bluuebunny/crossref_metadata_2025 huggingface dataset:
Combined Countermovement Jump Testing and Motion Analysis as the Future of Performance Assessment for Baseball Pitchers: A Narrative Review
Authors: Sakurai Motoki , Szymanski David J. , Qiao Mu , Crotin Ryan L.
Published: February 2023

Sakurai, M, Szymanski, DJ, Qiao, M, and Crotin, RL. Combined countermovement jump testing and motion analysis as the future of performance assessment for baseball pitchers: a narrative review. J Strength Cond Res 37(6): 1327–1338, 2023—Whole-body kinematics and kinetics impact pitching performance, and when coordination of momentum transfer is impacted, throwing-related injury risks increase. Although correlations between overhead throwing velocity and lower-body power measured by jump tests have been reported by previous studies, further research is needed to identify these relationships to better understand pitching mechanics and the validity and application of jump tests for the assessment of baseball pitchers. This review communicates effective whole-body pitching mechanics, including throwing arm, trunk, and pelvis, and lower body, as well as discusses the applicability of strength and power field tests to deepen training insights in establishing more efficient motor patterns. If both lower-body power and coordination of momentum transfer are optimized, baseball pitchers may experience reduced throwing arm stress. The overarching insight to be gained from this review article is that high performance in baseball pitching is multifactorial, and attention to both strength and skill coaching is paramount. As a result, the intersection of lower-body power testing and biomechanical analysis can play an important role in uniting strength and conditioning professionals, clinicians, pitching coaches, and biomechanics experts to advance pitching performance and health in the sport of baseball.
Skin Application of Menthol Enhances Maximal Isometric Lifting Performance
Authors: Over Daniel M. , Arjomandkhah Nicola , Beaumont Jordan D. , Goodall Stuart , Barwood Martin J.
Published: February 2023

Over, DM, Arjomandkhah, N, Beaumont, JD, Goodall, S, and Barwood, MJ. Skin application of menthol enhances maximal isometric lifting performance. J Strength Cond Res 37(3): 564–573, 2023—Topical application of menthol to the skin improves perception (i.e., makes subjects feel cooler) and changes submaximal neuromuscular recruitment facilitating force generation. We explored the effect of menthol (0.2% concentration; sprayed on the legs), on perception and maximal, dynamic (DLT) and isometric (IMLT) (weight) lifting tasks. Nine resistance-trained male subjects (mean ± SD: 24 ± 5 years; 75.7 ± 8.8 kg; 174 ± 10 cm; 5 repetition maximum deadlift [5RM] 132.3 ± 28.5 kg) were tested using a repeated measures design; we hypothesized that performance would improve. Before completing the DLT (i.e., deadlift performance 75% 1RM) and a midthigh pull dynamometer IMLT, subjects were sprayed with (∼125 ml) of menthol or control spray. Performance, electromyography (root mean squared [rmsEMG], rectus femoris [RF], biceps femoris [BF], and medial gastrocnemius [MG]), perceptions (leg thermal sensation [TSlegs] and comfort [TClegs] and perceived exertion [RPE] and readiness to train), heart rate, and skin temperature were measured. Data were compared using analysis of variance (effect size

) and t test to a 0.05 alpha level supported by Bayesian analysis. Dynamic lifting task performance was unchanged, although BF rmsEMG was higher (i.e., greater muscle activation in final [10th] repetition). Isometric lifting task force production was higher in the menthol spray (148 ± 30 kgf) condition (control spray 140 ± 30 kgf; p = 0.035,

= 0.444) with corresponding higher rmsEMG (BF 3.8 ± 1.46 vs. control spray 2.9 ± 0.34 V; p = 0.049,

= 0.403). TSlegs was lower after menthol spray before IMLT; subjects felt slightly cool. Menthol spray enhances isometric weightlifting performance with corresponding changes in neuromuscular activity, partially supporting our hypothesis.
Ergogenic Effects of Sodium Bicarbonate on Resistance Exercise: A Randomized, Double-Blind, Placebo-Controlled Study
Authors: Varovic Dorian , Grgic Jozo , Schoenfeld Brad Jon , Vuk Saša
Published: February 2023

Varovic, D, Grgic, J, Schoenfeld, BJ, and Vuk, S. Ergogenic effects of sodium bicarbonate on resistance exercise: a randomized, double-blind, placebo-controlled study. J Strength Cond Res XX(X): 000–000, 2022—This study explored the effects of sodium bicarbonate ingestion on muscular endurance, power, and velocity in resistance exercise. Nineteen resistance-trained men ingested either 0.3 g·kg−1 of sodium bicarbonate or 0.21 g·kg−1 of placebo (sodium chloride) 180–60 minutes before exercise. The exercise protocol involved performing 3 sets with 70% of 1 repetition maximum to muscular failure in the bench press and biceps curl exercises. Analyzed outcomes included the number of repetitions performed in every set and throughout all 3 sets. In addition, power and velocity of the repetitions were explored by matching the number of repetitions between the sodium bicarbonate and placebo trials. In the bench press exercise, sodium bicarbonate increased the following: (a) the number of repetitions performed in the third set (g: 0.30; p = 0.046), (b) the total number of repetitions performed throughout all 3 sets (g: 0.23; p = 0.04), (c) peak power in the second set (g: 0.19; p = 0.03), and (d) mean power (g: 0.23; p = 0.03) and mean velocity (g: 0.30; p = 0.02) in the third set. We did not find a significant difference between the conditions for any of the analyzed outcomes in the biceps curl exercise. Results indicate that sodium bicarbonate ingestion elicits an ergogenic effect on muscular endurance, power, and velocity in the bench press exercise. Given that ergogenic effects were observed only in the second and third sets, these data suggest that sodium bicarbonate acts by attenuating the suppressive effects of acidosis on muscle contractility.
Changes After a Conventional vs. an Alternative Therapy Program on Physical, Psychological, and Injury-Related Parameters in Male Youth Soccer Players With Patellar Tendinopathy During Return to Competition
Authors: Niering Marc , Muehlbauer Thomas
Published: February 2023

