bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of the Geomechanical Phenomena That Led to the Appearance of Sinkholes at the Lupeni Mine, Romania, in the Conditions of Thick Coal Seams Mining with Longwall Top Coal Caving
Authors: Marian Dacian-Paul , Onica Ilie
Published: June 2021

Thick coal seam no. 3, block V, Lupeni mine was mined by longwall top coal caving (LTCC). After the coal mining, the ground surface underwent continuous subsidence, but since 2008, three sinkholes have appeared on the surface with important dimensions, atypical for the geo-mining conditions in this coal basin. This article is a synthesis of the study meant to decipher the geo-mechanical phenomenon that led to the emergence of these sinkholes and highlighting the main factors that contributed to the development of this phenomenon. For this purpose, measurements were made on the terrain deformations using photogrammetric methods and aerial laser scanning, when modeling with 3D finite elements, in elasto-plasticity and with the help of the Knothe–Budrik influence function. The factors that contributed to the occurrence of discontinuous subsidence phenomena are shallow mining depth, the LTCC mining method, and the presence of faults in the vicinity of the mining panels. Additionally, the geo-mechanical phenomena of subsidence terrace development and sinkholes in the mining subsidence troughs at the Lupeni mine were described.
Market Power in the Irish Beef Processing Industry
Authors: Fu Rao , Li Chenguang , Wang Liming
Published: June 2021

Irish beef processors and cattle farmers have been involved in a lasting controversy on power asymmetry. This paper estimates the degree of market power in the Irish beef processing industry. The New Empirical Industrial Organization approach is extended for estimation, and the market power is testified by conjectural elasticity with supply and demand functions, indicating that beef processors exert a significant market power on cattle farms. Export-orientation and high subsidies are two outstanding features in the Irish beef industry. Exports and subsidies are shown in this paper to have an insignificant influence on market power. This paper confirms that beef processors can exercise market power on farmers to lower prices below the marginal cost.
Schrödinger–Newton Model with a Background
Authors: Mendonça José Tito
Published: June 2021

This paper considers the Schrödinger–Newton (SN) equation with a Yukawa potential, introducing the effect of locality. We also include the interaction of the self-gravitating quantum matter with a radiation background, describing the effects due to the environment. Matter and radiation are coupled by photon scattering processes and radiation pressure. We apply this extended SN model to the study of Jeans instability and gravitational collapse. We show that the instability thresholds and growth rates are modified by the presence of an environment. The Yukawa scale length is more relevant for large-scale density perturbations, while the quantum effects become more relevant at small scales. Furthermore, coupling with the radiation environment modifies the character of the instability and leads to the appearance of two distinct instability regimes: one, where both matter and radiation collapse together, and others where regions of larger radiation intensity coincide with regions of lower matter density. This could explain the formation of radiation bubbles and voids of matter. The present work extends the SN model in new directions and could be relevant to astrophysical and cosmological phenomena, as well as to laboratory experiments simulating quantum gravity.
Many-Electron QED with Redefined Vacuum Approach
Authors: Soguel Romain N. , Volotka Andrey V. , Glazov Dmitry A. , Fritzsche Stephan
Published: June 2021

The redefined vacuum approach, which is frequently employed in the many-body perturbation theory, proved to be a powerful tool for formula derivation. Here, we elaborate this approach within the bound-state QED perturbation theory. In addition to general formulation, we consider the particular example of a single particle (electron or vacancy) excitation with respect to the redefined vacuum. Starting with simple one-electron QED diagrams, we deduce first- and second-order many-electron contributions: screened self-energy, screened vacuum polarization, one-photon exchange, and two-photon exchange. The redefined vacuum approach provides a straightforward and streamlined derivation and facilitates its application to any electronic configuration. Moreover, based on the gauge invariance of the one-electron diagrams, we can identify various gauge-invariant subsets within derived many-electron QED contributions.
Preserving the Shape of Functions by Applying Multidimensional Schoenberg-Type Operators
Authors: Moldovan Camelia Liliana , Păltănea Radu
Published: June 2021

The paper presents a multidimensional generalization of the Schoenberg operators of higher order. The new operators are powerful tools that can be used for approximation processes in many fields of applied sciences. The construction of these operators uses a symmetry regarding the domain of definition. The degree of approximation by sequences of such operators is given in terms of the first and the second order moduli of continuity. Extending certain results obtained by Marsden in the one-dimensional case, the property of preservation of monotonicity and convexity is proved.
Nutritional Evaluation and Risk Assessment of the Exposure to Essential and Toxic Elements in Dogs and Cats through the Consumption of Pelleted Dry Food: How Important Is the Quality of the Feed?
Authors: Macías-Montes Ana , Zumbado Manuel , Luzardo Octavio , Rodríguez-Hernández Ángel , Acosta-Dacal Andrea , Rial-Berriel Cristian , Boada Luis , Henríquez-Hernández Luis
Published: June 2021

Dry feed for pets lacks specific legislation regarding maximum residue limits for inorganic elements. The aim of the present study was to determine the content of 43 inorganic elements in dog and cat feed, studying whether there were differences according to the supposed quality of the food and performing the risk assessment for health. Thirty-one and thirty packages of pelleted dry food for cats and dogs, respectively, were analyzed. After acidic microwave-assisted digestion, elements were detected and quantified by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). In general, we did not observe important differences in the content of elements according to the supposed quality of the brand. Among trace elements, selenium and manganese are above the dietary reference value. Arsenic and mercury showed the highest acute hazard indexes, which make them risk factors for the health of dogs and cats. Aluminum, uranium, antimony and vanadium contents were above the toxic reference value and showed the highest acute hazard indexes. It is necessary to improve the legislation regarding the food safety of pets, for their health and to protect the rights of consumers.
Transcriptional Profiling of Aflatoxin B1-Induced Oxidative Stress and Inflammatory Response in Macrophages
Authors: Ma Jinglin , Liu Yanrong , Guo Yongpeng , Ma Qiugang , Ji Cheng , Zhao Lihong
Published: June 2021

