bluuebunny/crossref_metadata_2025 huggingface dataset:
Strength analysis of linear-elastic frame structures under pulse-periodic loads
Authors: Grebenyuk G. I. , Veshkin M. S. , Maksak V. I. , Zhilina D. A.
Published: April 2024

Pulse-periodic loads on structures are one of the most dangerous for the their stress-strain state under dynamic load.Purpose: The aim of the work is to analyze the dynamic deformation of linear-elastic frame structures under pulse-periodic loads.Approach: It is found that a simple frame structure with additional concentrated masses affects the loading parameters (length, shape and pulse frequency). The analysis is given to physical characteristics of the deformed structure and its dynamic response under the pulse-periodic load.Research findings: Prerequisites are formulated for an unfavorable (from the position of VAT parameters) combination of the load and structural parameters.
Classicism in the Saratov region
Authors: Negulyaeva T. V. , Dudina E. S. , Maiskova M. D.
Published: April 2024

Saratov’s classicism is the first stage of its capital construction. It plays a major role in the formation of the architectural environment of the historical center. Classicism also influences the formation of the central part of the city. The article considers the processes of organization and self-organization of buildings in Saratov during the period of Classicism.Purpose: Identification of classicism buildings in Saratov.Methodology/approach: The main levels of scientific knowledge are accepted: a theoretical method involving the study of documents describing the architecture of classicism, a practical method to determine the elements of the environment, their harmony, and the systems analysis of these documents.Research findings: Regional properties of Saratov are studied for the period of classicism.Value: A study of harmony in the architectural environment of the historical center Saratov.
Purism in creative activity of Jeanneret-Gree (Le Corbusier)
Authors: Polyakov E. N. , Polyakova O. P.
Published: April 2024

The paper is devoted to purism (Latin purus − "pure, strict"), the second creative direction in the design and social activity of S.-E. Jeanneret-Gree (Le Corbusier, 1887−1965), the outstanding French architect. It is one of the most popular trends in modern painting and architecture in the early 20th century.The paper considers this style in detail. The most striking elements of French purism were firstly tested in the design of the villa belonged to Raul Albert La Roche (1925−1928), a Swiss businessman and collector of paintings.
Competing risks analysis of engineering system failure based on nonparametric prediction
Authors: Kurasov O. A. , Burkov P. V.
Published: April 2024

Purpose: The aim of this work is to analyze competing risks of engineering system failure using nonparametric prediction.Methodology: Two statistical methods are used to tackle the problem of the pipeline integrity. Nonparametric prediction is applied in the first one. The main attention is paid to the possible failure of the pipeline section due to a specific threat in terms of competing risks. The second method contains the analysis of the entire pipeline system. The focus is on rupture incidents, that provides the real data on the lifecycle of the pipeline section.Research findings: Nonparametric prediction is used to analyze competing risks of the pipeline failure. The lower and upper probability boundaries and survivability functions and competing risks of the pipeline section failure are introduced for a future ground section of the pipeline, which can be failed as a result of rupture.
Creating a neuroanatomy education model with augmented reality and virtual reality simulations of white matter tracts
Authors: Gurses Muhammet Enes , Gökalp Elif , Gecici Neslihan Nisa , Gungor Abuzer , Berker Mustafa , Ivan Michael E. , Komotar Ricardo J. , Cohen-Gadol Aaron A. , Türe Uğur
Published: April 2024

OBJECTIVE

The utilization of digital technologies has experienced a notable surge, particularly in cases where access to cadavers is constrained, within the context of practical neuroanatomy training. This study evaluates augmented reality (AR)– and virtual reality (VR)–based educational models for neuroanatomy education.

METHODS

Three-dimensional models were created using advanced photogrammetry. VR- and AR-based educational models were developed by arranging these 3D models to align with the learning objectives of neurosurgery residents and second-year medical students whose cadaveric training was disrupted due to an earthquake in Turkey. Participants engaged with and evaluated the VR- and AR-based educational models, followed by the completion of a 20-item graded user experience survey. A 10-question mini-test was given to assess the baseline knowledge level prior to training and to measure the achievement of learning objectives after training.

RESULTS

Forty neurosurgery residents were trained with a VR-based educational model using VR headsets. An AR-based educational model was provided online to 200 second-year medical students for their practical neuroanatomy lesson. The average correct answer rates before the training were 7.5/10 for residents and 4.8/10 for students. These rates were significantly improved after the training to 9.7/10 for residents and to 8.7/10 for students (p < 0.001). Feedback from the users concurred that VR- and AR-based training could significantly enhance the learning experience in the field of neuroanatomy.

CONCLUSIONS

VR/AR-based educational models have the potential to improve education. VR/AR-based training systems can serve as an auxiliary tool in neuroanatomy training, offering a realistic alternative to traditional learning tools.
Analysis of bihemispheric language function in pediatric neurosurgical patients using repetitive navigated transcranial magnetic stimulation
Authors: Rosenstock Tizian , Schneider Heike , Neymeyer Mitra Lara , Becker Lena-Luise , Schulz Bettina , Tietze Anna , Hernáiz Driever Pablo , Kaindl Angela M. , Vajkoczy Peter , Picht Thomas , Thomale Ulrich-Wilhelm
Published: April 2024

OBJECTIVE

Language dominance in the developing brain can vary widely across anatomical and pathological conditions as well as age groups. Repetitive navigated transcranial magnetic stimulation (rnTMS) has been applied to calculate the hemispheric dominance ratio (HDR) in adults. In this study, the authors aimed to assess the feasibility of using rnTMS to identify language lateralization in a pediatric neurosurgical cohort and to correlate the preoperative rnTMS findings with the postoperative language outcome.

METHODS

A consecutive prospectively collected cohort of 19 children with language-associated lesions underwent bihemispheric rnTMS mapping prior to surgery (100 stimulation sites on each hemisphere). In addition to feasibility and adverse effects, the HDR (ratio of the left hemisphere to right hemisphere error rate) was calculated. The anatomical surgical site and postoperative language outcome at 3 months after surgery were assessed according to clinical documentation.

RESULTS

Repetitive nTMS mapping was feasible in all 19 children (mean age 12.5 years, range 4–17 years; 16 left-sided lesions) without any relevant adverse events. Thirteen children (68%) showed left hemispheric dominance (HDR > 1.1), and 2 children (11%) showed right hemispheric dominance (HDR < 0.9). In 4 children (21%), the bihemispheric error rates were nearly the same (HDR ≥ 0.9 and ≤ 1.1). Sixteen children underwent surgery (14 tumor/lesion resections and 2 hemispherotomies) and 3 patients continued conservative therapy. After surgery, 4 patients (25%) showed an improvement in language function, 10 (63%) presented with stable language function, and 2 (12.5%) experienced deterioration in language function. Of the 6 patients with right hemispheric language involvement, 4 (80%) had glial tumors, 1 (20%) had focal cortical dysplasia, and 1 (20%) experienced hypoxic brain injury. Children with right hemispheric language involvement (HDR ≤ 1.1) did not show any language deterioration postoperatively.

CONCLUSIONS

Bihemispheric rnTMS language mapping as a noninvasive mapping technique to assess lateralization of language function in the pediatric neurosurgical population is safe and feasible. Why relevant right hemispheric language function (HDR ≤ 1.1) was associated with postoperative unaltered language function needs to be validated in future studies. Bihemispheric rnTMS language mapping strengthens risk-benefit considerations prior to pediatric tumor/epilepsy surgery in language-associated areas.
Long-term efficacy of microendoscopic laminotomy for lumbar spinal stenosis in advanced degenerative spondylolisthesis with or without dynamic spinal instability: a propensity score–matching analysis
Authors: Murata Shizumasa , Nagata Keiji , Iwasaki Hiroshi , Hashizume Hiroshi , Minamide Akihito , Nakagawa Yukihiro , Tsutsui Shunji , Takami Masanari , Ishimoto Yuyu , Teraguchi Masatoshi , Iwahashi Hiroki , Murakami Kimihide , Taiji Ryo , Kozaki Takuhei , Kitano Yoji , Yoshida Munehito , Yamada Hiroshi
Published: April 2024

OBJECTIVE

In this study, the authors aimed to determine the mid- to long-term outcomes of microendoscopic laminotomy (MEL) for lumbar spinal stenosis (LSS) with degenerative spondylolisthesis (DS) and identify preoperative predictors of poor mid- to long-term outcomes.

METHODS

The authors retrospectively reviewed the medical records of 274 patients who underwent spinal MEL for symptomatic LSS. The minimum postoperative follow-up duration was 5 years. Patients were classified into two groups according to DS: those with DS (the DS+ group) and those without DS (the DS− group). The patients were subjected to propensity score matching based on sex, age, BMI, surgical segments, and preoperative leg pain visual analog scale scores. Clinical outcomes were evaluated 1 year and > 5 years after surgery.

RESULTS

Surgical outcomes of MEL for LSS were not significantly different between the DS+ and DS− groups at the final follow-up (mean 7.8 years) in terms of Oswestry Disability Index (p = 0.498), satisfaction (p = 0.913), and reoperation rate (p = 0.154). In the multivariate analysis, female sex (standard β −0.260), patients with slip angle > 5° in the forward bending position (standard β −0.313), and those with dynamic progression of Meyerding grade (standard β −0.325) were at a high risk of poor long-term outcomes.

CONCLUSIONS

MEL may have good long-term results in patients with DS without dynamic instability. Women with dynamic instability may require additional fusion surgery in approximately 25% of cases for a period of ≥ 5 years.
Barriers to overlapping complex and general spine surgery at a tertiary academic hospital
Authors: Baker Noah C. , Bowden Victor A. , DiGiorgio Anthony M. , Darbin Olivier E. , Menger Richard P.
Published: April 2024

OBJECTIVE

Policy concern and debate surround the concept of overlapping spine surgery. Overlapping surgery specifically refers to nonessential portions of the case or noncutting time overlap. This differs from concurrent surgery, in which critical portions of the procedure overlap. Here the authors explore the barriers for safe and efficient overlapping surgery in academic spinal deformity practice.