Niering, M and Muehlbauer, T. Changes after a conventional vs. an alternative therapy program on physical, psychological and injury-related parameters in male youth soccer players with patellar tendinopathy during return to competition. J Strength Cond Res 37(9): 1834–1843, 2023—Changes after a conventional (CON) vs. alternative (ALT) therapy program on physical, psychological, and injury-related or pain-related parameters in soccer players with patellar tendinopathy (PT) during return to competition were examined. Thirty-four male youth soccer players (15–16 years) with PT were randomly assigned to a CON (n = 18) or ALT (n = 16) program. The ALT program consisted of 60 minutes of balance training, eccentric and isometric exercises, static stretching, and a dual-task progression. The CON program consisted of 30 minutes of eccentric and isometric exercises and static stretching. Both programs were conducted until painlessness was reported during full training load. Assessments of muscle power (drop jump, jump and reach), change of direction speed (CODS) (acyclic sprint), speed (tapping, 30-m linear sprint), endurance (Yo-Yo intermittent recovery test level-1), the Achievement Motives Scale Sport, and injury-related or pain-related correlates were performed immediately, 6 weeks, 16 weeks, and 20 weeks after the respective therapy program. Players in the ALT group required a shorter program duration (ALT: 47.1 ± 15.6 days, CON: 58.2 ± 24.6 days) and achieved the same (muscle power, speed, endurance) or greater (CODS) improvements in physical performances, the same enhancements in psychological measures (achievement motives), and better values for injury-related or pain-related correlates (injury incidence, pain-related training interruptions). Results indicate that both programs effectively improve relevant outcome parameters in players with PT. The ALT therapy is more time efficient than the CON therapy. Therapists should consider this multimodal training program for effective treatment of athletes to shorten their return to competition time and minimize the risk of secondary injuries.
An update on the long-term outcomes of prenatal dexamethasone treatment in congenital adrenal hyperplasia
Authors: van’t Westeinde Annelies , Karlsson Leif , Messina Valeria , Wallensteen Lena , Brösamle Manuela , Dal Maso Giorgio , Lazzerini Alessandro , Kristensen Jette , Kwast Diana , Tschaidse Lea , Auer Matthias K , Nowotny Hanna F , Persani Luca , Reisch Nicole , Lajic Svetlana
Published: February 2023

First-trimester prenatal treatment with glucocorticoid (GC) dexamethasone (DEX) in pregnancies at risk for classic congenital adrenal hyperplasia (CAH) is associated with ethical dilemmas. Though effective in reducing virilisation in girls with CAH, it entails exposure to high doses of GC in fetuses that do not benefit from the treatment. The current paper provides an update on the literature on outcomes of prenatal DEX treatment in CAH cases and unaffected subjects. Long-term follow-up research is still needed to determine treatment safety. In addition, advances in early prenatal diagnostics for CAH and sex-typing as well as studies assessing dosing effects of DEX may avoid unnecessary treatment and improve treatment safety.
Fructose drives de novo lipogenesis affecting metabolic health
Authors: Geidl-Flueck Bettina , Gerber Philipp A
Published: February 2023

Despite the existence of numerous studies supporting a pathological link between fructose consumption and the development of the metabolic syndrome and its sequelae, such as non-alcoholic fatty liver disease (NAFLD), this link remains a contentious issue. With this article, we shed a light on the impact of sugar/fructose intake on hepatic de novo lipogenesis (DNL), an outcome parameter known to be dysregulated in subjects with type 2 diabetes and/or NAFLD. In this review, we present findings from human intervention studies using physiological doses of sugar as well as mechanistic animal studies. There is evidence from both human and animal studies that fructose is a more potent inducer of hepatic lipogenesis than glucose. This is most likely due to the liver’s prominent physiological role in fructose metabolism, which may be disrupted under pathological conditions by increased hepatic expression of fructolytic and lipogenic enzymes. Increased DNL may not only contribute to ectopic fat deposition (i.e. in the liver), but it may also impair several metabolic processes through DNL-related fatty acids (e.g. beta-cell function, insulin secretion, or insulin sensitivity).
Behavior in Oxidation at 1000°C of Carbon-Containing Equimolar CoNiFeMnCr Alloys Added with Hafnium or Tantalum with High Contents
Authors: Berthod Patrice
Published: February 2023