Aflatoxin B1 (AFB1) is a highly toxic mycotoxin that causes severe suppression of the immune system of humans and animals, as well as enhances reactive oxygen species (ROS) formation, causing oxidative damage. However, the mechanisms underlying the ROS formation and immunotoxicity of AFB1 are poorly understood. This study used the mouse macrophage RAW264.7 cell line and whole-transcriptome sequencing (RNA-Seq) technology to address this knowledge-gap. The results show that AFB1 induced the decrease of cell viability in a dose- and time-dependent manner. AFB1 also significantly increased intracellular productions of ROS and malondialdehyde and decreased glutathione levels. These changes correlated with increased mRNA expression of NOS2, TNF-α and CXCL2 and decreased expression of CD86. In total, 783 differentially expressed genes (DEGs) were identified via RNA-Seq technology. KEGG analysis of the oxidative phosphorylation pathway revealed that mRNA levels of ND1, ND2, ND3, ND4, ND4L, ND5, ND6, Cyt b, COX2, ATPeF0A and ATPeF08 were higher in AFB1-treated cells than control cells, whereas 14 DEGs were downregulated in the AFB1 group. Furthermore, seven immune regulatory pathways mediated by oxidative stress were identified by KEGG analysis. Altogether, these data suggest that AFB1 induces oxidative stress in macrophages via affecting the respiratory chain, which leads to the activation of several signaling pathways related to the inflammatory response.
Beryllium Radioactive Isotopes as a Probe to Measure the Residence Time of Cosmic Rays in the Galaxy and Halo Thickness: A “Data-Driven” Approach
Authors: Nozzoli Francesco , Cernetti Cinzia
Published: June 2021

Cosmic rays are a powerful tool for the investigation of the structure of the magnetic fields in the Galactic halo and the properties of the inter-stellar medium. Two parameters of the cosmic ray propagation models, the Galactic halo (half) thickness, H, and the diffusion coefficient, D, are loosely constrained by current cosmic ray flux measurements; in particular, a large degeneracy exists, with only H/D being well measured. The 10Be/9Be isotopic flux ratio (thanks to the 2 My lifetime of 10Be) can be used as a radioactive clock providing the measurement of cosmic ray residence time in a galaxy. This is an important probe with which to solve the H/D degeneracy. Past measurements of 10Be/9Be isotopic flux ratios in cosmic rays are scarce, and were limited to low energy and affected by large uncertainties. Here a new technique to measure 10Be/9Be isotopic flux ratio, with a data-driven approach in magnetic spectrometers is presented. As an example, by applying the method to beryllium events published via PAMELA experiment, it is now possible to determine the important 10Be/9Be measurement while avoiding the prohibitive uncertainties coming from Monte Carlo simulations. It is shown how the accuracy of PAMELA data strengthens the experimental indication for the relativistic time dilation of 10Be decay in cosmic rays; this should improve the knowledge of the H parameter.
Axion-like Particle Searches with IACTs
Authors: Batković Ivana , De Angelis Alessandro , Doro Michele , Manganaro Marina
Published: June 2021

The growing interest in axion-like particles (ALPs) stems from the fact that they provide successful theoretical explanations of physics phenomena, from the anomaly of the CP-symmetry conservation in strong interactions to the observation of an unexpectedly large TeV photon flux from astrophysical sources, at distances where the strong absorption by the intergalactic medium should make the signal very dim. In this latter condition, which is the focus of this review, a possible explanation is that TeV photons convert to ALPs in the presence of strong and/or extended magnetic fields, such as those in the core of galaxy clusters or around compact objects, or even those in the intergalactic space. This mixing affects the observed γ-ray spectrum of distant sources, either by signal recovery or the production of irregularities in the spectrum, called ‘wiggles’, according to the specific microscopic realization of the ALP and the ambient magnetic field at the source, and in the Milky Way, where ALPs may be converted back to γ rays. ALPs are also proposed as candidate particles for the Dark Matter. Imaging Atmospheric Cherenkov telescopes (IACTs) have the potential to detect the imprint of ALPs in the TeV spectrum from several classes of sources. In this contribution, we present the ALP case and review the past decade of searches for ALPs with this class of instruments.
Jet-Induced Feedback in the [O III] Lines of Early Evolution Stage Active Galactic Nuclei
Authors: Berton Marco , Järvelä Emilia
Published: June 2021

