Results 21 to 30 of about 1,323,565 (264)

BIRTH AND DEATH RATES, NATIONAL POPULATION FORECAST AND POPULATION POLICIES [PDF]

open access: yesIranian Journal of Public Health, 1971
This study is analyses of national population estimates and aims for the next 20 to 50 years. Calculations are based on the population of 32 million in 1973 with the relative growth rate of 32 in 1000 and death rate of 16 in 1000.Considering various aims,
K Merat
doaj   +2 more sources

Yield and Growth Indices of Hybrid Maize (Zea mays L.) as Influenced by Inter and Intra Row Spacing

open access: yesZanco Journal of Pure and Applied Sciences, 2022
To study the yield and physiological growth indices of hybrid maize a field experiment was conducted during the main cropping season under rain-fed conditions in 2020 and 2021 at Ankawa Research Center and Qushtapa zones of northern Iraq to determine ...
Alan Khasro Jawhar, Aryan S. A. Dizayee
doaj   +1 more source

Growth analysis of an aged Turkey oak coppice under conversion into high forest

open access: yesAnnals of Silvicultural Research, 2020
Most Italian research concerning the conversion of coppices analyse growth response at the stand level and adopt absolute growth as reference metric. Nonetheless, inter-individual interactions are lost when averaging tree level information at the stand ...
Monica Notarangelo, Orazio La Marca
doaj   +1 more source

Response of vegetative and morphological characteristics of common mesquite (Prosopis juliflora (Swartz) DC.) seedling, under different humidity and light factors [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2015
Light and moisture are two important environmental factors that influence seedling growth, therefore the choice of appropriate combinations of these factors is important for afforestation projects.
Babak Pilevar   +2 more
doaj   +1 more source

Growth Variation Among Thai Duckweed Species Under Axenic Conditions

open access: yesBiology
Duckweed has attracted considerable attention for its high protein content, rapid growth, and broad potential in biotechnological applications. Understanding key phenotypic traits is crucial for unlocking and maximizing this potential. While most studies
Siwaporn Jansantia   +5 more
doaj   +1 more source

A Sceptics View: “Kleiber’s Law” or the “3/4 Rule” is neither a Law nor a Rule but Rather an Empirical Approximation

open access: yesSystems, 2014
Early studies showed the metabolic rate (MR) of different-sized animals was not directly related to body mass. The initial explanation of this difference, the “surface law”, was replaced by the suggestion that MR be expressed relative to massn, where the
A. J. Hulbert
doaj   +1 more source

Unexpected Intraspecific Variability of Perennial Ryegrass (Lolium perenne L.) in Response to Constant Temperature During Germination and Initial Heterotrophic Growth

open access: yesFrontiers in Plant Science, 2022
Lolium perenne (L.) is one of the most important species in temperate grasslands. Temperature is a major factor controlling plant development. Breeding L. perenne cultivars adapted to new ranges of temperature could be necessary under most climate change
Lina Q. Ahmed   +1 more
doaj   +1 more source

Yield Comparison of Sesame Cultivars and Their Physiological Growth Indices Under Chemical and Biological Potassium Fertilizer Applications [PDF]

open access: yesIkufīziyuluzhī-i Giyāhān-i Zirā̒ī, 2018
To compare the yield and physiological growth indices of three Iranian sesame cultivars under the application of chemical and biological potassium fertilizers a pot experiment was conducted in the summer of 2015 in greenhouse. This study was performed as
Hamid Madani   +2 more
doaj  

Biological effects of chronic exposure of Blaptica dubia (Blattodea: Blaberidae) nymphs to static and extremely low frequency magnetic fields

open access: yesAnais da Academia Brasileira de Ciências, 2021
In this paper, we analyzed the effects of chronic exposure (5 months) to static magnetic field (110 mT; SMF) and extremely low frequency magnetic field (ELF MF; 10 mT, 50 Hz) on Blaptica dubia nymphs. We have examined acetylcholinesterase (AChE) activity
LARISA ILIJIN   +6 more
doaj   +1 more source

Health‐Related Quality of Life and Symptom Severity Among Patients With PIK3CA‐Related Overgrowth Spectrum: A Mixed‐Methods Study to Understand Real‐World Experience With Alpelisib Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu   +8 more
wiley   +1 more source

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