نتایج جستجو برای: multigeneration

تعداد نتایج: 228  

Journal: :Environmental toxicology and chemistry 2004
Bart T A Bossuyt Colin R Janssen

A multigeneration acclimation experiment was performed with Daphnia magna exposed to copper to assess possible changes in tolerance and to establish the optimal concentration range (OCEE) of this species. The hypothesis was tested that as the bioavailable background concentration of an essential metal increases (within realistic limits), the natural tolerance (to the metal) of the acclimated/ad...

Journal: :The Journal of clinical investigation 1991
P de Knijff A M van den Maagdenberg A F Stalenhoef J A Leuven P N Demacker L P Kuyt R R Frants L M Havekes

By the careful screening of familial dysbetalipoproteinemic (FD) patients, five probands showing heterozygosity for the APOE*3-Leiden allele were found. Genealogical studies revealed that these probands share common ancestry in the 17th century. In a group of 128 family members, spanning three generations, 37 additional heterozygous APOE*3-Leiden gene carriers were detected. Although with a var...

Journal: :Bulletin of mathematical biology 2011
David E Hiebeler Isaac J Michaud Hamilton Hoxie Ackerman Shannon Reed Iosevich Andre Robinson

An SIR epidemiological community-structured model is constructed to investigate the effects of clustered distributions of unvaccinated individuals and the distribution of the primary case relative to vaccination levels. The communities here represent groups such as neighborhoods within a city or cities within a region. The model contains two levels of mixing, where individuals make more intra-g...

Journal: :Sustainability 2023

Sustaining agricultural demands is a typical problem, particularly in locations afflicted by the scarcity of fresh water, poor farming soil, and hot weather. The main goal this study to perform thermodynamic analysis an integrated multigeneration system containing direct contact membrane distillation crystallization that recovers beneficial hydroponic nutrients from seawater using renewable ene...

Journal: :Applied sciences 2022

A novel integrated system based on solid oxide fuel cells (SOFCs), a gas turbine (GT), the steam Rankine cycle (SRC), Kalina (KC), and organic (ORC) is proposed to achieve cascade energy utilization. Mathematical models are introduced performance analyzed using exergy methods. The first second laws of thermodynamics used analyze thermodynamically. In addition, destruction losses various subsyst...

Journal: :Desalination 2022

In this study, a novel multigeneration system is considered from energy, exergy, and economic points of view. The combined composed biomass gasifier, CO2 cycle, cooling system, multi-effect distillation (MED), electrodialysis was assessed. This integrated produces electricity, cooling, distilled water, sodium hydroxide (NaOH), hydrogen chloride (HCl). A parametric study regarding moisture conte...

Journal: :Genetics 2000
P D Keightley T M Bataillon

We develop a maximum-likelihood (ML) approach to estimate genomic mutation rates (U) and average homozygous mutation effects (s) from mutation-accumulation (MA) experiments in which phenotypic assays are carried out in several generations. We use simulations to compare the procedure's performance with the method of moments traditionally used to analyze MA data. Similar precision is obtained if ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید