bluuebunny/crossref_metadata_2025 huggingface dataset:
Design and methods of the mobile assessment of cognition, environment, and sleep (MACES) feasibility study in newly diagnosed breast cancer patients
Authors: Derbes Rebecca , Hakun Jonathan , Elbich Daniel , Master Lindsay , Berenbaum Sheri , Huang Xuemei , Buxton Orfeu M. , Chang Anne-Marie , Truica Cristina I. , Sturgeon Kathleen M.
Published: April 2024

Endocrine therapy (ET) for breast cancer treatment is associated with cognitive complaints, but their etiology is poorly understood. To address this, we developed and implemented an ambulatory assessment protocol consisting of wearable activity monitors, brief surveys of affect, context, and perceived impairments, and ultra-brief performance-based measures of cognition. Newly diagnosed, ER/PR+, stage 0-III, female breast cancer patients, were recruited. Ambulatory assessments were conducted on smart phones and wearable activity monitors were used to monitor sleep and physical activity. Participants were asked to complete five 7-day measurement bursts (one before starting ET and one each month for 4 consecutive months while on ET). We observed a consent rate of 36%, 27 women completed the study. Of the women that withdrew, 91% dropped prior to the midpoint of follow up. There were no significant differences in demographics, clinical breast cancer characteristics, sleep or physical activity patterns, or measures of cognition between women who completed versus withdrew. Women who did not complete the study provided fewer valid days of baseline data. In conclusion, while some women may be overwhelmed with their cancer diagnosis, we did not identify any predictive characteristics of women whom did not complete the study. This novel method enables the prospective study of psychological changes associated with cancer treatment, capturing a wide array of information about behavior, experience, and cognition, thus providing a picture of the lived experiences of cancer patients before and during exposure to ET.
Comprehensive insights into the impact of bacterial indole-3-acetic acid on sensory preferences in Drosophila melanogaster
Authors: Aziz Raifa Abdul , Ramesh Poornima , Suchithra Kokkarambath Vannadil , Stothard Paul , Narayana Vanya Kadla , Raghu Shamprasad Varija , Shen Fo-Ting , Young Chiu-Chung , Prasad T. S. Keshava , Hameed Asif
Published: April 2024

Several bacteria of environmental and clinical origins, including some human-associated strains secrete a cross-kingdom signaling molecule indole-3-acetic acid (IAA). IAA is a tryptophan (trp) derivative mainly known for regulating plant growth and development as a hormone. However, the nutritional sources that boost IAA secretion in bacteria and the impact of secreted IAA on non-plant eukaryotic hosts remained less explored. Here, we demonstrate significant trp-dependent IAA production in Pseudomonas juntendi NEEL19 when provided with ethanol as a carbon source in liquid cultures. IAA was further characterized to modulate the odor discrimination, motility and survivability in Drosophila melanogaster. A detailed analysis of IAA-fed fly brain proteome using high-resolution mass spectrometry showed significant (fold change, ± 2; p ≤ 0.05) alteration in the proteins governing neuromuscular features, audio-visual perception and energy metabolism as compared to IAA-unfed controls. Sex-wise variations in differentially regulated proteins were witnessed despite having similar visible changes in chemo perception and psychomotor responses in IAA-fed flies. This study not only revealed ethanol-specific enhancement in trp-dependent IAA production in P. juntendi, but also showed marked behavioral alterations in flies for which variations in an array of proteins governing odor discrimination, psychomotor responses, and energy metabolism are held responsible. Our study provided novel insights into disruptive attributes of bacterial IAA that can potentially influence the eukaryotic gut-brain axis having broad environmental and clinical implications.
Balbiani body of basal insects is potentially involved in multiplication and selective elimination of mitochondria
Authors: Sekula Malgorzata , Tworzydlo Waclaw , Bilinski Szczepan M.
Published: April 2024

Oocytes of both vertebrates and invertebrates often contain an intricate organelle assemblage, termed the Balbiani body (Bb). It has previously been suggested that this assemblage is involved in the delivery of organelles and macromolecules to the germ plasm, formation of oocyte reserve materials, and transfer of mitochondria to the next generation. To gain further insight into the function of the Bb, we performed a series of analyses and experiments, including computer-aided 3-dimensional reconstructions, detection of DNA (mtDNA) synthesis as well as immunolocalization studies. We showed that in orthopteran Meconema meridionale, the Bb comprises a network of mitochondria and perinuclear nuage aggregations. As oogenesis progresses, the network expands filling almost entire ooplasm, then partitions into several smaller entities, termed micro-networks, and ultimately into individual mitochondria. As in somatic cells, this process involves microfilaments and elements of endoplasmic reticulum. We showed also that at least some of the individual mitochondria are surrounded by phagophores and eliminated via mitophagy. These findings support the idea that the Bb is implicated in the multiplication and selective elimination of (defective) mitochondria and therefore may participate in the transfer of undamaged (healthy) mitochondria to the next generation.
Simultaneous rotary and linear displacement sensor based on soft pneumatic sensing chambers
Authors: Ghaffari Alireza , Hojjat Yousef
Published: April 2024

