bluuebunny/crossref_metadata_2025 huggingface dataset:
White willow (Salix alba L.) variability in the Landscapes of Outstanding Features "great War Island" based on morphological traits of the leaves: A basis for assessment of gene pool
Authors: Popović Vladan , Lučić Aleksandar , Vemić Aleksandar , Jovanović Sanja , Kerkez-Janković Ivona , Šijačić-Nikolić Mirjana
Published: December 2024

The gene pool assessment of woody species has multiple significance in biotechnology. This research paper studied the morphological traits of white willow leaves in the Landscapes of Outstanding Features (LOF) "Great War Island". The variability of leaf length, width, area, and circumference, as well as the petiole length of the white willow tested trees were determined. Different parameters show varying degrees of variability. The trees were grouped into multiple clusters based on the average distance of the tested parameters. The results provide a realistic basis for evaluating the gene pool and show great potential for the conservation and production of white willow reproductive material adapted to the changed habitat conditions in Serbia. In this way, the condition of this specific area, as well as other coastal forests in Serbia, is improved. It is possible to improve protection measures against harmful organisms, primarily pathogens of white willow leaves, by applying these findings and reducing the occurrence of certain types of harmful bacteria and fungi, which are associated with decreased vitality and poor physiological condition of trees. The results obtained in the research will facilitate the management and preservation of the white willow gene pool in these unique Landscapes of Outstanding Features.
Characteristics of soils in forest management unit "Mala Ukrina"
Authors: Gačić Alen , Kapović-Solomun Marijana , Čigoja Ilija , Eremija Saša
Published: December 2024

The paper presents the results of pedological research in the area of the forest management unit "Mala Ukrina", the forest management area "Usorsko-ukrinsko". The research covered five compartments. In each compartment, a basic pedological profile was opened, a detailed study of the external and internal morphology was carried out, as well as sampling of genetic horizons for laboratory study of physical and chemical properties. According to the Soil Classification of Yugoslavia (Škorić et al., 1985) distinguished three types of soil: ranker, dystric brown soil and ilimerized soil. The geological substrates of the open profiles are sandstone and peridotite. Vegetation in the studied sections consists of Austrian and Scots pine forest crops. The analysis of the pedological cover showed the presence of all types of soil that are characteristic for this area. The aim of the work is to analyse the characteristics of the soil in this forest management unit, while defining the ecological production value.
Phytocoenological analysis of Sessile oak and Turkey oak forests (Quercetum petraeae-cerridis B. Jovanović 1979. S.l.) in the territory of Kosmaj
Authors: Stajić Snežana , Čokeša Vlado , Rakonjac Ljubinko , Eremija Saša , Mitrović Suzana , Poduška Zoran , Pavlović Branka
Published: December 2024

Phytocoenological characteristics of the association of sessile oak and Turkey oak (Quercetum petraeae-cerridis B. Jovanović 1979. s.l.) in the territory of Kosmaj are presented in the paper. This phytocoenosis has large ecological amplitude on the researched territory, it is spread over a wide range of altitudes (phytocoenological relevés are from the altitudes ranging from 348 to 573 m), on all aspects (it appears more frequently on warmer aspects) and slopes from 8° to 28°. Bedrock on which this association appears is flysch, and the soils are eutric cambisol and dystric cambisol. Based on the floristic composition and habitat conditions the association is divided into two sub-associations: typicum and caricetosum silvaticae. According to the spectrum of range types the studied association Quercetum petraeae-cerridis B. Jovanović 1979. s.l. has Central European character, while according to the life-form spectrum it is of hemicryptophyte-phanerophyte character with an increased share of geophytes.
Plant species as habitat indicators in beech forests following clearcutting
Authors: Pavlović Branka , Čokeša Vlado , Stajić Snežana , Babić Violeta , Poduška Zoran , Martać Nikola , Kanjevac Branko
Published: December 2024

In the winter of 2015, extensive damage affected forest ecosystems in Eastern Serbia due to severe ice-induced tree breakage and falls. As a result, clearcutting was necessary in certain forest stands. This study evaluates the ecological characteristics of plant species that emerged on clearcut sites five years after clearcutting. The research was conducted within the Timok Forest Region, encompassing both natural beech stands and artificially established conifer plantations on beech sites (Helleboro odori-Fagetum moesiacae Soó & Borhidi 1960). This investigation focuses only on the stocked areas within the Timok Forest Region (natural forests and artificially established stands) managed by the state-owned company "Srbijašume" in Belgrade. Vascular flora was categorised based on their affiliation with specific ecological plant groups according to the following key environmental parameters: soil moisture (V), soil acidity (K), nitrogen availability (N), light (S), and temperature (T). Spontaneously colonised plants, serving as bioindicators, reflect changes in ecological (particularly microclimatic and edaphic) conditions. Additionally, these bioindicators reveal the degradation of forest habitats post-clearcutting, which manifests as increased light penetration, xerothermic microclimatic shifts, surface soil acidification, and diminished nutrient availability.
Condition of Douglas fir trees in the urban area of Belgrade (Serbia)
Authors: Jovanović Filip , Živanović Ivana , Šurjanac Nenad , Filipović Đorđe , Jović Đorđe , Lučić Aleksandar
Published: December 2024