METHODS

Over a 24-month period, cases of spinal deformity, degenerative cases, anterior cervical discectomy and fusions (ACDFs), and laminectomy were reviewed for duration in operating room (OR) prior to surgery, duration of cutting time, duration in OR after surgery, turnover duration, and time delay from initial start time. Standard degenerative cases were referenced as 1–2 ACDFs as well as 1- to 2-level laminectomy surgery. The blocks of time between two consecutive cutting periods were investigated to determine the feasibility of overlapping an additional surgery. Specifically, the authors compared the blocks of time that include the postsurgery period, the turnover period, and the presurgery period to cutting periods.

RESULTS

One hundred twenty-six complex spinal deformity procedures and 85 degenerative cases (including 49 ACDFs and 36 laminectomies) from one center and one neurosurgeon were reviewed. These procedures were performed between September 2019 and December 2021 with a 3-month gap in military deployment. On average, the procedure’s duration for cases of deformity was 236.5 minutes, for cases of ACDFs it was 84 minutes, and for cases of laminectomies it was 105.5 minutes. The block of noncutting time while the patient was in the OR showed no difference from the surgical cut time. The turnover time between cases was 52.35 minutes. Of 100 cases scheduled as the first case of the day, 94 had a delay to the OR averaging 18.2 minutes.

CONCLUSIONS

The data in this study indicate that estimates for pre- and postsurgical times alone are not sufficient to allow for overlapping surgery. The average cut-time duration of ACDF was 84 minutes; the average presurgical time for deformity was 68 minutes. This highlights the critical analysis for further examination of optimal scheduling, on-time first start, turnover periods, and the orchestration of all members of the providing team to optimize the cutting time for safe and consistent implementation of overlapping spine surgery.
IMPLIKASI PEMEKARAN WILAYAH ATAU DAERAH OTONOMI BARU DI PAPUA
Authors: Gusprinadi Hanes
Published: April 2024

Abstract Autonomous region is a term used to refer to a region that has the authority to regulate its own regional affairs. Based on Article 1 number 12 of Law 23/2014, an Autonomous Region is defined as a legal community unit that has certain regional boundaries and can be in the form of a province, city and district. Decentralization is a form of handing over government authority by the central government to autonomous regions so that they can regulate and manage their government. In 2022, Papua will experience regional expansion, resulting in four new provinces.Keywords: New Autonomous Region, Decentralization, PapuaAbstrak Daerah otonom adalah istilah yang digunakan dalam menyebut suatu daerah yang memiliki wewenang dalam mengatur urusan daerahnya sendiri. Berdasarkan Pasal 1 angka 12 UU 23/2014, Daerah Otonom didefinisikan sebagai kesatuan masyarakat hukum yang mempunyai batas daerah tertentu dan dapat berupa provinsi, kota, dan kabupaten. Desentralisasi adalah suatu bentuk penyerahan wewenang pemerintahan oleh pemerintah pusat kepada daerah otonom agar bisa mengatur dan mengurus pemerintahannya. Pada tahun 2022, Papua mengalami pemekaran daerah, dimana menghasilkan empat provinsi baru.Kata kunci : Daerah Otonomi Baru, Desentralisasi, Papua
Ballet Art of Soviet Ukraine from the Late 1910s to the Early 1930s: Classical Performances, Modern Intentions, Socialist Realism Canon
Authors:   Serge Lifar Kyiv Municipal Academy of Dance, Kyiv, Ukraine, Kolomiiets Viacheslav
Published: April 2024

The article conceptualizes the development of ballet art in Soviet Ukraine from the late 1910s to the early 1930s. The active use of ballets of classical heritage (Corsair, Futile Warning, Swan Lake, etc.) in the repertoire of opera theaters of Kyiv, Kharkiv, Odesa and the penetration of modern features into the ballet stage (Flying Ballet) were demonstrated. It is noted that elements of modern dance were cultivated in the activities of private choreographic and theater studios. The collapse of modernism with the introduction of the method of socialist realism in art with a focus on ideology, nationalism, and partisanship is noted. It was concluded that the state of ballet art in Soviet Ukraine from the late 1910s to the early 1930s can be qualified as a transition from modernization intentions, which were not realized, to the gradual introduction of the socialist realist method of artistic creation as the only one officially recognized by the Soviet authorities.
Use of Hermetia illucens hermicompost in the technology of growing legume microgreens
Authors: Puhalsky J. V. , Loskutov S. I. , Sidorova V. R. , Yakubovskaya A. I. , Meshcheryakov D. D. , Kameneva I. A.
Published: April 2024

Relevance. The work describes the prospect of using black soldier fly zoohumus as an organic fertilizer to activate the growth of microgreens of non-traditional legume species, including small-seeded ones, and the prospects of reducing the dose of mineral fertilizers.

Methods. An experiment was carried out with a comparative study of changes in the morphometric and chemical parameters of plant growth at the full recommended dose of mineral fertilizers, and at 25% of their use, but with the addition of 1% liquid extract of zoohumus, also enriched with essential elements. The duration of the experiment was 21 days. The plants were grown in a closed grow tent, with intensive light culture and control of the internal microclimate of the working area.