In this work, HfC–and TaC–reinforced cast versions of the equimolar CoNiFeMnCr alloy (Cantor) were tested in oxidation at 1000°C in laboratory air. Chromium seemingly shared, with manganese, its role as a selectively oxidized element. The principal oxide to form externally was an M2O3 one in which Mn and Cr were present in various proportions depending on the proximity with the alloy’s surface. The HfC carbides close to the oxidation front were oxidized in situ in HfO2, with the release of carbon diffusing inwards after that and inducing the solid-state precipitation of blocky or acicular chromium carbides. The behavior of the TaC carbides present close to the oxidation front was different since they dissolved, and Ta diffused towards the oxidation front to form CrTaO4 oxides. Even after 50 hours at 1000°C, the subsurfaces were more or less deeply impoverished in Cr and Mn, with minimal contents meager, especially for Mn. The evaluation of the Cr and Mn quantities and the exploitation of results in terms of equivalent oxide thickness and kinetic oxidation constant demonstrates that the resistance of the alloys against oxidation is feeble and must be significantly improved to allow benefiting of the superior high-temperature mechanical resistances of such alloys in practical application. For that, some ways are proposed.
Terminological dictionary of welding and related technologies
Authors: Lobanov L.M. , Demchenko Yu. V. , Makovetska O.K.
Published: February 2023

There are about 2.5 thousand terms of welding and related technologies in Ukrainian and English languages in this terminological dictionary — cutting, brazing, surfacing, gluing, spraying, non-destructive testing, metallurgical engineering, material science and engineering, mechanical science, etc. There are also brief definitions of them. The book is for academic specialists, engineering technicians, lecturers and students of higher education institutions and secondary specialized colleges, and also for welding engineers.
Predictors of Inpatient Racemic Epinephrine Use in Patients Admitted With Croup
Authors: Hancock W. Caleb , Scott Matthew , Winer Jeffrey C.
Published: February 2023

OBJECTIVE

Many patients hospitalized for croup receive no additional racemic epinephrine (RE) postadmission. We analyzed the association between inpatient racemic epinephrine (RE) use and demographic and emergency department (ED) parameters including timing between RE doses with a goal of identifying patients who may be low risk for ED discharge.

METHODS

We completed a retrospective cohort study of previously healthy patients ages 2 months to <7 years old who were admitted with a diagnosis of croup from 2016 to 2019 at a freestanding tertiary-care children’s hospital. Patients were eligible for this study if they received at least 1 RE treatment before admission.

RESULTS

The cohort included 238 patients; 59 (24.7%) patients received additional RE during admission. The number of RE doses in the ED (P = .99) and the median time between RE doses (P = .71) were not different between inpatient RE and no inpatient RE groups. Younger patients (P = .045) and patients with tachypnea for age (odds ratio [OR] 2.33; 95% confidence interval = 1.2–4.4) were more likely to require RE during admission. Median length of hospitalization for patients receiving inpatient RE was significantly longer (38 hours vs 16.7 hours, P < .001), whereas readmit rates were similar between groups (5.1% vs 3.9%, P = .71).

CONCLUSIONS

Fewer than 25% of admitted patients received inpatient RE. Age and tachypnea for age were associated with inpatient RE use. Reassessment of admission thresholds for multidose RE use may be warranted to prevent unnecessary hospitalizations.
Allometric Indexing of Left Ventricular Mass in Echocardiography: Differences Between Men and Women
Authors: Sahlén Anders , Teo Muh Tyng , Hamid Nadira , Huang Weiting , Del Rosario Agpaoa Abigail , Ruan Wen , Ewe See Hooi , Yeo Khung Keong , Ding Zee Pin
Published: February 2023

Background: As echocardiographic left ventricular mass does not scale linearly with body surface area, indexing of left ventricular mass to height raised to the power exponent b has been proposed (‘allometric indexing’). Pooling data from males and females has been reported to lead to a higher value of b than when each sex is considered separately. We wished to determine if this is due to within-sex clustering, as this would change both how optimal b should be determined and how indexing should be performed. Methods: Echocardiograms were performed in rigorously screened healthy subjects (96 men, 133 women), and b was calculated as the relationship between left ventricular mass and body height. Results: Clustering was detected within men and women through analysis of regression model residuals, violating assumptions of independence. A hierarchical model was built to allow for clustering, and compared with treating males and females as separate populations using Bayesian regression. Bayes factor analysis showed greatest credibility of the clustered model with optimal b determined as 1.64 (0.68–2.82) and 0.96 (0.17–1.73) in men and women, respectively. Conclusion: Data from men and women are best suited to multilevel modelling, and b should therefore not be estimated after pooling. This indicates that allometric indexing may require sex-specific values either for the power exponent or for any subsequently derived reference ranges.
МАТЕМАТИЧНІ МОДЕЛІ ДВОЕТАПНИХ ЗАДАЧ ОПТИМАЛЬНОГО РОЗМІЩЕННЯ-РОЗБИТТЯ В УМОВАХ НЕВИЗНАЧЕНОСТІ
Authors: Bulat A. F. , Kiseleva O M. , Hart L. L. , Prytomanova O. M.
Published: February 2023

Досліджено математичні моделі та підходи до розв’язання двоетапних задач оптимального розміщення-розбиття з нечіткими початковими даними. Ці задачі узагальнюють, з одного боку, класичні скінченновимірні транспортні задачі на випадок, коли обсяги виробництва (зберігання, переробки) в заданих пунктах невідомі заздалегідь та відшукуються як розв’язок відповідної неперервної задачі оптимального розбиття множини споживачів (постачальників неперервно розподіленого ресурсу) на сфери обслуговування їх цими пунктами; з іншого боку, вони узагальнюють дискретні двоетапні виробничо-транспортні задачі на випадок неперервно розподіленого ресурсу.
ЗАСТОСУВАННЯ ЕВРИСТИЧНИХ АЛГОРИТМІВ ДЛЯ ФОРМУВАННЯ КРЕДИТНОГО ПОРТФЕЛЯ БА НКУ
Authors: Kozakova N. L. , Chernytska O. V. , Sheychenko P. O.
Published: February 2023

