43,091 results match your criteria increasing light


Online Media Attention Devoted to Flour and Flour-Related Food Safety in 2017 - 2020.

J Food Prot 2021 Aug 4. Epub 2021 Aug 4.

Purdue University.

In light of extended stay-at-home periods during the COVID-19 pandemic, recent societal trends have revealed an increased use of online media to remain connected. Simultaneously, interests in at-home cooking and baking, particularly of 'comfort foods' have increased. Since flour is a crucial component in many of these products, we analyze how the U. Read More

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Impact of essential workers in the context of social distancing for epidemic control.

PLoS One 2021 4;16(8):e0255680. Epub 2021 Aug 4.

Department of Biological Sciences, Columbia University, New York City, New York, United States of America.

New emerging infectious diseases are identified every year, a subset of which become global pandemics like COVID-19. In the case of COVID-19, many governments have responded to the ongoing pandemic by imposing social policies that restrict contacts outside of the home, resulting in a large fraction of the workforce either working from home or not working. To ensure essential services, however, a substantial number of workers are not subject to these limitations, and maintain many of their pre-intervention contacts. Read More

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Non-shivering Thermogenesis Signalling Regulation and Potential Therapeutic Applications of Brown Adipose Tissue.

Int J Biol Sci 2021 13;17(11):2853-2870. Epub 2021 Jul 13.

Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China.

In mammals, thermogenic organs exist in the body that increase heat production and enhance energy regulation. Because brown adipose tissue (BAT) consumes energy and generates heat, increasing energy expenditure via BAT might be a potential strategy for new treatments for obesity and obesity-related diseases. Thermogenic differentiation affects normal adipose tissue generation, emphasizing the critical role that common transcriptional regulation factors might play in common characteristics and sources. Read More

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Are arachnoid cysts actually clinically mute in relation to neuropsychological symptoms? Cognitive functioning in children with AC of middle and cranial fossa.

Clin Neurol Neurosurg 2021 Jul 27;208:106825. Epub 2021 Jul 27.

Jagiellonian University Medical College, Clinic of Children's Neurosurgery, Kraków, Poland.

Aiming at being part of the discussion about the cognitive functioning of patients with arachnoid cysts (AC) and the value of neuropsychological testing in these patients, we present our study in which we investigated the cognitive functioning of 32 children with ACs of the middle cranial fossa. We compared the Stanford Binet 5 (SB 5) results obtained by the patients with the population mean values and analysed the relation between the patients' clinical details and the results of SB 5. The main conclusions of this research are: (1) In SB 5 tasks, the tested group performed worse than the population mean, which could be related to AC of the middle cranial fossa. Read More

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Preparation and characterization of active oxidized starch films containing licorice residue extracts and its potential against methicillin-resistant S. aureus.

Int J Biol Macromol 2021 Jul 31. Epub 2021 Jul 31.

Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, PR China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, PR China. Electronic address:

The antibacterial and antioxidant packaging films were fabricated by incorporating licorice residue extracts (LREs) into oxidized starch (OS) films. The bioactive fraction (BF) was firstly obtained from LREs by using bioassay-guided isolation method. The BF showed potent anti-Gram bacteria effects, especially against methicillin-resistant S. Read More

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Enhanced photothermal absorption in iridescent feathers.

J R Soc Interface 2021 Aug 4;18(181):20210252. Epub 2021 Aug 4.

Evolution and Optics of Nanostructures Group, Department of Biology, University of Ghent, K. L. Ledeganckstraat 35, 9000 Ghent, Belgium.

The diverse colours of bird feathers are produced by both pigments and nanostructures, and can have substantial thermal consequences. This is because reflectance, transmittance and absorption of differently coloured tissues affect the heat loads acquired from solar radiation. Using reflectance measurements and heating experiments on sunbird museum specimens, we tested the hypothesis that colour and their colour producing mechanisms affect feather surface heating and the heat transferred to skin level. Read More

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Compensatory feeding during early gestation for sows with a high weight loss after a summer lactation increased piglet birth weight but reduced litter size.

J Anim Sci 2021 Aug 3. Epub 2021 Aug 3.

