6,281 results match your criteria conversion local


General Synthesis of Hierarchically Macro/Mesoporous Fe,Ni-Doped CoSe/N-Doped Carbon Nanoshells for Enhanced Electrocatalytic Oxygen Evolution.

Inorg Chem 2021 Apr 12. Epub 2021 Apr 12.

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China.

Constructing hierarchical porosity and designing rational hybrid composition are effective strategies for enhancing the electrocatalytic performance of hybrid catalysts for electrochemical energy conversion. Here, we develop a multistep "molecule/ion-exchange" strategy toward the synthesis of hierarchically macro/mesoporous Fe,Ni-doped CoSe/N-doped carbon nanoshells with tunable pore structures and compositions. Polystyrene (PS)@Co-based amorphous coordination polymer (Co-CP) core-shell particles with hierarchically macro/mesoporous nanoshells are first prepared by ligand-molecule-exchange etching of the outer layers in PS@Co-based metal-organic framework precursors. Read More

View Article and Full-Text PDF

The Use of Subgroup Disproportionality Analyses to Explore the Sensitivity of a Global Database of Individual Case Safety Reports to Known Pharmacogenomic Risk Variants Common in Japan.

Drug Saf 2021 Apr 10. Epub 2021 Apr 10.

Uppsala Monitoring Centre, Box 1051, 75140, Uppsala, Sweden.

Introduction: Genetic variations of enzymes that affect the pharmacokinetics and hence effects of medications differ between ethnicities, resulting in variation in the risk of adverse drug reactions (ADR) between different populations. Previous work has demonstrated that risk-group considerations can be incorporated into approaches of statistical signal detection. It is unknown whether databases of individual case safety reports (ICSRs) are sensitive to pharmacogenomic differences between populations. Read More

View Article and Full-Text PDF

LncRNA-FKBP1C regulates muscle fiber type switching by affecting the stability of MYH1B.

Cell Death Discov 2021 Apr 9;7(1):73. Epub 2021 Apr 9.

State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources & Lingnan Guangdong Laboratory of Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.

Long non-coding RNAs (lncRNAs) are well-known to participate in a variety of important regulatory processes in myogenesis. In our previous RNA-seq study (accession number GSE58755), we found that lncRNA-FKBP1C was differentially expressed between White Recessive Rock (WRR) and Xinghua (XH) chicken. Here, we have further demonstrated that lncRNA-FKBP1C interacted directly with MYH1B by biotinylated RNA pull-down assay and RNA immunoprecipitation (RIP). Read More

View Article and Full-Text PDF

Comparison of single-injection ultrasound-guided thoracic paravertebral block with transversus abdominis plane block in peritoneal dialysis catheter implantation: a randomized controlled trial.

Trials 2021 Apr 9;22(1):266. Epub 2021 Apr 9.

Department of Anesthesiology, West China Hospital, Sichuan University & The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, 610041, Sichuan, China.

Background: Previous study indicated that transversus abdominis plane (TAP) block could be the principal anesthetic technique for peritoneal dialysis catheter (PDC) implantations. However, a TAP block could not provide an optimal anesthetic effect on catheter exit site during PDC implantation. We hypothesized that single-injection ultrasound-guided thoracic paravertebral block (US-TPVB) could be the principal anesthetic technique with better pain relief at catheter exit site during PDC implantation, compared to a TAP block. Read More

View Article and Full-Text PDF

Water avoidance and modification of exit-site care with stoma bag results in reduced exit-site infection rate in peritoneal dialysis patients.

Clin Nephrol 2021 Apr 9. Epub 2021 Apr 9.

Aim: Infection is one of the drawbacks associated with peritoneal dialysis (PD) and is related to significant morbidity. After we experienced an increase in exit-site infection (ESI) rate, mostly derived from environmental and water-derived organisms, we hypothesized that preventing exit-site exposure to water and narrowing local antibiotics range will reduce colonization and subsequent infection.

