bluuebunny/crossref_metadata_2025 huggingface dataset:
International experience of adaptation and application of digital ecosystems by industrial enterprises and clusters
Authors: Babkin Alexander , Tashenova Larissa , Mamrayeva Dinara , Kulzhambekova Barno , Yormatov Ilmidin
Published: November 2024

This article is dedicated to exploring the theoretical aspects of forming and managing digital ecosystems in industrial enterprises; the main advantages of implementing digital ecosystems in organizational activities and their distinctive features compared to customized digital ecosystems are also examined. The integrated use of digital technologies, digital platforms, and ecosystems enables efficient resource management, enhances labor productivity, and improves key performance indicators. Drawing on thematic and scholarly research, the article analyzes key strategic plans for the formation of digital ecosystems to enhance competitiveness and foster innovation in the industrial sector of leading foreign countries such as the United States, Germany, Japan, and China. The relevance and keen interest of these countries in studying the aspects of forming and implementing digital ecosystems in industrial enterprises for government and scientific organizations funding such research are noted. The article presents business cases on digitization and the development of digital ecosystems in the machine-building industry, using examples from American company “Tesla”, French railway company “Alstom”, and the nuclear industry, exemplified by the Russian State Atomic Energy Corporation “Rosatom”.
Factor analysis of forest product price trends
Authors: Sushko Olga , Efimova Marina
Published: November 2024

The article considers some macroeconomic indicators that are potentially factors of price changes of forest industrial products using econometric methods. The study also determines the extent of influence of these factors on price values. The results of the analysis give an idea about trends in price changes of the forest industry complex, describing trends and market structure, and forecast price models of products of forest industry complex. In the construction of a forecast model for forest complex production, the multicollinearity of the macroeconomic factors considered, which presumably form the prices for products of the wood industry (plywood, hardwoods and softwood lumber) was taken into account. The price values of the Shanghai Stock Exchange were taken as a determining factor for the analysis of the dynamic series. The macroeconomic indicators of the North-West Federal District were considered as hypothetical effects on forest prices: currency exchange rate, GDP, population size, average per capita income, labour force size, inflation, reforestation. After correlation and regression analysis, four main factors were identified that shape the price of forest products selected for research (currency, population, per capita income, reforestation rate). This model can be used to determine the forecast values for forest products prices. Its availability is important for further development of proposals and measures aimed at regulating the values of the identified factors with a view to further manipulation of the prices of the forest industry complex, since their dynamics depend on them, including the country’s budget revenues. In the current conditions related to overcoming external sanctions barriers, it is particularly important to find additional sources of income for the federal budget.
Characteristics of the traditional management system of integrated services of intelligent supply chains: China’s experience
Authors: Sun Chunxing , Rogulenko Tatyana
Published: November 2024

The article examines the concept of intelligent supply chains in the context of the rapid development of information technologies. It describes the main characteristics of intelligent supply chains, including technology penetration, visualization and mobility functions, as well as environmental sustainability. Key elements of the integrated service management system for intelligent supply chains are discussed, including the intelligent supply chain platform, Internet of Things (IoT) technology, big data, artificial intelligence, blockchain, cloud computing, and the intelligent supply chain transportation network. The analytical part of the article presents data on the revenue growth from digital supply chain services in China’s logistics sector from 2018 to 2023. It is scientifically substantiated that the number of enterprises providing professional supply chain services in China is rapidly increasing, and their types are constantly expanding. Third-party logistics providers not only offer basic services but also leverage their accumulated experience to realize technical advantages.
Eco-mobility: The role of green technologies in shaping the future of transportation
Authors: Ushakov Denis , Shatila Khodor , Poliakova Inna , Podolskaya Tatiana
Published: November 2024

The transportation sector contributes significantly to global greenhouse gas emissions, accounting for nearly 24% of the world’s CO2 emissions. Green technologies such as electric vehicles (EVs), alternative fuels, and smart infrastructure have emerged as critical tools for reducing the sector’s environmental impact. This study examines the role of ecological policy support in facilitating the adoption of these green technologies and their subsequent effect on emission reduction. Using Structural Equation Modeling (SEM), the study analyzes survey data from 410 respondents across several Asian countries, focusing on the relationships between green technology adoption, environmental policy, and emission reductions. The results demonstrate that ecological policy support acts as both a direct and mediating factor, significantly enhancing the adoption of EVs, alternative fuels, and smart infrastructure, leading to substantial emission reductions. The findings highlight the importance of solid and supportive policies in accelerating the transition to eco-mobility and achieving global climate goals.
Optimizing stallion semen dilution based on hydrogen ion index
Authors: Naumenkova Valentina
Published: November 2024

The dependence of the results on the individual qualities of stallion semen is very high, which is an obstacle to the wider use of the cryopreservation method in practice. It has been shown in this work that semen from successive samples from the same stallion has different hydrogen ion concentrations (pH) and different buffer capacities. When Lactose-chelate-citrate-yalk environment (LCHCY) is diluted, the pH of semen varies depending on its initial value. But in 30-40% of cases, the hydrogen ion concentration (pH) shifts more or less from the expected value. In order to establish the maximum possible survival time of refrigerated and cryopreserved semen, the optimum pH acidity value after dilution was determined. The maximum survival time depended on the initial sperm concentration. It was possible to adjust the acidic pH value after dilution by dropwise addition of buffer solutions of the initial medium to the acidic or alkaline side. An individual approach to the semen dilution procedure by adjusting the pH value after dilution makes it possible to increase the number of stallions for artificial insemination with semen resistant to refrigeration and cryopreservation.
Identification of some viruses of the medicinal plant Physalis alkekengi L
Authors: Kadirova Zukhra , Mamarakhimov Oybek , Doniyorova Shakhnoza , Ibragimov Khayrullo , Sindorov Lutfullo
Published: November 2024