Specific industrial or research applications necessitate specialized displacement measurement conditions, thereby driving researchers to innovate sensors based on novel operating principles. One such challenging condition is the prevalence of strong electromagnetic waves, which precludes using any sensor with a metallic structure or one that operates on electrical measurement principles. Additionally, space constraints in applications requiring multidimensional displacement measurements mandate the development of sensors capable of measuring displacements simultaneously in multiple directions. This paper introduces a novel soft sensor designed to simultaneously measure linear and rotational displacements using Soft Pneumatic Sensing Chambers (SPSCs). This sensor is unique in its ability to measure both linear and rotational movements and, due to its Electro-Magnetic Compatibility (EMC) and compact size, is suitable for environments with significant electromagnetic interference and spatial constraints. Furthermore, its flexibility makes it appropriate for body-interacting applications. The Abaqus software was employed to optimize the operating parameters. Subsequently, a laboratory setup was assembled, and the sensor's performance was assessed using two calibration methods: mathematical modeling and machine learning. According to the machine learning method, the accuracy in the linear and rotational directions was 0.49 mm and 5.4°, while the Root Mean Square Error (RMSE) was 0.05mm and 0.48°, respectively.
Spatiotemporal transcriptomic changes of human ovarian aging and the regulatory role of FOXP1
Authors: Wu Meng , Tang Weicheng , Chen Ying , Xue Liru , Dai Jun , Li Yan , Zhu Xiaoran , Wu Chuqing , Xiong Jiaqiang , Zhang Jinjin , Wu Tong , Zhou Su , Chen Dan , Sun Chaoyang , Yu Jing , Li Hongyi , Guo Yican , Huang Yibao , Zhu Qingqing , Wei Simin , Zhou Ziliang , Wu Mingfu , Li Ya , Xiang Tao , Qiao Huiying , Wang Shixuan
Published: April 2024

Limited understanding exists regarding how aging impacts the cellular and molecular aspects of the human ovary. This study combines single-cell RNA sequencing and spatial transcriptomics to systematically characterize human ovarian aging. Spatiotemporal molecular signatures of the eight types of ovarian cells during aging are observed. An analysis of age-associated changes in gene expression reveals that DNA damage response may be a key biological pathway in oocyte aging. Three granulosa cells subtypes and five theca and stromal cells subtypes, as well as their spatiotemporal transcriptomics changes during aging, are identified. FOXP1 emerges as a regulator of ovarian aging, declining with age and inhibiting CDKN1A transcription. Silencing FOXP1 results in premature ovarian insufficiency in mice. These findings offer a comprehensive understanding of spatiotemporal variability in human ovarian aging, aiding the prioritization of potential diagnostic biomarkers and therapeutic strategies.
Dynamic SARS-CoV-2 surveillance model combining seroprevalence and wastewater concentrations for post-vaccine disease burden estimates
Authors: Holm Rochelle H. , Rempala Grzegorz A. , Choi Boseung , Brick J. Michael , Amraotkar Alok R. , Keith Rachel J. , Rouchka Eric C. , Chariker Julia H. , Palmer Kenneth E. , Smith Ted , Bhatnagar Aruni
Published: April 2024

Background

Despite wide scale assessments, it remains unclear how large-scale severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination affected the wastewater concentration of the virus or the overall disease burden as measured by hospitalization rates.

Methods

We used weekly SARS-CoV-2 wastewater concentration with a stratified random sampling of seroprevalence, and linked vaccination and hospitalization data, from April 2021–August 2021 in Jefferson County, Kentucky (USA). Our susceptible ($$S$$
S
), vaccinated ($$V$$
V
), variant-specific infected ($${I}_{1}$$

I

1

and $${I}_{2}$$

I

2

), recovered ($$R$$
R
), and seropositive ($$T$$
T
) model ($${SV}{I}_{2}{RT}$$
S
V

I

2

R
T
) tracked prevalence longitudinally. This was related to wastewater concentration.

Results

Here we show the 64% county vaccination rate translate into about a 61% decrease in SARS-CoV-2 incidence. The estimated effect of SARS-CoV-2 Delta variant emergence is a 24-fold increase of infection counts, which correspond to an over 9-fold increase in wastewater concentration. Hospitalization burden and wastewater concentration have the strongest correlation (r = 0.95) at 1 week lag.

Conclusions

Our study underscores the importance of continuing environmental surveillance post-vaccine and provides a proof-of-concept for environmental epidemiology monitoring of infectious disease for future pandemic preparedness.
Blocked training facilitates learning of multiple schemas
Authors: Beukers Andre O. , Collin Silvy H. P. , Kempner Ross P. , Franklin Nicholas T. , Gershman Samuel J. , Norman Kenneth A.
Published: April 2024

We all possess a mental library of schemas that specify how different types of events unfold. How are these schemas acquired? A key challenge is that learning a new schema can catastrophically interfere with old knowledge. One solution to this dilemma is to use interleaved training to learn a single representation that accommodates all schemas. However, another class of models posits that catastrophic interference can be avoided by splitting off new representations when large prediction errors occur. A key differentiating prediction is that, according to splitting models, catastrophic interference can be prevented even under blocked training curricula. We conducted a series of semi-naturalistic experiments and simulations with Bayesian and neural network models to compare the predictions made by the “splitting” versus “non-splitting” hypotheses of schema learning. We found better performance in blocked compared to interleaved curricula, and explain these results using a Bayesian model that incorporates representational splitting in response to large prediction errors. In a follow-up experiment, we validated the model prediction that inserting blocked training early in learning leads to better learning performance than inserting blocked training later in learning. Our results suggest that different learning environments (i.e., curricula) play an important role in shaping schema composition.
Different solvents and organic modifiers for the control of crystallographic parameters in nano-crystallite hydroxyapatite for amplification of photocatalytic activity
Authors: Kawsar Md. , Sahadat Hossain Md. , Tabassum Sumaya , Bahadur Newaz Mohammed , Ahmed Samina
Published: April 2024