Materials And Methods: In this study, we aimed to estimate PD-related infections after exit-site policy change in a prospective study cohort of 27 participants compared to a control group of 58 participants. Read More

View Article and Full-Text PDF

Optimizing CO Coverage on Rough Copper Electrodes: Effect of the Partial Pressure of CO and Electrolyte Anions (pH) on Selectivity toward Ethylene.

J Phys Chem C Nanomater Interfaces 2021 Apr 22;125(12):6546-6554. Epub 2021 Mar 22.

Photocatalytic Synthesis Group, Faculty of Science & Technology, University of Twente, P.O. Box 217, Enschede 7500AE, The Netherlands.

The conversion of the initial intermediate CO in the electrochemical reduction reaction of CO on the surface of oxide-derived Cu electrodes has been investigated as a function of partial pressure and pH, manipulated by the composition of the electrolyte. We show that in inert gas, an increase in partial pressure of CO results in a continuous increase in Faradaic efficiency (FE) for ethylene, at various potentials ranging from -0.7 to -1. Read More

View Article and Full-Text PDF

Suppressing the Voltage Decay Based on a Distinct Stacking Sequence of Oxygen Atoms for Li-Rich Cathode Materials.

ACS Appl Mater Interfaces 2021 Apr 7. Epub 2021 Apr 7.

National Base for International Science & Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage & Conversion, School of Chemistry, Xiangtan University, Xiangtan 411105, China.

Li-rich cathode materials possess a much higher theoretical energy density than all intercalated cathode materials currently reported and thus are considered as the most promising candidate for next-generation high-energy density Li-ion batteries. However, the rapid voltage decay and the irreversible phase transition of O3-type Li-rich cathode materials often lessen their actual energy density and limit their practical applications, and thus, effectively suppressing the voltage decay of Li-rich cathodes becomes the hotspot of the current research. Herein, the F-doped O2-type Li-rich cathode materials LiMnNiCoOF (F-O2-LRO) are designed and prepared based on the P2-type sodium-ion cathode materials NaLi(MnNiCo)O (Na-LRO) by ion exchange. Read More

View Article and Full-Text PDF

Towards an ideotype for food-fuel dual-purpose wheat in Argentina with focus on biogas production.

Biotechnol Biofuels 2021 Apr 5;14(1):85. Epub 2021 Apr 5.

Unidad Integrada Balcarce (Estación Experimental Agropecuaria Balcarce, Instituto Nacional de Tecnología Agropecuaria - Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata), CC 276, 7620, Balcarce, Argentina.

Background: Wheat straw, one of the most abundant agricultural residues worldwide, can be used to produce biogas, which is considered one of the most efficiently produced renewable energies. Wheat grown with the dual-purpose of producing food and biogas should display simultaneously high grain and straw yields, low lodging susceptibility and high conversion efficiency of straw into biogas. The aims of this study were to determine the best food-fuel dual-purpose wheat candidates among 36 wheat genotypes-including French, CIMMYT and local (Criollo) germplasm-used in breeding programs in Argentina and to gain some insights into the relationships between key traits relevant for dual-purpose wheat genotypes. Read More

View Article and Full-Text PDF

Feasible measurement-based entanglement purification in linear optics.

Opt Express 2021 Mar;29(6):9363-9384

Entanglement purification is used to distill high quality entangled states from several noisy low quality entangled states, and it plays a key role in quantum repeater. The measurement-based entanglement purification protocol (MB-EPP) does not require local two-qubit gates or single-particle measurements on the noisy pairs and may offer significant advantages compared with the gate-based EPPs. We present an alternative MB-EPP in linear optics. Read More

View Article and Full-Text PDF

Dopant-Free π-Conjugated Hole Transport Materials for Highly Stable and Efficient Perovskite Solar Cells.

Front Chem 2021 18;9:664504. Epub 2021 Mar 18.

Key Laboratory of Rubber-Plastic of Ministry of Education (QUST), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, China.