Determining the medical properties of Physalis alkekengi L. extracts, extracting active compounds with antibacterial activity and immunostimulatory properties, that is, physalins and flavonoids, requires the development of biotechnology for the creation of virus-free, healthy medicinal plants by microclonal propagation of plants using modern biotechnological approaches. In this article, TMV-Ph strain of tobacco mosaic virus was isolated from medicinal plant Physalis alkekengi L. and its biological, morphological and physical characteristics were studied. TMV- Ph strain was identified to be belong to the Virgaviridae family of the tobamovirus group. As a result of research on this topic, virus disease symptoms were identified in the Physalis alkekengi plant, and methods for isolating and biologically purifying the virus were developed. To achieve this, viral sap prepared from the leaves of infected plants was inoculated into the Nicotiana sylvestris plant to isolate the virus. For biological purification, infectious sap was prepared and inoculated into the Nicotiana glutinosa plant. The resulting necroses were excised, and the virus was passed through the plant two more times in a mononecrotic state, thereby biologically purifying it. After that, the virus was transferred to a host plant to propagate.
Ecological and mycological assessment of the air environment of poultry houses and methods of its improvement
Authors: Gunashev Shakhrudin , Abduragimova Raisa , Mikhailov Mikhail , Lemiasheuski Viktor , Melnikova Darya , Padilo Larisa
Published: November 2024

The sanitary state of the air environment in the conditions of industrial poultry farming with the concentration of a large number of poultry in a limited area increases the possibility of aerogenic spread of pathogens of various diseases. A significant amount of opportunistic microflora and fungal spores also accumulate in the air of poultry houses, which can cause mass disease in poultry. Constantly keeping poultry indoors in poultry farms leads to a decrease in the resistance of the bird’s body. Moreover, unfavorable phenomena are aggravated by deionization of air, the complete absence of ultraviolet insolation, and an increased level of mycological contamination, which reduces the immunobiological reactivity of the body and contributes to the emergence of a number of diseases. Methods. Bacteriological studies were carried out on materials from poultry farms in the Karabudakhkent and Khasavyurt regions of the Republic of Dagestan. Temperature and air humidity parameters were determined according to generally accepted methods. The dust content in the air was assessed by the gravimetric method. Air analysis for mycological contamination was carried out using Czapek agar medium. After the growth of colonies on the surface of Czapek’s medium, the species composition of the fungal cultures was determined and their toxicity was determined in laboratory animals. Results. In the air samples studied, fungi of the genus Aspergillus, Mucor, and Penicillium were isolated. Our studies of poultry house air found that 41.5 % of the total spores belonged to molds of the genus Penicillium, 3.5 % to Aspergillus and 55 % to the genus Mucor. Conclusions. The indicators of the temperature and humidity conditions of the air environment of the poultry house were within the limits of zoohygienic standards and met the requirements. Mycological and dust pollution of the poultry house air environment is increased during the daytime, especially during the period of feed distribution and feeding of poultry with the release of fungi from the genus Penicillium, Mucor and Aspergillus.
The lavra of hermetia illucens l. in the diet of broiler poultry
Authors: Zazimko Michael , Zabashta Nikolay , Golovko Elena , Sinelshchikova Irina , Izhevskaya Nataliya , Bychenko Natalia , Androsova Anastasia , Arakcheeva Elena
Published: November 2024

A study was conducted to study the effect of PVMM “Innovation BAC” from the hydrolyzed larva of Hermetia Illucens L. in the composition of drinking water of the diet on the growth rate, livestock safety, and feed conversion into live weight gain when raising broiler chickens of the «COBB 500» cross. A 42−day experiment was conducted on four groups of «COBB 500» broilers (n=50) in order to select the optimal dose of the new PVMM Innovation BAC for addition to drinking water for broilers from 1 to 21 days and from 22 to 37 days of cultivation. Drinking water in the control group was supplied to chickens without additives. In the experimental groups, in the period from 1 to 21 days, PVMM “Innovation BAC” was injected into drinking water in three dosages, from 2.5 (0.025%) to 7.5 ml (0.075%), with an interval of 2.5 ml / 10.0 liters of drinking water. The optimal dose of PVMM “Innovation BAC” as part of drinking water, in the amount of 5.0 ml / 10 l − up to 21 days and 10.0 ml / 10 l − from 22 to 37 days of cultivation, allowed to increase the live weight gain of COBB-500 cross broilers by 11.2%.
Harnessing the Carniolan honey bee breed in maximizing productivity
Authors: Zelenina Olga , Pimkina Tatyana
Published: November 2024

