bluuebunny/crossref_metadata_2025 huggingface dataset:
An Enhanced VLC Channel Model for Underground Mining Environments Considering a 3D Dust Particle Distribution Model
Authors: Palacios Játiva Pablo , Azurdia-Meza Cesar A. , Sánchez Iván , Zabala-Blanco David , Dehghan Firoozabadi Ali , Soto Ismael , Seguel Fabian
Published: March 2022

Underground Mining (UM) is a hostile industry that generally requires a wireless communication system as a cross-cutting axis for its optimal operation. Therefore, in the last five years, it has been shown that, in addition to radio-frequency-based communication links, wireless optical communications, such as Visible Light Communication (VLC), can be applied to UM environments. The application of VLC systems in underground mines, known as UM-VLC, must take into account the unique physical features of underground mines. Among the physical phenomena found in underground mines, the most important ones are the positioning of optical transmitters and receivers, irregular walls, shadowing, and a typical phenomenon found in tunnels known as scattering, which is caused by the atmosphere and dust particles. Consequently, it is necessary to use proper dust particle distribution models consistent with these scenarios to describe the scattering phenomenon in a coherent way in order to design realistic UM-VLC systems with better performance. Therefore, in this article, we present an in-depth study of the interaction of optical links with dust particles suspended in the UM environment and the atmosphere. In addition, we analytically derived a hemispherical 3D dust particle distribution model, along with its main statistical parameters. This analysis allows to develop a more realistic scattering channel component and presents an enhanced UM-VLC channel model. The performance of the proposed UM-VLC system is evaluated using computational numerical simulations following the IEEE 802.1.5.7 standard in terms of Channel Impulse Response (CIR), received power, Signal-to-Noise-Ratio (SNR), Root Mean Square (RMS) delay spread, and Bit Error Rate (BER). The results demonstrate that the hemispherical dust particle distribution model is more accurate and realistic in terms of the metrics evaluated compared to other models found in the literature. Furthermore, the performance of the UM-VLC system is negatively affected when the number of dust particles suspended in the environment increases.
A Photolysis-Assist Molecular Communication for Tumor Biosensing
Authors: Sun Yue , Bian Huafeng , Chen Yifan
Published: March 2022

Molecular communication (MC) is a promising bioinspired paradigm for exchanging molecule information among nanomachines. In this paper, we propose a synchronization-assist photolysis MC system that aims to transmit the biosensing signal of the tumor microenvironment, facilitated by mitigating redundant molecules for improved bit error rate (BER) performance. Benefits from biocompatible MC, biosensors could transmit biosensing signals of the tumor in vivo instead of converting them to electrical signals. Due to diffusion motion’s slow and stochastic nature, intersymbol interference (ISI), resulting from previous symbols’ residual information molecules, inevitably occurs in diffusion-based MC. ISI is one of the challenges in diffusion-based MC, which significantly impacts signal detection. Inspired by on–off keying (OOK) modulation, the proposed modulation implements a switch of molecules and light alternatively. The light emitted is triggered by a synchronization signal, and the photolysis reactions could reduce the redundant molecules. An expression for the relevant channel impulse response (CIR) is derived from a hybrid channel model of diffusion and photolysis reaction. In this paper, we implement the maximum posterior estimation scheme to find the optimal decision threshold and analysis the BER performance in terms of different time intervals of the system. Numerical simulations demonstrate that the proposed method can improve the channel capacity and BER performance. We believe that our work may pave the way for MC application in biosensing.
Role of Academics in Transferring Knowledge and Skills on Artificial Intelligence, Internet of Things and Edge Computing
Authors: Dec Grzegorz , Stadnicka Dorota , Paśko Łukasz , Mądziel Maksymilian , Figliè Roberto , Mazzei Daniele , Tyrovolas Marios , Stylios Chrysostomos , Navarro Joan , Solé-Beteta Xavier
Published: March 2022

Universities play an essential role in preparing human resources for the industry of the future. By providing the proper knowledge, they can ensure that graduates will be able to adapt to the ever-changing industrial sector. However, to achieve this, the courses provided by academia must cover the current and future industrial needs by considering the trends in scientific research and emerging technologies such as Artificial Intelligence (AI), Internet of Things (IoT), and Edge Computing (EC). This work presents the survey results conducted among academics to assess the current state of university courses, regarding the level of knowledge and skills provided to students about the Internet of Things, Artificial Intelligence, and Edge Computing. The novelty of the work is that (a) the research was carried out in several European countries, (b) the current curricula of universities from different countries were analyzed, and (c) the results present the teachers’ perspective. To conduct the research, the analysis of the relevant literature took place initially to explore the issues of the presented subject, which will increasingly concern the industry in the near future. Based on the literature review results and analysis of the universities’ curricula involved in this study, a questionnaire was prepared and shared with academics. The outcomes of the analysis reveal the areas that require more attention from scholars and possibly modernization of curricula.
Application of Moire Profilometry in Three-Dimensional Profile Reconstruction of Key Parts in Railway
Authors: Ma Ruyu , Li Jinlong , He Kailang , Tang Tao , Zhang Yu , Gao Xiaorong
Published: March 2022

