3,250 results match your criteria Vacuum Extraction


Association between levator ani muscle avulsions and technique of vacuum extraction - a prospective exploratory study.

Swiss Med Wkly 2020 Jun 2;150:w20280. Epub 2020 Jul 2.

Division of Obstetrics, University Hospital Zurich, Switzerland.

Aims Of The Study: Trauma of the levator ani muscle in the form of partial or complete avulsions is common after vaginal births, especially after vaginal-operative births. As there is little information available regarding associations between the technique of vaginal-operative births and levator ani muscle trauma, we aimed to evaluate the association between the process of vacuum extraction and the occurrence of levator ani muscle trauma.

Methods: As part of a prospective cohort study at the University Hospital of Zurich between March 2017 and April 2019, we sub-analysed vacuum extractions in nulliparous women with singletons in vertex presentation ≥36+0 gestational weeks. Read More

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http://dx.doi.org/10.4414/smw.2020.20280DOI Listing

Control and estimation of maximum gas pressure below landfill cover with horizontal gas wells: Analytical study.

Waste Manag 2020 Jul 7;114:33-42. Epub 2020 Jul 7.

Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China. Electronic address:

Horizontal spacing of horizontal extraction gas wells can be designed to achieve a 90% pumping rate of the total generated landfill gas (LFG) from given waste properties (viz: gas permeability, landfill gas generation and non-homogeneity with depth), cover characteristics and vacuum pressure. However, cover characteristics and vacuum pressure are also important design parameters and different combinations of them result in different distributions of gas pressure in the waste, some of which would induce problematic air intrusion while others might pose threat to cover stability. This paper uses the maximum gas pressure directly below cover to distinguish these combinations, and provides the first study of the effects of the above parameters on potential outcomes. Read More

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http://dx.doi.org/10.1016/j.wasman.2020.06.033DOI Listing

Association of traction force and adverse neonatal outcome in vacuum assisted vaginal delivery: a prospective cohort study.

Acta Obstet Gynecol Scand 2020 Jul 9. Epub 2020 Jul 9.

Children and Women´s Health, Karolinska University hospital, Stockholm, Sweden.

Introduction: Traction force is a possible risk factor for adverse neonatal outcome in vacuum extraction delivery, but the knowledge is scarce and further investigation is needed. Our hypothesis was that high level traction force increases the risk of admission to the neonatal intensive care unit.

Material And Methods: The study was a hospital based prospective cohort study on low and mid vacuum extractions at the labor and delivery ward, Karolinska University hospital, Huddinge, Sweden. Read More

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http://dx.doi.org/10.1111/aogs.13952DOI Listing

Vacuum extraction in twin deliveries-maternal and neonatal consequences: a retrospective cohort study.

Arch Gynecol Obstet 2020 Jul 8. Epub 2020 Jul 8.

Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Affiliated with the Hebrew University Medical School of Jerusalem, 12 Bayit, Jerusalem, Israel.

Purpose: To establish the frequency of vacuum extraction among parturients with twin pregnancies, identify the risk factors and perinatal outcomes.

Methods: A retrospective cohort database study was conducted between 2005-2018. Twin fetuses with vertex presentation >34 weeks gestation who achieved vaginal delivery were included. Read More

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http://dx.doi.org/10.1007/s00404-020-05668-2DOI Listing

Interface modification effect on the performance of CsFAPbIBr perovskite solar cells fabricated by evaporation/spray-coating method.

J Chem Phys 2020 Jul;153(1):014706

State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, People's Republic of China.

In this study, high quality CsFAPbIBr perovskite thin films were successfully fabricated by an evaporation/spray-coating hybrid deposition method. In this method, CsI and PbI were first deposited via thermal evaporation, and then FAI/FABr mixed solution was sprayed on the CsI/PbI substrate to form the CsFAPbIBr film. As confirmed by x-ray diffraction, scanning electron microscopy, and atomic force microscopy, a perovskite film with full surface coverage and small surface roughness was obtained. Read More

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http://dx.doi.org/10.1063/5.0012803DOI Listing
July 2020
2.952 Impact Factor

Management and outcomes of newborns at risk for inherited antithrombin deficiency.

J Thromb Haemost 2020 Jul 2. Epub 2020 Jul 2.

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

Background: As levels of antithrombin (AT) are low at birth, diagnosing inherited AT deficiency in newborns is challenging. In Stockholm, Sweden, pregnant women with known AT deficiency are referred to the Karolinska University Hospital, where local guidelines for management of newborns at risk of inherited AT-deficiency have been established. Data on pregnancies, obstetric and neonatal outcomes are recorded in a registry. Read More

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http://dx.doi.org/10.1111/jth.14982DOI Listing

Vacuum microwave dehydration decreases volatile concentration and soluble protein content of pea (Pisum sativum, L.) protein.