Climate warming has been observed everywhere in recent years, including the Kaluga region. This makes it possible to use more heat-loving, intensively developing bee breeds for the production of beekeeping products. The aim of the research is to evaluate the possibility of using Carniolan bees in apiaries for the production of commercial honey. The material of the research were 4-frame honeycomb packages of bees purchased in the Republic of Uzbekistan. Bee families were placed in 12-frame hives designed for a standard nest frame of 300 mm high and 435 mm wide. Bee family development was monitored weekly by counting the number of frames fully occupied by insects. Honey production was estimated by weighing the honey produced by each family. During the development, the bee families were divided into three groups according to the age of the mothers or their turnover. At the beginning of the main honey collection, the average number of bee families in the three groups was 11.8±1.41 frames, and at the end of the season it was 9.8±1.86 frames. From I group of bee families, which did not show tendency to swarming, 25.1±8.63 kg of honey was obtained; from II group of bee families, which replaced mothers by spontaneous change, without swarming – 15.7±7.13 kg, from III group, into which bee families were divided, taking into account productivity of formed broods - 4,4±6,16 kg. Honey collection per each family of bees at the beginning of the period averaged 15.4±12.44 kg. The increase in the number of bee families during the season, taking into account the formation of brood and culling, amounted to 10%. The results of the research allow to recommend the use of the Carniolan breed of bees in the apiaries of Kaluga region.
Exterior characteristics and live weight of jaydari breed
Authors: Shayusupov Bobir , Soatov Utkir , Shakirov Khahramon
Published: November 2024

This article investigates the exterior characteristics and live weight of the Jaydari breed, a prominent livestock breed known for its adaptability and productivity. The study aims to provide a comprehensive analysis of the physical traits and weight parameters, offering insights into breeding strategies and livestock management practices to enhance productivity and sustainability.
Monitoring the effectiveness of the quality management system in production enterprises
Authors: Khakimov Dilmurod , Nosirova Nilufarkhon
Published: November 2024

In this article, the scientific concept, phrases and obtained scientific research results related to the formation, implementation and management of the quality management system in production enterprises are analyzed and recommendations for the evaluation of the effectiveness are developed. The quality management system is a system that summarizes many years of experience of production enterprises and adopts all the positive world practices forcing enterprises to form certain quality practices and integrates all quality concepts into its philosophy.
The impact of various mulch materials on the development and maturation of watermelon
Authors: Zokirov Kurbonalijon , Sullieva Suluv , Bobojonov Otabek , Abdirashidova Gulnoza , Naurizbayev Alliyar , Musirmanov Shohboz , Raimjanova Ugilhon
Published: November 2024

In this article, we present information that is based on scientific research regarding the changes that occur in the growth parameters of the watermelon plant when it is grown using various types of mulching materials. The results of our study, aimed at examining the impact of various types of mulching materials (including transparent and black) on the development parameters of watermelon plants, indicate a significant influence of this research on the development parameters of the watermelons plant. The mulching materials had varying effects on several characteristics of the plants, including the quantity of additional branches on the base of the stem, the overall length of the primary stem, the overall quantity and area of coverage of leaves, the quantity of curls on the stem, and the weight of both the fruit and the plant. When we analyzed based on the types of mulch, the growth parameters of plant were higher (The number of leaves was 534 pieces, the total leaf surface of the plant was 2642 dm2 in the “Shirin” variety, and in the “Sharq Ne’mati” variety, these indicators were 556 pieces, 2892 dm2, respectively, in the hybrid “Dolby F1” the number of leaves 524 pieces and the leaf surface was 2996 dm2) in this option of the mulch with black polyethylene film.
Milk productivity of offspring depending on the milk productivity of mothers of holstein cows
Authors: Ballasov Ulugbek , Madrakhimov Shodlik , Boltayev Fakhriddin
Published: November 2024

As a result of scientific research, the milk productivity of Goldsmith cows was studied depending on the productivity of their mothers. Under conditions of homogeneous feeding and conservation, the milk productivity of their mothers in cows of group III was 4545.0 kg, in cows of group II - 5189.0 kg, in cows of group I - 321.0 kg, and the amount of milk received by their daughters for 1 lactation was 520.3 kg or 15.9% (P>0.999) and 196.0 kg or 5.5% (P>0.95), respectively, the fat content in milk is 18.3 kg or 14.8% (P>0.999) and 6.6 kg or 4.9% (P>0.99), the protein content in milk is 16.2 kg or 14.5% (P>0.999) and 6.0 kg or 4.9% (P>0.95)., A milk mixture with a content of 4% is 456.0 kg or 14.7% (P>0.999) and 165.0 kg or 4.9% (P>0.95), the milk ratio is 70.5 kg or 9.1% (P>0.999) and 19.5 kg or 2.4%, the average daily milk content is 1.7 or 15.7%. (P>0.999) and 0.7 kg, or 5.9% (P>0.95), were high.
Research on the lubrication of mechatronic transmission components of an eco-friendly vehicle
Authors: Pankratov Fedor , Panasenkov Dmitry , Kartashov Aleksandr , Gazizullin Ruslan
Published: November 2024

The article presents a research of the lubricity of the elements of the mechatronic transmission of an energy efficient truck. Particular attention is paid to the processes associated with ensuring reliable operation of the transmission and reducing friction between the components. Analysis of the distribution of fluids, performed using the SPH method, allows us to determine the lubricity conditions to improve performance characteristics, as well as reduce the temperature of the mechanisms to increase the service life and improve the overall efficiency of the system. The results of the research demonstrate the importance of choosing lubricants and their application modes, which directly affects the durability of transmission elements and the energy efficiency of the entire vehicle. These findings can serve as a basis for developing recommendations for optimizing the operation of mechatronic transmissions of cars.
The effectiveness nitrogen balance urea cotton using nitrification inhibitor washed typical sierozems
Authors: Khashimov F.Kh. , Tashkenbaev O.N. , Umurzakov A.A.
Published: November 2024