Results. Among the six studied non-traditional legume species grown for microgreens, the most responsive to combined treatment with an organomineral complex was Onobrychis viciifolia. Trifolium rubens showed the worst result in terms of biomass. Analysis of changes in the profile distribution of essential elements in the resulting green biomass, carried out using inductively coupled plasma atomic emission spectroscopy (ICP-AES), revealed iron and zinc ions as potential targets associated with yield shortfalls in juvenile shoots. Since in global food systems these microelements are the most common nutrients noted for the manifestation of “hidden hunger”, especially among children under 5 years of age and women of childbearing age, when creating a nutritional biocomposition based on black soldier fly zoohumus for growing non-traditional types of legumes, further the emphasis should be on them. No significant differences were found in the number of macroelements.

Results. The results of the study confirmed the high efficiency of using humic fertilizers in conditions of low soil fertility and revealed the selective sensitivity of vegetable crops to humic preparations of various origins.
Review of researches and technologies applicable to digitalization of the process of assessing the exterior of meat and dairy animals
Authors: Yurochka S. S. , Khakimov A. R. , Pavkin D.  Yu. , Bazaev S. O. , Komkov I. V.
Published: April 2024

To increase the efficiency of livestock farming, scientists are developing information and communication technologies aimed at digitalizing the process of assessing the exterior of animals. This review should improve understanding of the development steps of systems applicable to the digitalization of animal conformation assessment using computer vision and deep learning neural networks. The search focused on several topics: computer vision systems; training datasets; image acquisition systems; deep learning models; neural networks for training; performance parameters and system evaluation. Machine vision is an innovative solution by combining sensors and neural networks, providing a non-contact way to assess livestock conditions as cameras can replace human observation. Two approaches are used to obtain three-dimensional images for digitalization tasks in animal husbandry: shooting animals using one 3D camera fixed in one place, and shooting from different points using several 3D cameras that record images of animals and individual parts of their bodies, such like an udder. The features extracted from the images, called dorsal features, are used as input to the models. The reviewed publications used a variety of deep learning models, including CNN, DNN, R-CNN, and SSD, depending on the task. Similarly, neural networks such as EfficientNet, ShapeNet, DeepLabCut and RefineDet have been mainly used for animal health monitoring, while GoogleNet, AlexNet, NasNet, CapsNet, LeNet and ERFNet are mainly used for identification purposes.
Comparative analysis of installations for heat treatment of non-food pulp raw materials by the influence of electrophysical factors
Authors: Voronov E. V. , Novikova G. V. , Mikhailova O. V. , Zaitsev P. V. , Prosviryakova M. V.
Published: April 2024

Relevance. The objectives of the work are to develop radio-hermetic installations and substantiate the effective design of the working chamber, which provides a comprehensive effect of electrophysical factors on non-food pulp raw materials to preserve feed value at reduced operating costs. Scientific tasks: 1) to develop installations with different designs of resonators; 2) to conduct a comparative analysis of the working chambers according to the main parameters; 3) to evaluate the technical and economic indicators of an effective installation in relation to the basic version.

Methods. The effect of electrophysical factors on raw materials is realized in resonators with magnetrons and frequency generators of pulse-modeled high-frequency oscillations of 110 kHz, where a bactericidal flux lamp serves as a high-potential electrode.

Results. Several continuous-flow radiohermetic installations with ultrahigh-frequency (microwave) power supply to non-standard resonators have been developed, inside which a complex effect of a high-intensity electric field, a bactericidal flow of UV rays and ozone is realized to reduce bacterial contamination of the product and neutralize odor during heat treatment of raw materials, the dimensions of which are consistent with the depth of penetration of the wave. Features of conical and biconic resonators − provide radio leakage in continuous operation by cutting off the tip at the level of the critical section, depending on the angle of inclination of the cone generator, and allow you to keep the standing wave inside the resonator. The combination of magnetron and cylindrical resonators increases the efficiency of the interaction of the electron flux with the microwave field, and an increase in the inductive volume, which is a “reservoir” of energy, increases the intrinsic quality of the resonator. A quasi-toroidal resonator, presented as a conical resonator in a toroidal resonator, having small overall dimensions and metal consumption, provides a traveling wave in the annular space, and a standing wave in the conical space. The high electric field strength in the capacitor part of the resonator and the corona discharge in the torus contribute to the disinfection of raw materials.
A new antimicrobial food peptide: characteristics, properties and effectiveness evaluation
Authors: Ulitina E. A. , Valieva Sh. S. , Tikhonov S. L. , Tikhonova N.  V.
Published: April 2024

Promising candidates as antibacterial drugs are antimicrobial peptides (AMP) present in cow colostrum. The aim of the research is to isolate, theoretically substantiate and confirm the biological activity of a new AMP from pepsin hydrolysate of cow colostrum with the amino acid sequence EKLAKNKLARGLKRK. According to the Protein NCBI database, the isolated AMP is identified as AW655195.1 105840 MARC 1BOV/ Bos taurus (cattle). When identifying AMP from the database of antimicrobial peptides APD, it was not found. When identifying AMP using the DRAMP database, the object under study is missing, but its characteristics belong to the antimicrobial class. The total hydrophobic ratio of the peptide determined by APD is 33%. The total net charge is +6, the molecular weight is 1753.151 Da. Protein binding potential (Boman index) at 3.44 kcal/mol. The selected AMP is close in characteristics to the known ones included in the APD database. AMP belongs to the cationic hydrophobic α-helical, which suggests its antimicrobial activity. As a result of in vitro experiments, the antimicrobial and antitumor activity of the peptide has been proven.
Influence of non-traditional raw materials on rheological parameters of dough and quality of bakery products
Authors: Naumenko N. V. , Chaplina A. A. , Sysoeva P. V. , Fatkullin R. I. , Naumenko E. E. , Kalinina I. V.
Published: April 2024

Relevance. At the same time, a prerequisite for a successful product on the market is its high organoleptic properties at a fairly low-price policy. As one of such approaches can be proposed the use of non-traditional plant raw ingredients (whole-milled flour from sprouted grain, β-glucan, pectin, etc.), which will allow to form high-quality food products of functional orientation.

