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https://www.readbyqxmd.com/read/29165155/association-between-high-and-low-ambient-temperature-and-out-of-hospital-cardiac-arrest-with-cardiac-etiology-in-japan-a-case-crossover-study
#1
Shin Yamazaki, Takehiro Michikawa
OBJECTIVE: The objective of the study was to examine the association between high and low temperature and out-of-hospital cardiac arrest (OHCA) with cardiac etiology. METHODS: The study was conducted under a case-crossover design. Subjects were 97,500 patients aged 40 years or older with OHCA having a cardiac etiology in Tokyo, Osaka, and Fukuoka Prefecture from 2005 to 2012. We used national data with an Utstein-style resuscitation registration. Temperature was categorized into five categories with cut points of 5, 10, 24, and 30 °C...
July 13, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29164796/the-effect-of-daylight-versus-darkness-on-driver-sleepiness-a-driving-simulator-study
#2
Christer Ahlström, Anna Anund, Carina Fors, Torbjörn Åkerstedt
Driver sleepiness studies are often carried out with alert drivers during daytime and sleep-deprived drivers during night-time. This design results in a mixture of different factors (e.g. circadian effects, homeostatic effects, light conditions) that may confound the results. The aim of this study was to investigate the effect of light conditions on driver sleepiness. Thirty young male drivers (23.6 ± 1.7 years old) participated in a driving simulator experiment where they drove on a rural road. A 2 × 2 design was used with the conditions daylight versus darkness, and daytime (full sleep) versus night-time (sleep deprived)...
November 22, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29160836/an-in-vitro-study-of-the-photodynamic-effectiveness-of-go-ag-nanocomposites-against-human-breast-cancer-cells
#3
Fozia Shaheen, Muhammad Hammad Aziz, Muhammad Fakhar-E-Alam, Muhammad Atif, Mahvish Fatima, Riaz Ahmad, Atif Hanif, Saqib Anwar, Fatima Zafar, Ghazanfar Abbas, Syed Mansoor Ali, Mukhtar Ahmed
Graphene-based materials have garnered significant attention because of their versatile bioapplications and extraordinary properties. Graphene oxide (GO) is an extremely oxidized form of graphene accompanied by the functional groups of oxygen on its surface. GO is an outstanding platform on which to pacify silver nanoparticles (Ag NPs), which gives rise to the graphene oxide-silver nanoparticle (GO-Ag) nanocomposite. In this experimental study, the toxicity of graphene oxide-silver (GO-Ag) nanocomposites was assessed in an in vitro human breast cancer model to optimize the parameters of photodynamic therapy...
November 21, 2017: Nanomaterials
https://www.readbyqxmd.com/read/29156416/the-natural-context-of-wellbeing-ecological-momentary-assessment-of-the-influence-of-nature-and-daylight-on-affect-and-stress-for-individuals-with-depression-levels-varying-from-none-to-clinical
#4
Femke Beute, Yvonne A W de Kort
This paper explores how everyday encounters with two natural phenomena -natural elements and daylight- influence affect and stress levels for people differing in mental health. Nature and daylight exposure both have well-documented beneficial effects on mental health and affect but to what extent their exposure has beneficial effects in daily life is currently under investigated, as is the question whether lower mental health would make one more, or instead, less responsive. To this end, an ecological momentary assessment protocol was employed for a period of 6 days...
November 17, 2017: Health & Place
https://www.readbyqxmd.com/read/29153988/isolation-and-comparative-transcriptome-analysis-of-human-fetal-and-ipsc-derived-cone-photoreceptor-cells
#5
Emily Welby, Jorn Lakowski, Valentina Di Foggia, Dimitri Budinger, Anai Gonzalez-Cordero, Aaron T L Lun, Michael Epstein, Aara Patel, Elisa Cuevas, Kamil Kruczek, Arifa Naeem, Federico Minneci, Mike Hubank, David T Jones, John C Marioni, Robin R Ali, Jane C Sowden
Loss of cone photoreceptors, crucial for daylight vision, has the greatest impact on sight in retinal degeneration. Transplantation of stem cell-derived L/M-opsin cones, which form 90% of the human cone population, could provide a feasible therapy to restore vision. However, transcriptomic similarities between fetal and stem cell-derived cones remain to be defined, in addition to development of cone cell purification strategies. Here, we report an analysis of the human L/M-opsin cone photoreceptor transcriptome using an AAV2/9...
