234,167 results match your criteria storage


Summary and analysis of Russian and international requirements for the safe management of very low level radioactive waste and production waste containing very low active radionuclides.

J Radiol Prot 2021 Jun 22. Epub 2021 Jun 22.

Burnasyan SRC-FMBC, FMBA Rossii, Moskva, Moskva, RUSSIAN FEDERATION.

Purpose: This article gives an overview of Russian legislation and international recommendations on the safe management regulation of the accumulated very low level RW, provides the comparison of Russian and international criteria for RW attribution to this or that class and also the existing radiation safety requirements. This article also deals with the difficulties in management of production waste containing radionuclides.

Method: Criteria and standards were selected from international (ICRP and IAEA publications) and Russian (Federal Law on Management of Radioactive Waste, Government Decree on Radioactive Waste Classification, The Basic Sanitary Rules of Radiation Safety) documents for comparative analysis. Read More

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Comparison of three different acidic solutions in tendon decellularized extracellular matrix bio-ink fabrication for 3D cell printing.

Acta Biomater 2021 Jun 19. Epub 2021 Jun 19.

Department of Sports Medicine, Peking University Third Hospital. Institute of Sports Medicine of Peking University. Beijing Key Laboratory of Sports Injuries. Beijing 100191, People's Republic of China.. Electronic address:

Decellularized extracellular matrix (dECM) hydrogels are being increasingly investigated for use in bio-inks for three-dimensional cell printing given their good cytocompatibility and biomimetic properties. The osmotic pressure and stiffness of bio-ink are important factors affecting the biological functions of printed cells. However, little attention has been given to the osmotic pressure and stiffness of the dECM bio-inks. Read More

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Modeling phenotypic heterogeneity of Glycogen Storage Disease type Ia liver disease in mice by somatic CRISPR/Cas9-mediated gene editing.

Hepatology 2021 Jun 22. Epub 2021 Jun 22.

Department of Pediatrics, University Medical Center Groningen, The Netherlands.

Patients with Glycogen Storage Disease type 1a (GSD Ia) primarily present with life-threatening hypoglycemia and display severe liver disease characterized by hepatomegaly. Despite strict dietary management, long-term complications still occur, amongst which liver tumor development. Variations in residual glucose-6-phosphatase (G6PC1) activity likely contribute to phenotypic heterogeneity in biochemical symptoms and complications between patients. Read More

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Chemical and photochemical error rates in light-directed synthesis of complex DNA libraries.

Nucleic Acids Res 2021 Jun 22. Epub 2021 Jun 22.

Institute of Inorganic Chemistry, University of Vienna, Althanstraße 14, 1090 Vienna, Austria.

Nucleic acid microarrays are the only tools that can supply very large oligonucleotide libraries, cornerstones of the nascent fields of de novo gene assembly and DNA data storage. Although the chemical synthesis of oligonucleotides is highly developed and robust, it is not error free, requiring the design of methods that can correct or compensate for errors, or select for high-fidelity oligomers. However, outside the realm of array manufacturers, little is known about the sources of errors and their extent. Read More

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GLYCOGEN ACCUMULATION IN TRICHOMONAS IS DRIVEN BY THE AVAILABILITY OF EXTRACELLULAR GLUCOSE.

J Parasitol 2021 May;107(3):514-518

Department of Microbiology & Immunology, Des Moines University, Des Moines, Iowa 50312.

The parasitic protist Trichomonas vaginalis is the causative agent of trichomoniasis, a highly prevalent sexually transmitted infection. The organism is known to accumulate substantial deposits of the polysaccharide glycogen, which is believed to serve as a store of carbon and energy that can be tapped during periods of nutrient limitation. Such nutrient limitation is likely to occur when T. Read More

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Early defects in mucopolysaccharidosis type IIIC disrupt excitatory synaptic transmission.

JCI Insight 2021 Jun 22. Epub 2021 Jun 22.

Medical Genetics, CHU Sainte-Justine, Montréal, Canada.