Запропоновано узагальнений алгоритм формування оптимального кредитного портфеля банку за допомогою методів багатокритеріальної оптимізації із застосуванням евристичних алгоритмів. Математична модель представлена у вигляді послідовного алгоритму зведення багатокритеріальної задачі до задачі умовної оптимізації, та застосування методу штрафних функцій для послідовного розв'язання задач безумовної оптимізації. На кожному кроці запропоновано застосування евристичних алгоритмів. Вказано особливості застосування та чисельної реалізації алгоритмів.
Versionando el “Urbanismo para arquitectos”. La docencia troncal del urbanismo en la Escuela de Arquitectura de Barcelona
Authors: Crosas Armengol Carles
Published: February 2023

El ‘urbanismo para arquitectos’, enseñanza impulsada a partir de los años 70 desde el Laboratorio de Urbanismo de Barcelona, sigue presente hoy en el currículum de la Escuela de Arquitectura de Barcelona en algunas nuevas ‘versiones’ que se adaptan a los cambios sustanciales de la disciplina. En un relato que pretende conectar el pasado con el presente y el futuro, este artículo pone en relación las bases epistemológicas que asentaron esta aproximación y examina su vigencia y validez para afrontar los retos que plantea el urbanismo contemporáneo. La revisión de los aspectos fundamentales que ha caracterizado la formación de los arquitectos catalanes se combina, por un lado, con la descripción precisa de los cambios que se han introducido en el tradicional curso de ‘proyecto urbano’. Por el otro, se hace una reflexión sobre el encaje de esta tradición docente en la actual estructura de planes de estudio universitarios y en el espacio competencial de los arquitectos en relación a las prácticas profesionales del urbanismo y el planeamiento. Es, en resumen, una aproximación crítica sobre cómo nuevas ‘versiones’ de los temas clásicos modifican sus melodías para afrontar de forma eficiente los nuevos retos de la disciplina y del aprendizaje del urbanismo.
Additional value of microvascular flow imaging in the assessment of cystic and solid renal lesions
Authors: Járay Ákos , Farkas Péter István , Semjén Dávid , Battyáni István , Botz Bálint
Published: February 2023

Background

Contrast enhanced ultrasound (CEUS) is increasingly used in the evaluation of renal lesions, however, its availability remains limited. Thus, sensitive noncontrast ultrasound evaluation of renal lesion vascularity is an unmet need.

Methods

In this single-center, retrospective study we assessed microvascular flow imaging (MV-flow) compared to CEUS in the evaluation of complex renal cysts and solid lesions. Out of 92 patients 28 were evaluated with both CEUS and MV-flow. Color Doppler, CEUS, and MV-flow was performed in 13 cases, whilst MV-flow, CEUS, and contrast-enhanced MV-flow (CE-MV-flow) was done in 16 cases. The CEUS diagnosis was considered gold standard.

Results

MV-flow showed a substantial agreement with the CEUS diagnosis (weighted Kappa = 0.806), excluding equivocal lesions (Bosniak 2F). MV-flow substantially outperformed color Doppler (weighted Kappa = 0.77 vs. 0.133). The agreement of CE-MV-flow and MV-flow was comparable (weighted Kappa = 0.79 vs. 0.69).

Conclusion

MV-flow significantly improves evaluation of renal lesion vascularity compared to conventional techniques. However, the sensitivity is limited for equivocal lesions (e.g. Bosniak 2F cysts). Thus, MV-flow should be used as an ancillary technique, not as a substitute to CEUS. Current MV-flow presets are ill-suited for postcontrast imaging, therefore specific presets optimized for this purpose are needed to establish its potential.
The Lower Bipartite Number of a Graph
Authors: Bachstein Anna , Goddard Wayne
Published: February 2023

For a graph G, we define the lower bipartite number LB(G) as the minimum order of a maximal induced bipartite subgraph of G. We study the parameter, and the related parameter bipartite domination, providing bounds both in general graphs and in some graph families. For example, we show that there are arbitrarily large 4-connected planar graphs G with LB(G) = 4 but a 5-connected planar graph has linear LB(G). We also show that if G is a maximal outerplanar graph of order n, then LB(G) lies between (n + 2)/3 and 2 n/3, and these bounds are sharp.
Projektowanie modelu dydaktycznego pozycjonera paneli fotowoltaicznych
Authors:   Dr inż., Państwowa Wyższa Szkoła Wschodnioeuropejska w Przemyślu, Instytut Nauk Technicznych – Zakład Mechatroniki, Informatyki i Inteligentnych Technologii, Polska, Szabłowski Stanisław
Published: February 2023

The study presents example of didactic model of two-axis PV panel positioner, operating in an open control system. The controller has control algorithm based on astronomical calculations. During the tests, the quality of the control algorithm and the energy efficiency of the system were checked. The conducted tests confirmed the correct operation of the positioner.
Delayed Cardiac Metastasis from Renal Cell Carcinoma Caused by VHL Mutation
Authors: Sudduth Christopher L. , Castagno Anthony , Maggs Peter
Published: February 2023

