. Read More

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http://dx.doi.org/10.1111/aogs.13538DOI Listing
January 2019
3 Reads

Short-chain and medium-chain chlorinated paraffins in Canadian house dust and NIST SRM 2585.

Environ Sci Pollut Res Int 2019 Mar 17;26(8):7453-7462. Epub 2019 Jan 17.

Environmental and Radiation Health Sciences Directorate, Health Canada, 50 Colombine Driveway, PL 0800C, Ottawa, ON, K1A 0K9, Canada.

A method for the analysis of short-chain and medium-chain chlorinated paraffins (SCCPs and MCCPs) in house dust was developed. The method is based on sonication extraction, sample cleanup by solid phase extraction (SPE), and separation and detection by gas chromatography coupled with mass spectrometry (GC/MS) operated in electron capture negative ion (ECNI) chemical ionization mode. The method is sensitive, with method detection limits (MDLs) down to 0. Read More

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http://link.springer.com/10.1007/s11356-018-04073-2
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http://dx.doi.org/10.1007/s11356-018-04073-2DOI Listing
March 2019
14 Reads

A WSe vertical field emission transistor.

Nanoscale 2019 Jan;11(4):1538-1548

Physics Department "E. R. Caianiello", University of Salerno, via Giovanni Paolo II n. 132, Fisciano 84084, Italy.

We report the first observation of a gate-controlled field emission current from a tungsten diselenide (WSe2) monolayer, synthesized by chemical-vapour deposition on a SiO2/Si substrate. Ni contacted WSe2 monolayer back-gated transistors, under high vacuum, exhibit n-type conduction and drain-bias dependent transfer characteristics, which are attributed to oxygen/water desorption and drain induced Schottky barrier lowering, respectively. The gate-tuned n-type conduction enables field emission, i. Read More

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http://dx.doi.org/10.1039/c8nr09068hDOI Listing
January 2019
3 Reads

AgF desalination procedure for the routine determination of oxygen and hydrogen isotopic composition of saline waters and brines.

Authors:
Adam Porowski

Isotopes Environ Health Stud 2019 Mar 8;55(1):41-55. Epub 2019 Jan 8.

a Polish Academy of Sciences (INGPAN) , Institute of Geological Sciences , Warszawa , Poland.

The routine methods for stable oxygen and hydrogen isotope analysis of water involve water-CO gas equilibration and water reduction on hot metal (e.g. Zn, Cr, U) and subsequent mass spectrometric analysis of the evolved gases of CO and H for O/O and H/H ratios, respectively. Read More

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http://dx.doi.org/10.1080/10256016.2018.1561449DOI Listing
March 2019
2 Reads

A rare cause of scalp swelling in infancy: delayed subaponeurotic fluid collections in five cases.

Childs Nerv Syst 2019 May 7;35(5):875-878. Epub 2019 Jan 7.

Division of Pediatric Infectious Diseases, Department of Pediatrics, Ankara University School of Medicine, Cebeci Hospital, 06590, Ankara, Turkey.

Subaponeurotic (subgaleal) fluid collection (DSFC) is a rare clinical entity of unknown etiology. We aimed to present our series of infants who were diagnosed with DSCF at Ankara University Children's Hospital. We retrospectively reviewed clinical findings, imaging studies, laboratory tests, management, and clinical courses of infants diagnosed with DSCF between June 2014 and June 2018. Read More

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http://link.springer.com/10.1007/s00381-018-04040-9
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http://dx.doi.org/10.1007/s00381-018-04040-9DOI Listing
May 2019
24 Reads

Vacuum extraction for non-rotational and rotational assisted vaginal birth.

Best Pract Res Clin Obstet Gynaecol 2019 Apr 13;56:47-54. Epub 2018 Dec 13.

Department of obstetrics and gynaecology, Leiden University Medical Centre, Leiden, the Netherlands; National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom. Electronic address:

Vacuum-assisted birth is a safe mode of birth in the presence of a skilled provider. Vacuum extraction can avoid prolonged second stage of labour, birth asphyxia in the presence of foetal distress or maternal pushing where contraindicated. Vacuum-assisted births - particularly those in midpelvic rotational births - have been increasingly traded for caesarean births, although the latter are generally associated with potentially a greater risk to women and (future) children. Read More

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http://dx.doi.org/10.1016/j.bpobgyn.2018.12.002DOI Listing
April 2019
2 Reads

Green Extraction of Six Phenolic Compounds from Rattan () with Deep Eutectic Solvent by Homogenate-Assisted Vacuum-Cavitation Method.

