keyword
MENU ▼
Read by QxMD icon Read
search

Sunrise

keyword
https://www.readbyqxmd.com/read/28073459/vertical-migration-of-karenia-brevis-in-the-northeastern-gulf-of-mexico-observed-from-glider-measurements
#1
Chuanmin Hu, Brian B Barnes, Lin Qi, Chad Lembke, David English
The toxic marine dinoflagellate, Karenia brevis (the species responsible for most of red tides or harmful algal blooms in the Gulf of Mexico), is known to be able to swim vertically to adapt to the light and nutrient environments, nearly all such observations have been made through controlled experiments using cultures. Here, using continuous 3-dimensional measurements by an ocean glider across a K. brevis bloom in the northeastern Gulf of Mexico between 1 and 8 August 2014, we show the vertical migration behavior of K...
September 2016: Harmful Algae
https://www.readbyqxmd.com/read/28057622/seasonal-ambient-changes-influence-inpatient-falls
#2
Chie Magota, Hiroyuki Sawatari, Shin-Ichi Ando, Mari K Nishizaka, Kaoru Tanaka, Kaori Horikoshi, Izumi Hoashi, Hashiguchi Nobuko, Tomoko Ohkusa, Akiko Chishaki
BACKGROUND: falls by inpatients often result in serious injuries and deterioration in a patient's physical abilities and quality of life, especially among older individuals. Although various factors have been found to be associated with falls, the combined effects of behavioural and ambient factors are not fully evaluated. OBJECTIVE: we investigated the influence of both behavioural and ambient factors on inpatient falls, focusing on seasonal and diurnal variations...
January 4, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28045131/latitude-affects-morningness-eveningness-evidence-for-the-environment-hypothesis-based-on-a-systematic-review
#3
Christoph Randler, Arash Rahafar
Morningness-eveningness (M/E) is an individual trait related to a person's sleep-wake cycle and preference for morning or evening hours. The "environment hypothesis" suggests that M/E is dependent on environmental factors, such as latitude, mean average temperature and photoperiod. We here analyzed a large number of datasets to assess this effect based on a systematic review. Data were from a total of 87 datasets and 35,589 individuals based on 28 countries. Partial correlations correcting for age revealed significant relationships between M/E and latitude, mean yearly temperature, photoperiod and sunset...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28010148/bone-health-of-the-ovahimba-people-of-north-western-namibia-in-the-context-of-urbanization-and-a-change-of-the-sociocultural-environment
#4
Anneke Wilhelm, Peyman Hadji, Mark Münzel, Hanna Daniel, Stephan Flache, Peter Nyarango, Peter Herbert Kann
The prevalence of osteoporosis in Sub-Saharan African (SSA) countries is low, however, as urbanization takes root, it is predicted that bone health will decrease dramatically. The bone health of the semi-nomadic Ovahimba people of Namibia was investigated in the context of urbanization and changes of the sociocultural environment. Furthermore, data on bone health in SSA countries is scarce; there exists no ethnic-specific reference group for people of black origin. Included in the study were 98 urban and rural living Ovahimba people...
December 23, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28005405/patellofemoral-arthritis-after-lateral-patellar-dislocation
#5
Thomas L Sanders, Ayoosh Pareek, Nicholas R Johnson, Michael J Stuart, Diane L Dahm, Aaron J Krych
BACKGROUND: The rate of patellofemoral arthritis after lateral patellar dislocation is unknown. Purpose/Hypothesis: The purpose of this study was to compare the risk of patellofemoral arthritis and knee arthroplasty between patients who experienced a lateral patellar dislocation and matched individuals without a patellar dislocation. Additionally, factors predictive of arthritis after patellar dislocation were examined. The hypothesis was that the rate of arthritis is likely higher among patients who experience a patellar dislocation compared with those who do not...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27986317/on-the-summertime-air-quality-and-related-photochemical-processes-in-the-megacity-shanghai-china
#6
Ka Lok Chan, Shanshan Wang, Cheng Liu, Bin Zhou, Mark O Wenig, Alfonso Saiz-Lopez
Summertime surface ozone (O3) and related secondary formation of fine particles are the major air quality concerns in the megacity of Shanghai. We performed mobile Cavity Enhanced Differential Optical Absorption Spectroscopy (CE-DOAS) measurements to investigate the spatial distribution of on-road nitrogen dioxide (NO2) concentrations along the Inner Ring Elevated Road (IRER) in Shanghai. The observations show a ratio of 4 between CE-DOAS averaged on-road NO2 and the in-situ ambient measurements, illustrating the strong impact of vehicle emissions over the urban area...