Cardiac metastasis caused by renal cell carcinoma (RCC) without vena caval involvement is rare. No mutation has been associated with this unique phenotype. A 77-year-old male presented to our clinic with a symptomatic right ventricular mass after nephrectomy for clear cell RCC (ccRCC). The mass was resected, and metastatic disease was confirmed. Targeted exon sequencing identified a VHL mutation (c.494T > G, p.V165G) in the resected specimen. While more than half of ccRCC cases are associated with VHL mutations, this case is the first to show the association between delayed, isolated cardiac metastasis and VHL V165G mutation. The phenotype presented 12 years after nephrectomy and localized to the right ventricular apex. Further genomic characterization of cases with cardiac metastases may provide clues regarding unique mutations noted. Patients exhibiting delayed spread of RCC to the heart must be screened for this mutation.
SOLVING THE PROBLEM OF LONGITUDINAL BENDING OF A ROD BY METHODS OF DISCRETE CALCULUS OF VARIATIONS
Authors: Aksenenko I. A
Published: February 2023

The question of the longitudinal bending of a rod consisting of rigid links connected by hinges is being studied. It is shown that, as in the classical version of a solid rod, the problem can be posed as a variational minimum energy problem, but given by a functional defined on a class of functions with a discrete domain of definition. The main provisions of the classical calculus of variations are transferred to functionals of this type: the formula of variation is found, a generalization of the main lemma of the calculus of variations is proved, an analogue of the Euler equation, which is a difference equation, is obtained. Applying the results obtained and the known properties of classical difference equations, we succeeded in solving an analogue of the Euler problem for two types of a hinge rod: for a rod consisting of links of the same length, and for an arbitrary choice of lengths of links. In both cases we find the critical Euler force, as well as the equation and the form of the deflection curve.
CLASSIFICATION OF THE TECHNICAL CONDITION OF WATER PUMPING EQUIPMENT USING CONVOLUTIONAL NEURAL NETWORKS
Authors: Karakulov I. V
Published: February 2023

The problem of equipment repair management in water supply systems is considered. The purpose of the study is to study the issues of the possibility of classifying the technical condition of pumping equipment through the use of modern machine learning models. Classification is carried out on the data that were obtained by vibration diagnostics during the maintenance of pumping units. The initial data is converted into chalk spectrograms, the results of the conversion are presented as images. The model classifies time series according to one of three states: satisfactory, acceptable, not acceptable. Accuracy assessment is carried out by calculating indicators such as: precision, recall, F1-score. Since each class has a different number of measurements in the source data, the accuracy is determined by calculating each of the indicators for each class separately and then averaging them. Convolutional neural networks are used to classify images. To solve the problem, a network with a deep ResNet-50 architecture was chosen. The accuracy indicators that the network showed in other classification tasks and the speed of network learning determined the choice of this configuration. The average value of the precision indicator reaches 0.81, recall 0.90, and F1-score 0.85, which is a good result for the top-1 criterion. Classification of chalk spectrograms obtained from the initial data shows good results, despite the fact that the data has not been cleared of noise. The proposed methods and models have been tested on real data, which confirms the possibility of their use in the development of an intelligent information system for managing the technical condition of pumping equipment.
FORMATION OF TNE METHODOLOGY OF STRATEGIC AND OPERATIONAL MANAGEMENT OF INDUSTRIAL ENTERPRISES IN THE CONDITIONS OF GLOBAL INSTABILITY
Authors: Loginovskiy O. V , Hollay A. V , Shestakov A. L , Korennaya K. A
Published: February 2023

The strong aggravation of military and political instability in the world, the introduction by the United States of America and other Western countries of a huge number of various and unjustified sanctions against Russia created very difficult conditions for doing business in our country's industrial enterprises. In this regard, the issues of forming a methodology for the strategic and operational management of industrial enterprises, which need to ensure survival and further development, despite the harmful effects of Western states and the most difficult problems with resource support for production, as well as sales of products outside the Russian Federation, are of particular importance. The article discusses the main directions of development of scientific thought in the field of strategic and operational management of industrial enterprises, including in modern conditions, characterized not only by the military-political aggravation of the situation in the world, but also in many respects related to these processes, the emergence of economic crises in the largest regions of America and Europe. The authors propose a new aggregated algorithm for managing industrial enterprises, both at the strategic and operational levels, based on mathematical models and methods, taking into account the characteristics of modern industry markets. It is also noted that the modern world economy is subject to cyclical phenomena due to the very nature of capitalist relations, and not only from the desire of the Western world to destroy Russia and its powerful industrial potential. The article also presents a number of mathematical models developed by the authors for assessing the production efficiency of industrial enterprises both for the options for the functioning of manufacturing companies in a stable environment and increased demand for enterprise products, and for their working conditions during periods of crisis. The most relevant today are the models of choosing strategic decisions in the context of the global crisis. Thus, the paper proposes a methodology for the preparation of managerial decision - making by the management of industrial enterprises, which ensures the minimization of costs for the production and sale of finished products, as well as the feasibility of technical re - equipment by enterprises in various periods of the functioning of the world economy. It is also reported how the proposed methodology for the strategic and operational management of industrial enterprises in the quite recent past allowed Russian manufacturing companies to achieve fairly high performance and competitiveness at the international level.
A Simple Design of Water-based Broadband Metamaterial Absorber for THz Applications
Authors: Nguyen Thi Kim Thu , Nguyen Thi Minh , Nguyen Hong Quang , Nguyen Thi Minh Tam , Ho Thi Huyen Thuong , Pham Tra My , Vu Dinh Lam , Nguyen Thi Quynh Hoa
Published: February 2023