November 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29151601/antimicrobials-daylight-robbery-by-acinetobacter
#6
Andrea Du Toit
No abstract text is available yet for this article.
November 20, 2017: Nature Reviews. Microbiology
https://www.readbyqxmd.com/read/29148097/ce3-sensitized-tm3-mn2-doped-nayf4-colloidal-nanocrystals-intense-cool-white-light-from-phosphor-coated-uv-led
#7
Venkataramanan Mahalingam, Venkata N K B Adusumalli, Heramba V S R M Koppisetti
Intense white light emission is observed from colloidal single component NaYF4:Ce3+/Tm3+/Mn2+ nanocrystals. This combination is interesting as it uses Mn2+ ions instead of green and red emitting Ln3+ ions which are expensive and less abundant. The single band blue emission of Tm3+ ions was combined with the broadband greenish yellow emission of Mn2+ ions to produce strong white light emission using Ce3+ ions as excitation source. Interestingly, there is hardly any re-absorption of blue emission by Mn2+ ions and the spectrum matches the commercial Ce3+-doped YAG phosphor coated over blue LED...
November 17, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29144157/the-influence-of-sunlight-exposure-on-hospitalization-in-emergency-psychiatry
#8
Andrea Aguglia, Antonio Borsotti, Francesco Cuniberti, Gianluca Serafini, Mario Amore, Giuseppe Maina
OBJECTIVE: Environmental conditions during early life may affect individual vulnerability to both physiological changes as well as psychiatric conditions, especially in those with a genetic susceptibility. Among all factors, sunlight exposure intensity has a crucial effect on affecting circadian functions high-risk individuals. A potential explanation of this relation is that excessive sunlight exposure is able to impair biological mechanisms, possibly through the dysregulation of serotonin and/or melatonin production/metabolism...
November 16, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29143435/risk-factors-for-falls-among-older-aboriginal-and-torres-strait-islander-people-in-urban-and-regional-communities
#9
Caroline Lukaszyk, Kylie Radford, Kim Delbaere, Rebecca Ivers, Kris Rogers, Catherine Sherrington, Anne Tiedemann, Julieann Coombes, Gail Daylight, Brian Draper, Tony Broe
OBJECTIVE: To examine associations between fall risk factors identified previously in other populations and falls among Aboriginal people aged 60 years and older, living in New South Wales, Australia. METHODS: Interviews were conducted with older Aboriginal people in five urban and regional communities. Associations between past falls and 22 fall predictor variables were examined using linear and multiple regression analyses. RESULTS: Of the 336 participants, 80 people (24%) reported at least one fall in the past year, and 34 (10%) reported two or more falls...
November 15, 2017: Australasian Journal on Ageing
https://www.readbyqxmd.com/read/29136306/patient-and-physician-satisfaction-in-an-observational-study-with-methyl-aminolevulinate-daylight-photodynamic-therapy-in-the-treatment-of-multiple-actinic-keratoses-of-the-face-and-scalp-in-6-european-countries
#10
M C Fargnoli, S H Ibbotson, R E Hunger, G Rostain, M T W Gaastra, L Eibenschutz, C Cantisani, A W Venema, S Medina, N Kerrouche, B Pérez-Garcia
BACKGROUND: Guidelines recommend treating actinic keratoses (AK) as they are recognized as precursors of invasive squamous cell carcinoma. OBJECTIVE: The objective of this study was to collect real-world clinical data on the use of methyl aminolevulinate daylight-photodynamic therapy (MAL DL-PDT) for the treatment of face and scalp AK in Europe. METHODS: A prospective, multicenter, non-interventional study was conducted in 6 European countries in patients receiving a single treatment of MAL DL-PDT for face and/or scalp AK...