Current high-efficiency hybrid perovskite solar cells (PSCs) have been fabricated with doped hole transfer material (HTM), which has shown short-term stability. Doping applied in HTMs for PSCs can enhance the hole mobility and PSCs' power conversion efficiency, while the stability of PSCs will be significantly decreased due to inherent hygroscopic properties and chemical incompatibility. Development of dopant-free HTM with high hole mobility is a challenge and of utmost importance. Read More

View Article and Full-Text PDF

Comparison of Survival between Single-Access and Conventional Laparoscopic Surgery in Rectal Cancer.

Minim Invasive Surg 2021 17;2021:6684527. Epub 2021 Mar 17.

Division of Colorectal Surgery, Department of Surgery, Rajavithi Hospital, Bangkok, Thailand.

Introduction: Innovative laparoscopic surgery for rectal cancer can be classified into 2 types: firstly, new instruments such as robotic surgery and secondly, new technique such as single-access laparoscopic surgery (SALS) and transanal total mesorectal excision (TaTME). Most reports of SALS for rectal cancer have shown pathologic outcomes comparable to those of conventional laparoscopic surgery (CLS); however, SALS is considered to be superior to CLS in terms of lower levels of discomfort and faster recovery rates. This study aimed to compare the survival outcomes of the two approaches. Read More

View Article and Full-Text PDF

A novel microwave stimulus remote-controlled anticancer drug release system based on Janus TiO&mSiO nanocarriers.

Mater Sci Eng C Mater Biol Appl 2021 Apr 16;123:111968. Epub 2021 Feb 16.

Key Laboratory of Synthetic and Natural Functional Molecule (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Chang'an District, Xi'an, Shaanxi 710127, China. Electronic address:

In this work, we used a simple method to construct Janus-shaped TiO&mSiO nanoparticles composed of gray-black titanium dioxide (TiO) and mesoporous silica (mSiO) serving as carriers to improve the microwave-controlled release performance. In the composite materials, on one hand, the rod-shaped mSiO could realize high-efficiency drug loading, on the other hand, spherical TiO featuring oxygen vacancy acted as the main microwave absorber. The overall spatial separation between titanium dioxide and silicon dioxide was crucial to enhance microwave conversion efficiency. Read More

View Article and Full-Text PDF

The large footprint of small-scale artisanal gold mining in Ghana.

Sci Total Environ 2021 Mar 22;781:146644. Epub 2021 Mar 22.

Space Enabled Research Group, Massachusetts Institute of Technology, Cambridge, MA, United States.

Gold mining has played a significant role in Ghana's economy for centuries. Regulation of this industry has varied over time and while industrial mining is prevalent in the country, the expansion of artisanal mining, or Galamsey has escalated in recent years. Many of these artisanal mines are not only harmful to human health due to the use of Mercury (Hg) in the amalgamation process, but also leave a significant footprint on terrestrial ecosystems, degrading and destroying forested ecosystems in the region. Read More

View Article and Full-Text PDF

Route-Planning Method for Plant Protection Rotor Drones in Convex Polygon Regions.

Sensors (Basel) 2021 Mar 22;21(6). Epub 2021 Mar 22.

School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China.

Aiming at the problem of low operating efficiency due to the poor endurance of plant protection rotor drones and the small volume of pesticide carried, this paper proposes a route-planning algorithm for convex polygon regions based on the initial heading angle. First, a series of coordinate conversion methods ranging from the Earth coordinate system to the local plane coordinate system are studied. Second, in the local plane coordinate system, a route generation method based on subregion is proposed; therefore, multiple routes can be generated with different initial heading angles. Read More

View Article and Full-Text PDF

FeO-Au Core-Shell Nanoparticles as a Multimodal Platform for In Vivo Imaging and Focused Photothermal Therapy.

Pharmaceutics 2021 Mar 20;13(3). Epub 2021 Mar 20.

BIONAND-Centro Andaluz de Nanomedicina y Biotecnología (Junta de Andalucía-Universidad de Málaga), C/Severo Ochoa, 35, 29590 Málaga, Spain.