Methods. The objects of the study were defined as model mixtures of wheat flour baking flour of the highest grade and non-traditional raw materials, as well as samples of bakery products (sliced loaf) obtained according to the traditional (control) and experimental formulation. The rheological characteristics of the dough were determined by alveograph and farinograph. The quality of the finished bakery products was assessed on a 40-point scale, as well as the control of the specific volume and humidity of the products.

Results. The studies showed that the introduction of β-glucan has a minimal effect on the elasticity of the dough, there is a decrease in the values of the quality index of farinograph on average by 17 - 22%. The dough elasticity decreases with the introduction of pectin more than 2 times, the values of quality indicator of farinograph increase, and the best result is characterized by the introduction of pectin in the amount of 2%, the maximum dough stability to kneading and minimum values of dough liquefaction degree are observed. Control and experimental samples of bakery products had high enough total values of organoleptic evaluation. The specific volume of experimental products increased by an average of 12% when beta-glucan was added in an amount of 0.1%, and by 8% when pectin was added in an amount of 4% relative to control samples. The obtained results confirmed the possibility and expediency of using non-traditional raw materials in the formulation of bakery products.
Antiproliferative activity in vitro of Trichinella spiralis larval extracts depending on the infection stage following experimental infection of rats
Authors: Konovalova G. V. , Koveshnikova E. I. , Kаganova M. M. , Nikolskaya E. D. , Yabbarov N. G. , Kurochkina K.  G.
Published: April 2024

Relevance.The aim is evaluation in vitro antiproliferative activity of T. spiralis larvae extracts obtained from experimentally infected rats, depending on the duration of infection.

Methods. The experiment was carried out on outbred male rats infected with T. spiralis larvae at the rate of 10 larvae per 1 g of body weight. The antiproliferative activity of larval extracts obtained 40 days, 3 and 12 months after infection was determined on tumor cells of the A549 line (human lung carcinoma) using an MTT test during cultivation for 24, 48 and 72 hours in concentrations from 32 to 1000 micrograms/ml. Antiproliferative activity was expressed as % inhibition and IC50.

Results. There was direct dependence of Trichinella extract antiproliferative effects on time of cultivation with A549 cells and protein concentration in extracts.  At all stages of invasion, the antiproliferative activity of the extract increased from 24 to 72 hours. at a protein concentration of 250 to 1000 mcg/ml. The extract antiproliferative activity expressed in tumor cell % inhibition and IC50 increased from day 40 to month 12. The most intense dynamics was observed between day 40 and month 3. The possible reason of enhancement in extract antiproliferative effect at months 3 and 12 is alteration in quantitative and qualitative composition of proteins comprised the extracts.
Methods for determining cortisol concentrations in animals
Authors: Novgorodova I. P.
Published: April 2024

The steroid hormone cortisol is the end product of the hypothalamic-pituitary-adrenal (HPA) axis. Recently, cortisol has been considered as a potential biomarker for identifying stress, because it is directly related to the body›s response. The most common methods for determining endocrine status, including cortisol, are enzyme-linked immunosorbent assay (ELISA) and radioimmunoassay (RIA), as they are the most reliable and have high sensitivity. Cortisol levels are determined mainly in blood, saliva, serum and urine. The concentration of this hormone in these samples is related to the circadian rhythm and fluctuates throughout the day. Therefore, samples of this biomaterial allow the analysis of acute dynamic changes in cortisol. The effects of chronic stress require assessment of long-term stress levels. Hair (fur) cortisol concentrations are increasingly used as a biomarker of long-term stress. Hair cortisol analysis has thus been a major methodological advance because it provides retrospective assessment of cumulative levels over long periods of time (from days to months). Over the past decade, the validity of hair (fur) cortisol levels as an indicator of long-term levels has been established. In addition, this material is the most stable over time and resistant to environmental influences. Measuring hair cortisol levels is an innovative method for determining long-term increases in cortisol levels, independent of many methodological difficulties and not associated with other matrices. Interest in hair as an object of endocrine activity is due to various unique features that provide many advantages over other biomaterials.
Productivity of the ewe's lambs Romanov breed when using a complex of mineral and vitamin supplements in diets
Authors: Malikova M. T. , Sabitov M. T. , Tyatigachev Sh. A. , Iskuzhina R. S.
Published: April 2024

Relevance. It is known that the mineral composition of the feeds of the Republic of Bashkortostan used in animal diets, in terms of calcium, phosphorus, magnesium, copper, cobalt and sulfur, does not meet the needs of animals. The deficiency of minerals is especially high in growing young animals.