J Sci Food Agric 2020 Jul 1. Epub 2020 Jul 1.

Food, Nutrition and Health, Faculty of Land and Food Systems, the University of British Columbia 2205 East Mall, Vancouver, BC V6T-1Z4, Canada.

Background: Peas are an inexpensive, yet nutritious and sustainable source of protein. However, it is challenging to incorporate pea proteins into food formulations due to their beany or green off-flavours and their limited water solubility.

Results: Vacuum microwave dehydration (VMD) of pea protein with an initial moisture content of 425% (dry basis) at 2W/g specific microwave energy and 200 torrs vacuum level for 88 minutes led to an 83% reduction in total volatile compound concentration. Read More

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http://dx.doi.org/10.1002/jsfa.10627DOI Listing

A controllable and efficient method for the fabrication of a single HfC nanowire field-emission point electron source aided by low keV FIB milling.

Nanoscale 2020 Jul 1. Epub 2020 Jul 1.

Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255, USA.

A single hafnium carbide (HfC) nanowire field-induced electron emitter with a sharp tip apex is fabricated by Pt deposition and focused ion beam (FIB) milling. The structure of the electron emitter is characterized by scanning transmission electron microscopy (STEM) and atom probe tomography (APT). The HfC nanowire is single-crystalline with a thin oxide layer on its tip surface. Read More

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http://dx.doi.org/10.1039/d0nr03406aDOI Listing

Fetal molding examined with transperineal ultrasound and associations with position and delivery mode.

Am J Obstet Gynecol 2020 Jun 22. Epub 2020 Jun 22.

National Center for Fetal Medicine, Trondheim University Hospital (St. Olavs hospital), Trondheim, Norway; Institute of clinical and molecular medicine, Norwegian University of Science and Technology, Trondheim, Norway. Electronic address:

Background: To accommodate passage through the birth canal, the fetal skull is compressed and reshaped, a phenomenon known as molding. The fetal skull bones are separated by membranous sutures which facilitate compression and overlap, resulting in a reduced diameter. This increases the probability of a successful vaginal delivery. Read More

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http://dx.doi.org/10.1016/j.ajog.2020.06.042DOI Listing

Risk factors for uterine incision extension during cesarean delivery.

J Matern Fetal Neonatal Med 2020 Jun 24:1-6. Epub 2020 Jun 24.

Department of Obstetrics and Gynecology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.

Unintentional extension of uterine incision is a known complication during cesarean delivery estimated to occur in 4-8% of cesarean deliveries. The aim of this study was to examine risk factors associated with unintentional uterine incision extension and to assess which of them are independent risk factors for this condition. We conducted a retrospective cohort study at a large public university tertiary referral center between 2003 and 2017. Read More

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http://dx.doi.org/10.1080/14767058.2020.1783230DOI Listing

Vacuum-assisted extraction of ilio-caval and right heart masses: A 5-year single center experience.

J Card Surg 2020 Jun 19. Epub 2020 Jun 19.

Department of Cardiothoracic Surgery, Emory University, Atlanta, Georgia.

Purpose: Despite paucity of data, there exists growing popularity of catheter-based extraction methods for intravascular thrombi and vegetations. We describe a large single center experience with vacuum-assisted extraction techniques (VAET) for right-sided intravascular and cardiac masses.

Methods: We retrospectively reviewed the perioperative course of patients undergoing VAET between 2014 and 2019. Read More

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http://dx.doi.org/10.1111/jocs.14711DOI Listing

The importance of asynclitism in birth trauma and intrapartum sonography.

J Matern Fetal Neonatal Med 2020 Jun 14:1-7. Epub 2020 Jun 14.

Department of Obstetrics and Gynecology, Santa Maria Hospital, GVM Care and Research, Bari, Italy.

Asynclitism is malposition and malpresentation of the head in the pelvis. It is shown that asynclitism during the configuration (molding) of the head leads to an uneven distribution of the tension forces of the tentorium cerebelli (TC) and to its one-sided ruptures, mainly in the left half. It is indicated that with asynclitism larger more than 15 mm (moderate degree of asynclitism), the risk of birth trauma to the skull and brain increases. Read More

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http://dx.doi.org/10.1080/14767058.2020.1777270DOI Listing

Targeted mass spectrometry of ketamine and its metabolites cis-6-hydroxynorketamine and norketamine in human blood serum.