Molecules 2018 Dec 29;24(1). Epub 2018 Dec 29.

Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China.

A homogenate-assisted vacuum-cavitation extraction (HVE) method with a "green" solvent (a deep eutectic solvent, DES) was developed to extract phenolic compounds from rattan (). In this study, the optimum molar ratio of choline chloride (ChCl) and ethylene glycol (EG) was 1:3, the optimum volume ratio of ChCl-EG:H₂O was 6:4, the solid-liquid ratio of HVE was 1:15, and the extraction time of homogenate and vacuum-cavitation were 2.0 min and 25 min, respectively. Read More

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http://dx.doi.org/10.3390/molecules24010113DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6337183PMC
December 2018
3 Reads
2.416 Impact Factor

Effects of maternal obesity on the success of assisted vaginal delivery in Chinese women.

BMC Pregnancy Childbirth 2018 Dec 27;18(1):509. Epub 2018 Dec 27.

Department of Gynaecology and Obstetrics, Liaocheng People's Hospital, Liaocheng, 252000, Shandong Province, People's Republic of China.

Background: We examined the influence of pre-pregnancy body weight on the rates of attempted and successfully assisted-vaginal delivery.

Methods: We used 2008-2016 inpatient records including 3408 women who had singleton gestations and needed operative delivery assistance to conduct a retrospective cohort study. Patients were categorized based on pre-pregnancy BMI (normal weight = 18. Read More

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http://dx.doi.org/10.1186/s12884-018-2151-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6307111PMC
December 2018
3 Reads

Protracted vacuum extraction and neonatal intracranial hemorrhage among infants born at term: a nationwide case-control study.

Acta Obstet Gynecol Scand 2019 Apr 23;98(4):523-532. Epub 2019 Jan 23.

Department of Women's and Children's Health, Division of Reproductive Health, Karolinska Institutet, Stockholm, Sweden.

Introduction: The association between vacuum extraction and intracranial hemorrhage has been debated. We sought to investigate the impact of protracted vacuum extraction on the risk for neonatal intracranial hemorrhage in term infants.

Material And Methods: This nationwide case-control study covered Swedish maternity wards from 1999 to 2013. Read More

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http://dx.doi.org/10.1111/aogs.13519DOI Listing
April 2019
2 Reads
1.985 Impact Factor

A new approach to recycle oxalic acid during lignocellulose pretreatment for xylose production.

Biotechnol Biofuels 2018 5;11:324. Epub 2018 Dec 5.

1State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640 China.

Background: Dilute oxalic acid pretreatment has drawn much attention because it could selectively hydrolyse the hemicellulose fraction during lignocellulose pretreatment. However, there are few studies focusing on the recovery of oxalic acid. Here, we reported a new approach to recycle oxalic acid used in pretreatment via ethanol extraction. Read More

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http://dx.doi.org/10.1186/s13068-018-1325-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6280388PMC
December 2018
13 Reads

Understanding beef flavour and overall liking traits using two different methods for determination of thiobarbituric acid reactive substance (TBARS).

Meat Sci 2019 Mar 23;149:114-119. Epub 2018 Nov 23.

Lab of Beef Processing and Quality Control, College of Food Science and Engineering, Shandong Agricultural University, Taian, Shandong 271018, PR China; Centre for Red Meat and Sheep Development, NSW Department of Primary Industries, Cowra, NSW 2794, Australia; Graham Centre for Agricultural Innovation, NSW Department of Primary Industries, Charles Sturt University, Wagga Wagga, NSW 2650, Australia.

Two extraction methods were applied to measure the thiobarbituric acid reactive substances (TBARS) values of vacuum packaged grass-fed beef steaks that were aged under four temperatures and five different time interval combinations to capture a range in lipid oxidation. The relationships between TBARS values and consumer assessment of flavour liking, flavour intensity and overall liking, were examined. M1 values had a normal distribution (0. Read More

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http://dx.doi.org/10.1016/j.meatsci.2018.11.018DOI Listing
March 2019
7 Reads
2.615 Impact Factor

Validation of a HRGC-ECNI/LRMS method to monitor short-chain chlorinated paraffins in human plasma.