November 14, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29128249/nationwide-ground-level-ozone-measurements-in-china-suggest-serious-risks-to-forests
#11
Pin Li, Alessandra De Marco, Zhaozhong Feng, Alessandro Anav, Daojing Zhou, Elena Paoletti
We processed hourly ozone (O3) concentrations collected in 2015 and in 2016 by a network of 1497 stations across China, with the main aim of assessing the risk that present ambient O3 exposure is posing to Chinese forests. Our results indicate that the values of the metrics AOT40 (the accumulated hourly O3 concentrations above 40 ppb during daylight hours) recommended as European Union standard, and W126 (the sum of weighted hourly concentrations from 8:00 to 20:00) recommended as USA standard for forest protection, exceeded the critical levels (5 ppm h across 6 months for AOT40 and 7-21 ppm h over 3 months for W126) on average by 5...
November 8, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29127870/concentrations-of-several-phthalates-contaminants-in-egyptian-bottled-water-effects-of-storage-conditions-and-estimate-of-human-exposure
#12
Ghada Zaki, Tamer Shoeib
The occurrence and concentrations of six common phthalates were investigated for the first time in bottled water locally produced in the Egyptian market. The compounds investigated were dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP), n-butyl benzyl phthalate (BBP), diethyl hexyl phthalate (DEHP), and Di-n-octyl phthalate (D-n-OP). A set of 108 bottled water samples from six different commercial brands of water bottled in transparent polyethylene terephthalate (PET) plastic bottles with high density polyethylene (HDPE) plastic caps were investigated...
November 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29122177/ascospore-release-in-apple-scab-underlies-infrared-sensation
#13
Katja Ehlert, Meike Piepenbring, Andreas Kollar
The agent of apple scab disease (Venturia inaequalis) is the most common pathogen in apple cultivation. Its ascospores are released in spring, mainly during daylight hours and triggered by rain events. To investigate the causes of diurnal rhythm of ascospore dissemination of the apple scab fungus ascospore releases were examined continuously with spore traps in the orchard and with laboratory assays. One of the spore traps was illuminated at night with different light sources in each year during 2011-2015. The laboratory assays were performed with different light sources with varying wavelengths and intensities...
December 2017: Fungal Biology
https://www.readbyqxmd.com/read/29113436/silver-calcium-and-copper-molybdate-compounds-preparation-antibacterial-activity-and-mechanisms
#14
Dajana Tanasic, Adriana Rathner, Jan Philipp Kollender, Petr Rathner, Norbert Müller, Karl Christian Zelenka, Achim Walter Hassel, Cezarina Cela Mardare
Developing novel compounds with antimicrobial properties can be an effective approach to decreasing the number of healthcare-associated infections, particularly in the context of medical devices and touch surfaces. A variety of molybdate powders (Ag2MoO4, CaMoO4, CuMoO4 and Cu3Mo2O9) were synthesized and characterized, and Escherichia coli was used as a model gram-negative bacterium to demonstrate their antimicrobial properties. Optical density measurements, bacterial colony growth, and stained gel images for protein expression clearly showed that silver- and copper molybdates inhibit bacterial growth, whereas CaMoO4 exhibited no bactericidal effect...
November 7, 2017: Biointerphases
https://www.readbyqxmd.com/read/29108038/prepartum-daylight-exposure-increases-serum-calcium-concentrations-in-dairy-cows-at-the-onset-of-lactation
#15
R Özçelik, R M Bruckmaier, L E Hernández-Castellano
In dairy cows, hypocalcemia is caused by the sudden calcium demand by the mammary gland at the onset of lactation. Calcitriol (1,25-dihydroxy vitamin D; 1,25-VitD) increases the intestinal calcium absorption and the renal calcium reabsorption. Daylight contributes to the formation of 1,25-VitD, as it transforms 7-dehydrocholesterol into cholecalciferol, a 1,25-VitD precursor. Calving pens are usually set in quiet places where cows can stay calm and relaxed before parturition. However, those pens often have poor lighting conditions and therefore cows may become vitamin D deficient because of inadequate daylight exposure...