J Chromatogr B Analyt Technol Biomed Life Sci 2020 Jun 3;1152:122214. Epub 2020 Jun 3.

Food Chemistry Unit, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany. Electronic address:

Ketamine (KET) was originally developed as an anesthetic agent but has also attracted attention for further clinical applications such as medical treatment of depression or pain. The use of KET induces dissociation and emergence delirium. Due to these effects, KET has a high potential for abuse. Read More

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http://dx.doi.org/10.1016/j.jchromb.2020.122214DOI Listing

Histological properties of oscillating intracardiac masses associated with cardiac implantable electric devices.

J Arrhythm 2020 Jun 20;36(3):478-484. Epub 2020 Apr 20.

Department of Analytic Human Pathology Nippon Medical School Tokyo Japan.

Background: There have been a few cases of echogenic cardiac implantable electric device (CIED) lead-associated oscillating intracardiac masses (ICMs) in leads imaged by echocardiography. The histological properties of ICMs could help clarify the etiological diagnosis. Although there is extensive literature on mass size, the histological properties of such masses have not been characterized. Read More

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http://dx.doi.org/10.1002/joa3.12346DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7279976PMC

The effect of vacuum: an emerging experimental parameter to consider during headspace microextraction sampling.

Anal Bioanal Chem 2020 Jun 10. Epub 2020 Jun 10.

Laboratory of Aquatic Chemistry, School of Environmental Engineering, Technical University of Crete, Polytechneioupolis, 73100, Chania, Greece.

The effect of vacuum is an emerging experimental parameter to consider during optimization of a variety of headspace microextraction methodologies. The positive effect of vacuum was initially demonstrated for headspace solid-phase microextraction and was recently expanded to single-drop microextraction and higher capacity sorbents i.e. Read More

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http://dx.doi.org/10.1007/s00216-020-02738-xDOI Listing

[Technological innovation and patent transformation in rectal cancer surgery].

Zhonghua Wei Chang Wai Ke Za Zhi 2020 Jun;23(6):550-556

Department of Gastrointestinal Surgery, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, China.

Surgery for rectal cancer has obtained quick improvement in techniques and concepts in recent years but still has challenging areas. Colorectal surgeons always seek to make operations clearer and easier, so that surgery can be safer and less time-consuming while guaranteeing surgical goals. With this purpose, our team have explored to make innovations in operations for rectal cancer and translate relevant patents from 2009. Read More

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http://dx.doi.org/10.3760/cma.j.cn.441530-20200318-00151DOI Listing

Low use of vacuum extraction: Health care Professionals' Perspective in a University Hospital, Dar es Salaam.

Sex Reprod Healthc 2020 May 23;25:100533. Epub 2020 May 23.

International Maternal and Child Health (IMCH), Department of women's and Children's Health, Uppsala University, 75185 Uppsala, Sweden. Electronic address:

Background: Use of vacuum extraction (VE) has been declining in low and middle income countries. At the highest referral hospital Tanzania, 54% of deliveries are performed by caesarean section (CS) and only 0.8% by VE. Read More

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http://dx.doi.org/10.1016/j.srhc.2020.100533DOI Listing

Intrauterine versus external tocodynamometry in monitoring labour: A randomised controlled clinical trial.

BJOG 2020 Jun 3. Epub 2020 Jun 3.

Department of Obstetrics and Gynecology, Tampere University Hospital and Faculty of Medicine and Health Technology, Tampere University, PL, 2000, 33521, Tampere, Finland.

Objective: To investigate whether the use of intrauterine vs. external tocodynamometry (IT vs. ET) during labour reduces operative deliveries and improves newborn outcome. Read More

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http://dx.doi.org/10.1111/1471-0528.16343DOI Listing

Transcranial Doppler Emboli Monitoring for Infective Endocarditis.

J Neuroimaging 2020 Jul 2;30(4):486-492. Epub 2020 Jun 2.

Department of Neurology, Wake Forest Baptist Medical Center, Winston-Salem, NC.

Background And Purpose: Ischemic stroke can occur in 20-55% of patients with infective endocarditis (IE) with 75% occurring during the first 2 weeks of treatment. CT or MRI brain can diagnose the sequelae of stroke but transcranial Doppler (TCD) can document active embolization. We undertook a retrospective review of our patient cohort and a systematic review of literature to assess the role of TCD in early diagnosis and management of ischemic stroke in IE. Read More

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http://dx.doi.org/10.1111/jon.12721DOI Listing

Women's, partners' and healthcare providers' views and experiences of assisted vaginal birth: a systematic mixed methods review.