In the conditions of the sierozem zone soils, where the nitrogen content is relatively low, nitrogen fertilizers play the leading role among the fertilizers used for cotton. Nitrogen losses due to washout, denitrification, etc., during the growing season can reach 50% or more, and therefore the study of the effect of the nitrification inhibitor KMP on the efficiency of nitrogen fertilizers and the nitrogen balance using the nitrogen isotope 15N when applying urea for cotton is of great importance. Small-plot and field experiments with cotton were carried out on irrigation-eroded washed-out typical sierozem and were laid in the upper part of the slopes of the massifs. Nitrogen was applied against the background of RK in the form of urea enriched with 15N - 23-25%. The use of nitrification inhibitors with urea and slow-release fertilizers increased the use of fertilizer nitrogen to 38.1%, fixation of fertilizer nitrogen in the soil from 21.4 to 29.3%, reduced nitrogen losses with waste water and as a result of washout from 10.3 to 4.5%. Losses of fertilizer nitrogen due to washout and volatilization decreased from 35.8 to 19.6%.
The effect of different feeding methods on the growth of melon varieties
Authors: Nizomov Rustam , Sadullayev Sanjarbek , Yusupova Azada , Axmedov Ilxom O’g’li Rustamboy , Sabirova Kudrat Qizi Munisaxon
Published: November 2024

Experimental cultivation of medium-sized varieties of melon with strong growth of the aboveground part by adding a gidrogel substance to the soil and achieving high results.It should be noted that in the experiment, the effect of various soil mixtures and standards on the yield index was determined in the cultivation of medium-ripe varieties of melon. In the experiment was determined, that the yield level was 108.9-132.0% in the Kokcha variety, 102.2-136.8% in the Gurvak variety, and 200.2-210.1% in the Qari-qiz variety and the profitability of all varieties was strongly affected in the variant with the background and gidrogel substance applied at 12 kg/ha, and a high result was observed.The best result were 13% in the varieties of Kokcha (20.2 t/ha), 21% in Gurvak (20.8 t/ha) and Qari-qiz variety (30.3 t/ha). ga) It was found that 9 percent higher yield was obtained than the control option. Use of sedating substances in the planting of melon seeds in the conditions of Khorezm region.
Pantoea brenneri strains expressing red fluorescent protein tdTOMATO
Authors: Sokolnikova Lidiya , Bulmakova Daria , Berkutova Ekaterina , Suleimanova Aliya
Published: November 2024

Biocontrol strains of Pantoea brenneri expressing tdTomato fluorescent protein were obtained for further study of the bacteria’s ability to colonize plant surfaces. It was found that expression of the tdTomato fluorescent protein gene did not affect biomass accumulation and PGP- properties of the strains: ability to synthesize IAA, siderophores and biofilm production. Maximum production of fluorescent protein by P. brenneri strains was observed at 18 h of cultivation. The data obtained allows further experiments to assess plant colonization by P. brenneri strains.
Study on fauna, biology and ecology of Miridae (Hemiptera-Heteroptera) in agro-biocenosis and natural ecosystems of Uzbekistan
Authors: Boltaboev Adamboy , Mamarakhimov Oybek , Islamov Avaz , Kuchkarov Tukhtamurod , Tursunov Diyor
Published: November 2024

Agricultural production is a critical asset contributing to the economic development of numerous countries with arid and semi-arid climatic characteristics. In recent years, however, the world has witnessed significant losses in agriculture due to the negative impact of pests on crops. Therefore, the accurate assessment impact of agricultural pests on crop production is necessary. However, this could be challenging without proper investigations on their biological and ecological characteristics in data scarce regions, including Uzbekistan. To fulfill this scarcity, this study explores the fauna, biology and ecology of Miridae (Hemiptera- Heteroptera) species prevalent in agro-biocenosis and natural ecosystems of Uzbekistan. To better understand their biological and ecological characteristics, we performed field observations on 8 regions of Uzbekistan. The results indicated that three families (Miridae Hahn 1833, Nabidae Costa 1852, Antocoridae Fiber 1837), 6 generas and 20 species of blind (Miridae) are widespread in the selected regions.
Experimental studies on shear stiffness of soil under external loading conditions
Authors: Tursunov Sherzod , Tursunova Dilafuruz , Vakhidov Abror , Khojamov Zieviddin , Makhmudova Firuza , Masaridinova Nilufar , Bobobekov Bekzod
Published: November 2024

Calculation of foundations using elastic models simplifies the calculation of loads and impacts on foundations. However, in some cases they can significantly distort the real deformations, foundation efforts and in some cases cause their damage. In practice, designing and calculating foundations using these models, there are cases of excessively high concentrations of bending moments and shear forces, which requires a high percentage of reinforcement in these nodes. Sometimes, for example, with distributed loads, with the real presence of such efforts, calculations performed on models with a bedding coefficient show, on the contrary, their absence. The type of the adopted model and the rigidity of the foundation structures have a significant impact on the calculated deflection of the beam. The value of the adopted values of the model parameters also has a great impact on the calculation results. Calculation models in the area of contact with the soil base, the reactive pressure of the foundation P (x) linearly depends on the coefficient of local soil compression C1 and the shear resistance of the soil C2.
Comment réaliser un examen palpatoire de la hanche chez le jeune chien
Authors: Cabon Quentin , Cachon Thibaut
Published: November 2024

