نتایج جستجو برای: summer and winter solstice

تعداد نتایج: 16841834  

2013
Fahad Mohammed Al-Jasass

Spoilage of meat has remained a serious challenge in developing countries. The objective of this study was to evaluate the beef and lamb meat quality from supermarkets and shops in summer and winter season. Beef and lamb meat were stored at 4±1 o C during 5 days and test for microbiological properties, oxidation stability, and color properties, in beef and lamb meat. Samples were collected from...

2006
Ming Xu Chih-Pei Chang Congbin Fu Ye Qi Alan Robock David Robinson Huai-min Zhang

[1] It is commonly believed that greenhouse-gas-induced global warming can weaken the east Asian winter monsoon but strengthen the summer monsoon, because of stronger warming over high-latitude land as compared to low-latitude oceans. In this study, we show that the surface wind speed associated with the east Asian monsoon has significantly weakened in both winter and summer in the recent three...

2017
Honglei Wang Junlin An Bin Zhu Lijuan Shen Qing Duan Yuanzhe Shi

In order to investigate the size distributions and seasonal variations of carbonaceous aerosols (organic carbon (OC) and elemental carbon (EC)), the carbonaceous species were collected in Nanjing, a typical industrial city located in Yangtze River Delta, China, in the summer, autumn, and winter of 2013 and spring of 2014, and then analyzed by using a 9-stage Anderson-type aerosol sampler and DR...

2012
Jeff Cumpston Keith Lovegrove José Zapata John Pye

A model for calculating annual system costs that are associated with collector placement for an array of paraboloidal dishes with a steam energy transport network is presented. All possible lattices that define a regularly-spaced dish-array within a discrete finite parameter space are applied to a previously proposed array shape and energy transport network topology. An optimum lattice, subject...

Journal: :Endokrynologia Polska 2011
Zahra Kashi Fatemeh sima Saeedian Ozra Akha Mohamad ali Hydari Gorgi Saydeh fatemeh Emadi Hamidreza Zakeri

BACKGROUND Vitamin D deficiency is high in winter because of reduced exposure to sunlight. It seems that in places with high humidity and a sultry climate, exposure to sunlight in summer can be low too. This study was designed to determine the vitamin D deficiency prevalence in Sari, a city with a high humidity climate at the end of summer, and compare it to winter. MATERIAL AND METHODS This ...

Journal: :Proceedings. Biological sciences 2008
Oliver M Beckers Johannes Schul

Male calls of the katydid Neoconocephalus triops exhibit substantial developmental plasticity in two parameters: (i) calls of winter males are continuous and lack the verse structure of summer calls and (ii) at equal temperatures, summer males produce calls with a substantially higher pulse rate than winter males. We raised female N. triops under conditions that reliably induced either summer o...

2015
Q. Xie S. Bai Y. Li L. Liu S. Wang J. Xi

69 ABSTRACT: This study investigated the microbial community in a full scale anaerobic baffled reactor and sequencing batch reactor system for oil-produced water treatment in summer and winter. The community structures of fungi and bacteria were analyzed through polymerase chain reaction–denaturing gradient gel electrophoresis and Illumina highthroughput sequencing, respectively. Chemical oxyge...

2013
S. T. Naphade K. V. Chaudhari S. T. Naphade K. V. Chaudhari

The present communication deals with the study of seasonal prevalence of parasitic helminths in broiler chickens from Marathwada region of Maharashtra. The study was conducted during, annual cycle June 2012 to May 2013 from different sampling station and different season to estimate the seasonal prevalence of parasitic helminths. For this study annually 279 broiler chickens were randomly select...

Journal: :Journal of affective disorders 1999
P Graw S Recker L Sand K Kräuchi A Wirz-Justice

BACKGROUND The annual decrease of daylight duration initiates a depressive phase in patients with seasonal affective disorder (SAD), and light therapy treats it. How much bright light exposure in winter and summer these patients actually receive may help understand the pathogenetic factors initiating SAD. METHODS During a week in winter and summer, women with and without SAD kept daily logs o...

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