A simple water-based broadband metamaterial absorber has been proposed for the terahertz region. The absorption bandwidth is extended based on large frequency dispersive permittivity and high relative dielectric loss of water. The simulated result indicates that the absorption of the proposed structure achieves over 90% in the frequency range from 0.6 to 10 THz at a normal incident angle. Moreover, the performance maintains high over 80% with a wide incident angle up to 60o for transverse electronic (TE) mode and over 90% up to 700 transverse magnetic (TM) mode in the entire operating frequency range. Therefore, the designed absorber has a potential candidate for broadband THz applications.
Muzeum-Rezerwat „Bitwa pod Stalingradem” – historia i nowoczesność
Authors: Ivanyuk Sergey , Skorchenko Irina
Published: February 2023

The article is dedicated to issues connected with the foundation and functioning of a leading the Russian museum-outpost – the Museum “The Battle of Stalingrad” in Volgograd. In years 1942–1943 in Volgograd, called Stalingrad at that time, and on its suburbs one of most important battles of World War II took place; for more than five months Red Army, with the huge cost of human losses, beat off the attack of German armies aiming to overtake this strategically important place. Memory about those events is cultivated by the Museum “The Battle of Stalingrad”. The museum is not only a place of constant and temporary exhibitions; it is also a place of educational and informational activity. Everything what is connected with the heroic defence of Stalingrad – the all military equipment, banners, documents, photographs and other souvenirs coming from the period of World War II can be seen in several departments of the museum located in the city; about 2 000 000 people visit the place each year.
Artysta Bolesław Jarosław Cybis: krótki szkic życia i twórczości do 1939 roku wraz z wyborem źródeł
Authors: Żwanko Lubow
Published: February 2023

A sketch of life of an outstanding, but a little forgotten, artist Bolesław Jarosław Cybis, who lived in years 1895– 1957, is presented in the article, but the author discusses only period till 1939. On the basis of an analyses of materials five stages in his biography have been separated: Crimean-Petersburg (1895–1912), Kharkov (1912–1919), Istanbul (1920–1923), Varsovian (1923–1939) and American (1939–1957). The article has been based on sources that have been unknown so far. The materials are stored in the Archive of Academy of Fine Arts in Warsaw, and they are connected with studies, employment, and the artist’s private life. Special attention has been paid to Kharkov time which became the time of choosing an occupation and also time of avant-garde, a dominating arts movement at that time, which became also his style of creating.
Armenians in Poland from the 14th century to the first years of the 21st century
Authors: Nabywaniec Stanisław
Published: February 2023

The first groups of Armenians arrived in Red Ruthenia, Podolia, and Kyiv Ruthenia as early as in the 11th century as part of the first wave of exiles before the Seljuk invasion. At the same time the first Armenian settlements in these Polish lands were established. However, a significant development tendency of the Armenian settlement can only be mentioned concerning the reign of Casimir the Great, who also contributed to the raise of the Armenian church in Lviv to the rank of a cathedral. The greatest development of the Armenian settlement in the Polish-Lithuanian Commonwealth took place in the 16th and 17th centuries. At the end of the 17th century, Armenian settlements stretched along the entire south-eastern border of the Republic of Poland. The Armenian colonies in the former Polish-Lithuanian Commonwealth played an important role in the organization of eastern trade. A trade route connecting the East with the West ran through the territory of the Republic of Poland. Apart from economic activity, Armenians played a significant role in the field of diplomacy. All Armenian colonies in the territory of the Republic of Poland enjoyed autonomy. The outbreak of the war in 1939 meant that Poles and Armenians shared the tragic fate. World War II dispersed the Polish Armenians. Some of them – mainly Armenians from the city of Kuty and its surroundings – were murdered in 1943–1944 by the Ukrainians, with the approval of the Germans. Others were taken to Soviet camps or sent to Central Asia. Few Armenians remained in Lviv. Polish Armenians who survived lived in postwar Poland. After the political transformation that took place in Poland and other countries of Central and Eastern Europe, new emigrants from Armenia come to Poland. According to the 2002 national population and housing census, 262 citizens of the Republic of Poland declared themselves as Armenians.
Женское образование в семьях польской шляхты Киевской губернии ХІХ – в начале ХХ в.: общее обозрение
Authors: Kryvosheia Ihor , Radchuk Aniuta
Published: February 2023

The article analyzes the impact of education, as well as religious, secular and medical guides available in the discussed environment, on the general upbringing of girls from the families of the Polish nobility of the Kyiv province in the 19th and early 20th centuries. The educational situation of the women living there at the beginning of the 19th century depended directly on the financial situation of their parents and the policy of the Russian Empire in the region. The opening of new educational institutions for women in the first half of the nineteenth century was a rare phenomenon and resulted mainly from the initiative of private individuals, not the state. Various factors influencing the process of upbringing girls in the premarital age in noble families were also taken into account. Based on the analysis of the so-called Recommended books (guides), written and published for Roman Catholic women, show the significant influence of religion on the development of family institutions.
EXPERIMENTAL INVESTIGATION OF HEAT TRANSFER AND PRESSURE DROP CHARACTERISTICS FOR VERTICAL DOWNFLOW USING TRADITIONAL AND 3D-PRINTED MINI TUBES
Authors: Chen Jia Hang , Yang Yi Fan , Lam Lam , Zeng Min , Ma Ting , Tam Lap Mou , Ghajar Afshin J.
Published: February 2023