Certain crystal plane was develop in hydroxyapatite using organic modifiers/solvents to enhance photocatalytic activity.
Open-source Python module to automate GC-MS data analysis developed in the context of bio-oil analyses
Authors: Pecchi Matteo , Goldfarb Jillian L.
Published: April 2024

Open-source Python tool automates GC-MS biofuel analysis, promoting sustainable energy research.
Molecular-polaron-coupling-enhanced photocatalytic CO2 reduction on copper phthalocyanine/NiMgFe layered double hydroxide nanocomposites
Authors: Li Yuexian , Su Wenli , Wang Xiaoyan , Lu Jun , Zhang Wenkai , Wei Shuo
Published: April 2024

We built CuPcS/NiMgFe-LDHs composites and probed the unique photogenerated-carrier transfer mechanism. A series of long-range Forster energy transfers prolonged the lifetime of photogenerated carriers to match the timescale of surface reaction.
Three-dimensional hotspot structures constructed from nanoporous gold with a V-cavity and gold nanoparticles for surface-enhanced Raman scattering
Authors: Xu Yang , Wu Yan , Wei Jianjun , Zhao Yuanyu , Xue Peili
Published: April 2024

A nanoporous gold V-shaped resonant cavity (NPGVRC) structure constructed with plasmonic resonance coupling effect. The NPGVRC has excellent SERS performance and 3D hotspot properties.
Edible ink for food printing and packaging applications: a review
Authors: Hakim Lokman , Deshmukh Ram Kumar , Lee Youn Suk , Gaikwad Kirtiraj K.
Published: April 2024

The food industry has witnessed significant advancements in food printing and packaging.
Assessing the performance of sustainable luminescent solar concentrators based on chemically recycled poly(methyl methacrylate)
Authors: Picchi Alberto , Bettini Irene , Ilarioni Massimo , Carlotti Marco , Pucci Andrea
Published: April 2024

The performances of PMMA luminescent solar concentrators fabricated from virgin and recycled monomers were compared to highlight their similar efficiencies and account for the effect of the purity of the latter on the longevity of the device.
Slot-die coating of electron transport layers for perovskite solar cells using water and butanol-based tin oxide dispersions
Authors: Vijayan Anuja , Vijayakumar Vishnu , Johansson Malin B. , Karimipour Masoud , Lira-Cantu Monica , Kim Byeong Jo , Boschloo Gerrit
Published: April 2024

Slot-die coated tin oxide films are suited as electron transport layers in large-scale perovskite solar cells.
Surface proton hopping conduction mechanism dominant polymer electrolytes created by self-assembly of bicontinuous cubic liquid crystals
Authors: Ichikawa Takahiro , Yamada Takeshi , Aoki Nanami , Maehara Yuki , Suda Kaori , Kobayashi Tsubasa
Published: April 2024

Ultrafast surface proton hopping conduction was achieved in a gyroid nanostructured polymer films having a 3D continuous interface where sulfonate groups are aligned densely and periodically.
Bird Community Structure in Sumberdjati Resort, Sempolan, Perhutani, Jember Forest Management Unit
Authors: Rohman Abdu , Risma Kurniawati Ade , Subchan Wachju , Chandra Buana Yunanta
Published: April 2024

The Sumberjati Resort Area, Perhutani Forest Management Unit (KPH) Jember, is a production area and protected forest. Habitat decline, overexploitation, and hunting of bird species result in their classification as endangered. This research aimed to ascertain the Bird Community Structure within the Sumberjati Resort, located in the Sempolan area of the Perhutani Forest Management Unit (KPH) in Jember. The study period encompassed the months of December 2022 to January 2023. The research uses the point count method at twelve observation points. The data recording process encompassed the collection of morphological data and bird population counts. A total of 34 distinct species, comprising a population of 1,292 individuals, were documented. Collocalia linchi exhibited the highest population density among avian species in every surveyed area. Spilornis cheela and Microhierax fringillarius have a conservation status of least concern according to the IUCN Red List and are protected bird species under the National Regulation. Shannon-Wiener index analysis shows that bird diversity is in the medium category (pine forest 1.32 ≤ jungle 1.33). The dominance index shows the medium category (pine forest 0.51 ≤ jungle 0.52). Evenness_e H/S is low (pine forest 0.16 > jungle 0.14). The highest relative abundance was Collocalia linchi (0.7063).
Biodiversity of Ichthyofauna In Mainland Waters of Muara Bulian District Jambi Province and Its New Record
Authors: Apriliawati  , Sukomono Tedjo , Nugraha Anggit
Published: April 2024