It is well known that active galactic nuclei (AGN) show various forms of interaction with their host galaxy, in a number of phenomena generally called AGN feedback. In particular, the relativistic plasma jets launched by a fraction of AGN can strongly affect their environment. We present here a study of the [O III] λλ4959,5007 lines in a diverse sample of early evolution stage AGN–specifically narrow-line Seyfert 1 galaxies. Radio imaging observations of all of the sources enable a division to jetted and non-jetted sources, and exploiting this we show that the ionized gas properties are significantly influenced by the presence of the jets, as we often find the [O III] lines (blue-)shifted with respect to their restframe wavelength. We also show how the radio morphology and the radio spectral index do not seem to play a role in the origin of the [O III] shifts, thus suggesting that the source inclination is not relevant to the lines displacement. We do not find a strong relation between the [O III] line properties and the bolometric luminosity, suggesting that within our sample radiatively driven outflows do not seem to have a significant contribution to the [O III] line kinematics. We finally suggest that [O III] shifts may be a good proxy to identify the presence of relativistic jets. Additional studies, especially with integral-field spectroscopy, will provide a deeper insight into the relation between jets and their environment in early evolution stage AGN.
The Many Faces of Innate Immunity in SARS-CoV-2 Infection
Authors: Hanan Nicholas , Doud Ronnie L. , Park In-Woo , Jones Harlan P. , Mathew Stephen O.
Published: June 2021

The innate immune system is important for initial antiviral response. SARS-CoV-2 can result in overactivity or suppression of the innate immune system. A dysregulated immune response is associated with poor outcomes; with patients having significant Neutrophil-to-Lymphocyte ratios (NLR) due to neutrophilia alongside lymphopenia. Elevated interleukin (IL)-6 and IL-8 leads to overactivity and is a prominent feature of severe COVID-19 patients. IL-6 can result in lymphopenia; where COVID-19 patients typically have significantly altered lymphocyte subsets. IL-8 attracts neutrophils; which may play a significant role in lung tissue damage with the formation of neutrophil extracellular traps leading to cytokine storm or acute respiratory distress syndrome. Several factors like pre-existing co-morbidities, genetic risks, viral pathogenicity, and therapeutic efficacy act as important modifiers of SARS-CoV-2 risks for disease through an interplay with innate host inflammatory responses. In this review, we discuss the role of the innate immune system at play with other important modifiers in SARS-CoV-2 infection.
A Senescence-Like Cellular Response Inhibits Bovine Ephemeral Fever Virus Proliferation
Authors: Zeng Yu-Jing , Hsu Min-Kung , Tsai Chiao-An , Chu Chun-Yen , Wu Hsing-Chieh , Wang Hsian-Yu
Published: June 2021

During industrial-scale production of viruses for vaccine manufacturing, anti-viral response of host cells can dampen maximal viral antigen yield. In addition to interferon responses, many other cellular responses, such as the AMPK signaling pathway or senescence-like response may inhibit or slow down virus amplification in the cell culture system. In this study, we first performed a Gene Set Enrichment Analysis of the whole-genome mRNA transcriptome and found a senescence-like cellular response in BHK-21 cells when infected with bovine ephemeral fever virus (BEFV). To demonstrate that this senescence-like state may reduce virus growth, BHK-21 subclones showing varying degrees of a senescence-like state were infected with BEFV. The results showed that the BHK-21 subclones showing high senescence staining could inhibit BEFV replication while low senescence-staining subclones are permissive to virus replication. Using a different approach, a senescence-like state was induced in BHK-21 using a small molecule, camptothecin (CPT), and BEFV susceptibility were examined. The results showed that CPT-treated BHK-21 is more resistant to virus infection. Overall, these results indicate that a senescence-like response may be at play in BHK-21 upon virus infection. Furthermore, cell clone selection and modulating treatments using small molecules may be tools in countering anti-viral responses.
Knowledge, Attitudes, and Practices (KAP) toward the COVID-19 Vaccine in Oman: A Pre-Campaign Cross-Sectional Study
Authors: Al-Marshoudi Sabria , Al-Balushi Haleema , Al-Wahaibi Adil , Al-Khalili Sulien , Al-Maani Amal , Al-Farsi Noura , Al-Jahwari Adhari , Al-Habsi Zeyana , Al-Shaibi Maryam , Al-Msharfi Mahfoodh , Al-Ismaili Ahlam , Al-Buloshi Hood , Al-Rawahi Bader , Al-Barwani Khalifa , Al-Abri Seif
Published: June 2021

Oman is globally acknowledged for its well-structured immunization program with high vaccination coverage. The massive spread of misinformation brought on by the COVID-19 pandemic, as well as the easy access to various media channels, may affect acceptance of a vaccine, despite the inherent trust in the local system. This cross-sectional study evaluated the knowledge, attitudes, and practice (KAP) in Oman toward COVID-19 vaccines. It included 3000 randomly selected adults answering a structured questionnaire via telephone. Participants were 66.7% Omani, 76% male, and 83.7% without comorbidities. Their mean age was 38.27 years (SD ± 10.45). Knowledge of COVID-19′s symptoms, mode of transmission, and attitudes toward the disease was adequate; 88.4% had heard of the vaccine, 59.3% would advise others to take it, 56.8% would take it themselves, and 47.5% would take a second dose. Males (CI = 2.37, OR = (2.00–2.81)) and Omani (CI = 1.956, OR = (4.595–2.397)) were more willing to be vaccinated. The history of chronic disease, source of vaccine knowledge, and education level were factors that affected the willingness to accept the vaccine. The Omani community’s willingness to take the COVID-19 vaccine can be enhanced by utilizing social media and community influencers to spread awareness about the vaccine’s safety and efficacy.
Transmission of Vaccination Attitudes and Uptake Based on Social Contagion Theory: A Scoping Review
Authors: Konstantinou Pinelopi , Georgiou Katerina , Kumar Navin , Kyprianidou Maria , Nicolaides Christos , Karekla Maria , Kassianos Angelos P.
Published: June 2021