In this regard, the development and scientific justification of the use of a complex mineral and vitamin feed additive (hereinafter CMVFA) in the diets of growing young sheep, which stimulate digestion and digestibility of nutrients in the diet, thereby increasing productivity, is of particular importance.

Methods. To study the effectiveness of feeding KMVKD in the diets of the Romanov breed yarok on the indicators of body weight gain in peasant farming conditions, 4 groups of yarok were formed on the principle of pairs of analogues (10 heads each). Yarki of the control group received in addition to the main diet at the rate of 20 g of monocalcium phosphate and 15 g of premix per head (P81-1-89). The yarks of the experimental groups of KMVKD were introduced into the composition of crushed grain mixtures: made according to recipes No. 1 — for the first, No. 2 — for the second, No. 3 — for the third (35 g per head per day).

Results. With a small difference in the intake of substances between the groups, the use of UMVD of 35 g per head per day had a significant impact on body weight gain. During the experiment period, the average daily weight gain in animals of the control group was 165 g, and in the experimental groups, respectively, 174.75 g, 183.52 g and 190.68 g, or more by 5.91%, 11.22% and 15.56% compared with the control. The level of profitability of production in the experimental groups increased by 10.60%, 16.03% and 20.54% compared with peers from the control group.
Economically valuable indicators of Lyuboyar barley
Authors: Levakova O. V. , Gladysheva O. V. , Eroshenko L. M.
Published: April 2024

Relevance. In recent years, the increase in gross grain harvests of grain crops has occurred mainly due to increased adaptability and yield, in which a significant role was played by the introduction of new highyielding varieties into production.

Methods. The object of the study is a new variety of spring barley Lyuboyar, entered in 2023 in the State

Register of Breeding Achievements of the Russian Federation in the Northwestern, Central and VolgaVyatka regions. Yaromir and Reliable varieties were used as standards, and the most popular varieties Nur and Vladimir were used for comparative analysis. The studies were carried out by field and laboratory methods using appropriate techniques.

Results. The yield of the new Luboyar variety, which amounted to 7.63 t/ha, consistently exceeds the yield of standard varieties (by 5.8–6.7%) and popular seeds on the market among Russian producers of Nur and Vladimir varieties (by 15.4–32.0%) for many years (2021–2023). The introduction of a new variety into production will allow you to get the highest conditional net income (29 016 rubles/ha) with a profitability level of 81.0% (23.2–43.9% higher compared to Nur and Vladimir varieties).
Prediction of the harmfulness of bristle species in agrophytocenoses with spring barley
Authors: Toigildin A. L. , Khairtdinova N. A. , Toigildina I. A. , Syromyatnikov V. V. , Ayupov D. E.
Published: April 2024

Relevance. The appearance of weeds in the fields of farms does not always imply their complete destruction, since from an economic point of view this may be ineffective. Therefore, in order to predict the effectiveness of crop contamination control in specific soil and climatic conditions, an urgent task is to develop and substantiate models of weed harmfulness and calculate economic thresholds for their harmfulness.

Methods. The harmfulness of gray bristle (Setaria glauca (L.) Beauv) and green bristle (Setaria viridis (L.) Beauv) in the conditions of the Agro-Invest Plus LLC enterprise in the Karsunsky district of the Ulyanovsk region in 2021–2022 on the yield of Despina barley was studied. The economic harmfulness thresholds were calculated against the background of the use of herbicides Ovsyugen Super, CE — 0.5 l/ha; Axial 50, CE — 0.9 l/ha; Puma Super, EMV — 0.9 l/ha; Avantik Turbo, MD — 0.5 l/ha. The scheme of the experience included: Option 1 — without weeds (control), 2–6 options — with the number of weeds, respectively, 10 pcs/m2, 20 pcs/m2, 30 pcs/m2, 40 pcs/m2, 50 pcs/m2, option 7 — with natural blockage. The accounting area of the plot is 1 m2, the location is systematic with an offset, the repetition is 6 times.

Results. Based on field experiments, predictive models have been developed to determine the harmfulness of weeds, which make it possible to establish economic thresholds for their harmfulness in the conditions of a particular farm. The harmfulness of the bristle according to the linear function was 0.106–0.147 c/ha, depending on the amount (pcs/m2) or 0.322–0.291 c/ha by weight (g/m2). According to prognostic models, the proportion (%) of changes in barley grain yield from contamination ranged from 79 to 85%. Studies have shown that chemical weeding is advisable in the presence of bristles in barley phytocenoses from 8 to 15 pcs/m2.
The harmfulness of weeds in the herbage of perennial grasses in the north-west of the Russian Federation
Authors: Shpanev A. M.
Published: April 2024

Relevance. In the structure of the acreage of the Northwestern region of the Russian Federation, a large proportion is occupied by perennial grasses, the herbage of which can potentially have severe weeds, and the harmfulness of weeds is high. Despite the current situation, the influence of weeds on the formation of an aboveground mass of grasses remains poorly understood.

Methods. The purpose of the study is to assess the harmfulness of weed vegetation in the herbage of perennial grasses of the 1st and 2nd years of use in the north-west of the Russian Federation. The research was carried out in 2010–2018 in the fields of grain-grass-row crop rotation of the Menkovsky branch of the Agrophysical Research Institute located in the Leningrad region, in the structure of long-term experience with the application of mineral fertilizers and plant protection products.