A total of 179 Douglas fir trees (Pseudotsuga menziesii /Mirb./ Franco) were examined in the municipality of Savski Venac, Belgrade, to assess the condition of this non-native species in Serbia and its adaptability to urban environments. Tree measurements (trunk diameter, tree height and crown diameter) were taken, and the trees were rated for vitality and decorativeness. The trees were found to be in a very good condition, with 89.05% of them showing no visible signs of disease. The average vitality rating was 3.94, and the average rating of decorativeness was 3.57. The results for vitality and some physical measurements exceeded values reported in the literature, suggesting that Douglas fir has adapted well to the urban environment of Belgrade. Although further research is needed, it can be concluded that Douglas fir is a suitable species for landscape planting in urban areas of Serbia.
The most common fungi associated with a decline of Turkey oak (Quercus cerris L.) in urban conditions in Serbia
Authors: Vemić Aleksandar , Radulović Zlatan , Mladenović Katarina , Rakonjac Ljubinko
Published: December 2024

Turkey oak (Quercus cerris) is one of the most important tree species in park forests and parks in Serbia. Despite this, there has been no available information in domestic literature about the parasitic fungi that affect Turkey oak in urban areas. Research carried out between 2016 and 2023 identified 19 taxa of parasitic and saprotrophic fungi that colonize Turkey oak in urban conditions: one on the roots, two on the leaves, two on the bark, seven on the trunk, two on the branches, two on the fruits, two on the stumps, and one on both leaves and fruits. The most significant fungi found were Fomes fomentarius, Inonotus nidus-pici, and Fuscoporia torulosa, which cause heart rot and are typically found on individual trees. Most of the fungi identified occurred in succession. Following primary damage, the most frequently occurring fungus was Stereum hirsutum, while after mechanical injuries, Schizophullym commune was most frequently recorded. Alternaria spp. was found on old leaves and heavily damaged leaves. To protect the urban Turkey oak trees, measures should be focused on reducing tree density and preventing mechanical injuries. The findings from this research also contribute to understanding the ecological characteristics of these fungal taxa based on their frequent occurrence in urban conditions.
Analysis of the chemical composition of three fungal species with medicinal properties to investigate their medical and ecological potential
Authors: Božović Jelena , Radulović Zlatan , Konatar Bojan , Stajić Snežana , Čule Nevena , Pižurica Radojica , Živojinović Dragana
Published: December 2024

This study analyzes the chemical composition of three medicinal fungal species: Fomes fomentarius, Ganoderma lucidum, and Trametes versicolor, with the aim of examining their mineral content, essential elements, trace elements, macroelements, and pH in order to evaluate their medical and ecological potential. The fungi are rich in bioactive compounds, including polysaccharides, triterpenes, and phenolic compounds, which are being studied for their potential therapeutic properties, such as anticancer, anti-inflammatory, and immunomodulatory effects. Additionally, the presence of essential minerals and trace elements, such as calcium (Ca), magnesium (Mg), iron (Fe), and zinc (Zn), contributes to their nutritional value. The study revealed that the pH values of these fungi vary. Furthermore, the analysis indicated the presence of toxic metals, such as cadmium (Cd), lead (Pb), and mercury (Hg), which may pose health risks if the fungi are consumed or used for medicinal purposes in pharmaceutical preparations. This paper also discusses the potential of these fungifungis within the context of circular bioeconomy and bioremediation, as well as their role in sustainable production and biodiversity conservation. The results suggest that these fungi have a wide range of potential applications, though further research is required to optimize their use in medicine and ecological processes.
Diversity of Eri Silkworm Samia ricini donovan, its host plants in north east India and their utilization for sustainable livelihood
Authors: Singh Bijoy Kumar
Published: December 2024

North Eastern Region of India occupies a distinct position in the country with flourishing green forests and conducive climatic condition harbouring varied flora and fauna including sericigenous insects and their host plants producing Muga, Eri, Mulberry and Oak Tasar silks. The region is recognized as one of the biodiversity hotspots among 34 biodiversity hotspots of the world. The Indian Sub-Himalayan belt extending from Jammu and Kashmir in the North West and North Eastern states in the extreme east is the natural abode of many wild sericigenous species. Among the culture of vanya silks, ericulture is emerging as one of the most vibrant socio-economic activities among all vanya silk culture in North Eastern India providing gainful occupation to about 4.00 lakh families with 70% involvement of women from weaker sections of the society. During 2022-23, total production of raw silk in the country was 36,582MT comprising of 27654 MT Mulberry (75.59%) and 8928 MT Vanya or wild silk (24.41% ) and production of eri raw silk was 7349 MT contributing about 82.31% of total vanya silk produced in the country. Production of eri raw silk in the country has increased manifold from 3116 MT during 2012-13 to 7349 MT during 2022-2023 in the last ten years with CAGR of 8.96% and ericulture is expanding in other states of the country other than north eastern states by virtue of its feasible economic implications. Presently, seven eco-races and six strains of eri silkworm are being maintained at R& D institutes of CSB for commercial exploitation while wild eri silk moth Samia canningi (Hutton) available in the foothills of the region needs to be conserved for future exploration. The paper highlights the diversity of eri silkworm and its host plants in North East India, needs for conservation of bio-resources along with prospects of utilizing their products and by-products for sustainable livelihood and upliftment of rural economy.. KEYWORDS :Ser-biodiversity, Samia ricini, Samia canningi, Conservation, Sustainable development.
Plastics - a curse for fauna-over viewing the situation
Authors: Kaur Sukhvinder
Published: December 2024

