Results 51 to 60 of about 8,976 (206)

Causal variational principles on measure spaces [PDF]

open access: yes, 2008
. Causal variational principles on measure spaces are introduced. General existence results are proved. It is shown in examples that minimizers need not be unique. Counter examples to compactness are discussed.
Finster, Felix
core   +3 more sources

Food Allergy in Children in China

open access: yesClinical &Experimental Allergy, Volume 55, Issue 8, Page 634-647, August 2025.
This review highlights significant regional variations in food allergy prevalence across China, with higher rates in economically developed coastal areas. Despite this growing burden, challenges such as limited diagnostic tools, a shortage of allergists and inadequate access to epinephrine autoinjectors hinder effective management of food allergies ...
Agnes Sze‐Yin Leung   +3 more
wiley   +1 more source

Wybrane elementy turystyki w Lasach Państwowych

open access: yesStudia Periegetica, 2007
Problemy z definicją i typologią dotyczą formy turystyki w lasach (turystyki leśnej). Literatura z tego zakresu jest skromna, a turystyce w parkach narodowych poświęcono do tej pory znacznie więcej uwagi niż w lasach.
Antoni Buraczewski
doaj  

Plant cover in planning and management of recreation areas [PDF]

open access: yes, 1983
The role of vegetation in recreative environment is discussed as well as a value of ecological data applied in spatial planning. Only phytosociological maps — real and potential vegetation maps — may be the sources of objective ecological ...
Olaczek, Romuald
core  

LASY: LAser manipulations made eaSY [PDF]

open access: yes
Using realistic laser profiles for simulations of laser-plasma interaction is critical to reproduce experimental measurements, but the interface between experiments and simulations can be challenging. Similarly, start-to-end simulations with different codes may require error-prone manipulations to convert between different representations of a laser ...
Thévenet, Maxence   +10 more
openaire   +2 more sources

Early Origins of Asthma and Allergies: Clues From Studies in China

open access: yesClinical &Experimental Allergy, Volume 55, Issue 8, Page 611-624, August 2025.
The environment we live in harbours both risk and protective factors for asthma and allergies. This is particularly relevant in China, where unique environmental and cultural factors shape disease development. The interplay between these environmental factors, airway immunity, and gut microbiome shapes the susceptibility to asthma and allergies ...
Yike Wang   +5 more
wiley   +1 more source

Rośliny starych lasów w wyspach leśnych na obszarze gminy Uniejów

open access: yesBiuletyn Uniejowski, 2023
Gmina Uniejów to obszar rolniczy – ponad 80% jej powierzchni stanowią użytki rolne, a lesistość wynosi obecnie 10,6%. Jest to teren ubogi w lasy, które na obszarze gminy są w znacznym stopniu rozdrobnione, a ich roślinność antropogenicznie zaburzona ...
Błażej Chmielecki, Leszek Kucharski
doaj   +1 more source

The Impact of Weather Risk on the Value of Ecosystem Services [PDF]

open access: yes, 2014
Zasoby naturalne i ekosystemy, które ich dostarczają stanowią podstawę naszych działań gospodarczych, decydują o jakości naszego życia oraz spójności społecznej. Jednak sposób, w jaki organizujemy nasze systemy gospodarcze nie uwzględnia w dostatecznym
Michalak, Dorota
core   +1 more source

Hidden influence of fire on locally rare and cryptic reptile species

open access: yesEcology, Volume 106, Issue 6, June 2025.
Abstract Fire responses in animal communities have been well studied, but little is known about the effects of fire on rare species due to limitations in data and modeling frameworks. Using a suite of methods to account for rarity, dominance, and incomplete sampling, we aimed to determine how post‐fire succession influenced locally rare and cryptic ...
Annabel L. Smith, Amber Shuo Ying Lim
wiley   +1 more source

Geobotanical and sozological valorization of natural habitats in selected areas of the Blue-Green Network [PDF]

open access: yes, 2006
One of the key components of The Blue-Green Network in Łódź are valuable natural areas like the relicts of the natural wildlife (called “Green Treasures of Łódź”) which parts have been preserved in Łódź in spite of two hundred years, very intense ...
Andrzejewski, Hieronim   +4 more
core  

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