Department of Animal Science, Cornell University, Ithaca, NY, USA.

Sows mated in summer produce a greater proportion of born-light piglets (<1.1 kg) which contributes to increased carcass fatness in the progeny population. The reasons for the low birth weight of these piglets remain unclear, and there have been few successful mitigation strategies identified. Read More

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Possible Role of Polarized Light Information in Spatial Recognition in the Cricket .

Zoolog Sci 2021 Aug;38(4):297-304

Department of Biology, Graduate School of Science, Kobe University, Kobe 657-8501, Japan,

Many insects are able to use skylight e-vector patterns to deduce their heading direction. Crickets have been well known to orient themselves to certain e-vector orientations to keep their walking direction. However, it is still unknown if crickets are able to utilize polarized light information for spatial recognition. Read More

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Add the Finishing Touch: Molecular Engineering of Conjugated Small Molecule for High-Performance AIE Luminogen in Multimodal Phototheranostics.

Small 2021 Aug 3:e2102044. Epub 2021 Aug 3.

Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China.

Phototheranostics based on luminogens with aggregation-induced emission (AIE) characteristics is captivating increasing research interest nowadays. However, AIE luminogens are inherently featured by inferior absorption coefficients (ε) resulting from the distorted molecular geometry. Besides, molecular innovation of long-wavelength light-excitable AIE luminogens with highly efficient phototheranostic outputs is an appealing yet significantly challenging task. Read More

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-Phenylenediammonium as a New Spacer for Dion-Jacobson Two-Dimensional Perovskites.

J Am Chem Soc 2021 Aug 3. Epub 2021 Aug 3.

Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.

Two-dimensional (2D) halide perovskites have several distinct structural classes and exhibit great tunability, stability, and high potential for photovoltaic applications. Here, we report a new series of hybrid 2D perovskites in the Dion-Jacobson (DJ) class based on aromatic -phenylenediammonium (mPDA) dications. The crystal structures of the DJ perovskite materials (mPDA)MAPbI ( = 1-3) were solved and refined using single-crystal X-ray crystallography. Read More

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Revisiting the glass transition temperature of water-glycerol mixtures in the bulk and confined in mesoporous silica.

Phys Chem Chem Phys 2021 Aug 3. Epub 2021 Aug 3.

INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina. and Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina.

In this work, we revisited the glass transition temperature (Tg) behavior of bulk and confined water-glycerol solutions as a function of the mixture composition and size of the confinement media, with the aim to shed some light on some controversies found in the literature. In the case of bulk mixtures, some discrepancies are observed due to the differences in the way of calculating Tg from the DSC experiments and differences in the protocols of cooling/reheating. However, unphysical behavior observed below the eutectic composition can be due to the crystallization of water during the cooling of the mixture. Read More

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O, S-Dual-Vacancy Defects Mediated Efficient Charge Separation in ZnInS/Black TiO Heterojunction Hollow Spheres for Boosting Photocatalytic Hydrogen Production.

ACS Appl Mater Interfaces 2021 Aug 3. Epub 2021 Aug 3.

Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, China.

Defective ZnInS nanosheets/mesoporous black TiO heterojunction hollow spheres (H-ZIS/b-TiO) are prepared through hydrothermal and surface low-temperature hydrogenation strategies, which show broad-spectrum response and excellent charge separation efficiency. This H-ZIS/b-TiO flower-like heterojunction hollow spheres with a narrow band gap of ∼1.88 eV expand the light response to visible light and show excellent photocatalytic hydrogen evolution rate (278 μmol h 50 mg) under visible-light irradiation, which is 1. Read More

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Prevalence and associated factors of post-traumatic stress disorder in Lebanon: A literature review.

Authors:
Magalie El Hajj

Asian J Psychiatr 2021 Jul 29;63:102800. Epub 2021 Jul 29.