La palpation de la hanche doit se faire sous anesthésie générale
ou sous tranquillisation approfondie.
Le test d’Ortolani vise à évaluer la laxité coxo-fémorale. Plus la laxité est importante plus le signe d’Ortolani est aisé à obtenir. Ce test peut être réalisé en décubitus latéral ou dorsal tandis que le test de Bardens s’effectue en décubitus latéral.
Le test de Barlow est le pendant du test d’Ortolani. Réalisés dans un même geste, ces tests permettent la mesure de l’angle de réduction et de l’angle de sub-luxation.
Plus l’angle de réduction est élevé, plus la laxité coxo-fémorale est marquée.
Plus l’angle de sub-luxation est élevé, plus le rebord acétabulaire est incliné et dégradé.

Les angles de réduction et de sub-luxation sont intéressants pour indiquer une intervention d’ostéotomies multiples du bassin.
Comment je fais une radiographie des hanches chez le chien
Authors: Cabon Quentin , Cachon Thibaut
Published: November 2024

Réaliser des clichés radiographiques de bonne qualité est indispensable pour analyser la présence d’une éventuelle dysplasie de hanche.

Les radiographies doivent être effectuées sous tranquillisation forte ou sous anesthésie générale afin d’obtenir une myorelaxation nécessaire à la qualité des clichés.

La vue radiographique standard est faite, l’animal positionné en décubitus dorsal, les fémurs parallèles entre eux, le bassin symétrique et les rotules au zénith.

L’évaluation subjective des hanches peut être réalisée sur ce cliché, ainsi que la mesure des angles de Norberg-Olson.

Afin d’évaluer la laxité articulaire et ainsi, le degré de dysplasie d’une hanche, des techniques dites “en distraction” ont été décrites, telles que la méthode PennHIP®, brevetée par l’université de Pennsylvanie, ou la méthode de Vezzoni, non brevetée.
Un indice de distraction peut être calculé sur ces clichés, et donner des indications sur la probabilité de développement d’arthrose dans la hanche concernée.

Ces techniques, lorsqu’elles sont bien appliquées, permettent d’établir des modalités thérapeutiques adaptées à chaque chien.

Des vues radiographiques spécifiques, telles que la vue DAR (Dorsal Acetabular Rim) permettent notamment d’évaluer le rebord acétabulaire dorsal. Cette vue est intéressante pour décider d’une éventuelle indication d’ostéotomie du bassin.
Le traitement chirurgical de la dysplasie coxo-fémorale chez le chien
Authors: Caraty Johan , Cachon Thibaut
Published: November 2024

Il existe de nombreuses techniques chirurgicales qui ont pour but de prévenir ou d’atténuer les effets néfastes de la dysplasie de la hanche.

Les techniques prophylactiques rassemblent la symphysiodèse juvénile pubienne, les ostéotomies pelviennes et les ostéotomies fémorales tandis que les techniques palliatives regroupent la dénervation, la prothèse totale de hanche (PTH) et la résection de la tête et du col du fémur.

Les résultats cliniques sont en général de meilleure qualité lors de traitements prophylactiques.

Mis à part la PTH, les traitements palliatifs n’apportent à l’animal qu’une amélioration limitée.
Toutefois, il est essentiel de proposer un traitement adapté à chaque cas afin d’obtenir le maximum d’efficacité de chacune des techniques.

Pour ce faire, l’âge de l’animal, le degré d’instabilité, le degré d’arthrose, la race, le poids, son caractère, l’implication et les moyens des propriétaires sont des facteurs à prendre en compte de manière systématique.
Aspects législatifs et réglementaires de la dysplasie de hanche :
mise au point
Authors: Cabon Quentin , Cachon Thibaut , Genevois Jean-Pierre
Published: November 2024

La dysplasie coxo-fémorale est un vice rédhibitoire comme stipulé dans le Code rural et de la pêche maritime. Cette affection est donc soumise à un cadre législatif très strict, qu’il convient de connaître pour orienter le propriétaire d’un chien dysplasique dans ses démarches.

Le délai pour ouvrir une action au tribunal d’instance selon les vices rédhibitoires est de 30 jours après la livraison du chien.

La “garantie de conformité” permet à l’acheteur d’un chien dysplasique de faire valoir ses droits dans un cadre juridique plus souple que les vices rédhibitoires. Il doit toujours être recommandé à l’acheteur et à l’acquéreur de s’entendre sur un accord à l’amiable autant que faire se peut.

Le protocole de dépistage de la dysplasie de la hanche est très codifié par les clubs de race et la société centrale canine.

L’âge minimum pour la réalisation de la radiographie coxo-fémorale officielle est en général 12 mois. Elle doit être réalisée sous anesthésie ou forte tranquillisation approfondie afin d’obtenir un parfait relâchement musculaire et un cliché de très bonne qualité, notamment pour ce qui concerne le positionnement du chien.

Les radiographies doivent être transmises par la poste au lecteur officiel dans leur version argentique, ou par envoi numérique, lors d’impression sur support plastique transparent. Les radiographies numériques peuvent être directement téléchargées sur un portail dédié.

