نتایج جستجو برای: viability and vigor

تعداد نتایج: 16832561  

Journal: :Research in nursing & health 2000
N E Mahon A Yarcheski T J Yarcheski

The purposes of this study were to examine symptom patterns and diminished general well-being as negative outcomes and vigor and change as positive outcomes of trait and state anger via two structural equation models. In a school auditorium, a convenience sample of 141 boys and girls, ages 12-14 years, responded to the Trait Anger Scale and the State Anger Scale and to instruments measuring gen...

Journal: :Enfoqute 2023

The aim of this study was to evaluate the quality patterns Switenia macrophylla, Cedrelinga cateniformis and Ochroma pyramidale seeds seedlings in response restoration. seed viability test performed using 1 % tetrazolium (2,3,5-triphenyl chloride) during three staining times percentage vigor levels were considered according topological pattern. Germination speed, germination capacity, morpholog...

Journal: :Bulletin of mathematical biology 2010
Mark A Lewis William Nelson Cailin Xu

A vigor-structured model for mountain pine beetle outbreak dynamics within a forest stand is proposed and analyzed. This model explicitly tracks the changing vigor structure in the stand. All model parameters, other than beetle vigor preference, were determined by fitting model components to empirical data. An abrupt threshold for tree mortality to beetle densities allows for model simplificati...

Journal: :journal of agricultural science and technology 2014
l. dong z. hao z. li j. zhu q. wang

welsh onion (allium fistulosum l.) is one of the important vegetable crops in china. however, the seeds of this crop are short-lived and their vitality tends to be easily lost in the course of storage. the present study was conducted to elucidate the effects of welsh onion seed priming with potassium nitrate (kno3) on seed vigor and on other such related mechanisms during twelve months of stora...

Journal: :Applied developmental science 2013
Adriene M Beltz Charles Beekman Peter C M Molenaar Kristin A Buss

Developmental science is rich with observations of social interactions, but few available methodological and statistical approaches take full advantage of the information provided by these data. The authors propose implementation of the unified structural equation model (uSEM), a network analysis technique, for observational data coded repeatedly across time; uSEM captures the temporal dynamics...

2013
G. V. M. F. A. G. V. C. K. S. I. C. S. A. C. N. A. A. A. A. A. Araújo

The present study aimed to verify the caprine semen characteristics during dry and rainy seasons in the Brazilian Northeast, and the influence of these seasons on cooled semen. Seminal volume, concentration, percentage of motile cells, vigor and spermatic morphology, as well as biochemical profile (fructose, citric acid, P, Ca 2+ , Mg, total proteins and phospholipase A2 activity) were analyzed...

2008
James Lowther Andrew Lane

The aim of this study was to investigate relationships between pre-competition group cohesion, mood, and performance in a soccer team over the course of a season. A male soccer team in England played eight games and data were analyzed on a game-by-game basis. Participants completed the Group Environment Questionnaire (Carron, Brawley, & Widmeyer, 1985) and Brunel Mood Scale to assess Anger, Con...

Journal: :علوم گیاهان زراعی ایران 0
حمیدرضا عیسوند استادیار دانشکده کشاورزی دانشگاه لرستان محسن آذرنیا دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه لرستان فرهاد نظریان فیروزآبادی استادیار دانشکده کشاورزی دانشگاه لرستان رضا شرفی دانشجوی کارشناسی دانشکده کشاورزی دانشگاه لرستان

this research evaluated the effects of gibberellin (ga3) and abscisic acid (aba) on emergence capability, rate of emergence, vigor index and some physiological characters of chickpea seedling (cicer arietinum l.) in a field experiment (as split) under dry and irrigated conditions. seeds were primed with 0, 50, 100 and 150 ppm of each phytohormones. examined chickpea cultivar was azad. the resul...

Journal: :Ad Hoc Networks 2013
Myounggyu Won Wei Zhang Radu Stoleru

Geographic routing is well suited for large scale sensor networks, because its per node state is independent of the network size. However, due to the local minimum caused by holes/obstacles, the path stretch of geographic routing may degrade up to O(c2), where c is the path length of the optimal route. Recently, a geographic routing protocol based on the visibility graph (VIGOR) showed that a c...

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