The cheap, durable plastics has become an essential part of our life nowadays, but it has created environmental crisis, affecting all life present on earth. Roughly, even ocean's 40 % surface is being covered with plastics debris and about 8 billion tonnes of it is entering every year into it. Macroplastics when undergo weathering and degradation, causes microplastics formation. Even snow from Mt.Everest has shown presence of microplastics. They are found in soil also affecting soil fauna, for which polymer fertilizer and pesticides are the contributors. The microplastics have been found accumulated in biofiltering animal bodies. They have found their way into all types of food chains.Present paper discusses about the sources, travel pathway and effects of plastics in all forms, on fauna present in land, soil and the most affected ones present in oceans. Suggestions have been given for proper management of the plastics, to save the living world, before it's too late.. KEYWORDS :Plastics, Debris, Fauna, Food Chains, Grim Picture
Phytochemical analysis of some indigenous plant extract with their toxicological and behavioural functions in wister albino rats (Berkenhout)
Authors: Mahour Kanhiya
Published: December 2024

In the present investigation we explored out three indigenous medicinal plants viz. Ailenthus excelsa, Calotropis procera and Chenopodium album from local region for toxicity as well as behavioural aspect to distinguished the efficacy of medicinal purposes in the wister albino rats (Berkenhout). Safety and toxicity trials in wistar albino rats at highest dose rate (150 mg/ kg body weight) showed that there was slight variation in phytochemical analysis. In case of behavioural changes Calotropis procera (leaves) extract showing moderate effect while in case of Ailenthus excelsa (leaves) and Chenopodium album (seeds) showing mild effect on scratching, thirst and salivation with no change in appetite, defecation, grazing was observed. In dermal toxicity trials there was no irritation, wound and other effects, while in case of eye toxicity redness and tear formation was seen when extract of Ailenthus excelsa (leaves), Calotropis procera (leaves) were used as compared to control rats. Considering all these results it is revealed that these plants have been used for herbal formulation without any toxicity trials. Hence, it is boon for herbal formulation for curing various diseases.. KEYWORDS :Toxicity, Behaviour, Ailenthus excels, Calotropis procera, Chenopodium album
Preliminary studies on butterfly diversity at some sites of Gaya District, Bihar, India.
Authors: Nayeem Md. Rashid , Madhu Medhavi
Published: December 2024

The present study reveals the diversity of butterflies at different sampling sites in theGaya districtfrom June 2022 to July 2024. Sixty-eight speciesof butterflies belonging to five families were recorded from the study area.Maximum species diversity and richness were observed during the winter season. The minimum is reported in the summer season. Common crow, common castor, common jezebel, grey pansy, chocolate pansy, plain tiger, blue tiger, tawny castor, common emigrant, peacock pansy, yellow pansy, blue pansy, great egg fly, common grass yellow, common pierrot, lime blue, common sailor, common evening brown, molted emigrant and small branded-swift were dominant species in this area. In contrast, monkey puzzle, ape fly,Indian sunbeam, common silverline, margined hedge blue, asian comma, and painted lady were rare. Pollution due to vehicles, dust particles, and many activities damage nectar and larval host plants during the breeding season in and around the habitats.The presence of larval host plants which help toenhance the habitat of butterflies and other insectsis also reported from the site. Vegetation varies from trees, shrubs, scrub jungles, and some herb plants.. KEYWORDS :Butterfly, Species diversity, Host plants, Gaya
Preliminary studies of grasshopper and locust fauna at some sites of Gaya district, Bihar
Authors: Nayeem Md. Rashid , Kumari Rajani
Published: December 2024

Grasshoppers and locusts, both belonging to the order Orthoptera, Suborder Caelifera, are significant insects in ecological and agricultural contexts. Despite their similarities, these insects exhibit notable differences in behavior, physiology, and ecological impact. Although, the impact of these not so noticed insects may not be so evident yet they comprise some most notorious and damaging taxa of insects that have been long documented as crop and garden pest causing extensive damage creating famine in olden days. Even today swarming episodes of these insects are often reported. The solitary state i.e. grasshoppers are also responsible to decrease net productivity up to a great extent. The Gaya district in Bihar, India, is characterized by a diverse range of habitats, including agricultural lands, grasslands, and forested areas. These have been reported as insects of ecological and economic importance and so understanding them is necessary. This paper investigates the occurrence of grasshopper and locust fauna at some sites of Gaya district, Bihar, India. The findings highlight the rich diversity of Orthopteran species in Gaya and underscore the need for sustainable management practices to mitigate the adverse effects. . KEYWORDS :Locust, Grasshoppers, Distribution, Gaya, Bihar
Watershed development - present status and fisheries perspectives in Indian context
Authors: Meena D. K. , B.K.Das B.K.Das , Behera M. S. , Kumar S. , Dutta S.
Published: December 2024

India encompasses a rich aquatic biodiversity, hosting vast arrays of freshwater, brackish water, and marine ecosystems. These unique landscapes harbor abundant fisheries resources, constituting primary protein sources and income channels for millions. Fisheries are an essential source of food security, livelihoods, employment generation, recreation, trade, and foreign exchange earnings worldwide. However, over exploitation, pollution, habitat destruction, climate change, invasive species, and other anthropogenic activities threaten fisheries resources' sustainability. Therefore, integrated approaches like watershed management can help restore and maintain aquatic ecosystem health, ensuring sustainable fish production while enhancing social welfare. This article explores the significance of watershed development in conserving fisheries resources and promoting their long-term viability.Watershed development plays a pivotal role in nurturing sustainable aquatic ecosystems and enhancing fisheries production in India. Amid intensified exploitative pressures coupled with changing climatic scenarios, watershed development emerges as an integral intervention toward sustainable fisheries conservation and management.Despite considerable progress made, certain constraints persist, necessitating targeted strategies for optimal outcomes. This article evaluates the current scenario, future possibilities, and viewpoints concerning watershed development vis-a-vis fisheries in India.. KEYWORDS :Watershed Development, Fisheries, India, Status, Prospects, Perspective
Dietary factors and aflatoxin b1 carcinogenecity in fish.
Authors: Sinha Rakesh Kumar , Verma Shishir K.
Published: December 2024