The majority of patients affected with lysosomal storage disorders (LSD) exhibit neurological symptoms. For mucopolysaccharidosis type IIIC (MPSIIIC), the major burdens are progressive and severe neuropsychiatric problems and dementia primarily thought to stem from neurodegeneration. Using the MPSIIIC mouse model we studied whether clinical manifestations preceding massive neurodegeneration arise from synaptic dysfunction. Read More

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A Hierarchically Tailored Wrinkled Three-Dimensional Foam for Enhanced Elastic Supercapacitor Electrodes.

Nano Lett 2021 Jun 22. Epub 2021 Jun 22.

School of Chemical Engineering, Sungkyunkwan University (SKKU), Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea.

Recently, three-dimensional (3D) porous foams have been studied, but further improvement in nanoscale surface area and stretchability is required for electronic and energy applications. Herein, a general strategy is reported to form a tailored wrinkling structure on strut surfaces inside a 3D polydimethylsiloxane (PDMS) polymeric foam. Controlled wrinkles are created on the struts of 3D foam through an oxygen plasma treatment to form a bilayer surface of PDMS on uniaxially prestretched 3D PDMS foam, followed by relaxation. Read More

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Light-Regulated Natural Fluorescence of the PCC [email protected] Composite as an Encoded Microsphere for the Detection of Multiple Biomarkers.

ACS Sens 2021 Jun 22. Epub 2021 Jun 22.

State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China.

The use of color-encoded microspheres for a bead-based assay has attracted increasing attention for high-throughput multiplexed bioassays. A fluorescent PCC [email protected] composite was prepared as a bead-based assay platform by a self-assembled zeolitic imidazolate framework (ZIF-8) on the surface of inactivated PCC 6803 cells. The composite fluorescence owing to the presence of pigment proteins in PCC 6803 could be gradually bleached with the prolongation of the ultraviolet light irradiation time. Read More

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Using Helium Pycnometry to Study the Apparent Densities of Metal-Organic Frameworks.

ACS Appl Mater Interfaces 2021 Jun 22. Epub 2021 Jun 22.

Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716 United States.

When investigating the gas storage capacities of metal-organic frameworks, volumetric values are often reported based on crystallographic densities. Although it is widely accepted that Langmuir and BET surface areas of a given MOF can vary depending on the exact synthetic conditions used to prepare the materials, it is rare that deviations in density from the optimal crystallographic density are considered. The actual (apparent) densities of these materials are highly variable depending on the presence of defects, impurities, or multiple phases that arise during synthesis. Read More

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Directionally Tailoring Macroporous Honeycomb-Like Structured Carbon Nanofibers toward High-Capacitive Potassium Storage.

ACS Appl Mater Interfaces 2021 Jun 22. Epub 2021 Jun 22.

Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.

Constructing high-capacitive potassium storage materials can avoid the sluggish and unstable bulk diffusion process via a surface-induced process, which is conducive to swift and frequent potassium storage. Herein, we demonstrated the use of macroporous honeycomb-like carbon nanofibers (MHCNFs) as an excellent anode material for high-capacitive potassium storage. The as-made MHCNFs feature abundant well-controlled macropores, an amorphous structure, and a large specific surface area of around 595. Read More

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Can Dyssynergia of Vestibulosympathetic and Baroreflexes Cause Vestibular Syncope? The Hypothesis Based on the Velocity-Storage Function.

Cerebellum 2021 Jun 22. Epub 2021 Jun 22.

Dizziness Center, Clinical Neuroscience Center, Department of Neurology, Seoul National University Bundang Hospital, Seongnam, South Korea.

The mechanism of vestibular syncope, the syncope occurring during the vertigo attacks, remains uncertain. This study aims to clarify the mechanism of vestibular syncope by pursuing the function of vestibular system in cardiovascular autonomic control and by defining neuro-hemodynamic changes in vestibular syncope. By integrating the velocity-storage (VS) circuit in the brainstem and cerebellum, we propose that the vestibular syncope develops as a result of dyssynergia of the vestibulosympathetic and baroreflexes in which centrally estimated downward inertial acceleration during the vertigo attacks acts as a trigger. Read More

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Expression, Purification, and Characterization of a Well-Adapted Tyrosinase from Peatlands Identified by Partial Community Analysis.