Le propriétaire doit constituer un dossier de demande de lecture qui est adressé au lecteur officiel. A l’issue de l’examen, le lecteur classe les hanches du chien dans l’un des cinq stades de dysplasie de la grille de cotation de la FCI (Fédération cynophile internationale).
Ärztliche Führung im Krankenhaus der Zukunft
Authors: Balling Stephan , Bohnet-Joschko Sabine
Published: November 2024

Zielsetzung Wir untersuchen, welche Kompetenzen für ärztliche Führungskräfte im Krankenhaus der Zukunft relevant sind.

Methodik Einschätzungen von Akteuren und Stakeholdern aus dem Gesundheitswesen wurden in einem qualitativen Design durch Experteninterviews erhoben.

Ergebnisse Medizinische Fachlichkeit dominiert bei der Besetzung ärztlicher Führungspositionen. Analytisches und strategisches Denken, Organisationstalent und Entscheidungsfreude, Kommunikationsfähigkeit, Verständnis für betriebswirtschaftliche Zusammenhänge, Wissen zu Versorgungssystemen und Ethik sowie Veränderungs- und Digitalkompetenz gewinnen an Bedeutung.

Schlussfolgerung Gute ärztliche Führungskräfte sind kommunikativ stark, Visionäre und Leitbildgeber und bringen die Fähigkeit zur Veränderung mit. Besondere technische Fähigkeiten wie Programmiersprachen sind hingegen nicht bedeutend.
Influence of initial speciation of platinum and palladium on their accumulation and toxicity towards phytoplankton
Authors: Michaud-Valcourt Julien , Blanc Sylvie , Courtois Louis , Mertens Jelle , Le Faucheur Séverine , Fortin Claude
Published: November 2024

Environmental context The increasing global demand for platinum and palladium for the development of new technologies will likely enhance their biogeochemical mobility. However, our understanding of the environmental risks of these metals remains incomplete. To help fill this knowledge gap, we determined the toxicity of various forms of platinum and palladium on a green alga. We found that palladium was more toxic than platinum and that platinum toxicity depended on the form tested. Rationale Chemical equilibrium-based models such as the biotic ligand model (BLM) can be used to predict metal toxicity towards aquatic organisms. However, some metals such as platinum (Pt) and to a lesser extent palladium (Pd) are known to be kinetically hindered, i.e. reactions between these elements and ligands in solution might be slow relative to the biota exposure time. The BLM applicability may thus be limited for these metals and their ecological risk assessment may require consideration of their initial form of entry in aquatic ecosystems. Methodology This study investigates the relationship between inorganic Pt and Pd initial speciation and their bioavailability and toxicity toward the unicellular green alga Raphidocelis subcapitata. Chloro- or amino-coordinated Pt and Pd complexes such as PtIICl42−, PtIVCl62−, PtII(NH3)42+, PdIICl42− and PdII(NH3)42+ were examined in 96-h algae exposure experiments to determine growth inhibition and metal accumulation. Investigation of the complex stability over time of the tested complexes was carried out using spectrophotometry measurements and kinetic calculations. Results Similar accumulation and no toxicity (half maximal effective concentration, EC50 > 150 µg L−1) were observed for both in our tested conditions. Nevertheless, evidence of PtIICl42− dissociation was observed whereas PtII(NH3)42+ was stable. Exposure to PtIVCl62− showed stronger algal growth inhibition (EC50 = 142 µg L−1) than exposure to PtIICl42− but similar accumulation. This phenomenon might be partly explained by the generation of free chloride radicals through PtIV reduction in the presence of light. Similar accumulation and toxicity were observed for both PdIICl42− (EC50 = 4.69 µg L−1) and PdII(NH3)42+ (EC50 = 2.40 µg L−1). Discussion These results were coherent with the relatively rapid speciation changes of the PtII complexes as observed and modelled. We therefore conclude that the initial speciation of the studied chloro- and amino-coordinated PtII and PdII complexes is not a determining parameter of their accumulation and toxicity towards R. subcapitata.
Double copy, Kerr–Schild gauges and the effective-one-body formalism
Authors: Ceresole Anna , Damour Thibault , Nagar Alessandro , Rettegno Piero
Published: November 2024

We look for a classical double-copy-inspired relation between gravity and electrodynamics by connecting the descriptions of the scattering of two point masses, and of two point charges, in terms of perturbative (post-Minkowskian or post-Lorentzian) expansions. We do so by recasting available analytical information within the effective-one-body formalism using Kerr–Schild gauges in both cases. Working at the third perturbative level, we find that the usual linear relation (holding in the probe limit) between the adimensionalized electric potential,

ϕ
~

=

G
M

e
1

e
2

ϕ

el

, and the Schwarzschild-like gravitational one,

Φ

grav

, is deformed, in the comparable-mass, comparable-charge, case, into a nonlinear relation which becomes universal in the high energy limit:

Φ

grav

=
2

ϕ
~

−
5

ϕ
~

2

+
18

ϕ
~

3

.
On the overlap reduction function of pulsar timing array searches for gravitational waves in modified gravity
Authors: Cordes Nina , Mitridate Andrea , Schmitz Kai , Schröder Tobias , Wassner Kim
Published: November 2024

Pulsar timing array (PTA) searches for gravitational waves (GWs) aim to detect a characteristic correlation pattern in the timing residuals of galactic millisecond pulsars. This pattern is described by the PTA overlap reduction function (ORF)

Γ

a
b

(

ξ

a
b

)