Impact of dietary intakes on internal physiology of the living system either progressive or retrogressive, hardly need any explanation . It may thus be assumed that a fish population being reared on a diet with specific biochemical profile is bound to express specific response if at all, mycobial Contaminants like aflatoxins are present in the diet. The fact may be put another way that the toxicological/ carcinogenic manifestations of aflatoxins may be induced or suppressed under the influence of dietary intakes. In this backdrop, the present study was conducted on Channapunctatus, an air-breathing teleost, to evaluated the impact of fatty acids present in cotton seed cake. Three groups of experimental fish were subjected to three different concentration of aflatoxin B1 (15,30 and 45 ppm) reared separately under standard feed formulation added with cotton seed oil cake.Observation were made on day 30, 60 and 90. The findings revealed that the cyclopropenoid fatty acids (CPFA), one of the natural constituent present in triglyceride fraction of the fat of cotton plant synergistically act with aflatoxin B1 enhancing the carcinogenic influence of the toxin.. KEYWORDS :Aflatoxin B1, Dietary factor, Cyclopropenoid fatty acid, Channapunctatus)
Assessment of air pollution tolerance index (apti) in road side trees of nh-131
Authors: kumari Swikriti , Kumar Dr. Arun
Published: December 2024

Vehicles are the major source of air pollution. Plants are able to absorb pollutants from air. Road side plants help in reducing quantity of pollutants emitted by vehicles. This property of plants is measured in terms of Air pollution tolerant index (APTI). In the present study, APTI of 10 plants from road side of NH-131 was calculated. pH, Relative water content (RWC), chlorophyll and Ascorbic acid from leaves of each tree was estimated and compared with control. Trees one km away from road side were considered as control. It was observed that pH and chlorophyll in road side trees decreased while RWC and Ascorbic acid increased in comparison to control. Value of APTI was highest in Delonixragia (11.4134) followed by Cassia fistula (11.1507) and minimum in Mangiferaindica (8.3922).. KEYWORDS :Air pollution, Vehicles, pH, RWC, APTI, Ascorbic acid
Dietary intake of soya flour synergistically influences carcinogenic action in fish, Channa punctatus.
Authors: Sinha Rakesh Kumar
Published: December 2024

Influence of dietary intake on Physiological and biochemical status of the living being is an established fact. Similarly, certain Micronutrients associated with the biochemical component of parent products and their byproducts are often deleterious to the Consumers. A classical example is Cyclopropenoid fatty acids (CPFA), a natural constituent present in triglyceride fraction of the fat of cotton plants. It acts Synergistically with aflatoxin B1, if at all present in the diet due to infestation of some toxic fungi A. flavus and A.parasiticus. Studies on Channa punctatus, an air breathing teleost administered with three concentrations of pure crystalline aflatoxin B1( 15, 30 and 45 ppm) intraperitonially and reared on standard diet formulation (SDF) added with Soya flour (SF) Supplements. In contrast, the pathological lesions in the group reared on Soya flour supplement was almost comparable to the control group receiving similar concentration of aflatoxinB1 and reared on SDF. The Soya flour is usually used as dietary supplement for pets and livestock in order to meat protein requirements from the left out amount of the oil following extraction. In particular, the findings gain significance on account of the fact that the Soya flour (SF) is one of the major ingredientsof aqua culture feed formulation all through the country.. KEYWORDS :Dietary factors , Aflatoxin B1, Synergistic Action, Carcinogenicity.
Study of alteration of reproductive cycle and hematological parameters of pcosinduced mus musculus
Authors: Kumari Shivani , Singh Bhupendra Prasad
Published: December 2024

Polycystic Ovary Syndrome (PCOS) is a prevalent endocrine disorder affecting reproductive and metabolic health in females. This study investigates the effects of PCOS induction on the reproductivecycle and haematological parameters in Mus musculus (laboratory mice). PCOS was induced using both androgen (dihydrotestosterone) and letrozole (an aromatase inhibitor), two widely accepted methods for modelling the disorder. Vaginal cytology was performed to monitor the estrus cycle, while blood samples were analyzed for haematological alterations. Results indicated a significant disruption of the estrus cycle in PCOS-induced mice, characterized by prolonged diestrus and anovulation, mirroring reproductive dysfunctions observed in human PCOS. Hematologically, PCOS mice exhibited leukocytosis, elevated neutrophil counts, and alterations in red blood cell (RBC) parameters, suggesting a state of chronic inflammation and metabolic stress. These findings underscore the systemic nature of PCOS, affecting both reproductive and haematological functions, and reinforce the value of mice models in studying the complex interplay between reproductive endocrinology and systemic metabolic disturbances. The study enhances our understanding of the pathophysiological changes in PCOS and provides a foundation for future investigations into potential therapeutic interventions targeting both the reproductive and metabolic aspects of the disorder.. KEYWORDS :PCOS, Mice, Estrus, Hematological, Weight, RBC, WBC
The role of the (e-)bike: a mode choice model for short distances
Authors: Huurman Chantal , Pel Adam , Daamen Winnie , Maat Kees
Published: December 2024