Environ Sci Technol 2021 Jun 22. Epub 2021 Jun 22.

Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090 Wien, Austria.

In peatlands, bacterial tyrosinases (TYRs) are proposed to act as key regulators of carbon storage by removing phenolic compounds, which inhibit the degradation of organic carbon. Historically, TYR activity has been blocked by anoxia resulting from persistent waterlogging; however, recent events of prolonged summer drought have boosted TYR activity and, consequently, the release of carbon stored in the form of organic compounds from peatlands. Since 30% of the global soil carbon stock is stored in peatlands, a profound understanding of the production and activity of TYRs is essential to assess the impact of carbon dioxide emitted from peatlands on climate change. Read More

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Opening MXene Ion Transport Channels by Intercalating PANI Nanoparticles from the Self-Assembly Approach for High Volumetric and Areal Energy Density Supercapacitors.

ACS Appl Mater Interfaces 2021 Jun 22. Epub 2021 Jun 22.

College of Chemistry and Materials Engineering, Xinxiang University, Xinxiang 453003, P. R. China.

Two-dimensional (2D) MXene materials have attracted great attention as advanced energy storage devices. A TiC MXene film can be used as a high-performance electrode material for flexible supercapacitors owing to its high specific capacitance, excellent conductivity, and remarkable flexibility. Unfortunately, self-stacking of MXene nanosheets makes them hard to balance the volumetric and areal capacitance performance. Read More

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Animal Fatty Acid Synthase: A Chemical Nanofactory.

Chem Rev 2021 Jun 22. Epub 2021 Jun 22.

LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal.

Fatty acids are crucial molecules for most living beings, very well spread and conserved across species. These molecules play a role in energy storage, cell membrane architecture, and cell signaling, the latter through their derivative metabolites. synthesis of fatty acids is a complex chemical process that can be achieved either by a metabolic pathway built by a sequence of individual enzymes, such as in most bacteria, or by a single, large multi-enzyme, which incorporates all the chemical capabilities of the metabolic pathway, such as in animals and fungi, and in some bacteria. Read More

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Transfer, Amplification, Storage and Complete Self-Recovery of Supramolecular Chirality in Achiral Polymer System.

Angew Chem Int Ed Engl 2021 Jun 22. Epub 2021 Jun 22.

Soochow University, College of Chemistry, Chemical Engineering and Materials Science, CHINA.

Supramolecular chirality and its complete self-recovery ability are highly mystical in nature and biological systems, which remains a major challenge today. Herein, we firstly demonstrate that the partially cross-linked azobenzene (Azo) units can be employed as the potential chiral trigger to fully heal the destroyed helical superstructure in achiral nematic polymer system. Combining the self-assembly of Azo units and terminal hydroxyl in polymer side chains allows vapor-induced chiral nematic phase and covalent fixation of the superstructure via acetal reaction. Read More

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Sowing forests: a synthesis of seed dispersal and predation by agoutis and their influence on plant communities.

Biol Rev Camb Philos Soc 2021 Jun 22. Epub 2021 Jun 22.

Departamento de Ciências Ambientais, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, 23890-000, Brazil.

Granivorous rodents have been traditionally regarded as antagonistic seed predators. Agoutis (Dasyprocta spp.), however, have also been recognized as mutualistic dispersers of plants because of their role as scatter-hoarders of seeds, especially for large-seeded species. Read More

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Rose (Rosa hybrida) Ethylene Responsive Factor 3 Promotes Rose Flower Senescence via Direct Activation of The Abscisic Acid Synthesis-Related 9-CIS-EPOXYCAROTENOID DIOXYGENASE Gene.

Plant Cell Physiol 2021 Jun 22. Epub 2021 Jun 22.

Key Laboratory for Biology of Horticultural Plants, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China.