Sumatra Island has 589 species of freshwater fish with 58 of them being endemic. Jambi Province ranks second as the highest endemic province and has the longest river in Sumatra passing through six districts, one of which is Batanghari Regency. Muara Bulian District is the only sub-district in Batanghari Regency whose entire village is traversed by the Batanghari River. This research aims to reveal the biodiversity of ichthyofauna in the mainland water of Muara Bulian. The four research stations represent different habitats, namely Batanghari River, Bulian River, Letang’s Lake, and Teratai’s Swamp. Sampling was carried out using various fishing gear and bait, to obtain different samples. The results of this study showed the diversity of fish from 523 individuals, there were 51 species, 32 genera, 18 families, 8 orders included 2 species (C. kapuasensis and C. pseudoleiacanthus) as New Record in Jambi Province, included 1 species protected by government, and the other is introduction or native species. Research data in the form of fish specimens have been deposited at the Zoologicum Bogoriens Museum (MZB) belonging to the Bogor National Research and Innovation Agency (BRIN) with numbers MZB 26811 to MZB 26834.
Evaluating corn for resistance to the main fungal pathogens and the Asian corn borer
Authors: Telichko Olga , Lastushkina Elena , Syrmolot Oksana , Belova Tatiana , Samagina Yuliya , Bogdan Polina
Published: April 2024

The paper presents the results of a study on 36 corn genotypes of Russian and foreign breeding origin under the conditions of the south of the Russian Far East. The research goal was to select corn varieties (hybrids) with the highest resistance to fungal pathogens and Ostrinia furnacalis Guenee for further use as breeding material. Diseases and pests cause significant damage to corn under the conditions of Primorsky kray. The research identified the following specimens that had the highest tolerance (the frequency of occurrence did not exceed 45%; the degree of disease progression was below 10%) to northern corn leaf blight (Helminthosporium turcicum Pass) and Fusarium ear rot (Fusarium moniliforme Scheldon): Krasnodarsky 291, LONG KEN 134, LONG KEN 1108, LONG KEN 1110, and KENDGY 717. Ostrinia furnacalis Guenee caused little damage (the degree of damage was 0.2-0.5) to Mashuk 175, Mashuk 250, Mashuk 300, N’yuton, KENDGY 717, DEMEYA 4, KENDGY 515, KENDGY 510, and LONG KEN 1110. High yield (7.2-8.8 t/ha) characterized Mashuk 250, N’yuton, Stella, KENDGY 717, KENDGY 510, DEMEYA 4, KENDGY 515, LONG KEN 134, and LONG KEN 1110.
Water consumption of spring and winter wheat on chernozem soils of the Volgograd region
Authors: Belyaev A.I. , Petrov N.Yu. , Aksenov M.P. , Petrov Yu.N. , Zvereva G.N.
Published: April 2024

Scientific and practical research was carried out with the aim of establishing new approaches to the cultivation of durum varieties of spring wheat and winter wheat, the main task when starting the experiments was to obtain a wheat yield at the existing level, while offering alternatives to the classic mineral nutrition, which allows not only to obtain the planned harvest wheat but preserve the natural fertility of the soil. No less important is the fact that the experiment was carried out in a risky farming area. In this regard, it is necessary to know how the water consumption of winter and spring durum wheat develops. We used pre-sowing treatment of seed material with modern biofertilizers. But the root mass of durum wheat has a distinctive feature from the root mass of soft wheat. The root mass of durum wheat contains mycorrhiza, which interacts better with soil microflora. Together with biofertilizers, a more favorable water regime is created, which has a positive effect on yields. Along with zoned varieties, modern wheat varieties with higher plasticity and adaptability to arid conditions were studied. The experiment was carried out in 2020…2023. in the Volgograd region, on the peasant farm “Eliseev A.N” in the Mikhailovsky district, located in the southern black soil zone. The objects of testing in the experiment were varieties of durum spring wheat: Donskaya Elegiya, Krasnokutka 13 and winter durum wheat: Agat Donskoy and Aksinit with pre-sowing treatment with biofertilizers. The experiment showed that the lowest water consumption indicators were in the variants without seed treatment and they varied between varieties from 259.5 mm (Krasnokutka 13 variety) to 521.0 mm (Aksinit variety). The maximum values were observed in the variant with seed treatment with biofertilizer Gumi 20 and they amounted to 263.2 mm for the Krasnokutka 13 variety, and 265.7 mm for the Aksinit variety, respectively.
Technology of Cultivation of Medicinal Preparation “Hуperiсum Perfоratum I”
Authors: Begmatova Malohat , Fayzullaev Umidjon , Urolova Sarvinoz , Makhmadiyarova Yulduz , Sunnatillaeva Sevinch
Published: April 2024

In the article, the medicinal properties, botanical description of the promising medicinal plant Hypericum perforatum species are studied, and the morpho-biological characteristics of the Hypericum perforatum species in the gray soils of Samarkand region are based on the comparative aspect. Depending on the planting conditions and periods of Hypericum perforatum, the seed yield, phytomass yield was determined, and recommendations for the cultivation of quality seeds and raw materials were developed.
Etiology and pathogenesis of non-infectious hepatopathy in cattle under industrial production conditions
Authors: Ponamarev Vladimir , Popova Olga , Kostrova Anastasia , Agafonova Ludmila
Published: April 2024