The bicycle is a very important mode for travel in various countries, particularly in the Netherlands. However, it is in practice often modelled with less detail than other urban modes, such as the car and public transport. Moreover, the increasing use of e-bikes and the differences with conventional bikes show that more research into this transport mode is needed. E-bikes require less physical effort and allow higher speeds, making the e-bike suitable for longer distances. The goals of this research are to (1) create a mode choice model that predicts an accurate modal split for urban areas in the Netherlands and this model is used to (2) find significant factors that influence the modal split, in order to support municipalities of Dutch urban areas to stimulate the use of the (e-)bike. Within both goals, potential differences between conventional bikes and e-bikes are considered. A conceptual model, following from the literature, describes the assumed modal choice including factors relevant to cycling. Data was used mainly from the Dutch National Travel Survey (ODiN). Discrete choice models, a multinomial logit and a nested logit, are estimated to identify significant influencing factors. Results show that a nested logit model is the most explanatory one compared to the other models, with a rho-square-bar of 0.469. The model includes 15 main variables, 3 quadratic components and 4 interaction effects. The nested structure is formed by a correlation between the bike and the e-bike. The factors that show to be generally highly influential for the bike and the e-bike are the travel distance, owning a driver’s license and street density. The model is practically applicable for municipalities to form expectations in the modal shift for changes in their networks or policies. However, modelling these changes has not been validated and thus needs further research.
Investigation of the Wave Field around a Monopile due to Long Crested Irregular Waves in Moderate Steepness
Authors: Herdayanditya Ivandito , Streicher Maximilian , Lataire Evert , Rauwoens Pieter
Published: December 2024

Monopile foundations are the most built foundations in the offshore wind industry. The diameter is also expected to increase in the near future to accomodate for larger wind turbines in deeper water depths. The large monopile diameter imposes additional challenge in planning the marine operations near the monopile, as the monopile can no longer be treated as a transparent monopile (i.e. the monopile gives negligible impact on the incident waves). Proper wave field estimation around the monopile that also accounts for the monopile existence is needed to assure the safety of the operations. Investigation of the wave field around a monopile due to long crested irregular incident waves is provided in the present study. Experimental study was performed with different irregular wave properties, varying the wave steepness and wave diffraction number. The present study explores further the available experimental studies that focus mostly on the runup of the monopile. Initially, Linear Transfer Function (LTF) of the wave field around a monopile from the experimental study is compared to the linear theory, which is found to match well in the high energy frequency range. The LTF differs with the linear theory in the low and high frequency ranges, indicating pronounced nonlinear effect in those frequency ranges. Further, time series analyis is also performed via exceedance probability analysis and significant value computation. It is found that the nonlinearity appears in the crest properties of the wave field around a monopile, while the wave height properties can still be predicted well with the linear theory. Moreover, Wave Type II, wave that travels in the clockwise/anti-clockwise direction around a monopile and not in radial direction, is seen to influence the crest properties.
Near Real-time Flood Risk Modelling in Response to Increasing Uncertainties in Flood Predictions
Authors: Agerbeek Bas , Knepflé Maxim , Witsenburg Florian , Jonkman Sebastiaan N.
Published: December 2024

In the face of increasing uncertainties and the expected rise in flood events worldwide, this technical note presents an innovative approach for enhancing rapid response capabilities, exemplified during the Kakhovka Dam breach in Ukraine. Utilizing the Tygron Model, our methodology combines open-source data with high performance computing for swift hydrodynamic simulations—a departure from traditional flood risk management techniques. Central to this approach is the strategic use of social media to gather crowd-sourced feedback during the emergency, enhancing the precision and relevance of flood risk information.
During the Kakhovka Dam event, our model processed extensive datasets, enabling effective predictions of flood impacts, including extents, velocities, depths, and arrival times. The near real-time modeling capability allowed for dynamic updates using social media inputs, which were of value for emergency responders to optimize response strategies for relief coordination.
While the underlying technology is used for flood simulations, its application in emergency response is novel and promising for more adequate disaster response coordination. However, further research and applications are necessary to refine the approach that can ensure real-time flood risk information during a emergency situations.
UHPLC-DAD-MS3 FINGERPRINTING ANALYSES AND CARCINOGENESIS PREVENTIVE POTENTIALS OF Cyperus bulbosus VAHL. (CYPERACEAE) BULB EXTRACTS ON RHABDOMYOSARCOMA AND BREAST CANCER CELL LINES
Authors: OJOGBANE ONOJA JOEL
Published: December 2024

Despite tremendous progress in cancer treatment, cancer remains a worldwide health burden with a rapidly increasing incidence and death rate. Although conventional cancer medications have demonstrated notable therapeutic success, patients are nonetheless subjected to unfavourable side effects. Compounds produced by nature are being investigated in the quest for substitute anti-cancer medications. Nature continues to be the primary source of bioactive molecules, notwithstanding recent developments in chemically synthesized pharmacologically -active compounds s. This work aims to evaluate the UHPLC-DAD-MS3 fingerprinting analyses and antiproliferative activity of Cyperus bulbosus Vahl. (Cyperaceae) on rhabdomyosarcoma and breast cancer cell lines. The dry bulb of Cyperus bulbosus was successively extracted using n-hexane, ethyl acetate, and methanol for 72 h, respectively. The cytotoxicity assay of the plant extracts against human cancer cells was assessed using MTT (3-(4,5-dimethyl thiazole-2yl)-2,5-diphenyl tetrazolium bromide) assay. Cytotoxicity concentration (CC50) and selectivity index were evaluated. Methanol extract showed the highest cytotoxicity effect on RD (Rhabdomyosarcoma) cell line (CC50 =7.83±0.06 μg/mL). Ethyl acetate (ECB) extract showed the highest cytotoxicity effect (CC50 =7.74±0.01 μg/mL) on MCF-7 (breast cancer cells) at 1000 µg/mL when compared to Vincristine (CC50 =0.340.17 μg/mL) at 100 μg/mL. The ethyl acetate extract has the highest nitric oxide inhibitory activity (IC50=53.85±0.08 µg/mL) at 800 µg/mL when compared to ascorbic acid (IC50=83.39 0.14 μg/mL) at 100 µg/mL. UHPLC-DAD-MS3 analyses for ethyl acetate revealed the presence of 33 compounds. Some molecular ion peak (+MS) of compounds identified are represented (+MS 401.15, RT 80.2 mins, Area% 100), (+MS 425.20, RT 106.9 mins, Area% 61.99), (+MS 282.10, RT 105.1 mins, Area% 51.88), (+MS 403.15, RT 95.9 mins, Area % 45.35), (+MS 433.29, RT 92.5 mins, Area% 26.29). Components in extracts of Cyperus bulbosus have antiproliferative activity on rhabdomyosarcoma and breast cancer cell lines.
OPTIMIZATION OF THE ANTI-INFLAMMATORY ACTIVITY OF CURCUMIN IN COMBINATION WITH EXTRACTS OF PIPER CAPENSE AND SOME AFRAMOMUM SPECIES
Authors: MUTUNDA MBADIKO CLÉMENT , KOTO-TE-NYIWA NGBOLUA JEAN-PAUL
Published: December 2024