During plant senescence, energy and nutrients are transferred to young leaves, fruits or seeds. However, senescence reduces flower quality, which leads to huge economic losses in flower production. Ethylene is an important factor affecting the quality of cut roses during transportation and storage. Read More

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GLYCOGEN STORAGE DISEASE TYPE II: A NARRATIVE LITERATURE REVIEW AND A CASE REPORT OF LATE-ONSET POMPE DISEASE IN A YOUNG WHITE CHILD.

Wiad Lek 2021 ;74(4):1032-1036

STATE UNIVERSITY "UZHHOROD NATIONAL UNIVERSITY", UZHHOROD, UKRAINE.

At all ages, skeletal muscle weakness characterizes Pompe disease, causes mobility problems and affects the respiratory system. We aimed to provide a narrative review of terminology, etiology, epidemiology, clinical manifestations, complications, and prognosis of Pompe disease, supported with a clinical case presentation. The clinical manifestation and complications of Pompe disease are illustrated with the clinical case presentation of a late-onset form in a white child. Read More

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January 2021

Nitrogen and Fluorine Dual Doping of Soft Carbon Nanofibers as Advanced Anode for Potassium Ion Batteries.

Small 2021 Jun 21:e2101576. Epub 2021 Jun 21.

Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, 999078, China.

Potassium-ion batteries (PIBs) are recognized as promising alternatives for lithium-ion batteries as the next-generation energy storage systems. However, the larger radius of K hinders the K insertion into the conventional carbon electrode and results in sluggish potassiation kinetics and poor cycling stability. Here, nitrogen and fluorine dual doping of soft carbon nanotubes (NFSC) anode are synthesized in one pot, achieving extraordinary electrochemical performance for PIBs. Read More

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Effects of different thawing methods on the physicochemical changes, water migration and protein characteristic of frozen pompano (Trachinotus ovatus).

J Food Biochem 2021 Jun 21:e13826. Epub 2021 Jun 21.

College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.

The effects of five thawing methods (ultrasonic thawing [UT], radiofrequency thawing [RFT], water immersion thawing [WIT], microwave thawing [MT], and cold storage thawing [CST]) on physicochemical properties, water migration, and protein characteristic of whole frozen pompano (Trachinotus ovatus) were investigated and compared with fresh samples (FS). The physicochemical changes of thawed pompano were analyzed based on pH, total volatile basic nitrogen (TVB-N), color difference. The protein aggregation, physicochemical properties and conformation of myofibrillar proteins (MPs) were evaluated by Sodium dodecyl sulfate polyacrylamide gel electrophoresis, differential scanning calorimetry, and Raman spectra, respectively. Read More

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Complexing hemp seed protein with pectin for improved emulsion stability.

J Food Sci 2021 Jun 22. Epub 2021 Jun 22.

Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24073, USA.

Hemp seed protein has the potential to be used in food systems as an emulsifying agent; however, there are still some shortcomings associated with hemp seed protein, such as poor solubility and tendency to aggregate. This study aims to improve the dispersibility of hemp seed protein as an emulsifier by complexing with pectin, driven by electrostatic force. Three protein to pectin ratios were used for complexation, from 1:1, 2:1 to 4:1. Read More

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Neurocognitive subprocesses of working memory performance.

Cogn Affect Behav Neurosci 2021 Jun 21. Epub 2021 Jun 21.

University of California Los Angeles, Los Angeles, CA, USA.

Working memory (WM) has been defined as the active maintenance and flexible updating of goal-relevant information in a form that has limited capacity and resists interference. Complex measures of WM recruit multiple subprocesses, making it difficult to isolate specific contributions of putatively independent subsystems. The present study was designed to determine whether neurophysiological indicators of proposed subprocesses of WM predict WM performance. Read More

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Extracellular vesicles from thalassemia patients carry iron-containing ferritin and hemichrome that promote cardiac cell proliferation.

Ann Hematol 2021 Jun 21. Epub 2021 Jun 21.

Graduate Program in Immunology, Department of Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.

Extracellular vesicles (EVs) are bioactive, submicron-sized membrane vesicles released from all cell types upon activation or apoptosis. EVs including microparticles (MPs) and exosomes have emerged as important mediators of cell-to-cell communication in both normal and pathological states including thalassemia (thal). However, the role of EVs derived from β-thal patients with iron overload (+ IO) and without iron overload (-IO) on cardiac cells is unclear. Read More

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TOSDS: Tenant-centric Object-based Software Defined Storage for Multitenant SaaS Applications.