Reprod Health 2020 Jun 1;17(1):83. Epub 2020 Jun 1.

Research in Childbirth and Health Unit, University of Central Lancashire, Preston, PR1 2HE, UK.

Background: When certain complications arise during the second stage of labour, assisted vaginal delivery (AVD), a vaginal birth with forceps or vacuum extractor, can effectively improve outcomes by ending prolonged labour or by ensuring rapid birth in response to maternal or fetal compromise. In recent decades, the use of AVD has decreased in many settings in favour of caesarean section (CS). This review aimed to improve understanding of experiences, barriers and facilitators for AVD use. Read More

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http://dx.doi.org/10.1186/s12978-020-00915-wDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7268509PMC

Perinatal outcomes of babies delivered by second-stage Caesarean section versus vacuum extraction in a resource-poor setting, Nigeria - a retrospective analysis.

BMC Pregnancy Childbirth 2020 May 14;20(1):298. Epub 2020 May 14.

Department of Obstetrics & Gynecology, University of Nigeria Teaching Hospital, Enugu, Nigeria.

Background: To evaluate the perinatal status of neonates delivered by assisted vaginal delivery (AVD) versus second-stage caesarean birth (CS).

Methods: A 5-year retrospective study was conducted in a tertiary hospital. Data was analyzed with IBM SPSS® version 25. Read More

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http://dx.doi.org/10.1186/s12884-020-02995-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7227301PMC

Preliminary study: Measurement of ion beam energy spreads produced by a Penning ionization gauge-type ion source using electromagnets for a mega-electron volt compact ion microbeam system.

Rev Sci Instrum 2020 Apr;91(4):043304

Beam Seiko Instruments Inc., Izumi-Biru 1F 1-20-3, Kamata, Ohta-ku, Tokyo 144-0052, Japan.

The energy spreads of ion beams generated from a penning ionization gauge-type ion source with electromagnets were measured using a parallel electrostatic analyzer. The ion source was developed to be installed in a mega-electron volt (MeV) compact ion microbeam system. A gaseous ion beam of expectedly high brightness and narrow energy spread was generated from the ion source to form a microbeam. Read More

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http://dx.doi.org/10.1063/1.5132301DOI Listing

SMFM Special Statement: Operative vaginal delivery: checklists for performance and documentation.

Am J Obstet Gynecol 2020 05;222(5):B15-B21

Society for Maternal-Fetal Medicine, 409 12 St. SW, Washington, DC 20024, USA.

The frequency of operative vaginal delivery has been declining, even though it can be an attractive alternative to cesarean delivery in selected cases. Performance of operative vaginal delivery required consideration of many indications, contraindications, and prerequisites. Optimal documentation of operative vaginal delivery requires the recording of several specific elements that are unique to forceps or vacuum delivery. Read More

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http://dx.doi.org/10.1016/j.ajog.2020.02.011DOI Listing

Water Stable Isotopes in Ecohydrological Field Research: Comparison Between and Destructive Monitoring Methods to Determine Soil Water Isotopic Signatures.

Front Plant Sci 2020 14;11:387. Epub 2020 Apr 14.

Ecosystem Physiology, University of Freiburg, Freiburg, Germany.

Ecohydrological isotope based field research is often constrained by a lack of temporally explicit soil water data, usually related to the choice of destructive sampling in the field and subsequent analysis in the laboratory. New techniques based on gas permeable membranes allow to sample soil water vapor and infer soil liquid water isotopic signatures. Here, a membrane-based soil water vapor sampling method was tested at a grassland site in Freiburg, Germany. Read More

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http://dx.doi.org/10.3389/fpls.2020.00387DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7171290PMC

Severe obstetric lacerations associated with postpartum depression among women with low resilience - a Swedish birth cohort study.

BJOG 2020 Apr 27. Epub 2020 Apr 27.

Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.

Objective: Women's levels of resilience and attitudes towards perineal lacerations vary greatly. Some women see them as part of the birthing process, while others react with anger, depressed mood or even thoughts of self-harm. A previous study has reported increased risk of postpartum depressive (PPD) symptoms in women with severe perineal lacerations. Read More

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http://dx.doi.org/10.1111/1471-0528.16271DOI Listing

Change in prevalence of major levator ani muscle defects from 6 weeks to 1 year postpartum, and maternal and obstetric risk factors: A longitudinal ultrasound study.

Acta Obstet Gynecol Scand 2020 Apr 22. Epub 2020 Apr 22.

Division Akershus University Hospital, Faculty of Medicine, University of Oslo, Oslo, Norway.