In this study, we report the synthesis of gold-coated iron oxide nanoparticles capped with polyvinylpyrrolidone (Fe@Au NPs). The as-synthesized nanoparticles (NPs) exhibited good stability in aqueous media and excellent features as contrast agents (CA) for both magnetic resonance imaging (MRI) and X-ray computed tomography (CT). Additionally, due to the presence of the local surface plasmon resonances of gold, the NPs showed exploitable "light-to-heat" conversion ability in the near-infrared (NIR) region, a key attribute for effective photothermal therapies (PTT). Read More

View Article and Full-Text PDF

Lab-Scale Study of Temperature and Duration Effects on Carbonized Solid Fuels Properties Produced from Municipal Solid Waste Components.

Materials (Basel) 2021 Mar 3;14(5). Epub 2021 Mar 3.

Department of Applied Bioeconomy, Wrocław University of Environmental and Life Sciences, 37/41 Chełmońskiego Str., 51-630 Wrocław, Poland.

In work, data from carbonization of the eight main municipal solid waste components (carton, fabric, kitchen waste, paper, plastic, rubber, paper/aluminum/polyethylene (PAP/AL/PE) composite packaging pack, wood) carbonized at 300-500 °C for 20-60 min were used to build regression models to predict the biochar properties (proximate and ultimate analysis) for particular components. These models were then combined in general models that predict the properties of char made from mixed waste components depending on pyrolysis temperature, residence time, and share of municipal solid waste components. Next, the general models were compared with experimental data (two mixtures made from the above-mentioned components carbonized at the same conditions). Read More

View Article and Full-Text PDF

YAP and TAZ Mediators at the Crossroad between Metabolic and Cellular Reprogramming.

Metabolites 2021 Mar 8;11(3). Epub 2021 Mar 8.

Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 40, 80138 Napoli, Italy.

Cell reprogramming can either refer to a direct conversion of a specialized cell into another or to a reversal of a somatic cell into an induced pluripotent stem cell (iPSC). It implies a peculiar modification of the epigenetic asset and gene regulatory networks needed for a new cell, to better fit the new phenotype of the incoming cell type. Cellular reprogramming also implies a metabolic rearrangement, similar to that observed upon tumorigenesis, with a transition from oxidative phosphorylation to aerobic glycolysis. Read More

View Article and Full-Text PDF

Transcriptome Signatures in WCS417 Shed Light on Role of Root-Secreted Coumarins in -Mutualist Communication.

Microorganisms 2021 Mar 11;9(3). Epub 2021 Mar 11.

Plant-Microbe Interactions, Department of Biology, Science4Life, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands.

WCS417 is a root-colonizing bacterium with well-established plant-beneficial effects. Upon colonization of roots, WCS417 evades local root immune responses while triggering an induced systemic resistance (ISR) in the leaves. The early onset of ISR in roots shows similarities with the iron deficiency response, as both responses are associated with the production and secretion of coumarins. Read More

View Article and Full-Text PDF

Field evaluation of feeding spray-dried plasma in the starter period on final performance and overall health of broilers.

Poult Sci 2021 Mar 3;100(5):101080. Epub 2021 Mar 3.

ISI institute, Curitiba, Parana, Brazil.

The effect of feeding spray-dried plasma (SDP) during the starter period was evaluated with a commercial broiler integrator on performance and overall health of broilers. The I See Inside (ISI) methodology assessing gut health in broilers was used as a tool to evaluate the impact of dietary interventions under commercial conditions. One hundred farms with approximately 1. Read More

View Article and Full-Text PDF

Gasification biochar from horticultural waste: An exemplar of the circular economy in Singapore.

Sci Total Environ 2021 Mar 19;781:146573. Epub 2021 Mar 19.

Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore. Electronic address:

Organic waste, the predominant component of global solid waste, has never been higher, resulting in increased landfilling, incineration, and open dumping that releases greenhouse gases and toxins that contribute to global warming and environmental pollution. The need to create and adopt sustainable closed-loop systems for waste reduction and valorization is critical. Using organic waste as a feedstock, gasification and pyrolysis systems can produce biooil, syngas, and thermal energy, while reducing waste mass by as much as 85-95% through conversion into biochar, a valuable byproduct with myriad uses from soil conditioning to bioremediation and carbon sequestration. Read More

View Article and Full-Text PDF

Transcriptome and lipidome profile of human mesenchymal stem cells with reduced senescence and increased trilineage differentiation ability upon drug treatment.