Vaccine hesitancy is a complex health problem, with various factors involved including the influence of an individual’s network. According to the Social Contagion Theory, attitudes and behaviours of an individual can be contagious to others in their social networks. This scoping review aims to collate evidence on how attitudes and vaccination uptake are spread within social networks. Databases of PubMed, PsycINFO, Embase, and Scopus were searched with the full text of 24 studies being screened. A narrative synthesis approach was used to collate the evidence and interpret findings. Eleven cross-sectional studies were included. Participants held more positive vaccination attitudes and greater likelihood to get vaccinated or vaccinate their child when they were frequently exposed to positive attitudes and frequently discussing vaccinations with family and friends. We also observed that vaccination uptake was decreased when family and friends were hesitant to take the vaccine. Homophily—the tendency of similar individuals to be connected in a social network—was identified as a significant factor that drives the results, especially with respect to race and ethnicity. This review highlights the key role that social networks play in shaping attitudes and vaccination uptake. Public health authorities should tailor interventions and involve family and friends to result in greater vaccination uptake.
Phylogenetic Structure and Sequential Dominance of Sub-Lineages of PRRSV Type-2 Lineage 1 in the United States
Authors: Paploski Igor A. D. , Pamornchainavakul Nakarin , Makau Dennis N. , Rovira Albert , Corzo Cesar A. , Schroeder Declan C. , Cheeran Maxim C-J. , Doeschl-Wilson Andrea , Kao Rowland R. , Lycett Samantha , VanderWaal Kimberly
Published: June 2021

The genetic diversity and frequent emergence of novel genetic variants of porcine reproductive and respiratory syndrome virus type-2 (PRRSV) hinders control efforts, yet drivers of macro-evolutionary patterns of PRRSV remain poorly documented. Utilizing a comprehensive database of >20,000 orf5 sequences, our objective was to classify variants according to the phylogenetic structure of PRRSV co-circulating in the U.S., quantify evolutionary dynamics of sub-lineage emergence, and describe potential antigenic differences among sub-lineages. We subdivided the most prevalent lineage (Lineage 1, accounting for approximately 60% of available sequences) into eight sub-lineages. Bayesian coalescent SkyGrid models were used to estimate each sub-lineage’s effective population size over time. We show that a new sub-lineage emerged every 1 to 4 years and that the time between emergence and peak population size was 4.5 years on average (range: 2–8 years). A pattern of sequential dominance of different sub-lineages was identified, with a new dominant sub-lineage replacing its predecessor approximately every 3 years. Consensus amino acid sequences for each sub-lineage differed in key GP5 sites related to host immunity, suggesting that sub-lineage turnover may be linked to immune-mediated competition. This has important implications for understanding drivers of genetic diversity and emergence of new PRRSV variants in the U.S.
Prophylactic Multi-Subunit Vaccine against Chlamydia trachomatis: In Vivo Evaluation in Mice
Authors: Lanfermann Christian , Wintgens Sebastian , Ebensen Thomas , Kohn Martin , Laudeley Robert , Schulze Kai , Rheinheimer Claudia , Hegemann Johannes H. , Guzmán Carlos Alberto , Klos Andreas
Published: June 2021

Chlamydia trachomatis is the most frequent sexually-transmitted disease-causing bacterium. Urogenital serovars of this intracellular pathogen lead to urethritis and cervicitis. Ascending infections result in pelvic inflammatory disease, salpingitis, and oophoritis. One of 200 urogenital infections leads to tubal infertility. Serovars A–C cause trachoma with visual impairment. There is an urgent need for a vaccine. We characterized a new five-component subunit vaccine in a mouse vaccination-lung challenge infection model. Four recombinant Pmp family-members and Ctad1 from C. trachomatis serovar E, all of which participate in adhesion and binding of chlamydial elementary bodies to host cells, were combined with the mucosal adjuvant cyclic-di-adenosine monophosphate. Intranasal application led to a high degree of cross-serovar protection against urogenital and ocular strains of C. trachomatis, which lasted at least five months. Critical evaluated parameters were body weight, clinical score, chlamydial load, a granulocyte marker and the cytokines IFN-γ/TNF-α in lung homogenate. Vaccine antigen-specific antibodies and a mixed Th1/Th2/Th17 T cell response with multi-functional CD4+ and CD8+ T cells correlate with protection. However, serum-transfer did not protect the recipients suggesting that circulating antibodies play only a minor role. In the long run, our new vaccine might help to prevent the feared consequences of human C. trachomatis infections.
Livestock indicators of broiler chickens rearing when use in feeding of sweet chestnut wood extract
Authors: Buryakov N. P. , Zaikina A. S. , Buryakova M. A. , Shaaban M. , Zagarin A. Yu.
Published: June 2021