Arab J Sci Eng 2021 Jun 16:1-15. Epub 2021 Jun 16.

Jaypee Institute of Information Technology, Noida, India.

Enormous amounts of unstructured data such as images, videos, emails, sensors' data and documents of multiple types are being generated daily by varied applications. Apart from the challenges related to collection or processing of this data, its efficient storage is also a significant challenge since this data do not conform to any predefined storage model. Therefore, any enterprise dealing with huge unstructured data requires a scalable storage system that can provide data durability and availability at a low cost. Read More

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Ramping up a heuristic procedure for storage location assignment problem with precedence constraints.

Flex Serv Manuf J 2021 Jun 17:1-24. Epub 2021 Jun 17.

Faculty of Economics, Universidade Do Porto, R. Dr. Roberto Frias, s/n, 4200-464 Porto, Portugal.

The retail industry is becoming increasingly competitive; as a result, companies are seeking to reduce inefficiencies in their supply chains. One way of increasing the efficiency of operations inside a warehouse is by better allocating products in the available spaces. In this paper, we propose a new heuristic approach to solving the storage location assignment problem (SLAP) considering precedence constraints, in multi-aisle, multi-product picking warehouses. Read More

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"Candidatus Dechloromonas phosphoritropha" and "Ca. D. phosphorivorans", novel polyphosphate accumulating organisms abundant in wastewater treatment systems.

ISME J 2021 Jun 21. Epub 2021 Jun 21.

Center for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark.

Members of the genus Dechloromonas are often abundant in enhanced biological phosphorus removal (EBPR) systems and are recognized putative polyphosphate accumulating organisms (PAOs), but their role in phosphate removal is still unclear. Here, we used 16S rRNA gene sequencing and fluorescence in situ hybridization (FISH) to investigate the abundance and distribution of Dechloromonas spp. in Danish and global wastewater treatment plants. Read More

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A metabolomic study of Gomphrena agrestis in Brazilian Cerrado suggests drought-adaptive strategies on metabolism.

Sci Rep 2021 Jun 21;11(1):12933. Epub 2021 Jun 21.

Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå Plant Science Centre, 901 83, Umeå, Sweden.

Drought is the main factor that limits the distribution and productivity of plant species. In the Brazilian Cerrado, the vegetation is adapted to a seasonal climate with long- and short-term periods of drought. To analyze the metabolic strategies under such conditions, a metabolomic approach was used to characterize Gomphrena agrestis Mart. Read More

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Novel technologies for emission reduction complement conservation agriculture to achieve negative emissions from row-crop production.

Proc Natl Acad Sci U S A 2021 Jul;118(28)

HHMI, Duke University, Durham, NC 27708.

Plants remove carbon dioxide from the atmosphere through photosynthesis. Because agriculture's productivity is based on this process, a combination of technologies to reduce emissions and enhance soil carbon storage can allow this sector to achieve net negative emissions while maintaining high productivity. Unfortunately, current row-crop agricultural practice generates about 5% of greenhouse gas emissions in the United States and European Union. Read More

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Progression of vertebral bone disease in mucopolysaccharidosis VII dogs from birth to skeletal maturity.

Mol Genet Metab 2021 Jun 15. Epub 2021 Jun 15.

Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, 3450 Hamilton Walk, Philadelphia, PA, USA; Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, 3450 Hamilton Walk, Philadelphia, PA, USA. Electronic address:

Mucopolysaccharidosis (MPS) VII is a lysosomal storage disorder characterized by deficient β-glucuronidase activity, leading to accumulation of incompletely degraded heparan, dermatan and chondroitin sulfate glycosaminoglycans. Patients with MPS VII exhibit progressive spinal deformity, which decreases quality of life. Previously, we demonstrated that MPS VII dogs exhibit impaired initiation of secondary ossification in the vertebrae and long bones. Read More

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