October 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/29106373/the-formation-of-the-light-sensing-compartment-of-cone-photoreceptors-coincides-with-a-transcriptional-switch
#16
Janine M Daum, Özkan Keles, Sjoerd Jb Holwerda, Hubertus Kohler, Filippo M Rijli, Michael Stadler, Botond Roska
High-resolution daylight vision is mediated by cone photoreceptors. The molecular program responsible for the formation of their light sensor, the outer segment, is not well understood. We correlated daily changes in ultrastructure and gene expression in postmitotic mouse cones, between birth and eye opening, using serial block-face electron microscopy (EM) and RNA sequencing. Outer segments appeared rapidly at postnatal day six and their appearance coincided with a switch in gene expression. The switch affected over 14% of all expressed genes...
November 6, 2017: ELife
https://www.readbyqxmd.com/read/29096695/floral-micromorphology-and-transcriptome-analyses-of-a-fragrant-vandaceous-orchid-vanda-mimi-palmer-for-its-fragrance-production-sites
#17
Conie Toh, Ab Rahim Mohd-Hairul, Nooraini Mohd Ain, Parameswari Namasivayam, Rusea Go, Nur Ashikin Psyquay Abdullah, Meilina Ong Abdullah, Janna Ong Abdullah
BACKGROUND: Vanda Mimi Palmer (VMP) is commercially valuable for its strong fragrance but little is known regarding the fragrance production and emission sites on the flowers. RESULTS: Olfactory perception detected fragrance only from the petals and sepals. Light and Environmental Scanning Electron microscopy analyses on fresh tissues showed distributions of stomata and trichomes concentrated mostly around the edges. These results paralleled the rich starch deposits and intense neutral red stain, indicating strong fragrance and trichomes as potential main fragrance release sites...
November 2, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29094348/child-directed-speech-is-infrequent-in-a-forager-farmer-population-a-time-allocation-study
#18
Alejandrina Cristia, Emmanuel Dupoux, Michael Gurven, Jonathan Stieglitz
This article provides an estimation of how frequently, and from whom, children aged 0-11 years (Ns between 9 and 24) receive one-on-one verbal input among Tsimane forager-horticulturalists of lowland Bolivia. Analyses of systematic daytime behavioral observations reveal < 1 min per daylight hour is spent talking to children younger than 4 years of age, which is 4 times less than estimates for others present at the same time and place. Adults provide a majority of the input at 0-3 years of age but not afterward...
November 2, 2017: Child Development
https://www.readbyqxmd.com/read/29084345/a-gis-based-quantitative-approach-for-the-search-of-clandestine-graves-italy
#19
Roberta Somma, Maria Cascio, Massimiliano Silvestro, Eliana Torre
Previous research on the RAG color-coded prioritization systems for the discovery of clandestine graves has not considered all the factors influencing the burial site choice within a GIS project. The goal of this technical note was to discuss a GIS-based quantitative approach for the search of clandestine graves. The method is based on cross-referenced RAG maps with cumulative suitability factors to host a burial, leading to the editing of different search scenarios for ground searches showing high-(Red), medium-(Amber), and low-(Green) priority areas...
October 30, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29070025/daylight-photodynamic-therapy-versus-cryosurgery-for-the-treatment-and-prophylaxis-of-actinic-keratoses-of-the-face%C3%A2-%C3%A2-protocol-of-a-multicenter-prospective-randomized-controlled-two-armed-study
#20
E Kohl, M Koller, F Zeman, R-M Szeimies, W G Philipp-Dormston, W Prager, P A Gerber, S Karrer
BACKGROUND: Photodynamic therapy with daylight (DL-PDT) is efficacious in treating actinic keratosis (AK), but the efficacy of field-directed, repetitive DL-PDT for the treatment and prophylaxis of AK in photodamaged facial skin has not yet been investigated. METHODS/DESIGN: In this multicenter, prospective, randomized, controlled, two-armed, observer-blinded trial, patients with a minimum of 5 mild-to-moderate AK lesions on photodamaged facial skin are randomly allocated to two treatment groups: DL-PDT with methyl aminolevulinate (MAL) and cryosurgery...
October 25, 2017: BMC Dermatology
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