The intensifi cation of modern industrial poultry farming as the most progressive and dynamically developing branch of agriculture aimed at raising productivity and increasing production volumes, inevitably leads to numerous problems related to poultry health. One of the most common ways to solve this problem is to use antibacterial drugs. The results of scientifi c and economic experiment on the use of the phytobiotic additive “Farmatan VSO (Butitan)” in feeding broiler chickens of cross Cobb-500 have been provided in the article. The inclusion in the poultry diet of the phytobiotic “Farmatan VSO (Butitan)” in the amount for compound feed Start 800 g/t, Growth and Finish – 400 g/t leads to increase in the live weight of broilers by 3,0 % compared to the control group. At the same time the average daily gain of live weight in the 4th experimental group was 73 g, which was by 2,8 % more than in the control group. The use of phytobiotic additives in the feeding of broiler chickens contributes to the highest livability of poultry (98,1 %). It has been found that the best indicators for feed expenditures have been noted in the 3rd and 4th experimental groups 1,47 and 1,48 kg, which were 3,3 and 2,6 % lower than in the control group. Thus, the authors have found that the highest live weight, average daily gain, livability and lowest expenditures of feed per unit of production diff ered in broiler chickens of 4th experimental group where in the compound feed antibiotic Flavomycin has been replaced on phytobiotic feed additive “Farmatan VSO (Butican)” in the compound feed Start 800 g/t, Growth and Finish- 400 g/t. Production testing of the use of “Farmatan VSO (Butitan)” has shown the high eff ectiveness of phytobiotics as a mean of replacing the feed antibiotic and improving the livestock indicators of broiler chickens rearing.
The productivity of first-calf heifers and technological properties of milk when use in rations of linseed and rapeseed press cakes
Authors: Berezkina G. Yu. , Strelkov I. V.
Published: June 2021

Summary. Practical interest at the present stage in feeding highly productive cows is the use of fl axseed and rapeseed press cakes, which are sources of energy, high-grade protein and polyunsaturated fatty acids. Rapeseed and linseed press cakes are excellent protein feed for cattle. In concentrates for this animal species they may be the only high-protein components. The purpose of the work was to carry out comprehensive research on fi rst-calf heifers productivity traits, milk quality and its technological properties when using linseed and rapeseed press cakes in their rations. The research has been carried out in JSC “Uchkhoz Iyulskoe of Izhevsk State Agricultural Academy”. The object of research was fi rst-calf heifers of Black-and-White breed. In order to conduct research, four groups of fi rst-calf heifers have been formed – a control group and three experimental groups of 12 animals in each group. A comprehensive evaluation of productive traits, milk quality, its technological properties, as well as the quality of dairy products (cheese, cottage cheese, yogurt) when used in fi rst-calf heifers feeding various cakes (linseed and rapeseed). The lowest prime-cost of 1 kg of milk has been obtained with the simultaneous use of linseed and rapeseed cakes of 14,0 rubles, which was less than in the control group by 2,1 rubles, the 1st experimental group by 1,7 rubles and the 2nd experimental group by 0,7 rubles. The largest gross profi t from milk sales has been received in the 3rd and 2nd experimental groups of 55 744 and 48 202 rubles, respectively. The level of profi tability in all groups was high and ranged from 36,6 % in the control group and up to 57,1 % in the 3rd experimental group. The result of the conducted researches has proved the effi ciency when feeding lactating fi rst-calf heifers of Black-and-White breed of rapeseed press cake and a mixture of rapeseed and linseed press cake in 1 : 1 ratio when replacing 30 % (on crude protein content) of sunfl ower press cake in their rations.
Obtaining and effective use of functional feed additives in poultry farming
Authors: Petenko A. I. , Aniskina M. V.
Published: June 2021

In order to increase the effectiveness of the poultry farming it is mandatory to use different feed additives that contain various nutrients and biologically active substances. The inclusion of feed additives in the feed will help to significantly enrich the diets of birds of all species. The purpose of the work was to develop a biotechnology for the production and use of feed bio-products based on Lactobacillus acidophilus and Saccharomyces cerevisiae strains, hydroponic green seedlings and various functional fillers to evaluate the effectiveness of its use as a symbiotic additive with vitamin, acidifying, enzyme and sorption activity in the rearing of quails. The technology of solid-phase cultivation of Lactobacillus acidophilus and Saccharomyces cerevisiae on wheat seedlings of Yuka variety has been developed. A technology for producing a hydroponic layer of seedlings using various types of water has been developed. It has been found when assessing the digestibility of feed nutrients that the digestibility of raw fiber in the 2nd experimental group was higher than in the control group by 3,7%. It has been noted the increase of digestibility of crude protein by 3,5% in the 2nd experimental group and 1,0% in the 3rd experimental group. It has been established that the use of the obtained bio-product in the rearing of quails allows to increase the revenue from the sale of quail meat. Thus in the 2nd experimental group revenue has been increased by 8,42%, which amounted to 4137,23 rubles against 3815,86 rubles in the control group. In the 3rd experimental group the revenue has been increased by 10,14% and amounted to 4202,80 rubles.
Evaluation of spring soft wheat varieties and zonal features of seed production in the Altai Territory
Authors: Zharkova S. V. , Dvornikova E. I.
Published: June 2021

One of the leading grain crops in Russia is spring wheat. This is a strategic food crop of our country; it is also an important component in the structure of forage crops for monogastric animals, such as pigs and poultry. The purpose of the research was to evaluate spring soft wheat varieties of different maturity groups in order to identify genotypes as the starting material for obtaining varieties adapted to the cultivation zones, and to determine the areas optimal for the production of grain for seed purposes with high quality indicators. Field studies have been carried out in three ecologically different zones: the Priobskaya zone, the Prialtaiskaya zone, and the Prisalairskaya zone. Under the conditions of the Altai Territory, genetic sources of spring soft wheat have been identifi ed for different soil and climatic parameters of the study zones, the use of which will allow obtaining high-yielding varieties with high quality grain for specific cultivation conditions. The variability of the indicators of the characteristics of varieties in three ecologically different zones has been determined. The indicators of adaptability and stability of spring soft wheat varieties in different zones of cultivation have been determined. The optimal zones for conducting breeding work and seed production of varieties have been identifi ed. New scientific data on the quality parameters of seed grain in various agro-climatic zones of the Altai Territory have been obtained. The share of the contribution of the factors “variety”, “year”, “environment” to the variability of grain quality characteristics has been established. The economic efficiency of cultivating varieties of spring soft wheat for the production of high-quality seed grain has been determined.
Fundação Helena Antipoff e o polo de educação integral “Escola de Helena”
Authors: Magalhães Cláudio , Souza Elisabeth Gonçalves de , Quiossa Amanda Sangy
Published: June 2021