In this study, an investigation on the influences of different manufacturing techniques on the heat transfer and pressure drop in the developing and fully developed regions of mini-tube under different flow regimes is introduced. The purpose of this research is to experimentally investigate the heat transfer and pressure drop characteristics using 3D-printed tubes and traditional stainless steel tubes in the vertical direction under isothermal and non-isothermal boundary conditions. Experiments are conducted using distilled water (Prandtl numbers varying from 4 and 7) at Reynolds numbers of 800-10000 with heat fluxes between 30 and 500 kW·m-2. Test tubes with inside diameters of 2 mm are used, and the average surface roughness is 1.6 μm and 15.3 μm, respectively. The results are compared with previous studies. It is verified that the heat transfer characteristics are almost the same for the traditional tube and the 3D-printed tube in the laminar region. The average deviation between these two tubes is 7.7%. However, for the turbulent region, the Nusselt numbers of 3D-printed tube in the turbulent region increases by an average of 45% as compared with a traditional tube. The friction factors under heating conditions also increased by an average of 209%. In addition, the 3D-printed tube enters the transition region earlier. The results show that the average critical Reynolds number of a traditional tube and 3D-printed tube is around 2300 and 2000, respectively. Correlations in the turbulent region are developed to predict the friction factors and heat transfer coefficients with good accuracy.
How energy is consumed in vacuum preloading treatment of soft ground
Authors: Shi Li , Wang Jiahao , Wang Xiaotian , Sun Honglei , Yu Yanming , Cai Yuanqiang
Published: February 2023

The vacuum preloading method is commonly used to improve soft soils; however, it has rarely been studied from the perspective of energy consumption. The work done by the vacuum pump in the vacuum system can be consumed in various ways, including seepage consolidation of soil, water discharge along prefabricated vertical drains and horizontal drainage system (i.e. sand blanket or horizontal pipes), extraction of the air sealed in the drainage system and air leakage from the atmosphere. Equations governing these aspects of energy consumption were derived in this study. A theoretical model of the energy consumption of the vacuum preloading method was established and then solved to quantify the specific forms of energy consumption. Theoretical predictions and laboratory results demonstrate that the energy consumptions of seepage consolidation and water discharge are negligibly small compared with the total work by the vacuum pump, and most of the work done by the vacuum pump in the vacuum system is consumed during the extraction of leaked-in air.
Rooms of their Own: Displaying Architecture by Women in Copenhagen
Authors: James-Chakraborty Kathleen
Published: February 2023

A review of the exhibition Women in Architecture, held at the Danish Architecture Center, Copenhagen (13 May–23 October 2022), curated by Sara Hatla Krogsgaard. This exhibition was held in conjunction with Henriette Steiner and Svava Riesto's project, Women in Danish Architecture 1925–1975.
'Posies for sophists': Anna Mendelssohn and Veronica Forrest-Thomson
Authors: Gardner Callie
Published: February 2023

This article seeks to read the poetry and poetics of Anna Mendelssohn and Veronica Forrest-Thomson in dialogue with one another. Both were associated with the ‘Cambridge School’ of poetry, but never acquired the professional and social security enjoyed by some of the men of the movement. Beginning by offering a ‘Forrest-Thomsonian’ reading of Mendelssohn according to the precepts of Forrest-Thomson’s theory of poetry in Poetic Artifice, it then outlines Mendelssohn’s strategies for dealing with the responsibilities and challenges of poetic form. It then uses these principles to attempt a ‘Mendelssohnian’ reading of Forrest-Thomson’s poem ‘Approaching the Library’. Ultimately, it is hoped that by reading the poets together, we can explore their poetics and its relationship to knowledge through concrete examples of their texts’ operations.
Al-Zawahiri halálának következményei a tálibok jövõbeli tevékenységére
Authors: Katona Magda Nasrin
Published: February 2023

2022. június 31-én Kabul diplomatanegyedében ameriai dróntámadás végzett AymanAl-Zawahirivel, az al-Káida terrorszervezet második emírjével, aki 11 évig állt azal-Káida élén. Likvidálásával egy korszak zárult le. Halálának messzemenő következményeivárhatók mind a tálibok, mind a nemzetközi közösség számára.
Non-destructive testing of steel wire ropes incorporating magnetic memory information
Authors: Zhang Juwei , Zhang Zengguang , Liu Bo
Published: February 2023

In order to avoid the influence of the interfering magnetic field, a wire rope magnetic memory detection platform under the excitation of a weak magnetic field is built and then the enhanced magnetic memory signal, infrared signal and visible light signal are fused to increase the recognition
rate and reduce the identification error of the quantitative identification of broken wires, realising more effective defect identification and life assessment of wire ropes. The magnetic memory signal is denoised by applying intrinsic time-scale decomposition (ITD) and a wavelet algorithm
to effectively remove noise such as the signal baseline and strand waves. The image fusion method based on curvelet transform is applied to realise pixel-level fusion of the defect images. The extracted fused image features are used as the input to the support vector machine optimised by the
grey wolf optimiser (GWO-SVM) neural network to quantitatively identify wire rope defects. The results show that the image fusion method is better than the single detection method for broken wire identification.
A rare case of polythelia on the buttock, found incidentally during colonoscopy
Authors: Sercombe Ashleigh M. , Chakraborty Joy
Published: February 2023