The study of disease etiology plays a critical role in modern veterinary medicine and is of great importance for animal health. Liver pathologies in cattle are of great importance in agriculture. Liver pathologies can have different causes, including infectious diseases, parasitic infestations, and the consequences of poisoning or improper feeding. The search and processing of scientific publications were carried out according to H. Snyder’s recommendations for writing review articles. Only a deep understanding of the causes, mechanisms, and risk factors can lead to the development of effective methods for the prevention, diagnosis, and treatment of liver pathologies, which helps improve the productive abilities of cattle.
The role of visual diagnostics in establishing the stages of development of mitral valve insufficiency in dogs
Authors: Kostylev Vladislav , Goncharova Anna , Shtaufen Alexandra
Published: April 2024

The aim of the work is to develop a scientifically based approach the established role of visual diagnostics in determining the stages of development of mitral valve insufficiency in dogs. The study was conducted on the basis of the Moscow state Academy of Veterinary Medicine and Biotechnology named after K. I. Scriabin. The object of research - 162 dogs with myxomatous degeneration of atriovetricular valves. Myxomatous degeneration of the valvular heart apparatus was more common in dogs aged 7 to 10 years. Most often diagnosed in dogs of Chihuahua breeds, Yorkshire Terriers. Of the total number of animals, the disease was more common in males. Clinical signs of myxomatous degeneration of the valvular heart apparatus in dogs are diverse. Objective diagnostic clinical signs of myxomatous degeneration of the mitral valve of the heart in dogs were: cough, sudden lethargy, shortness of breath, less frequent weight loss, loss of consciousness and ascites. The main clinical signs of tricuspid valve damage were: cough and ascites. Shortness of breath and loss of consciousness were less common. With a combined lesion of the mitral and tricuspid valves, the clinical picture was more pronounced.
Impact of incorporating inorganic additives in processed meat production
Authors: Dissanayake Kasun , Rifky Mohamed , Farmonov Jasur , Boynazarova Yulduz , Meyliyev Akhror , Zokirov Kurbonalijon , Narziyev Farrux , Samadiy Murodjon
Published: April 2024

This study explores the complex effects of inorganic chemicals on the quality of meat and the health of consumers at different stages of processing. It is determined that nitrites, phosphates, potassium sorbate, sodium chloride, antioxidants, and monosodium glutamate (MSG) contribute to improving meat products’ sensory qualities, shelf life, and oxidative stability. On the other hand, health problems related to their consumption, including metabolic disorders and carcinogenicity, are a cause for concern. The clean-label effort has impacted consumer opinions, which in turn have created demand for natural and additive-free meat. As inorganic compounds are essential to the processing of meat, initiatives are being made to develop solutions that will satisfy customer preferences. The study underlines the need for more research into the complex relationships between chemicals and meat quality, enabling the manufacture of meat products that are healthy, secure, and attractive in accordance with changing customer preferences and health considerations.
Territorial composition of agriculture in the Aral Sea Region of Uzbekistan
Authors: Eshimbetov Uktamjon , Oteuliev Medetbay , Baltabaev Omirbay , Khudaybergenov Yakhshimurad , Uzakbaev Koblan
Published: April 2024

In this article, the territorial composition of the agriculture of the Aral Sea region of Uzbekistan, that is, the Republic of Karakalpakstan is analyzed. Scientific works of scientists from the CIS, Uzbekistan and Karakalpakstan on agricultural specialization were studied. The territorial structure of agriculture was first divided into three zones and analyzed. It is also studied within administrative-territorial units. The main goal of this research work is to analyze the territorial composition of agriculture in the Republic of Karakalpakstan.
Increasing the efficiency of land use as a condition оf ensuring sustainable development of rural areas
Authors: Artemova Elena , Barsukova Galina , Derevenets Diana
Published: April 2024

The study includes the development and justification of specific measures aimed at increasing the efficiency of land use to ensure sustainable development of rural areas. It contains justification for research methodology, analysis of methodological and scientific information, assessment of the environmental and economic efficiency of using land resources using the example of the Krasnodar Territory. The interpretation of the concept of sustainability of rural territories is given, a causal relationship between increasing the efficiency of land use and ensuring the sustainability of rural territories, including economic, social and environmental components, is established. To increase the efficiency of land use, the methodology for identifying unused land plots has been clarified, which is applied on the example of the Rodnikovsky rural settlement of the Kurganinsky district, where unused arable land overgrown with woody and shrubby vegetation has been established, resulting in an annual lost profit of 18.1 million rubles. The necessity of developing directions for improving the efficiency of land use to ensure sustainable development of rural areas is substantiated. The scientific novelty of the work consists in substantiating the categorical apparatus of research and methodological approaches to assessing the effectiveness of land use, determining the motivation of land users (landowners) to organize the rational use of land to ensure sustainable development of rural areas on the example of Krasnodar Territory.
The content of heavy metals in the gray-brown soils of the karakul pasture Karnabchul in Samarkand, Uzbekistan
Authors: Boboeva Nafisa , Obruyev Gafur , Mavlonov Bohodir , Omonov Anvar
Published: April 2024