Discutimos, neste texto, o processo de implementação de um Polo de Educação Integral e Integrada, na região metropolitana de Belo Horizonte (MG). Nosso objetivo era compreender quais as contribuições e os limites gerados pela implementação de um Polo de Educação Integral na Fundação Helena Antipoff para atendimento de alunos de quatro escolas situadas no município de Ibirité (MG). Buscamos investigar, a partir de entrevistas com gestores, professores e oficineiros envolvidos no processo de implementação do polo, quais os obstáculos e aprendizados podem advir de uma experiência como esta.
¿Quién elige mi dieta informativa? La datificación automatizada de personas en el ambiente digital
Authors: Vidal-Sepúlveda Martha , Olivares-Rodríguez Cristian
Published: June 2021

Desde la reflexión teórica, este trabajo analiza cómo la tecnología deviene en un dispositivo psicopolítico que configura el nuevo ambiente digital. Primero, como un espacio de flujo de información que otorga sentido a nuestra relación con el mundo y, en una segunda instancia, en la formación de nuestra identidad digital en tanto sujetos en desarrollo que se significan en la experiencia digital. En este contexto, los motores de búsqueda, como software cultural, ofrecen una dieta informativa personalizada y brindan respuestas a consultas por medio de resultados sesgados, elaborados a partir de los patrones de comportamiento de los sujetos y desmitificando, de este modo, el acceso global a la información.
The Warming Climate Aggravates Atmospheric Nitrogen Pollution in Australia
Authors: Sun Yi , Gu Baojing , van Grinsven Hans J. M. , Reis Stefan , Lam Shu Kee , Zhang Xiuying , Chen Youfan , Zhou Feng , Zhang Lin , Wang Rong , Chen Deli , Xu Jianming
Published: June 2021

Australia is a warm country with well-developed agriculture and a highly urbanized population. How these specific features impact the nitrogen cycle, emissions, and consequently affect environmental and human health is not well understood. Here, we find that the ratio of reactive nitrogen (

N

r

) losses to air over losses to water in Australia is 1.6 as compared to values less than 1.1 in the USA, the European Union, and China. Australian

N

r

emissions to air increased by more than 70% between 1961 and 2013, from 1.2 Tg N yr
-1
to 2.1 Tg N yr
-1
. Previous emissions were substantially underestimated mainly due to neglecting the warming climate. The estimated health cost from atmospheric

N

r

emissions in Australia is 4.6 billion US dollars per year. Emissions of

N

r

to the environment are closely correlated with economic growth, and reduction of

N

r

losses to air is a priority for sustainable development in Australia.
COMMUNICATIVE AND LEGAL NIHILISM AS A PHENOMENON DISCREDITING THE COMMUNICATIVE-LEGAL CULTURE OF YOUTH: SOCIOLOGICAL ANALYSIS
Authors: AYVAZYAN Oksana O. , KUKUSHKINA Aida A.
Published: June 2021

The article is devoted to the study and analysis of young people's ideas about communicative and legal nihilism and ways to overcome it as factors that discredit the communicative and legal culture of young people. The paper analyzes various concepts that reveal the foundations of the definitions of "nihilism", "communicative nihilism" and" legal nihilism". Thus, it is noted that nihilism is a socio-cultural negative phenomenon based on the denial of everything that exists, or some aspects of life (legal, communicative, cultural, etc.). Based on this, the article points out that among the main reasons for the manifestation of the nihilistic attitude are: incorrect interpretation and interpretation of the norms of law and the rules of communication, unwillingness to master the communicative and legal foundations, as well as distrust of the legislation. At the same time, taking into account these reasons for the nihilistic attitude, which lead to the inability to understand the laws, communicative nihilism is manifested, which is "ideological passivity", "communicative skepticism", which is expressed in discrediting the oral and written statements and actions of other persons and authorities. The article also describes the results of the author's sociological survey, which indicate the presence of a high degree of nihilistic manifestations in society in relation to legal norms (laws) and rules for the implementation of communicative interaction. Such destructive tendencies cause concern for our bright future, since nihilistic trends destroy values, moral ideals, in general, and in particular the process of forming a communicative and legal culture of young people, inspired by the spirit of tolerance, tolerance for everything different. In conclusion, the author draws conclusions about the importance and necessity of preventing communicative and legal nihilistic manifestations in the youth environment, and also indicates the mechanisms for their prevention.
MORINGA OLEIFERASEBAGAI MAKANAN PENDAMPING ASI PADA BALITA STUNTING
Authors: Abidin Urwatil Wusqa , Liliandriani Andi
Published: June 2021