Introduction: The present study aimed first to investigate the change in prevalence of major levator ani muscle (LAM) defects, also called avulsions, from 6 weeks to 1 year postpartum, and second to assess maternal and obstetric risk factors for having persistent major LAM defects/avulsions at 1 year postpartum.

Material And Methods: This is a secondary analysis of data from a prospective cohort study including 300 nulliparous women at 17-19 weeks of gestation. Major LAM defects were diagnosed at 6 weeks and 1 year postpartum using transperineal ultrasonography. Read More

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http://dx.doi.org/10.1111/aogs.13878DOI Listing

A Quality Improvement Project Utilizing a Clinical Practice Guideline in Women During Second-Stage Labor.

J Perinat Educ 2020 Apr;29(2):72-82

Second-stage labor is the most challenging stage of labor, as it requires increasing exertion of the birthing woman. Variances in nursing interventions in second-stage labor have an influence on outcomes. There is disparity in nursing care during second-stage labor. Read More

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http://dx.doi.org/10.1891/J-PE-D-19-00014DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7159796PMC

Vacuum-Controlled Growth of CsPbIBr for Highly Efficient and Stable All-Inorganic Perovskite Solar Cells.

ACS Appl Mater Interfaces 2020 May 30;12(19):21539-21547. Epub 2020 Apr 30.

Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China.

A high-temperature annealing process (>250 °C) is always needed to obtain high-quality α-CsPbIBr perovskite films, which makes it a challenge in the manufacture and application of flexible photovoltaic devices. In this work, a vacuum-controlled growth (VCG) method that can effectively control the crystallization of perovskite and provide high-quality films with larger grain size and low defect density at a lower temperature is demonstrated. Besides, a facile introduction of polyethyleneimine ethoxylated (PEIE) interlayer improves the charge extraction and suppresses the carrier recombination. Read More

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http://dx.doi.org/10.1021/acsami.0c01583DOI Listing

Safety Considerations for Thermoplastic-Type Appliances Used as Orthodontic Aligners or Retainers. A Systematic Review and Meta-Analysis of Clinical and In-Vitro Research.

Materials (Basel) 2020 Apr 14;13(8). Epub 2020 Apr 14.

Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, 8032 Zurich, Switzerland.

Use of thermoplastic material in orthodontics, either as aligner or as retainer appliances, is common practice and is likely to increase in the years to come. However, no systematic assessment on safety considerations of these adjuncts has been implemented up to date. The aim of this systematic review was to collectively appraise the existing evidence from both clinical and laboratory studies, on whether these appliances are associated with any estrogenic/cytotoxic effects or bisphenol-A (BPA) and monomer leaching. Read More

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http://dx.doi.org/10.3390/ma13081843DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7215465PMC

Risk factors for the recurrence of obstetrical anal sphincter injury and the role of a mediolateral episiotomy: an analysis of a national registry.

BJOG 2020 07 30;127(8):951-956. Epub 2020 Apr 30.

Department of Obstetrics and Gynaecology, Ikazia Hospital, Rotterdam, the Netherlands.

Objective: The assessment of risk factors, including mediolateral episiotomy (MLE), for the recurrence of obstetric anal sphincter injury (rOASI).

Design: Population-based cohort study.

Setting: Data from the nationwide database of the Dutch Perinatal Registry (Perined). Read More

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http://dx.doi.org/10.1111/1471-0528.16263DOI Listing

Synthesis of Environmentally Friendly Acrylonitrile Butadiene Styrene Resin with Low VOC.

Materials (Basel) 2020 Apr 3;13(7). Epub 2020 Apr 3.

Department of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China.

Most acrylonitrile butadiene styrene (ABS) resin is plagued by an unpleasant odor attributed to the high residual volatile organic compound (VOC) content. This paper primarily aimed to solve the odor issue of ABS resin by effectively reducing the VOC content. To that end, a synthesis of ABS resins was optimized through a supercritical extraction process while evaluating multiple novel chain transfer agents (linear dimer of α-methyl-styrene, methyl 3-mercaptopropionate, and dodecyl mercaptan). Read More

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http://dx.doi.org/10.3390/ma13071663DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7178361PMC
April 2020
2.651 Impact Factor

An intense source for cold cluster ions of a specific composition.

Rev Sci Instrum 2020 Mar;91(3):033315

Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria.