This article presents the results of X-ray fluorescence analysis (XFA) of gray-brown soils on the content of heavy metals nickel, antimony, copper, zinc, arsenic, lead, vannadium, chromium, manganese, iron, cobalt and aluminum of the karakul pasture Karnabchul. The dynamics of the distribution of heavy metals over the soil profile of graybrown soils is described in graphic images. The drawings depict the landscape of the karakul breeding pasture Karnabchul and the soil section of gray-brown soils.
Obtaining microclimatic parameters of the environment as a result of scientific and technical creativity of IT students
Authors: Chernyshov Aleksandr , Fedorova Daria , Nazarova Alena
Published: April 2024

The results of measuring and processing the microclimatic parameters of classrooms are described: temperature and relative air humidity, as well as atmospheric pressure, obtained over 2 years as a result of involving IT students in scientific and technical creativity to create instruments and the necessary software infrastructure for a network for measuring environmental parameters using available components such as the Arduino platform.
Epigeic bryophytes of Bryansk parks and prospects for their use in landscape architecture
Authors: Adamovich Igor , Sivakov Vladimir , Voinash Sergey , Sokolova Viktoriia , Orekhovskaya Alexandra , Zagidullin Ramil , Lushpaeva Maria
Published: April 2024

Studies of epigeal bryophytes growing on the territory of public facilities in Bryansk have been carried out and the prospects of using mossy ones for the landscape organization of an urbanized environment have been considered. The studies were conducted under conditions of different levels of insolation and with different soil conditions. The species composition of the living ground cover was determined, the general projective cover of the living ground cover, the general projective cover of bryophytes, and the projective cover of each bryophyte species were established. The general and particular projective coverage of mosses was determined according to the methodology developed by us using information technology. The conducted studies have shown that the abundance and occurrence of epigeic bryophytes, as well as the dominance of mossy species in urban parks depends on the growing conditions. Bryophytes are less demanding on soil fertility, which leads to their dominance in conditions of serious disturbance of the soil cover or in its absence. Epigeic bryophytes of the parks Bryansk has a number of decorative characteristics, due to which they have a beneficial effect on the aesthetic appearance of green areas.
Numerical modeling of the dynamics of the spring thermal bar in Lake Dolgoe (Belarus): preliminary results
Authors: Tsydenov Bair O. , Sukhovilo Nina Yu. , Trunov Nikita S. , Degi Dmitriy V.
Published: April 2024

The results of numerical modeling of the dynamics of the spring thermal bar into Lake Dolgoe (Belarus), obtained using meteorological data from the Sharkovshchina station for April 2023, are presented. The dependence of the horizontal movement of the thermal bar front on the wind direction is revealed: the northern wind accelerates it, and the eastern wind slows it down. Modeled temperature distributions showed warming of water not only in the area where the channel flows from Lake Svyadovo, but also in the middle shallow part of the body of water.
Ecological state of the natural park “Ivano-Arakhleisky”
Authors: Zhelibo Tatiana , Banshchikova Ekaterina
Published: April 2024

The article presents the results of studies of the biodiversity of pyrogenically disturbed areas in the forest communities of the Ivano- Arakhleisky natural park, the identification of rare and specially protected plant species listed in the Red Book of the Trans-Baikal Territory and the Russian Federation. The lakes of the Ivano-Arakhlei system are located in the southeastern part of the Vitim plateau of the Osinovy and Yablonovy ridges. The territory of the park is characterized by the ecological value of natural areas, and is also a popular recreation area for citizens. Aquatic and terrestrial ecosystems are subject to anthropogenic impacts. Currently, digressive processes are dominant in the development of vegetation cover, leading to a simplification of the structure and a decrease in the species diversity of communities. Synanthropic plant species were recorded in the studied flora. The volume of ecosystem services provided directly depends on the biodiversity of the natural park. The general ecological condition of the study area is deteriorating due to an increase in anthropogenic pressure - forest fires, illegal logging, uncontrolled “wild” tourism, procurement of medicinal raw materials, and collection of beautiful flowering plants in bouquets.
A less common medicinal plant – Bupleúrum auréum
Authors: Yurkevich Maria , Akimova Alena
Published: April 2024

The article presents a literature review revealing the potential of Bupleúrum auréum as a valuable source of biologically active components. The chemical composition, medicinal properties and technology of growing the crop are shown. Bupleurum aureum (Bupleurum longifolium L. subsp. aureum (Fisch. ex Hoffm.) Soo) is the most effective and valuable crop of the genus Bupleurum of the Apiaceae family. The composition of aureus includes ascorbic acid, carotene, saponins, alkaloids, phytosterols, flavonoids, tannins and essential oils. The whole plant has valuable medicinal properties, but the aerial part of Bupleúrum auréum is used to a greater extent.
About one method for studying monitoring data for modeling potential seismic sources
Authors: Mukhin Alexey , Pavlova Alla , Telyatnikov Ilya
Published: April 2024

Modeling a lumpy geological media using the theory of block structures and studying the conditions for the occurrence of resonance phenomena in the areas where blocks meet will make it possible to determine the locations of potential rearrangements associated with the development of natural disasters. In this paper we present a description of experimental data on the study of the Earth’s crust block structure used to construct a model for the propagation of slow deformation waves in the lithospheric structures of the region. Since the appearance of anomalies in the velocities of longitudinal waves indicates the emergence of geological rearrangements in the zone of a developing seismic event, a comprehensive method of active vibroseismic monitoring using a signal with linear frequency modulation and a harmonic signal is proposed to identify dilatant-type structures.
On the issue of forecasting the runoff of mountain rivers in Uzbekistan
Authors: Gaidukova Ekaterina , Mirzoev Vagif , Lukas Rafael , Victorova Natalia
Published: April 2024