Apart from its broad pharmacological potential, curcumin has low bioavailability, which affects its efficient activity in the body. To improve its bioavailability or optimize its pharmacological properties, its combination with extracts of certain plants is considered to be one of the avenues to be explored. The present study aimed to boost the anti-inflammatory potential of curcumin by combining it with extracts of Piper capens and Aframomum species namely Aframomum melegueta, Aframomum angustifolium and Aframomum alboviolaceum). To achieve this, an anti-inflammatory screening was carried out using the rat paw oedema inhibition test. This screening involved aqueous and hydro-ethanolic plant extracts alone and then in combination with natural curcumin. The phytochemical screening was performed following standard protocols. The findings of the anti-inflammatory screening showed that the aqueous extracts of A. alboviolaceum and the hydro-ethanolic extracts of A. melegueta seeds had interesting anti-inflammatory activity (p-value = 0.0000 and p-value = i0.0085 respectively). As for the formulated recipes, the findings revealed that recipes based on curcumin with the aqueous extracts of P. capens, or with the hydro-ethanolic extracts of A. angustifolium leaves and A. melegueta seeds had an optimized anti-inflammatory activity compared with curcumin. Phytochemical analyses revealed the presence of flavonoids, anthocyanins, tannins, quinones, terpenoids, alkaloids, phenolic acids and coumarins. The hydro-ethanolic extracts of A. melegueta seeds and A. angustifolium leaves had high levels of total polyphenols. In conclusion, the extracts of P. capense, A. angustifolium and A. melegueta, can be used as adjuvants to boost the anti-inflammatory potential of curcumin.
Estudio antracológico en la estepa fueguina: Primeros resultados de la localidad Laguna Amalia
Authors: Franch Bach Anna , Oría Jimena
Published: December 2024

El objetivo de este trabajo es presentar el análisis antracológico procedente de la localidad Laguna Amalia y discutir la utilización de recursos leñosos en relación con los resultados obtenidos en otros sitios de la estepa de Tierra del Fuego durante el Holoceno. El análisis incluyó la identificación taxonómica, la evaluación de alteraciones en la estructura de los carbones y la estimación del calibre original de los leños utilizados. Las muestras examinadas evidencian un énfasis en el uso combustible de taxones arbustivos; Berberis sp. y Chiliotrichum diffusum son en este sentido los más abundantes. Se registra una preponderancia de madera colectada en buen estado y de carbones de pequeño calibre. Los resultados contribuyen a la discusión sobre el empleo del combustible vegetal en los sitios de estepa durante el Holoceno.
ARK CAICYT: https://id.caicyt.gov.ar/ark:/s2362325x/qk2jlwbap
تأثير نمط الاستراتيجية في أداء منظمات الأعمال اليمنية
Authors: الديلمي عبدالكريم احمد حسين , المرهضي سنان غالب
Published: December 2024

هدفت الدراسة إلى معرفة مستوى تأثير نمط الاستراتيجية في أداء منظمات الأعمال اليمنية، وتحديد الفروق في مستوى أداء هذه المنظمات طبقًا للمتغيرات (نمط الاستراتيجية، عمر المنظمة، مجال النشاط)، واستخدمت الدراسة المنهج الوصفي من خلال أداة الاستبانة في جمع البيانات من عينة حجمها (305) مفردات من قيادات (43) منظمة أعمال صناعية وخدمية، وحللت البيانات باستخدام برامج التحليل الإحصائي (SPSS. 26) و(Smart PLS 4)، وأظهرت النتائج أن الاستراتيجية المنقبة هي الاستراتيجية الأكثر اتباعًا من قبل منظمات الأعمال اليمنية (الصناعية والخدمية)، وأن مستوى أداء منظمات الأعمال التي شملتها الدراسة قد تحسن بمقدار محدود، خلال السنوات الثلاث الماضية، وأن هناك تأثيرًا إيجابيًا معنويًا للاستراتيجية المنقبة والتحليلية في أداء المنظمة، وأن تأثير الاستراتيجية المدافعة لم يكن معنويًا، وأن منظمات الأعمال المنقبة والمدافعة والتحليلية، تحقق مستوى أداء متقارب، سواءً كانت تعمل في القطاع الصناعي أم الخدمي، ولم يختلف أداء تلك المنظمات طبقًا لعمرها، وقدمت الدراسة عددًا من التوصيات، أهمها: ضرورة تعزيز القدرات الداخلية لمنظمات الأعمال لتتمكن من اقتناص الفرص الموجودة في السوق، والسعي تدريجيًا لتحقيق التوازن بين المرونة والكفاءة، للتمكن من الاستجابة السريعة للتغييرات البيئية المحيطة، والتكيف معها، وإجراء تقييمات دورية للأداء العام لتحديد نقاط القوة وتعزيزها ونقاط الضعف ومعالجتها.
حجاجية الصورة البيانية في المناظرات الخيالية في الأدب العربي من القرن الثامن إلى القرن الثاني عشر الهجري- نماذج مختارة
Authors: الهمداني سام يحيى ناصر , أنعم منير عبده علي
Published: December 2024

