Results 21 to 30 of about 5,568,007 (311)

Production Mechanism for Quark Gluon Plasma in Heavy Ion Collisions [PDF]

open access: yes, 2002
A general scheme is proposed here to describe the production of semi soft and soft quarks and gluons that form the bulk of the plasma in ultra relativistic heavy ion collisions.
A. Perelomov   +14 more
core   +2 more sources

Chemography of Natural Product Space [PDF]

open access: yesPlanta Medica, 2015
We present the application of the generative topographic map algorithm to visualize the chemical space populated by natural products and synthetic drugs. Generative topographic maps may be used for nonlinear dimensionality reduction and probabilistic modeling. For compound mapping, we represented the molecules by two-dimensional pharmacophore features (
Tomoyuki, Miyao   +4 more
openaire   +2 more sources

Assessment of hail damages in maize using remote sensing and comparison with an insurance assessment: A case study in Lombardy

open access: yesItalian Journal of Agronomy, 2022
Studies have shown that the quantification of hail damage is generally inaccurate and is influenced by the experience of the field surveyors/technicians.
Calogero Schillaci   +5 more
doaj   +1 more source

Weather effects on European agricultural output, 1850 1913 [PDF]

open access: yes, 1999
This paper compares the effects of weather shocks on agricultural production in Britain, France and Germany during the late nineteenth century. Using semi- parametric models to estimate the non-linear agro-weather relationship, we find that weather ...
Solomou, Solomos, Wu, Weike
core   +1 more source

PROSPECTS OF LITHUANIAN SILURIAN SHALE GAS, BALTIC SEDIMENTARY BASIN; pp. 357–372 [PDF]

open access: yesOil Shale, 2016
The Baltic sedimentary basin contains numerous hydrocarbon fields in Lithuania. The Lower Silurian shales are considered as potential for shale gas exploration. The thickness of shale units within the oil window ranges from 115 to 180 m in west Lithuania.
SAULIUS SLIAUPA   +6 more
doaj   +1 more source

Dental Application of Natural Products [PDF]

open access: yesMedicines, 2018
This review article summarizes the recent progress in dental applications of natural products. Catechin gel showed selective antimicrobial activity, whereas the alkaline extract of various plant species rich in lignin carbohydrate complex (LCC) showed much higher antiviral activity than lower molecular weight polyphenols.
Hiroshi Sakagami, Mineko Tomomura
openaire   +3 more sources

Reproduction characteristics of ouled djellal rams in a semi-arid area in algeria [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2023
The assessment of reproduction characteristics of an Algerian local sheep in a semi-arid zone was the objective of this study. Twenty rams of Ouled Djellal breed were used.
Mourad TAHERTI   +3 more
doaj   +1 more source

Evolution of Lithium-Beryllium-Boron and Oxygen in the early Galaxy [PDF]

open access: yes, 2001
Oxygen is a much better evolutionary index than iron to describe the history of Lithium-Beryllium-Boron (LiBeB) since it is the main producer of these light elements at least in the early Galaxy.
Boesgaard   +11 more
core   +3 more sources

Threshold meson production and cosmic ray transport [PDF]

open access: yes, 2006
An interesting accident of nature is that the peak of the cosmic ray spectrum, for both protons and heavier nuclei, occurs near the pion production threshold. The Boltzmann transport equation contains a term which is the cosmic ray flux multiplied by the
  +13 more
core   +3 more sources

Fire history of dark needle coniferous forests in Pechora-Ilych nature reserve since second half of XIX century to present time [PDF]

open access: yesСибирский лесной журнал, 2015
A study of the vegetation cover current state in any area should start from detailed investigation of its land-use history. Historic factors are of particular importance for forest ecosystems of protected nature areas as usually they are regarded as ...
A. A. Aleynikov   +4 more
doaj   +1 more source

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