Results 121 to 130 of about 110,017 (308)

Effect of artificial photoperiod on the blood cell indices of the catfish, Clarias batrachus [PDF]

Journal of Stress Physiology & Biochemistry, 2010
The present study is aimed to assess the influence of artificial photoperiod on the blood cell indices of an Indian catfish, Clarias batrachus(Linn.).
S Srivastava, Sanjeev K Choudhary
doaj  

Subchronic Exposure to Arsenic and Nickel Triggers Nitrosative Stress and Histological Alterations in the Rat Liver

Journal of Applied Toxicology, EarlyView.
ABSTRACT Environmental exposure to heavy metals poses a threat to human health. Several studies documented harmful effects on the liver after arsenic and nickel exposure at concentrations beyond permissible limits. Nevertheless, the impact of a simultaneous exposure to both elements on hepatic biochemistry and histology remains unelucidated. Therefore,
Thainá Iasbik‐Lima, Luiz Otávio Guimarães‐Ervilha, Isabela Pereira da Silva Bento, Renê Chagas da Silva, Mariana Machado‐Neves   +4 more
wiley   +1 more source

Identification of photoperiod as a regulator of dopamine-mediated behavior in female mice

Neurobiology of Sleep and Circadian Rhythms
Photoperiod is the primary environmental cue that regulates changes in behavior across seasons. Previously, we have shown that photoperiod has sex-specific effects on synaptic dopamine dynamics in the nucleus accumbens (NAc).
Beimnet B. Kassaye, Alexis N. Jameson, Katherine Moore, Douglas G. McMahon, Brad A. Grueter   +4 more
doaj   +1 more source

Acute Modafinil Exposure Induces Neurobehavioral Alterations in Zebrafish: Implications for Off‐Label Cognitive Enhancement

Journal of Applied Toxicology, EarlyView.
ABSTRACT Modafinil (2‐(benzhydrylsulfinyl)acetamide) is a psychostimulant commonly prescribed for sleep disorders such as narcolepsy, excessive daytime sleepiness, and obstructive sleep apnea. Recently, its use has extended beyond clinical indications, with neurotypical individuals adopting it as a smart drug to enhance alertness and cognitive ...
Luciane Dellazari da Silva do Prado, Nicole Berton, Nicoli da Rosa Amaral, Inara Carbonera Biazus, Laíse Mattiollo, Jéssica Nardi, Karen Júlia de Souza dos Santos, Natália Freddo, Leonardo José Gil Barcellos, Luciana Grazziotin Rossato‐Grando   +9 more
wiley   +1 more source

Eye Darkening Under Dehydration Stress in the Neotropical Frog Boana punctata (Schneider, 1799)

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
Dehydration induces a strong and partially reversible increase in iris pigmentation in the Neotropical frog Boana punctata. The tight relationship between iris darkening and hydration state identifies ocular pigmentation as a simple, non‐invasive physiological biomarker with broad potential for assessing hydric stress in amphibian populations ...
Ricardo Reques, Eduardo F. Schaefer, Eduardo A. Sanabria, Leonardo D. Aguiar, Lorena B. Quiroga, Miguel Tejedo   +5 more
wiley   +1 more source

PHOTOPERIOD SENSITIVITY DURING SOYBEAN FLOWER DEVELOPMENT [PDF]

, 1995
Flowering in field-grown soybean [Glycine max (L.) Merr.] is difficult to pre-dict because the influences of photoperiod (P) and temperature are not well understood.
Acock, B., Acock, M. C.
core  

Influences of photoperiod on growth and reproduction of farmed fishes - prospects in aquaculture

Aquaculture Reports
Photoperiodism is a critical environmental factor that influences the development, growth, feeding, metabolism, and reproduction in all living organisms.
Md Al-Emran, Md Mahiuddin Zahangir, Muhammad Badruzzaman, Md Shahjahan   +3 more
doaj   +1 more source

Iron Fertilization of Soybean Genotypes Differing in Iron Use Efficiency Under Alkaline Conditions: Implications for Yield and Seed Nutritional Quality

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Soybean, a nutritionally important protein‐ and oil‐rich legume, is highly sensitive to iron (Fe) deficiency under alkaline conditions, where reduced Fe availability limits growth, yield, and seed quality. Effective biofortification therefore requires increasing seed Fe while reducing phytate that restricts Fe bioavailability.
Amir Maqbool, Ramazan Ilhan Aytekin, Sevgi Çalişkan, Emre Aksoy   +3 more
wiley   +1 more source

Wing polyphenism in a water strider is caused by photoperiod-induced expression of the Fat/Hippo pathway [PDF]

The genetic mechanisms that allow organisms to incorporate information from the environment into developmental programs that control size, shape and color are important to identify in order to more fully understand developmental plasticity and adaptation
Gudmunds, Erik,, Husby, Arild,, Armisen, David,, Khila, Abderrahman,, Eriksen, Freya   +4 more
core  

Effect of different photoperiod regimes in combination with natural and artificial light on nutrient uptake in bok choy (Brassica rapa L.) using an internet of things-based hydroponics system

Journal of Agricultural Engineering
In the present study, we analyzed the effect of using a hydroponic system inside a greenhouse and different photoperiod regimes with artificial light on the nutrient uptake of bok choy. Light duration treatment consisting of both sunlight and artificial
Bayu Taruna Widjaja Putra, Wahyu Nurkholis Hadi Syahputra, Parawita Dewanti   +2 more
doaj   +1 more source