The article discusses the possibility of using dynamic models in the form of first- and second-order differential equations for forecasting water discharges in rivers of Uzbekistan. The models were tested on two small mountain catchments, which differ in the conditions for the formation of river runoff. Verification forecasts of average daily water discharges for five years are made. It was found that water discharges of the Akdarya River are predicted effectively with a daily lead time using both a first-order model and a second-order model. The listed models do not give satisfactory results when forecasting water discharges of the Zeravshan River at the Navoi city. In this case, it is necessary to modernize the models to suit the conditions of river runoff formation with an accurate account of the anthropogenic load, which is significant for the catchments of Uzbekistan.
Optimization of information support for land use in transboundary territories
Authors: Murasheva Alla , Stolyarov Victor , Lepekhin Pavel , Rakhymberdina Marzhan , Toleubekova Laylya
Published: April 2024

The article examines and defines the provisions for the use of land in the adjacent territories of the border zone of the Russian Federation and the Republic of Kazakhstan based on the use of remote sensing materials and their processing using GIS technologies. The need to solve the problem raised and the specifics of its solution are shown. The article discusses the main problems of economic use of land in the border zone of the Russian Federation and the Russian Federation. and ways to solve them. The authors proposed approaches that solve the problems of information support for monitoring the condition and use of lands in the border zone of the Russian Federation and the Republic of Kazakhstan. A model is proposed for creating an interstate database containing the main qualitative and quantitative characteristics of lands, with the aim of involving them in economic and economic turnover.
A water heater that adjusts its temperature based on solar energy
Authors: Rashidov Yu.K. , Aytmuratov B. , Aytbaev K.R. , Isakova D.
Published: April 2024

The calculation method for a water distributor of a constant cross section uniformly perforated along the height for a multilayer stratified thermal storage tank used in solar heating and hot water supply systems was developed. The advantages of using self-regulating stratification water heat accumulators in solar heat supply systems are considered. It is shown that the use of stratification for short-term and long-term thermal accumulation leads to an increase in the use of solar heat by 15-20% compared to batteries with completely mixing water. In hot water systems, these batteries can provide earlier preparation of hot water with the required temperature for consumers. Based on the analysis of world experience in the development of water heat accumulator designs using temperature stratified water and the stability of the stratified flow of coolant in the accumulator volume, a new, self-regulating, water accumulator design has been proposed.
Energy indicators of the micro-hydro power plant adjusted to outlet water flows from pump units
Authors: Uzakov G.N. , Kuziev Z.E. , Safarov A.B.
Published: April 2024

The article presents the prospects and main directions of the development of the use of hydropower sources, the parameters of the micro-hydro power plant, which works efficiently in variable and low-pressure water flows from the pumping units, and the results of the experimental studies of the micro-hydro power plant are presented. The developed vertical-axis micro-hydro power plant consists of a propeller-type hydro turbine with a diameter of 0.5 m, a bushing with a diameter of 0.2 m, and 6 blades with an optimal installation angle θopt=202.50°. It was determined that the maximum power of the micro-HPP is 3 kW and efficiency of the micro-HPP is equal to 0.88. Experimental work was carried out on the device, based on processing the results of the experiment, an empirical equation was obtained that determines the change in water flow consumption and turbine rotation speed of the mechanical power of the hydro turbine, and the significance of the regression equations was evaluated using Fisher‘s F-criterion. The significance level is 0.05 and at the number of degrees of freedom γ1 =63, γ2 =59 the calculated value of Fisher‘s F-criterion (Fcal= 1.03) is smaller than the value in the table (Ftab= 1,53), so the constructed regression equation is significant. The relative error of the calculation is ± 6 %. The proposed micro-HPP has the possibility of uninterrupted supply of electricity to electricity consumers in remote areas that are not connected to the centralized electricity supply system.
Development of a simulation model for assessing the technical condition of the magnetic circuit of oil power transformers by measuring the temperature of the tank and the external environment
Authors: Yusupov D.T. , Ismoilov I.K. , Norboev A.E. , Sa’dullaev A.B. , Babaev O.E.
Published: April 2024

In the article, the authors analyzed how oil-filled power transformers ensure reliable and stable operation of power transmission systems by providing efficient transmission of electricity of different voltages. In the article, the authors found that the main elements of oil-filled power transformers - the magnetic circuit, the coil and the technical condition of the oil - directly determine the performance of oil-filled power transformers. In this work, a simulation model was developed to evaluate the magnetic circuit of power oil transformers based on the measured temperature of the tank and the external environment during express diagnosis. A simulation model has been developed that allows to calculate the technical condition of oil power transformers operating in city power networks. It is shown that the developed model allows to calculate the value of the technical condition of the oil power transformer with the help of diagnostic parameters. In order to represent the technical state of the magnetic circuit of the oil power transformer, the functions of changing the state value of the output variable in the Mamdani fuzzy logic method are shown and the block diagrams are drawn up. Author’s using the Mamdani fuzzy logic method, express diagnosis of the technical condition of the “Magnetic core of the oil power transformer” was carried out in the Matlab simulink program. During the evaluation, the value of the output parameter is taken from 0 to 100, and each step is divided by 10, the smallest value is 0, and the largest is 100.
PV generation forecasting utilizing a classification-only approach
Authors: Theocharides Spyros , Makrides George , Georghiou George E.
Published: April 2024