يهدف هذا البحث إلى الكشف عن حجاجية الصورة البيانية في المناظرات الخيالية في الأدب العربي من القرن الثامن إلى القرن الثاني عشر الهجري؛ نظرًا لما فيها من قيمة أدبية وحجاجية، ولما لهذه التقنية البلاغية الحجاجية من قدرة على تقديم المعنى المجرد تقديمًا حسيًا مرئيًا، وإكساب خطاب المناظرات الخيالية درجة عالية من التأثير والإقناع، مقتصرًا على ست مناظرات خيالية أنموذجًا لمقاربته، شملت القرن الثامن، والتاسع، والحادي عشر، والثاني عشر بحسب ما استدعته مباحث الدراسة، معتمدًا على المنهج الوصفي، وإجراءات النظرية التداولية والحجاجية، في تحليل النصوص المختارة، وسيكون البحث موزعًا على ثلاثة مباحث تسبقها مقدمة ومتبوعة بخاتمة، وقبلها تمهيد سنتناول فيه مفهومي الصورة الحجاجية، والمناظرات الخيالية، وسيتضمن المبحث الأول حجاجية التشبيه، والثاني حجاجية الاستعارة، والثالث حجاجية الكناية، ويختتم البحث بأبرز النتائج التي توصلت إليها الدراسة.
وقد توصل البحث إلى أن الصورة البيانية بآلياتها الثلاث (التشبيه، والاستعارة، والكناية) أسهمت إسهامًا كبيرًا في بيان جمال خطاب المناظرات الخيالية، وأدَّت دورًا إقناعيًا استدلاليًا، وأدَّت وظائف حجاجية عدة منها: التوضيح، والتقريب، والتقييم، والتفسير، والنفي، والإثبات.
الآثار النفسية والاجتماعية الناتجة عن عدم استخدام شبكات التواصل الاجتماعي دراسة مسحية خلال فترة انقطاع شبكة الانترنت
Authors: عبرين عمر , حــــــــداد ســـــــماح
Published: December 2024

هدف هذا البحث إلى قياس الآثار النفسية والاجتماعية الناتجة عن عدم استخدام شبكات التواصل الاجتماعي، خلال فترات انقطاع شبكة الإنترنت، وذلك باستخدام منهج مسح الجمهور وأداة الاستبانة على عينة بلغت (216) مفردة من مستخدمي شبكات التواصل الاجتماعي، وتوصل إلى نتائج عدة أهمها:

كانت درجة حدوث الآثار النفسية (الإيجابية) الناتجة عن عدم استخدام المبحوثين لشبكات التواصل الاجتماعي خلال فترة انقطاع شبكة الإنترنت (متوسطة)، وأن درجة حدوث الآثار النفسية (السلبية) كانت (بدرجة منخفضة)، وأن درجة حدوث كل من الآثار الاجتماعية (الإيجابية والسلبية) كانت (بدرجة منخفضة).
وجود اختلاف في درجة حدوث الآثار النفسية (الإيجابية) الناتجة عن عدم استخدام المبحوثين لشبكات التواصل الاجتماعي خلال فترة انقطاع الإنترنت، نتيجة اختلاف درجة استخدامهم لتلك الشبكات: الفئة العمرية للمبحوثين، المستوى التعليمي للمبحوثين، مستوى الدخل الشهري للمبحوثين.
وجود اختلاف في درجة حدوث الآثار النفسية (السلبية) الناتجة عن عدم استخدام المبحوثين لشبكات التواصل الاجتماعي خلال فترة انقطاع الإنترنت، نتيجة اختلاف (معدل ، درجة، كثافة) استخدامهم لتلك الشبكات، ونوع المبحوثين، ومستواهم التعليمي، ومستوى دخلهم الشهري.
وجود اختلاف في درجة حدوث الآثار الاجتماعية (الإيجابية) الناتجة عن عدم استخدام المبحوثين لشبكات التواصل الاجتماعي خلال فترة انقطاع الإنترنت، نتيجة اختلاف درجة استخدامهم لتلك الشبكات ومستوى الدخل الشهري للمبحوثين.
وجود اختلاف في درجة حدوث الآثار الاجتماعية (السلبية) الناتجة عن عدم استخدام المبحوثين لشبكات التواصل الاجتماعي خلال فترة انقطاع الإنترنت، نتيجة اختلاف درجة استخدامهم لتلك الشبكات، والفئة العمرية للمبحوثين، ومستوى دخلهم الشهري.
Dispute over Customary Land of the Bodi Sapik Clan, Certified Without the Permission of the Mamak Kapalo Waris and Its Settlement in Jorong Baruah, Tanah Datar
Authors: Murniwati Rahmi , Utama Nanda , Wahyudi Reza
Published: December 2024