Polythelia or supernummary nipples is a congenital anomaly where more than two nipple- areolar complexes are present. While polythelia is the most common mammary tissue malformation, it is still a rare condition with an incidence of 0.2% to 5.6%. Suppernummary nipples are usually located in the medial embryonic milk lines however, there have been some published cases of atypical locations. We present a case of a 42-year-old male who was incidentally found to have a supernummary nipple on his left buttock on colonoscopy. There was no prior family history of polythelia or any congenital abnormalities.
Efficacy of Second Prostaglandin F2 Alpha Treatment during Ovsynch Protocol on Pregnancy Rate Inseminated with Sex-sorted Semen in Buffaloes
Authors: Dhatonde A.S. , Ingawale M.V. , Pawshe C.H. , Deshmukh S.G. , Hajare S.W. , Ingole R.S.
Published: February 2023

Background: Ovsynch is one of the most adopted estrus synchronization protocols used for synchronization of ovulation and fixed-time artificial insemination however, new corpus luteum (CL) induced by the first GnRH treatment in Ovsynch is inappropriately regressed with a single treatment with prostaglandin F2α. Inadequate CL regression reduces fertility. Considering this rationale, present research was implemented with the effect of second prostaglandin F2 alpha treatment during Ovsynch protocol on pregnancy rate inseminated with sex-sorted semen in buffaloes. Methods: Post-partum true anestrus multiparous buffaloes (n=24) were categorized as a group I (Ovsynch; n=12) and group II (Double PG Ovsynch; n=12). Buffaloes from group I were treated with standard Ovsynch protocol (D=7; G-P-G), while additional second prostaglandin F2 alpha injection was administered on day eighth (D=7; G-P-P-G) in group II (Double PG Ovsynch). All the buffaloes were inseminated 16-20 hrs after the last GnRH injection with sex-sorted semen. Result: The estrus signs exhibited were numerically higher in group II than in group I. The first service pregnancy rate in double PG Ovsynch was higher than the Ovsynch group. The addition of a second prostaglandin F2 alpha injection in the Ovsynch protocol improves the estrus quality and increases pregnancy rate.
Masculinidad como arma del silencio
Authors: Vega Pérez Leonel Antonio , Puerto Gutiérrez Daniela Alexandra
Published: February 2023

El libro realiza una aproximación al problema de la violencia a partir de la mirada de los actores directos -en este caso, los hombres y los patrones de masculinidad-, como de quienes abordan el problema desde distintas perspectivas como los entes estatales, las ONG’s y los operadores judiciales. Para responder a esta estructura objetivo-general, se realizó una detallada exposición del tema en la construcción de conceptos de masculinidad y violencia; la descripción de los factores intervinientes en el problema de la violencia, las causas, la invisibilización del problema y los daños subsecuentes en las víctimas; así como la contextualización histórica, geopolítica y psicosocial para entender las diversas vertientes que complejizan el problema y justifican su manejo interdisciplinario. Desde una perspectiva todavía limitada en un contexto nuevo de justicia y captividad se espera este sea un aporte que constituya una alerta para el modelo de trabajo que enrutará la Jurisdicción Especial para la Paz; que afecta incluso en el derecho probatorio, en la medida que propone una nueva forma de valorar la violencia sexual.
El patio de la escuela: lugar de experiencia de violencias entre varones
Authors: Cazañas Palacios Rosalinda , Gutiérrez Garduño María del Carmen
Published: February 2023

The objective of this article is to expose practices of school violence between boys framed in the daily school life of a public elementary school in the State of Mexico that occurred in the schoolyard. For its analysis, the school yard has been located as the place where the honors to the flag, recess and physical education class are performed. Moments of the school day in which practices of school violence between males determined by the mandates of hegemonic masculinity can be made visible. The methodology used is ethnographic with a gender and intersectional approach. The recovery of the empirical data was through participant observation. Among the conclusions is that masculinity as a practice needs interlocutors to make sense of the manifestations of school violence among men.
Keywords: school violence; masculinity; gender relations; student experience, men.
Prácticas de cuidado con hijos adultos ¿Cuándo los hijos crecen los cuidados cambian?
Authors: Valle Morfín María Esther , Obregón Patiño Jessica Paola
Published: February 2023

Fatherhood is a process in the life trajectory of some men that changes their identity, their way of seeing and perceiving themselves and others. However, during the development of the children, the way of caring for them also changes. In the present investigation, the objective was to describe the care practices in a father with adult children from a relational gender perspective; For this, a case study is presented through semi-structured interviews. The results show that exercising paternity is a process that can lead to tensions and conflicts among its members, generating friction, disagreements and reunions throughout the development of the children. These, when they become adults, vary the ways of relating to their father, sometimes they are the ones who care for and accompany them during the aging process. Likewise, the care exercised by parents ranges from supporting in daily tasks, to advising and providing physical companionship, building affective relationships and mutual care, leading to a process of re-signifying gender identity for both the father and the son.
Keywords: care practices; paternity; adulthood; gender; marital separation.
Mild Acidic Charcoal Catalyzed Synthesis of 3,4-dihydropyrimidin-2(1H)-one/-thione Derivatives
Authors: Patil Rajendra , Chavan Jagdish , Patel Shivnath , Shinde Vaishali , Beldar Anil
Published: February 2023

A green and efficient method for the multicomponent synthesis of 3,4-dihydropyrimidin-2(1H)-ones and -thiones using acetic acid supported on activated charcoal as a mild acid catalyst in ethanol under both conventional as well as microwave irradiation conditions has been developed. The catalyst system found more efficient under microwave irradiation conditions than conventional conditions with shorter reaction times and excellent yields.