Aging (Albany NY) 2021 Mar 26;13. Epub 2021 Mar 26.

School of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China.

Human Mesenchymal stem cells (hMSCs) are multi-potential cells which are widely used in cell therapy. However, the frequently emerged senescence and decrease of differentiation capabilities limited the broad applications of MSC. Several strategies such as small molecules treatment have been widely studied and used to improve the stem characteristics bypassing the senescence but the exact mechanisms for them to reduce senescence have not been fully studied. Read More

View Article and Full-Text PDF

Coordinated cytokinin signaling and auxin biosynthesis mediates arsenate-induced root growth inhibition.

Plant Physiol 2021 Jan 13. Epub 2021 Jan 13.

State Key Laboratory of Plant Genomics, National Centre for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.

Interactions between plant hormones and environmental signals are important for the maintenance of root growth plasticity under ever-changing environmental conditions. Here, we demonstrate that arsenate (AsV), the most prevalent form of arsenic (As) in nature, restrains elongation of the primary root through transcriptional regulation of local auxin biosynthesis genes in the root tips of Arabidopsis (Arabidopsis thaliana) plants. The ANTHRANILATE SYNTHASE ALPHA SUBUNIT 1 (ASA1) and BETA SUBUNIT 1 (ASB1) genes encode enzymes that catalyze the conversion of chorismate to anthranilate (ANT) via the tryptophan-dependent auxin biosynthesis pathway. Read More

View Article and Full-Text PDF
January 2021

Photonic approach to flexible multi-band linearly frequency modulated microwave signals generation.

Opt Lett 2021 Apr;46(7):1696-1699

In this paper, a flexible multi-band linearly frequency modulated (LFM) signal generator based on a dual-polarization binary phase-shift keying (DP-BPSK) modulator is proposed and demonstrated by experiment. Two dual-drive Mach-Zehnder modulators of the DP-BPSK modulator are driven by a local oscillator (LO) signal and an LFM signal, respectively. By appropriately changing the phase difference introduced by a polarization controller, flexible multi-band LFM signals can be obtained after photoelectric conversion. Read More

View Article and Full-Text PDF

vNOTES for adnexal procedures.

J Obstet Gynaecol 2021 Apr 1:1-5. Epub 2021 Apr 1.

Department of Gynaecologic Endoscopy, Hospital Lusíadas Porto Av. da Boavista 171, Porto, Portugal.

This work aims to describe the technique and review all transvaginal natural orifice transluminal endoscopic surgery (vNOTES) for adnexal procedures performed and to acknowledge vNOTES as an alternative to conventional laparoscopy. The procedure consisted of an incision in the Pouch of Douglas, insertion of a single port device, laparoscopic surgery through the device, extraction of specimens through the vagina and closure of the vaginal apex with a direct suture. Eighteen procedures have been successfully completed, 1 patient required conversion to conventional abdominal surgery due to intolerance to pneumoperitoneum. Read More

View Article and Full-Text PDF

Complement C3a and C5a receptor blockade modulates regulatory T cell conversion in head and neck cancer.

J Immunother Cancer 2021 Mar;9(3)

Radiation Oncology, University of Colorado-Anschutz Medical Campus, Aurora, Colorado, USA

Background: Resistance to therapy is a major problem in treating head and neck squamous cell carcinomas (HNSCC). Complement system inhibition has been shown to reduce tumor growth, metastasis, and therapeutic resistance in other tumor models, but has yet to be explored in the context of HNSCC. Here, we tested the effects of complement inhibition and its therapeutic potential in HNSCC. Read More

View Article and Full-Text PDF

Dynamics of transcription-mediated conversion from euchromatin to facultative heterochromatin at the Xist promoter by Tsix.