Specific nutrition intervention efforts for short children under five are focused on the 1,000 First Day of Life (HPK) group. Consuming Moringa Oliferadi Polewali Mandar Regency is one of the efforts taken to accelerate the growth and development of toddlers because it is found in abundance of nutrients, such as: vitamin A, vitamin C, calcium, and iron. This research is expected to be an alternative for families with stunting toddlers in order to provide adequate nutritional intake by utilizing Moringa Olifera. This research uses a Quasi Experimental design, which is an experiment that has treatment, impact measurement, experimental units but does not use random assignments to create comparisons. in order to infer changes caused by treatment. The design used was one group pre test and post test design, which is a study by comparing the nutritional status of toddlers before the intervention and after the intervention. The results showed that the Sig. (2-tailed) both variables equal to 0.000. This value is <0.05, so it can be concluded that there is an effect of giving Moringa Oliferar powder on body weight (BW) and height (TB) of toddlers. Because of this, giving Moringa Olifera powder, can increase BW and TB in toddlers.
FREKUENSI PEMERIKSAAN ANC BERHUBUNGAN DENGAN PREEKLAMPSIA
Authors: Lina fiitriani Lina fiitriani , Diana Ros
Published: June 2021

The gestation period starts from conception until the birth of the fetus. The normal duration of pregnancy is 280 days (40 weeks or 9 months and 7 days) counting from the first day of the last menstruation. Pregnancy is divided into 3, the first trimester starts from conception until 3 months, the second trimester starts from the fourth month to 6 months, the third trimester is from the seventh month to 9 months. Preeclampsia is a disease characterized by hypertension, proteinuria and edema that occurs during pregnancy. or up to 48 hours postpartum. This study aims to determine the frequency of ANC examinations with preeclamptic. The research method used was analytic survey research design with a cross sectional approach. Data collection techniques. Data collection in this study used a questionnaire sheet. The technique used in this study was purposive sampling. The data analysis used was univariate and bivariate analysis and the statistical test used was Chi Square. The significance of the relationship between the two variables is p = 0.000, p = 0.002 <α 0.05, this means that Ha is accepted and Ho is rejected, so there is a relationship between the frequency of ANC examinations and preeclamptic
Strengthening ICT competencies in Higher Secondary Education teachers to improve teaching practice in the health emergency of Covid 19
Authors: Gómez-Campos Sinahí Gabriela , Granados-Magaña Javier Alejandro , Zepeda-Martíne Gabriel , Fregoso Hernández Carlos Baltazar
Published: June 2021

SARS-CoV-2 has brought enormous challenges and challenges to the global education system. The crisis has demonstrated the vulnerability of current educational models, their rapid and accelerated spread throughout the world has caused an unprecedented impact on the multidimensional development of the population. This brought as a possible solution the implementation and accelerated adaptation of working at a distance with approaches oriented to the use of Information and Communication Technologies (ICT), The project proposed as an objective to evaluate the knowledge and skills management of upper secondary teachers (northern part of the state of Nayarit), before and during the COVID-19 pandemic. The study is a non-experimental descriptive transectional study with a sample of teachers from the three Preparatory Academic Units of the UAN. A non-probability convenience sampling was used using two pre-designed questionnaires through the Google Forms platform, one at the beginning and the other at the end. With this project it was detected that no teacher uses digital tools at the beginning for online classes.
Las fiestas del vino en La Mancha: folclore e identidad
Authors: Negrín de la Peña José Antonio
Published: June 2021

El presente trabajo profundiza en el estudio de las tradicionales fiestas que tienen de alguna u otra manera a la vid y al vino como protagonistas en Castilla-La Mancha, España. Desde un punto de vista geográfico es necesario fijar el escenario del que se habla; su ubicación en el hemisferio norte y sus características orográficas y climáticas hacen que este entorno se rija por un determinado calendario agrícola, y con él, de festividades en consonancia a la realización de las tareas propias del cultivo y cosecha de la vid. En segundo lugar, detallar los determinantes históricos: el hecho de ser una tierra visitada por distintas culturas y civilizaciones ha marcado, con sus diferentes improntas, determinadas características antropológicas en su forma general de afrontar la vida por parte de sus habitantes y, por ende, en la manera de celebrar cualquier situación propicia a la fiesta. Finalmente, la unión de estas perspectivas junto a los protagonistas —la vid y el vino—, todo enmarcado en un ambiente de fiesta, mostrará algunos ejemplos de cómo geografía, historia y vitivinicultura conforman una amalgama de realidades antropológicas que identifica un territorio, lo hace distinto y… amable.
La Fiesta del Chacolí de Doñihue: análisis histórico y cultural de una celebración (1975-2020)
Authors: Mujica Fernández Fernando , Castro San Carlos Amalia
Published: June 2021

Examinamos el origen y desarrollo de la Fiesta del Chacolí de Doñihue, en la Región de O’Higgins, desde su primera versión en 1975 hasta la actualidad. Se constata la existencia de tres momentos diferentes de la celebración, con cambio de foco y significado, desde una fiesta cívica asociada a un tipo colonial de legitimación sacralizante (1975-1977), pasando por un periodo donde la figura del chacolí, principalmente, a través de la exclusión de los chacoliceros, perdió peso (1978-2016) y un tercer momento (2017-2019) en que la fiesta se reconfigura por intervención externa y adquiere tintes de fiesta de carácter productivo, asociado a la vendimia en torno a la figura recuperada del chacolí. El artículo se pregunta el porqué de la oscilación de la figuración del chacolí en la fiesta que lleva su nombre. Se concluye que ello estuvo relacionado con el carácter real de la fiesta y lo equívoco del nombre: la fiesta fue creada para hacer honor al aniversario comunal, no al chacolí. Para efectuar el análisis se utiliza como fuente la prensa de la Región de O’Higgins, desde 1975 hasta 2020, así como material fotográfico referencial de los festejos realizados entre 2017 y 2019.
Sustentabilidad en fincas productoras de café (Coffea arabica L.) convencional y orgánica en el Valle del Alto Mayo, Región San Martín, Perú
Authors: Rojas Ruiz Richard , Alvarado Huamán Leonel , Borjas Ventura Ricardo , Carbonell Torres Elsa , Castro Cepero Viviana , Julca Otiniano Alberto
Published: June 2021