J Environ Sci (China) 2019 Jan 16;75:289-295. Epub 2018 Apr 16.

CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. Electronic address:

Short-chain chlorinated paraffins (SCCPs) are produced in high volume and have the high potential to pose a threat to human health. However, little information is available for SCCP contamination in human blood/plasma/serum, mainly due to the difficulty of sample preparation and quantitative analysis. A method using high resolution gas chromatography coupled with electron capture negative ionization low resolution mass spectrometry (HRGC-ECNI/LRMS) was developed and validated to measure SCCPs in human plasma. Read More

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http://dx.doi.org/10.1016/j.jes.2018.04.004DOI Listing
January 2019
4 Reads

Outcomes After the Implementation of Practice Management Guidelines for the Treatment of Cardiovascular Implantable Device Pocket Infections.

J Surg Res 2018 12 17;232:643-646. Epub 2018 Aug 17.

Department of Surgery, Mayo Clinic, Rochester, Minnesota.

Background: Treatment of cardiovascular implantable device pocket infections (CIDPIs) requires a multimodal approach that includes antimicrobials, device explantation, and local wound care. Our institution implemented a practice management guideline (PMG) to standardize the care of CIDPIs and engage our acute care surgeons in 2013. Our PMG includes wound culture, complete capsulectomy, pulse lavage, and the placement of a negative pressure wound therapy appliance at the time of device extraction. Read More

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http://dx.doi.org/10.1016/j.jss.2018.07.065DOI Listing
December 2018
20 Reads

Chemical Recovery of γ-Valerolactone/Water Biorefinery.

Ind Eng Chem Res 2018 Nov 18;57(44):15147-15158. Epub 2018 Oct 18.

Department of Bioproducts and Biosystems, Aalto University, Espoo, Finland.

We introduce the optimization of the pulping conditions and propose different chemical recovery options for a proven biorefinery concept based on γ-valerolactone (GVL)/water fractionation. The pulping process has been optimized whereby the liquor-to-wood (L:W) ratio could be reduced to 3 L/kg without compromising the pulp properties as raw material for textile fibers production. The recovery of the pulping solvent was performed through combinations of lignin precipitation by water addition, distillation at reduced pressure, and liquid CO extraction. Read More

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http://pubs.acs.org/doi/10.1021/acs.iecr.8b03723
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http://dx.doi.org/10.1021/acs.iecr.8b03723DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6237546PMC
November 2018
13 Reads
2.587 Impact Factor

Analysis of bacteria stress responses to contaminants derived from shale energy extraction.

Environ Sci Process Impacts 2019 Feb;21(2):269-278

Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Pl.; Box 19065, Arlington, TX 76019-0065, USA.

In order to survive environmental changes, bacteria have stress responses, which protect them from adverse and variable conditions. Contamination can be a source of stress and bacterial responses can serve as an indicator of environmental abnormality. In this work, the biochemical effects of toxic compounds that stem from hydraulic fracturing were measured on the whole cell-derived fatty acid and protein compositions of Escherichia coli, Klebsiella oxytoca, Pseudomonas aeruginosa, Pseudomonas putida, Pseudomonas stutzeri, Aeromonas hydrophila, Bacillus cereus, and Bacillus subtilis. Read More

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http://xlink.rsc.org/?DOI=C8EM00338F
Publisher Site
http://dx.doi.org/10.1039/c8em00338fDOI Listing
February 2019
17 Reads

Measuring angle of progression by transperineal ultrasonography to predict successful instrumental and cesarean deliveries during prolonged second stage of labor.

Int J Gynaecol Obstet 2019 Feb 6;144(2):192-198. Epub 2018 Dec 6.

Department of Obstetrics and Gynecology, Kwong Wah Hospital, Hong Kong, China.

Objective: To compare the angle of progression (AoP) measured by transperineal ultrasonography before indicating an instrumental delivery or cesarean delivery.