Cell Rep 2021 Mar;34(13):108912

Department of Molecular Biology, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan. Electronic address:

The fine-scale dynamics from euchromatin (EC) to facultative heterochromatin (fHC) has remained largely unclear. Here, we focus on Xist and its silencing initiator Tsix as a paradigm of transcription-mediated conversion from EC to fHC. In mouse epiblast stem cells, induction of Tsix recapitulates the conversion at the Xist promoter. Read More

View Article and Full-Text PDF

Chemical Interface Damping of Surface Plasmon Resonances.

Acc Chem Res 2021 Mar 31. Epub 2021 Mar 31.

ConspectusMetal nanoparticles have been utilized for a vast amount of plasmon enhanced spectroscopies and energy conversion devices. Their unique optical properties allow them to be used across the UV-vis-NIR spectrum tuned by their size, shape, and material. In addition to utility in enhanced spectroscopy and energy/charge transfer, the plasmon resonance of metal nanoparticles is sensitive to its surrounding environment in several ways. Read More

View Article and Full-Text PDF

Responding to the Challenge of a Pandemic: The Rapid Conversion of Electronic Medical Record Training for Nurses From Classroom-Based Instructional Learning to a Blended Learning Approach in a Large Multisite Organization.

Comput Inform Nurs 2021 Apr;39(4):171-175

Author Affiliations: Essential Clinical Dataset Coordinator (Ms Shala), Nursing and Midwifery Services and Health Informatics Unit, Sydney Local Health District; Chief Nursing and Midwifery Information Officer and Deputy Director of Health Informatics Unit (Mr Jones), Sydney Local Health District; Clinical Senior Lecturer (Mr Jones), Faculty of Medicine and Health, University of Sydney; Associate Chief Nursing and Midwifery Information Officer (Dr Alexander), Sydney Local Health District; Adjunct Fellow (Dr Alexander), School of Nursing & Midwifery, Western Sydney University; Adjunct Lecturer (Dr Alexander), Faculty of Science, Charles Sturt University; Clinical Support and Training Manager (Ms Young), Health Informatics Unit, Sydney Local Health District; Patient and Family-Centered Care Research Nurse Consultant (Dr Fairbrother), Sydney Local Health District; and Adjunct Clinical Associate Professor (Dr Fairbrother), Faculty of Medicine and Health, University of Sydney, New South Wales, Australia.

View Article and Full-Text PDF

Development of a Low-Resource Operating Room and a Wide-Awake Orthopedic Surgery Program During the COVID-19 Pandemic.

Surg Innov 2021 Mar 29:15533506211003530. Epub 2021 Mar 29.

Department of Surgery, Fortney Breast Center, Anne Arundel Medical Center, Annapolis, MD, USA.

The COVID-19 pandemic resulted in significant medication, supply and equipment, and provider shortages, limiting the resources available for provision of surgical care. In response to mandates restricting surgery to high-acuity procedures during this period, our institution developed a multidisciplinary Low-Resource Operating Room (LROR) Taskforce in April 2020. This study describes our institutional experience developing an LROR to maintain access to urgent surgical procedures during the peak of the COVID-19 pandemic. Read More

View Article and Full-Text PDF

Effects of the natural environment and human activities on iron and manganese content in groundwater: a case study of Changchun city, Northeast China.

Environ Sci Pollut Res Int 2021 Mar 28. Epub 2021 Mar 28.

Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, China.

Excessive Fe and Mn in groundwater of the Songnen Plain, northeast China, pose a threat to water security. Human activities over recent decades have had significant effects on the water quantity and quality of the Songnen Plain. By adopting the large city of Changchun in the Songnen Plain as a research area, this study analyzed the effects of the natural environment (including characteristics of soil and aquifer, climate, and groundwater level) and human activities (including groundwater salinization, groundwater exploitation, and nitrate effects) on groundwater Fe and Mn using statistical and spatial analysis methods. Read More

View Article and Full-Text PDF