Results. Studies have shown that weeds cause significantly more harm (6.3 times) to perennial grasses of the 1st year of use than grasses of the 2nd year. Yield losses from the total value of the raw phytomass of weeds amounted to 15.75 c/ha (5.3%) and 2.51 c/ha (1%), including from 1 g/m2 at the time of mowing 0.150 c/ha (0.05%) and 0.07 c/ha (0.03%). The introduction of high doses of mineral fertilizers and the use of herbicides in the integrated crop protection system of grain-grass-row crop rotation led to a decrease in the harmfulness of weeds. In the perennial herbs of the 2nd year of use, the identified effects were significantly more pronounced than in the herbs of the 1st year. Under the influence of mineral fertilizers, the hazard coefficients decreased by 2.6 and 5.7 times, the protective measures systems — by 1.4 and 4.2 times, and the yield losses of green mass — by 2.6 and 10.7 times, 1.9 and 8.9 times, respectively, on grasses of the 1st and 2nd years of use.
Features of the microbial biological “Flavobacterin” impact on the yield and quality of potato tubers of the Udacha variety
Authors: Kozhemyakov A. P. , Minin V. B. , Laktionov Yu. V. , Melnikov S. P. , Zakharov A. M.
Published: April 2024

Relevance. Organic production is focused on maximizing the use of natural resources. Particular importance is attached to natural nitrogen fixation. Nitrogen fixation provides agricultural systems with nitrogen fixed from the atmosphere and converted into forms accessible to plants. The microbial biological “Flavobacterin”, which exhibits nitrogen-fixing activity and also suppresses a wide range of phytopathogenic fungi and bacteria, was created at the All-Russian Institute of Agricultural Microbiology.

Methods. Field studies of the “Flavobacterin” effects on potatoes were carried out from 2018 to 2022 in an organic crop rotation located at the Experimental Station of the Institute for Engineering and Environmental Problems in Agricultural Production Branch of FSAC VIM.

Results. The soil of the experimental plot is soddy-podzolic, light loamy gleyic on residual carbonate moraine loam, characterized by a slightly acidic reaction and a high content of organic matter. Udacha variety potatoes were cultivated. The studies were carried out with organic fertilizer — BIAGUM compost, prepared from chicken manure by industrial method. Potato tubers were treated with a “Flavobacterin” when planting, and then on the leaves. Weather conditions in summer during the years of research differed significantly from each other. In all years of the study, with the exception of the dry year 2021, the application of “Flavobacterin” significantly increased potato productivity by an average of 4.4 t/ha, without compost. In the same years, the use of compost together with “Flavobacterin” increased potato productivity by an average of 2.6 t/ha compared to options where compost was used without biological.
Dampak Kebijakan Learning From Home Terhadap Hasil Belajar dan Motivasi Belajar Ditinjau Dari Tingkat Stres Mahasiswa
Authors: Wijaya Muhammad Adhimawan , Sonny Hersona , Nurhasanah Nunung , Suyaman DJ
Published: April 2024

This study aims to analyze the effect of implementing learning from home (LFH) on stress levels, learning outcomes and student motivation, as well as analyzing constraints and describing student opinions regarding the implementation of LFH. This research was conducted at Panca Bhakti University, Pontianak, West Kalimantan with the research subjects being 33 students of the 2019 Management Study Program. This study uses a combination of quantitative and qualitative analysis methods. Data was collected by distributing questionnaires to obtain data related to the implementation of LFH, learning motivation, and stress levels. Furthermore, the measurement of learning outcomes obtained from the calculation of the value of student assignments after attending lectures in LFH is carried out. To explore obstacles and student opinions regarding LFH, interviews were conducted with selected subjects. The results showed that there was no significant effect between the application of LFH and the stress level of students on learning outcomes, while for the motivation variable it was known that there was a significant effect on the application of LFH and the stress level of students.
Peranan Kriya Bambu Dalam Meningkatkan Ekonomi Keluarga Pasca Pandemi Covid-19
Authors: Dwi Yulianti Siska , Fardiansyah Roni , Yasarudin Barkah
Published: April 2024

This research was motivated by the decline in the income of Bamboo Craftsmen in Kampung Cibiru (Kampung Egrang) Cicantayan Village, Cicantayan District, Sukabumi Regency, West Java during the pandemic so that it was affected by the economic conditions of their families. In this case, researchers want to see how the economic condition of bamboo craftsmen's families after the Covid-19 Pandemic is whether it continues to decline or increase better. Through, Bamboo Craft Art, the people of Egrang Cibiru Village, Cicantayan Village, earn income that can be used to meet their daily needs while preserving and maintaining the Bamboo ecosystem around their residences. This research uses the Phenomenological Qualitative Research Method, which emphasizes how the conditions of people's life experiences in utilizing bamboo in everyday life. The results of this study show that there is a role for bamboo crafts in improving the family economy after the Covid-19 pandemic in Kp.Ciburu, Cicantayan Village, Cicantayan District, Sukabumi Regency.
Implementasi dan Relevansi Kebijakan Dalam Pemerataan Pendidikan: Studi Literatur Pelayanan Publik
Authors: Anwar Kasypul
Published: April 2024