Methods: A prospective observational study was conducted among women with singleton term pregnancies with prolonged second stage of labor at Kwong Wah Hospital, Hong Kong, China, between May 16, 2011, and May 25, 2016. Transabdominal and transperineal ultrasonography were performed to determine fetal head position and AoP, respectively, both at rest and during uterine contraction with pushing. Read More

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http://dx.doi.org/10.1002/ijgo.12712DOI Listing
February 2019
10 Reads

Optimization of essential oil extraction from orange peels using steam explosion.

Heliyon 2018 Nov 5;4(11):e00893. Epub 2018 Nov 5.

Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden.

In this work, a new extraction process using steam explosion at high temperature and pressure was developed, to drastically shorten the extraction time and improved extraction of the essential oil from citrus peels. In steam explosion process, the material is subjected to the high-pressure saturated steam following by substantially dropping the pressure through an angle valve to a vacuum tank. The optimum essential oil yield by the steam explosion was obtained at the 170 °C, 8 bar in 240 seconds duration time. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S24058440183309
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http://dx.doi.org/10.1016/j.heliyon.2018.e00893DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6222077PMC
November 2018
14 Reads

Rare case of a newborn baby with left-sided Erb's palsy and a contralateral/right-sided paralysis of the diaphragm.

BMJ Case Rep 2018 Nov 8;2018. Epub 2018 Nov 8.

Department of Pediatrics, Division of Neonatology, Regina General Hospital, Regina, Saskatchewan, Canada.

Brachial plexus birth injury (BPBI) and phrenic nerve injury can sometimes occur concurrently in neonates following difficult deliveries like breech presentation, shoulder dystocia, forceps or vacuum extraction. Phrenic nerve palsy should be suspected in a newborn with respiratory distress and an elevated hemidiaphragm on the imaging studies in presence of the associated risk factors. The right side is affected more often than the left side and most of it is associated with BPBI. Read More

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http://dx.doi.org/10.1136/bcr-2018-225373DOI Listing
November 2018
8 Reads

Global perspectives on operative vaginal deliveries.

Best Pract Res Clin Obstet Gynaecol 2019 Apr 3;56:107-113. Epub 2018 Oct 3.

South African Medical Research Council, Maternal and Infant Health Strategies Unit, Department of Obstetrics and Gynaecology, University of Pretoria, South Africa.

Operative vaginal delivery (OVD) refers to the use of an instrument (forceps or vacuum device) to assist with the delivery of the fetus from the vagina. This can help improve maternal and fetal outcomes and has to be weighed up against the risks and benefits of performing second-stage cesarean deliveries. OVD forms an integral part of basic emergency obstetric care and a skilled birth attendant's duties. Read More

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http://dx.doi.org/10.1016/j.bpobgyn.2018.09.004DOI Listing
April 2019
2 Reads

A simple model to predict the complicated operative vaginal deliveries using vacuum or forceps.

Am J Obstet Gynecol 2019 Feb 1;220(2):193.e1-193.e12. Epub 2018 Nov 1.

Department of Obstetrics and Gynecology and the Biostatistics Unit, Department of Preventive Medicine and Public Health, University of Seville, Seville, Spain.

Background: Complicated operative vaginal deliveries are associated with high neonatal morbidity and maternal trauma, especially if the procedure is unsuccessful and a cesarean delivery is needed. The decision to perform an operative vaginal delivery has traditionally been based on a subjective assessment by digital vaginal examination combined with the clinical expertise of the obstetrician. Currently there is no method for objectively quantifying the likelihood of successful delivery. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00029378183094
Publisher Site
http://dx.doi.org/10.1016/j.ajog.2018.10.035DOI Listing
February 2019
13 Reads
4.704 Impact Factor

Pain management and medical interventions during childbirth among perinatal distressed women and women dissatisfied in their partner relationship: A prospective cohort study.

Midwifery 2019 Feb 27;69:1-9. Epub 2018 Oct 27.

Department of Health and Caring Sciences, Linnaeus University, Stagneliusgatan 14b, 392 34 Kalmar, Sweden. Electronic address:

Objective: The purpose of this study was to investigate possible associations between distress in pregnant women and their use of pain management and medical interventions. Furthermore, we assessed the effects of reported dissatisfaction in relationship with their partner, or weak social support.

Design: This was a prospective cohort study. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S02666138183031
Publisher Site
http://dx.doi.org/10.1016/j.midw.2018.10.018DOI Listing
February 2019
14 Reads