Partner 4 Health, Oslo, Norway. Electronic address:

Lebanon has been under continuous conflict for more than four decades, putting millions of Lebanese at a high risk for post-traumatic stress disorder (PTSD) and creating a complex collective trauma. This paper aimed to review all studies from Lebanon reporting on PTSD in order to describe the prevalence of PTSD and its associated risk factors among Lebanese adults. A search of the MEDLINE/PubMed database was conducted in February/March 2021 to identify research articles on PTSD in Lebanese adults. Read More

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Valorization of waste cabbage leaves by postharvest photochemical treatments monitored with a non-destructive fluorescence-based sensor.

J Photochem Photobiol B 2021 Jul 20;222:112263. Epub 2021 Jul 20.

Research Institute of Horticulture, Konstytucji 3 Maja 1/3, Skierniewice, Poland.

The biosynthesis of polyphenolic compounds in cabbage waste, outer green leaves of white head cabbage (Brassica oleracea L. var. capitata subvar. Read More

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The chemical-microbial release and transformation of arsenic induced by citric acid in paddy soil.

J Hazard Mater 2021 Jul 23;421:126731. Epub 2021 Jul 23.

State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China.

Citric acid (CA) is the major exudate of rice roots, yet the effects of CA on arsenic (As) transformation and microbial community in flooded paddy soil have not been clearly elucidated. In this study, microcosms were established by amending CA to As contaminated paddy soils, mimicking the rhizosphere environment. Results showed that 0. Read More

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The therapeutic potential of inhibiting PPARγ phosphorylation to treat type 2 diabetes.

J Biol Chem 2021 Jul 30:101030. Epub 2021 Jul 30.

The Institute for Photonics and Advanced Sensing, and School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, 5005, Australia. Electronic address:

A promising approach for treating type 2 diabetes mellitus (T2DM) is to target the Peroxisome Proliferator Activated Receptor γ (PPARγ) transcription factor which regulates the expression of proteins critical for T2DM. Mechanisms involved in PPARγ signalling are poorly understood, yet globally increasing T2DM prevalence demands improvements in drug design. Synthetic, non-activating PPARγ ligands can abolish the phosphorylation of PPARγ at Ser273, a post-translational modification correlated with obesity and insulin resistance. Read More

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Free Energy Calculations Shed Light on the Nuclear Pore Complex's Selective Barrier Nature.

Biophys J 2021 Jul 30. Epub 2021 Jul 30.

Molecular Cell Biomechanics Laboratory, Departments of Bioengineering and Mechanical Engineering, University of California, Berkeley, CA 94720; Molecular Biophysics and Integrative Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720. Electronic address:

The nuclear pore complex (NPC) is the exclusive gateway for traffic control across the nuclear envelope. While smaller cargoes (less than 5-9 nm in size) can freely diffuse through the NPC, the passage of larger cargoes is restricted to those accompanied by nuclear transport receptors (NTRs). This selective barrier nature of the NPC is putatively associated with the intrinsically disordered, phenylalanine-glycine repeat domain containing nucleoporins, termed FG-Nups. Read More

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Assessment of the Accuracy of DFT-Predicted Li-Nucleic Acid Binding Energies.

J Chem Theory Comput 2021 Aug 2. Epub 2021 Aug 2.

Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive West, Lethbridge, Alberta T1K 3M4, Canada.

Understanding how lithium interacts with complex biosystems is crucial for uncovering the roles of this alkali metal in biology and designing extraction techniques for battery production and environmental remediation. In this light, fundamental information about Li binding to nucleic acids is required. Herein, a new database of Li-nucleic acid interactions is presented that contains CCSD(T)/CBS benchmark energies for all nucleobase and phosphate binding locations. Read More

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Effect of lithium disilicate ceramic thickness, shade and translucency on transmitted irradiance and knoop microhardness of a light cured luting resin cement.

J Mater Sci Mater Med 2021 Jul 31;32(8):90. Epub 2021 Jul 31.

Department of Restorative Dentistry, Dental Materials Division, Piracicaba Dental School, State University of Campinas - UNICAMP, Piracicaba, SP, Brazil.