, which is known as the Hellings–Downs (HD) curve in general relativity (GR). In theories of modified gravity, the HD curve often receives corrections. Assuming, e.g. a subluminal GW phase velocity, one finds a drastically enhanced ORF in the limit of small angular separations between pulsar a and pulsar b in the sky,

ξ

a
b

→
0

. In particular, working in harmonic space and performing an approximate resummation of all multipole contributions, the auto correlation coefficient Γ

aa
seems to diverge. In this paper, we confirm that this divergence is unphysical and provide an exact and analytical expression for Γ

aa
in dependence of the pulsar distance La
and the GW phase velocity

v

ph

. In the GR limit and assuming a large pulsar distance, our expression reduces to

Γ

a
a

=
1

. In the case of subluminal phase velocity, we show that the regularization of the naive divergent result is a finite-distance effect, meaning that Γ

aa
scales linearly with fLa
, where f is the GW frequency. For superluminal phase velocity (subluminal group velocity), which is relevant in the case of massive gravity, we correct an earlier analytical result for Γ

ab
. Our results pave the way for fitting modified-gravity theories with nonstandard phase velocity to PTA data, which requires a proper understanding of the auto correlation coefficient Γ

aa
.
Strong alignment of micro-rotation and vorticity in 3D micropolar flows*
Authors: Guterres R H , Melo W G , Niche C J , Perusato C F , Zingano P R
Published: November 2024

Rigid particles suspended on a micropolar fluid provide microstructure that coexists and interacts with the local rotation of the fluid given by the vorticity. In this work we prove that the particles’ angular velocity and the vorticity strongly align for large times. We provide average and supnorm estimates for the decay rate of the difference between these two vectors, which measures the alignment.
Superconductor bistable vortex memory for data storage and readout
Authors: Karamuftuoglu M A , Ucpinar B Z , Razmkhah S , Pedram M
Published: November 2024

Despite superconductor electronics (SCE) advantages, the realization of SCE logic faces a significant challenge due to the absence of dense and scalable nonvolatile memory. While various nonvolatile memory technologies, including Non-destructive readout, vortex transitional memory, and magnetic memory, have been explored, designing a dense crossbar array and achieving a superconductor random-access memory remains challenging. This work introduces a novel, nonvolatile, high-density, and scalable vortex-based memory design for SCE logic called bistable vortex memory. Our proposed design addresses scaling issues with an estimated area of 10 × 10 um2 while boasting zero static power with the dynamic energy consumption of 12 aJ for single-bit read and write operations. The current summation capability enables analog operations for in-memory or near-memory computational tasks. We demonstrate the efficacy of our approach with a 32 × 32 superconductor memory array operating at 20 GHz. Additionally, we showcase the accumulation property of the memory through analog simulations conducted on an 8 × 8 superconductor crossbar array.
Comparison of

J
c

measurements obtained by magnetisation and transport methods for a GdBCO-Ag bulk
Authors: Taylor R W , Pantoja A E , Chong S V , Hlásek T , Plecháček J , Weijers H W , Ainslie M D , Badcock R A , Bumby C W
Published: November 2024

Accurate numerical modelling of bulk rare-earth barium cuprate ((RE)BCO) high-temperature superconductors requires measured data of the temperature and magnetic field dependence of the critical current density,

J
c

, and flux-flow exponent, n. However, there is limited published

J
c

and n data for modern (RE)BCO bulks. In this work, transport and magnetisation methods were applied to characterise

J
c

, n, and the critical temperature,

T
c

, of a commercially available top-seeded melt growth (TSMG) GdBCO-Ag bulk. Both measurement methods exhibit good quantitative and qualitative agreement when the transport electric field criterion is scaled from 1

μ

V

cm

−
1

to 10−4

μ

V

cm

−
1

. Transport-derived thermo-magneto-angular dependent

J
c

data for the TSMG GdBCO-Ag bulk are compared to equivalent data for a SuNAM SCN12700 GdBCO coated-conductor tape. Significant qualitative differences are observed between the data for the bulk and tape, with the tape data featuring neither a fishtail effect nor a

B
∥
c

peak, both of which are present in the bulk data. A reliable sample preparation and mounting method is presented, which enables the transport characterisation of (RE)BCO bulk superconductors over a large range of temperatures and applied field magnitudes and angles. All

J
c

and n data presented within this manuscript are available in the supplementary material, and can be interpolated into finite-element models to more accurately capture the superconducting behaviour of GdBCO superconductors.
Distinguishability-induced many-body decoherence
Authors: Dittel Christoph , Buchleitner Andreas
Published: November 2024

We show that many-body interference phenomena are exponentially suppressed in the particle number, if the identical quantum objects brought to interference acquire a finite level of distinguishability through statistical mixing of some internal, unobserved degrees of freedom. We discuss consequences for cold atom and photonic circuitry experiments.
Simultaneous temperature and strain sensing using few-mode fiber in a single-ended BOTDA system
Authors: Zhang Lixin , Zhang Lei , Liu Zijuan , Wang Jianjian , Fan Haijun , Li Jiaqi , Li Yongqian
Published: November 2024