Evaluar la sustentabilidad de las fincas productoras de café con técnicas convencional y orgánica en el valle del Alto Mayo, Región San Martín, Perú, es el objetivo del estudio. Para la investigación seleccionamos fincas de producción orgánica, pertenecientes a la Cooperativa Agraria Cafetalera Fe y Esperanza Valle del Alto Mayo (CACFEVAM) y de producción convencional, pertenecientes a la Asociación de Productores Agropecuarios El Emigrante (APAEM). La muestra (n=56), estuvo constituida por 26 productores orgánicos de CAFEVAM y 30 productores convencionales de APAEM. Para la toma de datos se usaron encuestas con preguntas relacionadas a los indicadores previamente seleccionados, según la metodología MESMIS. Para que una finca sea considerada sustentable, el promedio de los 17 indicadores debía tener un valor igual o mayor a 5 (en escala 2 a 10). Los resultados muestran que las fincas productoras de café orgánico en el Valle del Alto Mayo (San Martín), son más sustentables que las de producción convencional, aunque existen “puntos críticos” en los que es necesario trabajar para aumentar la sustentabilidad y hacerla duradera en el tiempo.
Cultivo de plátano en Honduras: estudio de caso con pequeños agricultores del municipio de Cane
Authors: Marcía Hernández Delmer Roberto
Published: June 2021

Según estudios, en los últimos años ha decrecido la participación de granos básicos —maíz y frijol— al Producto Interno Bruto Nacional, resultado de la caída de los precios agrícolas y del aumento en costos de producción. Ello obliga a campesinos y pequeños agricultores a abandonar el cultivo de granos básicos y buscar otras estrategias: optan por diversificar su producción agrícola, apostando por cultivos de mayor productividad y rentabilidad. En tal sentido, el objetivo del estudio fue develar el proceso de producción del plátano, principal cultivo que tienen los pequeños agricultores del municipio de Cane, en La Paz, Honduras. Los resultados del estudio demuestran lo siguiente: (1) los pequeños agricultores han diversificado la producción agrícola; (2) el plátano ha reemplazado el cultivo de granos básicos como principal actividad económica agrícola, y (3) en el proceso de producción se han incorporado nuevas técnicas y tecnologías, así como una variedad de insumos, con el fin de elevar la productividad y rentabilidad de los cultivos. A partir del análisis de estos resultados se concluye que en Cane se está desarrollando una agricultura con características distintas a épocas anteriores.
A Festa da Mandioca brasileira nas imagens virtuais do Facebook
Authors: Rocha Ariza Maria
Published: June 2021

Reconhecemos as permanências e/ou câmbios na comida tipica a base de mandioca e os saberes dos “mandioqueiros” na Festa da Mandioca do Brasil, mediante imagens virtuais de Facebook. É utilizada a história cultural da alimentação como fundamento teórico, e a metodologia está baseada na investigação exploratória bibliográfica sobre a “mandiocultura”. Também foi implementada uma investigação documental com amostragem intencional como perspectiva de análise empírico de imagens virtuais disponíveis no site da rede social Facebook. A trajetória investigativa permite acompanhar o legado histórico da mandioca, desde os indígenas ancestrais até os pequenos agricultores e a inserção do turismo, nas diversas transformações que acontecem en torno ao alimento e sua implicância cultural, entre as quais encontramos a a Festa da Mandioca, indo do contexto familiar de antigamente até os grandes espetáculos locais na atualidade.
Fiesta como espacio decolonial. El Tinkunaco en Argentina
Authors: Carrera Julián
Published: June 2021

El presente artículo propone la aplicación del enfoque decolonial al estudio de las fiestas populares latinoamericanas. Para ello, recorre las distintas perspectivas que analizan la relación entre las tradiciones locales y el proyecto moderno-colonial que se inicia con la invasión europea del continente y continúa vigente en la actualidad con el fenómeno denominado globalización. A lo largo de ese tiempo se han producido distintos procesos de resistencia, acomodación e hibridación generados por la tensión entre las dinámicas globales y las prácticas e imaginarios de los grupos colonizados; al respecto, la perspectiva decolonial nos ofrece algunas herramientas analíticas novedosas para observar estos fenómenos, las cuales intentamos emplear en un estudio de caso, el Tinkunaco riojano en la Argentina.
Feria del Gallo Ornamental: patrimonialización rural a favor de la cultura campesina
Authors: Corrales Mariana
Published: June 2021

Estudiamos la Feria del Gallo Ornamental y el Encuentro CantaGallo como un proceso de patrimonialización rural a favor de la cultura campesina. La focalización del evento permitió analizar el rol de la autogestión y los procesos de apropiación, los cuales posibilitan visibilizar y valorizar el territorio. El concurso del gallo y su folclor se transforman en una estrategia que integra iniciativas colectivas basadas en saberes locales y en la expresión cultural, donde encontramos mecanismos de reivindicación por parte de los habitantes, junto a un reconocimiento urbano. Como resultado, la producción cultural, económica y ambiental del evento se convierte en una innovación territorial.