This in vitro study evaluates the influence of pressed lithium disilicate thickness, shade and translucency on the transmitted irradiance and the Knoop microhardness (KHN) of a light-cured resin cement at two depths. One hundred and thirty-five ceramic discs of IPS e.max Press (Ivoclar Vivadent) were fabricated and divided into twenty-seven groups (n = 5) according to the association between translucency: HT (hight translucency), LT (low translucency), and MO (medium opacity); shade: BL2, A1 and A3. Read More

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Differential responses in EPA and fucoxanthin production by the marine diatom Stauroneis sp. under varying cultivation conditions.

Biotechnol Prog 2021 Aug 1. Epub 2021 Aug 1.

School of Science, Department of Environmental Science, Centre for Environmental Research, Sustainability and Innovation, Institute of Technology Sligo, Sligo, Ireland.

There has been an increasing drive towards better valorising raw biological materials in the context of the sustainability of bio-based industries and the circular economy. As such, microalgae hold the ability to biosynthesise valuable metabolites, which are sought after within the bioenergy, pharmaceuticals, cosmetics or nutrition sectors. Owing to their bioactivities, the xanthophyll pigment fucoxanthin and the omega-3 polyunsaturated fatty acid eicosapentaenoic acid (EPA) have fostered increasing interests in terms of sustainably refining them from natural sources, such as microalgae. Read More

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Phototoxicity of Ultraviolet-A against the Whitefly and Its Compatibility with an Entomopathogenic Fungus and Whitefly Parasitoid.

Oxid Med Cell Longev 2021 10;2021:2060288. Epub 2021 Jul 10.

Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, Guangzhou 510642, China.

Ultraviolet (UV) radiation significantly affects insect life and, as a result, has been widely used to control different invertebrate pests. The current results demonstrate that when first instar nymphs are exposed to UV-A light for 12, 24, 48, and 72 h, their developmental and biological parameters are negatively affected by UV-A exposure; the effect increased with an increase in exposure time. We hypothesized that UV-A light is compatible with other biological control agents. Read More

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FERONIA Confers Resistance to Photooxidative Stress in Arabidopsis.

Front Plant Sci 2021 15;12:714938. Epub 2021 Jul 15.

Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea.

Plants absorb light energy required for photosynthesis, but excess light can damage plant cells. To protect themselves, plants have developed diverse signaling pathways which are activated under high-intensity light. Plant photoprotection mechanisms have been mainly investigated under conditions of extremely high amount of light; thus, it is largely unknown how plants manage photooxidative damage under moderate light intensities. Read More

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Non-invasive C-Imaging Revealed the Spatiotemporal Variability in the Translocation of Photosynthates Into Strawberry Fruits in Response to Increasing Daylight Integrals at Leaf Surface.

Front Plant Sci 2021 14;12:688887. Epub 2021 Jul 14.

Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology (QST), Takasaki, Japan.

The efficiency of photosynthate translocation from leaves to fruits directly affects dry matter partitioning. Therefore, controlling photosynthate translocation dynamics is critical for high-yield and high-quality fruit production. Accordingly, photosynthate translocation changes must be characterized using data obtained at a higher spatiotemporal resolution than those provided by conventional methods. Read More

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Light-Stress Response Mediated by the Transcription Factor Mga2 in the Yeast .

Front Microbiol 2021 14;12:705012. Epub 2021 Jul 14.

Department of Biology and Biotechnology 'C. Darwin', Sapienza University of Rome, Rome, Italy.

In unicellular organisms like yeasts, which do not have specialized tissues for protection against environmental challenges, the presence of cellular mechanisms to respond and adapt to stress conditions is fundamental. In this work, we aimed to investigate the response to environmental light in . Yeast lacks specialized light-sensing proteins; however, has been reported to respond to light by increasing hydrogen peroxide level and triggering nuclear translocation of Msn2. Read More

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A light-initiated chemiluminescent assay for the detection of children's milk protein-specific IgE with excellent ability to avoid interference of specific IgG.

J Immunol Methods 2021 Jul 29:113110. Epub 2021 Jul 29.

School of Medical Laboratory, Tianjin Medical University, Tianjin, China.