The demand for nanoscale materials of ultra-high purity and narrow size distribution is addressed. Clusters of Au, C, HO, and serine are produced inside helium nanodroplets using a combination of ionization, mass filtering, collisions with atomic or molecular vapor, and electrostatic extraction, in a specific and novel sequence. The helium droplets are produced in an expansion of cold helium gas through a nozzle into vacuum. Read More

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http://dx.doi.org/10.1063/1.5133112DOI Listing

A miniaturized ECR plasma flood gun for wafer charge neutralization.

Rev Sci Instrum 2020 Mar;91(3):033319

State Key Laboratory of Nuclear Physics and Technology and Institute of Heavy Ion Physics, Peking University, Beijing 100871, People's Republic of China.

In modern ion implanters, a plasma flood gun (PFG) is used to neutralize wafer charge during the doping process, preventing the breakdown of floating wafers caused by the space charge accumulation. Typically, there are two kinds of PFGs, namely, dc arc discharge with filament and RF discharge. As a PFG, the filament one has limited lifetime and cannot avoid metallic contamination because of the thermal emitting filament. Read More

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http://dx.doi.org/10.1063/1.5128522DOI Listing

Characterisation of aroma-active compounds in Guilin Huaqiao white sufu and their influence on umami aftertaste and palatability of umami solution.

Food Chem 2020 Aug 2;321:126739. Epub 2020 Apr 2.

Department of Food Science, Guangxi University, Nanning, Guangxi, 530004, China. Electronic address:

Sufu is a traditional fermented soybean curd, and Guilin Huaqiao white sufu is one of the most famous mould-fermented white sufu in China. The volatile compounds in sufu were extracted by vacuum simultaneous steam distillation and extraction (V-SDE) and analysed by gas chromatography-mass spectrometry-olfactometry (GC-MS-O). The aroma-active compounds were identified by aroma extract dilution analysis (AEDA) and odour activity values (OAVs), and their influence on umami aftertaste and palatability of umami solution was identified by sensory evaluation analysis in the follow-up research. Read More

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http://dx.doi.org/10.1016/j.foodchem.2020.126739DOI Listing

Pregnancy with Fontan circulation: A report of case series in Japan.

J Cardiol Cases 2020 Apr 30;21(4):161-163. Epub 2019 Dec 30.

Department of Obstetrics and Gynecology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.

Owing to new surgical procedures and medications, more women who have undergone the Fontan procedure reach childbearing ages. We report five cases of pregnancy with Fontan circulation. Case 1 had subchorionic hematoma (SCH), fetal growth restriction (FGR), and preterm labor (PTL). Read More

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http://dx.doi.org/10.1016/j.jccase.2019.12.005DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7125375PMC

Low volume forceps practice and anal sphincter injury rate.

Arch Gynecol Obstet 2020 05 6;301(5):1133-1138. Epub 2020 Apr 6.

The Department of Obstetrics and Gynecology, Hadassah-Hebrew University Medical Center, POB 12000, 91120, Jerusalem, Israel.

Purpose: While the increased rates of high degree perineal tears were previously associated with the use of forceps, in the current era of low volume of forceps practice, factors associated with the occurrence of this potential complication remain understudied. We aim to evaluate factors associated with obstetric anal sphincter injury (OASIS) in obstetric units with a low volume forceps practice.

Methods: A retrospective cohort study was conducted at two tertiary medical centers. Read More

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http://dx.doi.org/10.1007/s00404-020-05519-0DOI Listing

Comparison of Gaseous Ubiquitin Ion Structures obtained from a Solid and Solution Matrix Using Ion Mobility Spectrometry-Mass Spectrometry.

Rapid Commun Mass Spectrom 2020 Mar 27:e8793. Epub 2020 Mar 27.

MSTM, LLC, Newark, DE, USA.

Rationale: Examining surface protein conformations, and especially achieving this with spatial resolution, is an important goal. The recently discovered ionization processes offer spatial-resolution measurements similar to MALDI and produce charge states similar to ESI extending higher-mass protein applications directly from surfaces on high-performance mass spectrometers. Studying a well-interrogated protein by ion mobility spectrometry-mass spectrometry (IMS-MS) to access effects on structures using a solid vs solvent matrix may provide insights. Read More

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http://dx.doi.org/10.1002/rcm.8793DOI Listing

Protein Extraction, Enrichment and MALDI MS and MS/MS Analysis from Bitter Orange Leaves ().

Molecules 2020 Mar 25;25(7). Epub 2020 Mar 25.

Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Arcavacata di Rende Italy.

is a widespread tree in the Mediterranean area, and it is mainly used as rootstock for other citrus. In the present study, a vacuum infiltration centrifugation procedure, followed by solid phase extraction matrix-assisted laser desorption ionization tandem mass spectrometry (SPE MALDI MS/MS) analysis, was adopted to isolate proteins from leaves. The results of mass spectrometry (MS) profiling, combined with the top-down proteomics approach, allowed the identification of 78 proteins. Read More

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http://dx.doi.org/10.3390/molecules25071485DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7181213PMC

Antibiotic prophylaxis for operative vaginal delivery.

Cochrane Database Syst Rev 2020 03 26;3:CD004455. Epub 2020 Mar 26.

Liverpool School of Tropical Medicine, Liverpool, UK.

Background: Vacuum and forceps assisted vaginal deliveries are reported to increase the incidence of postpartum infections and maternal readmission to hospital compared to spontaneous vaginal delivery. Prophylactic antibiotics may be prescribed to prevent these infections. However, the benefit of antibiotic prophylaxis for operative vaginal deliveries is still unclear. Read More

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http://dx.doi.org/10.1002/14651858.CD004455.pub5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7096725PMC

Effectiveness of Acupuncture in Dental Surgery: A Randomized, Crossover, Controlled Trial.

J Acupunct Meridian Stud 2020 Jun 20;13(3):104-109. Epub 2020 Mar 20.

Department of Health Sciences and Children's Dentistry, Piracicaba School of Dentistry, State University of Campinas, São Paulo, Brazil. Electronic address:

Objectives: The objective of this crossover clinical study was to evaluate the effectiveness of Energy Regulation with Acupuncture in clinical occurrences in impacted lower third molar surgeries.

Methods: The sample consisted of 22 patients with two impacted third molars, in symmetrical position; divided into two groups: Test Group (TG) with Real Energy Regulation Group and Sham Group (SG) with Acupuncture without Energy Regulation function. The extraction was performed 30 days apart. Read More

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http://dx.doi.org/10.1016/j.jams.2020.03.063DOI Listing

Identification of large-for-gestational age fetuses using antenatal customized fetal growth charts: Can we improve the prediction of abnormal labor course?

Eur J Obstet Gynecol Reprod Biol 2020 May 10;248:81-88. Epub 2020 Mar 10.

Department of Medicine and Surgery, Obstetrics and Gynaecology Unit, University of Parma, Parma, Italy. Electronic address:

Introduction: Fetal overgrowth is an acknowledged risk factor for abnormal labor course and maternal and perinatal complications. The objective of this study was to evaluate whether the use of antenatal ultrasound-based customized fetal growth charts in fetuses at risk for large-for-gestational age (LGA) allows a better identification of cases undergoing caesarean section due to intrapartum dystocia.

Material And Methods: An observational study involving four Italian tertiary centers was carried out. Read More

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http://dx.doi.org/10.1016/j.ejogrb.2020.03.024DOI Listing
May 2020
1.627 Impact Factor

Bio-inspired Breastfeeding Simulator (BIBS): A Tool for Studying the Infant Feeding Mechanism.

IEEE Trans Biomed Eng 2020 Mar 13. Epub 2020 Mar 13.

Objective: This work introduces a bio-inspired breastfeeding simulator (BIBS), an experimental apparatus that mimics infant oral behavior and milk extraction, with the application of studying the breastfeeding mechanism in vitro.

Methods: The construction of the apparatus follows a clinical study by the authors that collects measurements of natural intra-oral vacuum pressure, the movements of the infant's jaw, tongue and upper palate, as well as nipple deformation and compression on the breast areola. The infant feeding mechanism simulator consists of a self-programmed vacuum pump assembly that replicates the infant's oral vacuum, two linear actuators and a motor-driven gear which represents oral compressive forces. Read More

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http://dx.doi.org/10.1109/TBME.2020.2980545DOI Listing

[Effect of decellularized adipose tissue combined with vacuum sealing drainage on wound inflammation in pigs].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2020 Mar;34(3):373-381

Department of Plastic and Reconstructive Surgery, the First Medical Central of Chinese PLA General Hospital, Beijing, 100853, P.R.China.

Objective: To preliminary explore the effect of decellularized adipose tissue (DAT) combined with vacuum sealing drainage (VSD) on wound inflammation in pigs.

Methods: The DAT was prepared through the process of freeze-thaw, enzymatic digestion, organic solvent extraction, and vacuum freeze-drying. The appearance of DAT was observed before and after freeze-drying. Read More

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http://dx.doi.org/10.7507/1002-1892.201904010DOI Listing

[A Case of Robot-Assisted Laparoscopic Lower Anterior Resection and Total Hysterectomy with Transvaginal NOSE].