Every development of a country inevitably goes through a series of policies that must be implemented, including in the field of education. This study aims to collect evidence from scientific studies on the suitability of educational policy formulation with actual implementation. A series of related literature searches across various journals, publications, books and websites actively addresses educational policy and practice issues to support this research. We can use this data as study data after going through a series of studies related to the critical assessment data coding system and conclude after an in-depth interpretation of the data using a phenomenological approach. The data is completely valid and up-to-date. Based on the results of the research and discussion of this research, it can be concluded that the implementation of education policy is an action that is closely related to the way education is carried out with full responsibility, accountability in accordance with its duties. programmed by the constitution to improve the quality and accountability of education. The results of this study are expected to be an important input for efforts to develop similar research in future research activities.
Ukuran Kantor Akuntan Publik Dan Opini Audit : Audit Report Lag
Authors: Setiajatnika Eka , Gunadi Trida , Muhtadi Ihsan Alif
Published: April 2024

This study aims (1) to determine the effect of the size of a public accounting firm (KAP) on audit report lag, (2) to determine the effect of audit opinion on audit report lag and (3) to determine the effect of the size of a public accounting firm (KAP) and audit opinion on audit report lag. Research respondents are members of KAP Ernst & Young, KAP Deloitte, KAP Made Sudarma, Thomas & Dewi totaling 35 respondents. Based on the results of the study that (1) The size of the Public Accounting Firm (KAP) has a positive and significant influence on the Audit Report Lag, (2) That the Audit Opinion has a positive and significant influence on the Audit Report Lag and (3) That the Size of the Public Accounting Firm (KAP) and Audit Opinion have a positive and significant influence on the Audit Report Lag.
Pengaruh Digital Marketing Terhadap Peningkatan Volume Penjualan Hasil Industri Rumahan Desa Cibodas
Authors: Wida Rahmayani Melia , Hernita Nita , Gumilang Ayu , Riyadi Wulan
Published: April 2024

The development of information technology is currently very rapidly affecting the community in supporting various business activities. Cibodas Village, one of the areas in Majalengka District, Majalengka Regency, West Java, has high regional potential in improving community welfare through home-based businesses made by the community itself. The purpose of this research is to find out the extent of the effectiveness of digital marketing in an effort to increase sales volume in order to get maximum profit. The method used is descriptive verification in which researchers describe the state of digital marketing in increasing sales volume. Correlation analysis is the analysis used in this study, partially testing the hypothesis to determine the effect. The conclusion in this study is that digital marketing has a positive and significant effect on sales volume, meaning that the benefits of digital marketing on sales volume are needed because it will increase or decrease sales volume.
Measuring BUMDes Performance to Optimize Village Economic Growth
Authors: Maulana Wahyu , Furqon Moh. Amir , Purwanto Purwanto
Published: April 2024

A village with evenly distributed economic growth is an achievement in itself, as seen by the presence of BUMDes. This does not work easily, there are deficiencies and limitations so that the existence of BUMDes can make a positive contribution to a more independent village and grow its economy. The research objective is to measure the performance of BUMDes. The object of research is BUMDes Delta Mulia in the village of Panempan Pamekasan. The research method is in the form of quantitative descriptive using a combination of analysis Malcolm Baldrige and Du Pont System in producing BUMDes performance analysis. The results of the research show that the financial aspect resulted in a decrease in performance from 2018 to 2021. The average calculation shows a result of 28.38% where this figure is below the 30% standard, which means that the performance is not optimal. From the non-financial aspect, it generates 844 points out of a maximum total of 1000 points which means that BUMDes performance is in the Benchmark Leader criteria. From the results of this study, BUMDes can carry out performance evaluations, especially on financial aspects so that their performance is better and as good as performance on non-financial aspects
Peran Pelatihan Konvensional dalam Pengembangan Organisasi dan Dunia Industri
Authors: Maulana Arman
Published: April 2024

Training and development is a field related to organizational activities aimed at improving individual and group performance in an organizational environment. As a joint role commonly known as human resource development (HRM), namely developing human resources to remain competitive. Training focuses on taking actions to develop employees for their current jobs and development that prepares employees to take on future roles and responsibilities. It makes the analysis that the goal of training and development is for innovative learning organizations to ensure that employees, through added value, are able to do their job effectively, get results, gain competitive advantage and seek personal growth. Measurable performance due to good training and development will increase organizational growth. This process is called transferring information and knowledge to the employer. This enables employers to put this information and knowledge into practice with the aim of increasing organizational efficiency and growth, and the quality of human resource management should be considered alongside educational policies and systems so important to human capital development.
Pengaruh Motivasi Kerja Terhadap Kinerja Pegawai PT. Telkom Prima Cipta Certifia
Authors: Hatimatunnisani Hani , Veranita Mira , Robiul Rochmawati Dwi
Published: April 2024

This study intends to explain the effect of work motivation on employee performance at PT. Telkom Prima Cipta Certifia. Respondents as many as 55 employees were taken as samples for data collection through questionnaires. The results of the analysis show that there is a strong and significant relationship between work motivation and employee performance, namely 55.9% of the employee performance variance is influenced by work motivation, and the remaining 44.1% is influenced by other factors outside the variables studied.