The detection of allergen-specific IgE is of value for the diagnosis of children's milk allergy. However, its accuracy will interfere with the presence of high levels of specific IgG in the serum of children with milk allergy. To solve this problem, we established a light-initiated chemiluminescent assay (LICA) based on nanomicrospheres, which neutralized the interference of specific IgG by increasing the amount of antigen coated on the microspheres. Read More

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Oxygen vacancy BiO/BiWO synchronous coupling with Bi metal for phenol removal via visible and near-infrared light irradiation.

J Colloid Interface Sci 2021 Jun 16;605:342-353. Epub 2021 Jun 16.

School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China; Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, PR China.

The introduction of oxygen-defects has been a versatile strategy to enhance photocatalysis efficiency. In this work, a 2D/3D Bi/BiO/BiWO heterojunction photocatalyst with rich oxygen-defective was in sequence prepared through a facile solvothermal method, which displays favorable photocatalytic activity towards organic contaminants under visible-NIR light irradiation. The enhancement in photocatalytic performance can be attributed to the synergistic effect between oxygen-vacancy-rich heterojunction and the localized surface plasmon resonance induced by metallic Bi. Read More

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Self-assembled micelles of the (lipo) glycopeptides, teicoplanin, as taxane nanocarriers.

Nanotechnology 2021 Jul 30. Epub 2021 Jul 30.

Centro de Excelencia en Productos y Procesos Cordoba, Pabellon Ceprocor. Santa Maria de Punilla, Cordoba, 5004, ARGENTINA.

The use of nanoparticles is one of the strategies currently studied to minimize the toxicity and lack of tissue specificity of many cancer drugs used in chemotherapy. In this research the physicochemical and biological behavior of a novel self-assembled nanostructure of the antibiotic Teicoplanin (Teico) was characterized as a nanocarrier system for solubilizing highly hydrophobic drugs like Paclitaxel (Ptx) in aqueous media. The Teico micelles were loaded with Ptx in DMSO or PEG-400. Read More

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ANTI-OSTEOBLASTOGENIC, PRO-INFLAMMATORY AND PRO-ANGIOGENIC EFFECT OF EXTRACELLULAR VESICLES ISOLATED FROM THE HUMAN OSTEOSARCOMA CELL LINE MNNG/HOS.

Bone 2021 Jul 27:116130. Epub 2021 Jul 27.

Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy. Electronic address:

Extracellular Vesicles (EVs) are becoming increasingly recognized as integral signaling vehicles in several types of cancers, including bone malignancies. However, the specific mechanisms by which EVs influence osteosarcoma progression have not been fully determined. We evaluated the effects of EVs derived from the human osteosarcoma cell line MNNG/HOS (MNNG/HOS-EVs) on bone resident cells. Read More

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Light pollution forces a change in dung beetle orientation behavior.

Curr Biol 2021 Jul 27. Epub 2021 Jul 27.

Lund Vision Group, Department of Biology, Lund University, Sölvegatan 35B, 223 62 Lund, Sweden.

Increasing global light pollution threatens the night-time darkness to which most animals are adapted. Light pollution can have detrimental effects on behavior, including by disrupting the journeys of migratory birds, sand hoppers, and moths. This is particularly concerning, since many night-active species rely on compass information in the sky, including the moon, the skylight polarization pattern, and the stars, to hold their course. Read More

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Efficient mineralization of TBBPA via an integrated photocatalytic reduction/oxidation process mediated by MoS/SnInS photocatalyst.

Chemosphere 2021 Jul 13;285:131542. Epub 2021 Jul 13.

Indoor Environment Engineering Research Center of Fujian Province, Fujian University of Technology, Fuzhou, 350118, China. Electronic address:

Currently, Tetrabromobisphenol A (TBBPA) has been regarded as an emerging organic pollutant and efficient TBBPA elimination technology has been attracting increasing attention. In this work, a novel photocatalyst, MoS/SnInS, was synthesized through hydrothermal method by introducing few-layer MoS nanosheets and then employed to establish an integrated photocatalytic reduction/oxidation system for the remediation of TBBPA under visible light. The characterization results demonstrated that the few-layer MoS nanosheets were well combined with SnInS and significantly lowered the recombination rate of the photo-induced electron and holes, leading to outstanding photocatalytic performance of MoS/SnInS composite. Read More

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