December 14, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27925095/peritoneal-dialysis-family-care-for-chronic-kidney-disease-patients-in-home-based-treatment
#7
Joyce Martins Arimatea Branco Tavares, Marcia Tereza Luz Lisboa, Márcia de Assunção Ferreira, Glaucia Valente Valadares, Frances Valéria Costa E Silva
Objective: to propose a family care model for patients with chronic kidney disease in peritoneal dialysis based on evidence indicated by family members. Method: this was a qualitative descriptive study that used the Convergent Care Research method. It was conducted at a state hospital in Rio de Janeiro, including techniques for recording individual interviews and consisted of a group of 19 study participants. Data were analyzed according to the stages proposed by the method, generating a category that used a cultural question as the basis for patient care resulting in a proposal for home-based family care...
November 2016: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/27920193/light-intensity-of-5-or-20%C3%A2-lux-on-broiler-behavior-welfare-and-productivity
#8
Jean-Loup Rault, Katie Clark, Peter J Groves, Greg M Cronin
Light intensity can influence broiler behavior, but discrepancies in the scientific literature remain. Furthermore, few studies have investigated the welfare implications induced by varying light intensity. We investigated the effects of providing 5 or 20 lux light intensity on broiler behavior, welfare and productivity. A total of 1,872 Ross 308 broilers of mixed sex were studied across 2 replicates. Treatments began on d 8 with one of 2 light intensity levels: 5 lux or 20 lux, using LED lights on a 16L:8D photoperiod with 30 min sunrise and sunset periods...
December 5, 2016: Poultry Science
https://www.readbyqxmd.com/read/27915477/treadmill-exercise-improves-memory-function-depending-on-circadian-rhythm-changes-in-mice
#9
Dong Sup Hwang, Hyo Bum Kwak, Il Gyu Ko, Sung Eun Kim, Jun Jang Jin, Eun Sang Ji, Hyun Hee Choi, Oh Young Kwon
PURPOSE: Exercise enhances memory function by increasing neurogenesis in the hippocampus, and circadian rhythms modulate synaptic plasticity in the hippocampus. The circadian rhythm-dependent effects of treadmill exercise on memory function in relation with neurogenesis were investigated using mice. METHODS: The step-down avoidance test was used to evaluate short-term memory, the 8-arm maze test was used to test spatial learning ability, and 5-bromo-2'-deoxyuridine immunofluorescence was used to assess neurogenesis...
November 2016: International Neurourology Journal
https://www.readbyqxmd.com/read/27905559/sailfish-migrations-connect-productive-coastal-areas-in-the-west-atlantic-ocean
#10
Chi Hin Lam, Benjamin Galuardi, Anthony Mendillo, Emily Chandler, Molly E Lutcavage
Isla Mujeres, Mexico is home to one of the most well-known aggregations of sailfish. Despite its fisheries prominence, little is known about this sailfish assemblage, or its relationship to other aggregation sites in the western Atlantic. In January 2012, April 2013 and 2014, we deployed 34 popup satellite archival tags on sailfish in order to study their behavior, population connectivity and biophysical interactions. Sailfish were monitored for up to one year, and displayed (1) predominantly shelf associated activity (2) occupancy of the Yucatán Current near Isla Mujeres for up to five months and (3) subsequent dispersals from the Yucatán to productive coastal areas in the Gulf of Mexico, the Caribbean Sea and along the South American coast...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27893649/-sunrise-in-venice
#11
(no author information available yet)
No abstract text is available yet for this article.
December 1, 2016: Spine
https://www.readbyqxmd.com/read/27803614/sunrise-in-gagliato
#12
H S Wald
No abstract text is available yet for this article.
October 2016: Current Oncology
https://www.readbyqxmd.com/read/27781473/resynchronization-of-circadian-oscillators-and-the-east-west-asymmetry-of-jet-lag
#13
Zhixin Lu, Kevin Klein-Cardeña, Steven Lee, Thomas M Antonsen, Michelle Girvan, Edward Ott
Cells in the brain's Suprachiasmatic Nucleus (SCN) are known to regulate circadian rhythms in mammals. We model synchronization of SCN cells using the forced Kuramoto model, which consists of a large population of coupled phase oscillators (modeling individual SCN cells) with heterogeneous intrinsic frequencies and external periodic forcing. Here, the periodic forcing models diurnally varying external inputs such as sunrise, sunset, and alarm clocks. We reduce the dimensionality of the system using the ansatz of Ott and Antonsen and then study the effect of a sudden change of clock phase to simulate cross-time-zone travel...
September 2016: Chaos
https://www.readbyqxmd.com/read/27770587/pollination-of-campomanesia-phaea-myrtaceae-by-night-active-bees-a-new-nocturnal-pollination-system-mediated-by-floral-scent
#14
G D Cordeiro, M Pinheiro, S Dötterl, I Alves-Dos-Santos
Bees are the most important diurnal pollinators of angiosperms. In several groups of bees a nocturnal/crepuscular habit developed, yet little is known about their role in pollination and whether some plants are adapted specifically to these bees. We used a multidisciplinary approach to investigate the reproductive biology and to understand the role of nocturnal/crepuscular bees in pollination of Campomanesia phaea (Myrtaceae), popularly named cambuci. We studied the floral biology and breeding system of C. phaea...