Few-mode fibers contain a limited number of orthogonal modes, and the Brillouin frequency shift of different modes has different sensitivities to temperature and strain, which provides the possibility of realizing multi-parameter sensing. This paper proposes a novel single-ended Brillouin optical time domain analysis (BOTDA) sensing system that uses Rayleigh backscattered light in the fiber as the probe light, and uses a four-mode graded-index few-mode fiber (4GI-FMF) and a photonic lantern to realize two-parameter sensing. The mechanism of single-ended BOTDA based on FMF is investigated, the modes of 4GI-FMF and the principle of two-parameter measurement are analyzed, and an experimental setup utilizing single-ended BOTDA system with 4GI-FMF is constructed. The performance of the sensing system is analyzed by characterizing and evaluating the Brillouin scattering spectral of different modes and the sensitivity of Brillouin frequency shift to temperature and strain. The proposed sensing system realized reliable temperature and strain discrimination on a 1 km long 4GI-FMF, with temperature and strain accuracies of 1.9 °C and 43.7 με, respectively.
Non-toxic Cu3BiS3 thin film solar cells with Al doped TiO2 as electron-transport layers
Authors: Yu Fucheng , Huang Zengguang , Zhang Jinghong , Zhong Sihua
Published: November 2024

Cu3BiS3 has been considered as an attractive photovoltaic material due to its suitable bandgap, excellent photoelectric properties, abundant component elements and low toxicity. However, most of the reported Cu3BiS3 solar cells contain toxic components in other functioning layers such as CdS in electron-transport layers (ETLs). In this study, the Cu3BiS3 thin films were prepared by spin-coating method. We find that the CuCl concentration in precursor solutions has influences on both the optical bandgap and grain size of the Cu3BiS3 thin films, thus affecting the performance of solar cells. The optimal CuCl concentration is 0.91 M. Besides, Al doped TiO2 (ATO) and MoOx films are employed as ETLs and hole-transport layers (HTLs) respectively, constructing a totally non-toxic thin film solar cell. Moreover, it is demonstrated that the ratio (R
Al:Ti) of Al source (Aluminum nitrate nonahydrate) to Ti source [Titanium diisopropoxide bis(acetylacetonate)] in the precursor solution of ATO and the thickness of MoOx have significant influences on solar cells. Moderate Al doping in ATO, e.g. R
Al:Ti=1:50, can produce oxygen vacancies and accelerate the interfacial charge transfer, thus resulting in the increased short-circuit current density and fill factor. With the optimized Cu3BiS3 absorber, ETL and HTL, improved cell performances are observed comparted to the spin-coated Cu3BiS3 counterparts with CdS as ETLs in literature.
Evaluation of IMERG climate trends over land in the TRMM and GPM eras
Authors: Zhu Siyu , Li Zhi , Chen Mengye , Wen Yixin , Liu Zhong , Huffman George J , Tsoodle Theresa E , Ferraro Sebastian C , Wang Yuzhou , Hong Yang
Published: November 2024

The Integrated Multi-satellitE Retrievals for global precipitation measurement (GPM) mission (IMERG) is a global precipitation product suite consisting of both near-real-time and research-grade products with high spatiotemporal resolution. However, the IMERG developers note that it is designed as a high resolution precipitation product (HRPP), not a Climate Data Record, and its ability to capture climate trends remains uncertain. Therefore, it is imperative to explore and quantify IMERG’s capability in capturing climate trends for our community. This study examines the climatological performance of IMERG Final (Version 06) by analyzing annual precipitation trends over land from 2001 to 2019 using the Mann-Kendall analysis, taking gauge records as ground truth. Three different matching strategies are applied: at gauge locations, at 0.1° pixels, and at 1.0° pixels. Additionally, this study compares the performances during the TRMM (2001–2014) and GPM eras (2015–2019). Our results find: (1) IMERG daily data exhibits high spatial consistency with gauge records at both gauge locations and 0.1° resolution, consistent with its Global Precipitation Climatology Centre calibration, with a conversion rate of approximately 89.3%; (2) IMERG performs much better overall in the GPM era than in the tropical rainfall measuring mission (TRMM) era, evidenced by a lower proportion of unreliable samples (∼10.2% vs. ∼21.2%); (3) The proportion of samples showing consistent trends with gauge data is 86.7% in the GPM era, much higher than the 70.5% and 75.3% shown by the entire record and the TRMM era, respectively. This improvement in the GPM era suggests that the within-mission consistency of IMERG is higher than the between-mission consistency, likely due to residual differences in the calibration methods used during the TRMM and GPM missions. This study broadens the perspective on IMERG, showcasing its additional potential for analyzing climate trends despite its design only as a HRPP. Crucially, it highlights and reconfirms how the GPM era has enhanced IMERG’s capacity for accurately tracking global precipitation trends.
Precipitation extremes projected to increase and to occur in different times of the year
Authors: Treppiedi Dario , Villarini Gabriele , Bender Jens , Noto Leonardo Valerio
Published: November 2024

There is high confidence that precipitation extremes are projected to become more frequent and severe and, to a lesser extent, that their seasonality may change. However, these precipitation characteristics are dealt with separately, without examining whether magnitude and seasonality are jointly projected to change. Here we assess how the seasonality and magnitude of precipitation extremes are jointly projected to change for different climate scenarios. We perform analyses at the global scale using nine global climate models and four different emission scenarios. We identify large areas of the globe where the magnitude of the extremes is expected to increase as the emissions increase; at the same time, large changes in the seasonality of these extremes are projected to impact regions mainly located in the tropical and sub-tropical areas. These changes could impact our response and mitigation efforts and our resilience against such phenomena in response to climate change.