Results 21 to 30 of about 404,503 (345)

Status and Trend of Regal Fritillary (Speyeria idalia) (Lepidoptera: Nymphalidae) in the 4th of July Butterfly Count Program in 1977–2014

open access: yesScientifica, 2016
Regal Fritillary (Speyeria idalia) primarily inhabits prairie, a native grassland of central North America, and occurs rarely in nonprairie grasslands further east. This butterfly has experienced widespread decline and marked range contraction.
Scott R. Swengel, Ann B. Swengel
doaj   +1 more source

Variability of some morphological traits of one-year old red oak, black walnut, birch and wild pear seedlings in the nurseries of Jastrebac region [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2002
Five morphological and quantitative characteristics of one-year old seedlings of Red oak (Quercus rubra L), Black walnut (Juglans nigra L), Wild pear (Pyrus pygrowser Borkh) and Birch (Betula verrucosa Ehrh) were studied.
Krstić Milun, Vojinović Nevena
doaj   +1 more source

Short-term Load Forecasting Method Based on BIRCH-CNN-GRU Model

open access: yesTaiyuan Ligong Daxue xuebao, 2023
Residential Short-term load forecasting is an important basis for power department to make dispatching plan reasonably. A short-term load forecasting framework was proposed that is based on Balanced Iterative Reducing and Clustering using Hierarchies ...
Kunqi LI, Runquan MENG, Fenglian LI
doaj   +1 more source

Introduction : biofutures/biopresents [PDF]

open access: yes, 2006
Two very different reports produced for the UK government in the last three years have connected the state of our physical health with that of our material wealth. The first of these was produced in 2003 by the Bioscience Innovation and Growth Team (BIGT)
Birch, Kean
core   +1 more source

Placental Transfusion for Asphyxiated Infants

open access: yesFrontiers in Pediatrics, 2019
The current recommendation for umbilical cord management of non-vigorous infants (limp, pale, and not breathing) who need resuscitation at birth is to immediately clamp the umbilical cord.
Anup C. Katheria   +3 more
doaj   +1 more source

Verification of three-parameter models of dependence of height on the diameter at breast height for birch stands of the European part of Russia [PDF]

open access: yesСибирский лесной журнал, 2020
Of great importance when conducting forestry operations and scientific research is the accuracy of determining the height of trees. The height of trees in a particular area is usually calculated using models, where it is a function of diameter at breast ...
A. V. Lebedev, V. V. Kuzmichev
doaj   +1 more source

The Influence of Host Condition on Post First Instar Development of the Bronze Birch Borer, \u3ci\u3eAgrilus Anxius\u3c/i\u3e (Coleoptera: Buprestidae) [PDF]

open access: yes, 2017
The bronze birch borer is a contributing factor in birch dieback. It is believed that host condition has a major influence on the development of the borer. We found that the host tree\u27s apparent condition does not appear to influence post first instar
Ball, John, Simmons, Gary
core   +2 more sources

Experimental Observation of a Calcium Silicon Double Carbonate

open access: yesAngewandte Chemie, EarlyView.
High‐pressure and ‐temperature reactions between Ca5(Si2O7)(CO3)2 tilleyite and CO2 carbon dioxide yield the first experimental evidence of the double carbonate Ca2Si(CO3)4 and a new Ca2(C4O10) phase containing tetrahedral [CO4] units. These findings reveal unexpected carbonate chemistry and highlight pathways for carbon incorporation under mantle ...
Benedito Donizeti Botan‐Neto   +6 more
wiley   +2 more sources

Neonatal Resuscitation with an Intact Cord: Current and Ongoing Trials

open access: yesChildren, 2019
Premature and full-term infants are at high risk of morbidities such as intraventricular hemorrhage or hypoxic-ischemic encephalopathy. The sickest infants at birth are the most likely to die and or develop intraventricular hemorrhage.
Anup C. Katheria
doaj   +1 more source

Yield Performance of Woody Crops on Marginal Agricultural Land in Latvia, Spain and Ukraine

open access: yesAgronomy, 2022
Agricultural land abandonment due to biophysical and socioeconomic constraints is increasing across Europe. Meanwhile there is also an increase in bioenergy demand.
Santa Celma   +7 more
doaj   +1 more source

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