Gan To Kagaku Ryoho 2019 Dec;46(13):2113-2115

Dept. of Gastrointestinal and Pediatric Surgery, Tokyo Medical University.

Natural orifice specimen extraction(NOSE)can be considered a minimally invasive treatment method. We performed robotassisted laparoscopic lower anterior resection and total hysterectomy with transvaginal NOSE. The patient was a 44-year-old woman. Read More

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December 2019

Determination of the Major Component of Water Fraction of Katuk ( (L.) Merr.) Leaves by Liquid Chromatography-Mass Spectrometry.

J Pharm Bioallied Sci 2019 Dec 30;11(Suppl 4):S611-S618. Epub 2019 Dec 30.

Department of Biology Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, West Java, Indonesia.

Background: The katuk leaf ( (L.) Merr.) is one of the plants that are used to overcome baldness by the people of Kampung Mak Kemas, Malaysia. Read More

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http://dx.doi.org/10.4103/jpbs.JPBS_205_19DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7020837PMC
December 2019

Precision cell-free DNA extraction for liquid biopsy by integrated microfluidics.

NPJ Precis Oncol 2020 24;4. Epub 2020 Feb 24.

1School of Mechanical Engineering, Korea University, Seoul, 02841 Republic of Korea.

Cell-free DNA (cfDNA) has been implicated as an important biomarker in cancer management. Thus, efficient techniques for cfDNA extraction are necessary for precision medicine. We developed a centrifugation-free cfDNA extraction microfluidic chip capable of extracting cfDNA from plasma samples through microfluidic circuits within 15 min under vacuum pressure using an immiscible solvent. Read More

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http://dx.doi.org/10.1038/s41698-019-0107-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7039987PMC
February 2020

Design and optimization of the VA-TV-SPME method for ultrasensitive determination of the PAHs in polluted water.

Talanta 2020 May 6;212:120809. Epub 2020 Feb 6.

Department of Chemistry, Lorestan University, Khorramabad, Iran; University of Tasmania, Hobart, Tasmania, 7001, Australia. Electronic address:

This paper describes how a novel and reliable alternative approach was developed for conventional solid-phase microextraction (SPME) sampling by total-vaporization of a sample under vacuum conditions. SPME sampling consists two stages of the equilibrium process, which take place between the sample/headspace and the headspace/fiber coating. In the total-vaporization SPME (TV-SPME) strategy, the first stage is omitted and analytes are directly partitioned between the headspace and fiber coating. Read More

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http://dx.doi.org/10.1016/j.talanta.2020.120809DOI Listing

Fluid-structure interaction modeling of lactating breast.

J Biomech 2020 Apr 21;103:109640. Epub 2020 Jan 21.

Department of Mechanical Engineering, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, TX 75080, USA. Electronic address:

There are two theories for the dynamics of milk expression by the infant. One hypothesis is that milk expression is due to the negative pressure applied by the infant sucking; the alternative hypothesis is that the tongue movement and squeezing of nipple/areola due to mouthing is responsible for the extraction of milk from the nipple. In this study, 3-D two-way Fluid-Structure Interaction (FSI) simulations are conducted to investigate the factors that play the primary role in expressing milk from the nipple. Read More

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http://dx.doi.org/10.1016/j.jbiomech.2020.109640DOI Listing

A numerical model to optimize LNAPL remediation by multi-phase extraction.

Sci Total Environ 2020 May 14;718:137309. Epub 2020 Feb 14.

School of Environment, Tsinghua University, Beijing 100084, China. Electronic address:

Light non-aqueous phase liquid (LNAPL) contaminated sites pose a risk to human health and the natural environment. Multi-phase extraction (MPE) is one of the most widely used technologies to remediate these sites. Thus, it is important to optimize MPE systems to improve their effectiveness and cost-efficiency. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2020.137309DOI Listing

A multifaceted investigation on the effect of vacuum on the headspace solid-phase microextraction of extra-virgin olive oil.

Anal Chim Acta 2020 Mar 20;1103:106-114. Epub 2019 Dec 20.

Gembloux Agro-Bio Tech, University of Liège, Gembloux, 5030, Belgium. Electronic address:

Headspace solid-phase microextraction (HS-SPME) is an easy, effective, and selective technique for the extraction of volatiles and semi-volatiles compounds. For the latter, longer equilibration times are needed, which are typically shortened by applying agitation or heating the sample. A less explored way to improve the extraction kinetics of analytes with a low-affinity for the headspace is to sample under vacuum conditions. Read More

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http://dx.doi.org/10.1016/j.aca.2019.12.053DOI Listing