Land disputes arise from conflicts of interest over land. Communal customary land is one type of land that is often disputed. One such dispute over communal customary land belonging to the Bodi Sapik clan occurred in Jorong Baruah, Nagari Padang Magek, Tanah Datar Regency. In this case, the communal customary land was certified without the permission of the head heir. West Sumatra Regional Regulation No. 7 of 2023 on Communal Customary Land states that the head heir is the leader of the communal customary land. Furthermore, Article 13 stipulates that the management and utilization of communal customary land is carried out by the head heir based on consensus with the clan members. Therefore, a study is needed with the following research questions: 1) Why did the defendant not seek prior permission from the head heir before certifying the Bodi Sapik clan's communal customary land? 2) How was the certification process of the Bodi Sapik clan's communal customary land carried out without the permission of the head heir in Jorong Baruah, Nagari Padang Magek, Tanah Datar Regency? 3) How was the dispute over the certification of the Bodi Sapik clan's communal customary land, which was carried out without the permission of the head heir in Jorong Baruah, Nagari Padang Magek, Tanah Datar Regency, resolved? This research uses an empirical juridical method with qualitative analysis. Based on the analysis and discussion, the results of this study show that the reason the defendant did not seek permission from the head heir when certifying the Bodi Sapik clan's communal customary land was because it was not the defendant who registered or certified the communal customary land, but rather the defendant's older brother, Jhond Kennedy, and because the defendant had not yet received his share of the inheritance and was trying to protect the inherited property. Meanwhile, the certification process of the Bodi Sapik clan's communal customary land in Jorong Baruah, Nagari Padang Magek, was carried out in 2000 when the defendant's older brother was the village head and there was a National Agrarian Operation Project (Prona) which authorized village governments to issue land ownership certificates (sporadik). This sporadik was used as the basis for land registration (issuance of a communal customary land certificate) at the Tanah Datar Regency Land Agency office. Furthermore, the dispute over the Bodi Sapik clan's communal customary land was resolved through negotiation, followed by mediation at the Tanah Datar Police Station, Batusangkar District Court, and finally at the Padang State Administrative Court.
El cuidado institucionalizado a la infancia: cuerpo- presencia y espacios otros
Authors: Soto  Aranda Viviana
Published: December 2024

En el marco de la discusión del cuidado institucionalizado de las infancias, este artículo presenta los resultados de una investigación etnográfica que tuvo como objetivo comprender significados que surgen de las prácticas cotidianas en la infancia y en quienes les cuidan, en la micro cultura del cuidado institucionalizado. Se realiza un trabajo de observación participante y registro documental por un periodo de cuatro meses a dos centros residenciales infantiles con un total de cuatro grupos muestrales. Los resultados develan que el cuidado institucionalizado de la infancia nos posiciona en un campo de reflexión que tensiona los trayectos y coordenadas de los cuerpos dentro de dispositivos de acción institucional. Se presentan carencias y mixturas de potencia en el cuidado, condiciones hibridas, que dan lugar a que se configuren espacios otros en su habitar lo que resulta ser un ejercicio político de la infancia que busca crear y recrear sus sentidos de existencia, como también de quienes cuidan.  La infancia interpela las relaciones que se manifiestan hacia ella, lo que resulta ser un atributo necesario y vital para enfrentar críticamente y superar lo que no hemos visto en la complejidad del cuidado institucionalizado y su necesaria transformación.
Presentación
Authors: Hernández Martínez Landa (Pedro)
Published: December 2024

Internet, concebido como una red descentralizada de comunicación, ha crecido y evolucionado hasta convertirseen una vasta infraestructura global; un entramado compuesto por cables submarinos, antenas, satélites,fibra óptica, usuarios, teléfonos móviles, centros de datos y dispositivos móviles que interconectan el mundomás allá de las fronteras (Bratton, 2015) y de forma ininterrumpida una ingente cantidad de flujos de información.Esta infraestructura ha potenciado avances significativos desde las telecomunicaciones hasta el consumo,sentando las bases de nuestro actual modelo económico: el capitalismo de plataformas. Este se caracteriza porel dominio y hegemonía de plataformas digitales que actúan como intermediarias entre usuarios, consumidores,proveedores, anunciantes e, incluso, objetos físicos (Srni cek, 2018).
AI Agents in Education: An Early Systematic Review of Emerging Roles, Potential, and Limitations
Authors: Istrate Olimpius
Published: December 2024

In a world where ChatGPT writes essays and solves math problems in seconds, an important question emerges: who will shape the character and values of the next generation – cold and precise algorithms or teachers who understand the needs, potential, and sensitivity of human beings?

Recent advances in artificial intelligence, particularly the emergence of sophisticated AI agents like ChatGPT, have sparked intense debate about their role in education. While these technologies promise to transform teaching and learning processes, their rapid evolution and widespread adoption have outpaced our understanding of their implications.

This scoping review addresses a critical gap in current literature by systematically examining the potential, limitations, and challenges of integrating AI agents in educational settings. The review is particularly timely given the accelerated digitalization of education following the global pandemic and the subsequent proliferation of AI tools in classrooms. By synthesizing emerging research and empirical evidence, this study provides educators, policymakers, and researchers with a comprehensive framework for understanding how AI agents can effectively complement, rather than replace, traditional teaching methods.

Our analysis explores key dimensions including: the typology and functionalities of educational AI agents; their impact on student engagement and learning outcomes; their limitations in developing higher-order cognitive skills and social-emotional competencies; and the evolving role of teachers in AI-enhanced learning environments. This systematic examination helps identify research gaps, inform evidence-based implementation strategies, and guide future investigations into the long-term effects of AI integration in education.

The findings underscore the need for a balanced, nuanced approach to incorporating AI agents in educational practice, while highlighting critical areas requiring further research and development. This review contributes to the growing body of knowledge essential for developing effective policies and practices that maximize the benefits of AI in education while preserving the irreplaceable human elements of teaching and learning.