October 22, 2016: Plant Biology
https://www.readbyqxmd.com/read/27640010/diet-and-blood-pressure-control-in-chinese-canadians-cultural-considerations
#15
Ping Zou
Hypertension is highly prevalent in Chinese Canadians and diet has been identified as an important modifiable risk factor for hypertension. The current anti-hypertensive dietary recommendations in hypertension care guidelines lack examination of cultural factors, are not culturally sensitive to ethnic populations, and cannot be translated to Chinese Canadian populations without cultural considerations. Guided by Leininger's Sunrise Model of culture care theory, this paper investigates how cultural factors impact Chinese Canadians' dietary practice...
September 17, 2016: Journal of Immigrant and Minority Health
https://www.readbyqxmd.com/read/27638521/the-influence-of-natural-photoperiod-on-seasonal-torpor-expression-of-two-opportunistic-marsupial-hibernators
#16
James M Turner, Fritz Geiser
Many mammals use torpor throughout the year but the individual contributions of environmental variables to seasonal changes in torpor expression are often difficult to tease apart. In many mammals, torpor is most often used opportunistically in response to decreased ambient temperature (T a ) and food availability, but information on how seasonally changing photoperiod per se influences torpor patterns is scant. Therefore, we quantified patterns of torpor use in response to natural photoperiod in captive marsupial pygmy-possums held at near-constant T a with a stable food supply over a period of 19 months...
February 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/27607907/two-distinct-patterns-of-seasonal-variation-of-airborne-black-carbon-over-tibetan-plateau
#17
Mo Wang, Baiqing Xu, Ninglian Wang, Junji Cao, Xuexi Tie, Hailong Wang, Chongshu Zhu, Wei Yang
Airborne black carbon (BC) mass concentrations were measured from November 2012 to June 2013 at Ranwu and Beiluhe, located in the southeastern and central Tibetan Plateau, respectively. Monthly mean BC concentrations show a winter (November-February) high (413.2ngm(-3)) and spring (March-June) low (139.1ngm(-3)) at Ranwu, but in contrast a winter low and spring high at Beiluhe (204.8 and 621.6ngm(-3), respectively). By examining the meteorological conditions at various scales, we found that the monthly variation of airborne BC over the southeastern Tibetan Plateau (TP) was highly influenced by regional precipitation and over the hinterland by winds...
December 15, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27593270/simultaneous-photoinduced-generation-of-fe-2-and-h2o2-in-rivers-an-indicator-for-photo-fenton-reaction
#18
Khan M G Mostofa, Hiroshi Sakugawa
The photo-Fenton reaction is a key source of the highly reactive hydroxyl radical (HO) that is produced by the reaction of simultaneous photo-induced generation of Fe(2)(+)-dissolved organic matter (DOM) with H2O2 in sunlit surface waters as well as in the treatment of organic pollutants in the advanced oxidation processes (AOPs). Concentrations of both H2O2 and Fe(2)(+)-DOM were dependent on time and total solar intensity flux, and their levels were highest in the diurnal samples collected at noon compared with the samples collected during the period before sunrise and after sunset...
September 2016: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/27575777/in-vitro-and-in-silico-antioxidant-and-toxicological-activities-of-achyrocline-satureioides
#19
Andréia C F Salgueiro, Vanderlei Folmer, Hemerson S da Rosa, Márcio T Costa, Aline A Boligon, Fávero R Paula, Daniel H Roos, Gustavo O Puntel
ETHNOPHARMACOLOGICAL RELEVANCE: Achyrocline satureioides ("macela or marcela") is a medicinal plant, traditionally collected in "Good Friday" before sunrise. In traditional medicine, dried flowers of A. satureioides are used as anti-dyspeptic, antispasmodic and anti-inflammatory. AIM OF THE STUDY: To evaluate the phytochemical profile and to present an in vitro and in silico approach about toxicity and antioxidant potential of A. satureioides flowers extract and its major phytoconstituents...
December 24, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27550765/on-the-variability-of-near-surface-screen-temperature-anomalies-in-the-20-march-2015-solar-eclipse
#20
Matthew R Clark
Near-surface air temperature (NSAT) anomalies during the 20 March 2015 solar eclipse are investigated at 266 UK sites, using operational data. The high density of observing sites, together with the wide range of ambient meteorological conditions, provided an unprecedented opportunity for analysis of the spatial variability of NSAT anomalies under relatively uniform eclipse conditions. Anomalies ranged from -0.03°C to -4.23°C (median -1.02°C). The maximum (negative) anomaly lagged the maximum obscuration by 15 min on average...
September 28, 2016: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
keyword
keyword
5264
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"