The increasing use of photovoltaic (PV) systems in electricity infrastructure poses new reliability challenges, as the supply of solar energy is primarily dependent on weather conditions. Consequently, to mitigate the issue, enhanced day-ahead PV production forecasts can be obtained by employing advanced machine learning techniques and reducing the uncertainty of solar irradiance predictions through statistical processing. The objective of this study was to present a methodology for accurately forecasting day-ahead PV production using novel machine learning techniques and a classification-only forecasting approach. Specifically, the central component of the proposed method is a classifier model based on an Extreme Gradient Boosting (XGBoost) ensemble algorithm that classifies the respective daily 30-min profiles of the forecasted global horizontal irradiance (GHI), the measured incident irradiance (Gi), and the AC power (PAC) into a predetermined number of classes. The formed classifier model was used as a dictionary to designate the newly arrived forecasted GHI to a particular class and ultimately identify the corresponding forecasted PAC. The results demonstrated that the proposed forecasting solution provided forecasts with a daily normalised root mean square error (nRMSE) of 8.20% and a mean absolute percentage error (MAPE) of 6.91% over the test set period of one year, while the model's reproducibility was also evaluated and confirmed. Additionally, a comprehensive evaluation based on clear-sky index categories revealed that the model's performance was notably accurate on clear-sky days, while maintaining acceptable accuracy levels on moderate and overcast days. These findings underscore the versatility and robustness of the proposed methodology in handling diverse weather conditions and hold promise for improved PV production forecasts.
Redesign of Automatic Vacuum Cleaner with Participatory Approach
Authors: Said Ade Irawan , Yusri Ardhini Ramadhani , Damanik Tania Sephia Azzahra , Prabaswari Atyanti Dyah , Sofi Nurdiyana
Published: April 2024

While using automatic vacuum cleaners, users found dissatisfaction namely dust problem, obstacle problem, and narrow space problem. Therefore, the problems in this automatic vacuum cleaner must be fixed so that it can maximize user productivity. The methods that researchers will use to carry out this research include the participatory ergonomic which is a method for translating consumer needs into an optimal and solutive products by gain aspirations from users and stakeholders. The next method is Maynard Operation Sequence Technique which is a predetermined motion time method that aims to determine the standard time for doing work. There are also participatory usability and ergonomics methods that help this research. For the dust problem, researchers have looked for a solution to the problem, namely by adding SLAM and Artificial Intelligence logarithms to the automatic. For the narrow space problem, researchers have designed different nozzles for the automatic to use. For this exact problem, researchers have added a crevice nozzle to the automatic so that the automatic can insert suction in narrow areas such as the back of cupboards. Researchers created this feature so that users no longer need to bother cleaning dust from sofas, tables and other items in the user’s room.
Optimizing Workplace and Employee Safety through Ergonomics: Scoping Review
Authors: Putri Cahyani Amelia , Humaira Ramadhani Salwa
Published: April 2024

All aspects related to manual material handling if not done properly can result in losses and even accidents. One of the negative impacts of improper manual work handling is the onset of musculoskeletal complaints. To evaluate work postures, especially in production areas that are doing work, ergonomic principles must be applied. This literature research aims to, search for relevant literature related to the application of ergonomics, map the literature so that it can provide an understanding of the importance of ergonomics integration in work safety practices in various industrial sectors. This research uses a scoping review approach to identify, describe, and organize the literature related to optimizing work safety using ergonomic principles. The data collected in this study was gathered by searching scientific literature in online scientific databases using ScienceDirect using keywords and search phrases relevant to the research topic. The final 13 articles obtained were then analyzed, then the articles were classified into 2 topics, namely (1) the use of ergonomics interventions for employee safety and (2) the impact of ergonomics interventions on employee safety. The results of our review found that the application of ergonomics in occupational safety can result in a number of positive impacts on work and organizations such as improved safety, reduction of work-related injuries, increased productivity, reduced fatigue, improved work quality, and worker well-being.
Continuous Vector-Based Entropy Measurement on the Organizational Culture Evaluation
Authors: Rahman Arief , Partiwi Sri Gunani , Dewi Ratna Sari
Published: April 2024

It is believed that organizational culture is one of the primary strategies that drive employee productivity and competitiveness. The abstract of organizational culture is a complex and dynamic phenomenon and challenge in the field of research till the present. The efficacy of human interaction with an organization is closely related to the propagation of organizational culture. In the meantime, cultural entropy is a metric for assessing the process of cultural dissemination in organizations, where a reduced entropy value is preferable. This study aims to modify the entropy culture algorithms that accommodate discrete and continuous vectors. We applied Shanon’s entropy as the fundamental formulation and the Axelrod model as the peer interaction analysis. The proposed measurement of cultural entropy considers not only the desired values but also evaluates the gap with the espoused value of the organization. The modified cultural entropy algorithm can measure the entropy value for discrete and continuous vectors. Measuring cultural entropy using continuous data results in an approach that can better display value heterogeneity within organizations.