Moire profilometry (MP) is one of the three-dimensional (3D) topography measurement methods of structured light, which has the advantages of single frame reconstruction, high speed, no contact and high precision, and is suitable for dynamic measurement scenes. In this article, the digital MP is applied to the wheel tread measurement, the virtual grating is generated by computer to project to the object surface, the moire fringe pattern of the object is obtained by filtering, and finally the continuous phase pattern is obtained by phase unwrapping. The 3D shape reconstruction of the wheel tread is realized, and a new method of wheel tread detection is provided. At the same time, in this paper, the results of using different filters are compared, and the significance of the frequency domain filtering to MP is proved. It is necessary to choose a suitable filtering method according to different environmental conditions. At present, digital MP can be used in industrial static detection, and it can be extended to the dynamic detection of rolling wheels in the future, so as to improve the detection efficiency and realize the automatic detection of trains.
Accurate Prediction of Knee Angles during Open-Chain Rehabilitation Exercises Using a Wearable Array of Nanocomposite Stretch Sensors
Authors: Wood David S. , Jensen Kurt , Crane Allison , Lee Hyunwook , Dennis Hayden , Gladwell Joshua , Shurtz Anne , Fullwood David T. , Seeley Matthew K. , Mitchell Ulrike H. , Christensen William F. , Bowden Anton E.
Published: March 2022

In this work, a knee sleeve is presented for application in physical therapy applications relating to knee rehabilitation. The device is instrumented with sixteen piezoresistive sensors to measure knee angles during exercise, and can support at-home rehabilitation methods. The development of the device is presented. Testing was performed on eighteen subjects, and knee angles were predicted using a machine learning regressor. Subject-specific and device-specific models are analyzed and presented. Subject-specific models average root mean square errors of 7.6 and 1.8 degrees for flexion/extension and internal/external rotation, respectively. Device-specific models average root mean square errors of 12.6 and 3.5 degrees for flexion/extension and internal/external rotation, respectively. The device presented in this work proved to be a repeatable, reusable, low-cost device that can adequately model the knee’s flexion/extension and internal/external rotation angles for rehabilitation purposes.
Improved Optical Flow Estimation Method for Deepfake Videos
Authors: Nassif Ali Bou , Nasir Qassim , Talib Manar Abu , Gouda Omar Mohamed
Published: March 2022

Creating deepfake multimedia, and especially deepfake videos, has become much easier these days due to the availability of deepfake tools and the virtually unlimited numbers of face images found online. Research and industry communities have dedicated time and resources to develop detection methods to expose these fake videos. Although these detection methods have been developed over the past few years, synthesis methods have also made progress, allowing for the production of deepfake videos that are harder and harder to differentiate from real videos. This research paper proposes an improved optical flow estimation-based method to detect and expose the discrepancies between video frames. Augmentation and modification are experimented upon to try to improve the system’s overall accuracy. Furthermore, the system is trained on graphics processing units (GPUs) and tensor processing units (TPUs) to explore the effects and benefits of each type of hardware in deepfake detection. TPUs were found to have shorter training times compared to GPUs. VGG-16 is the best performing model when used as a backbone for the system, as it achieved around 82.0% detection accuracy when trained on GPUs and 71.34% accuracy on TPUs.
How Does the Carbon Tax Influence the Energy and Carbon Performance of China’s Mining Industry?
Authors: Zhu Runqing , Lin Boqiang
Published: March 2022

As the world’s largest energy consumer, China’s CO2 emissions have significantly risen, owing to its rapid economic growth. Hence, levying a carbon tax has become essential in accelerating China’s carbon neutralization process. This paper employs the two-stage translog cost function to calculate the price elasticity of the mining industry’s energy and input factors. Based on the price elasticity, the carbon tax’s influence on the mining industry’s energy and carbon performance is estimated. In the calculation of energy efficiency, the non-radial directional distance function is adopted. The results express that the carbon tax significantly decreases the mining industry’s CO2 emissions and promotes its energy and carbon performance. In addition to levying a carbon tax, the government should also strengthen the market-oriented reform of the oil and power infrastructure to optimize the mining industry’s energy structure.
Self-Supervised Graph Representation Learning via Information Bottleneck
Authors: Gu Junhua , Zheng Zichen , Zhou Wenmiao , Zhang Yajuan , Lu Zhengjun , Yang Liang
Published: March 2022

Graph representation learning has become a mainstream method for processing network structured data, and most graph representation learning methods rely heavily on labeling information for downstream tasks. Since labeled information is rare in the real world, adopting self-supervised learning to solve the graph neural network problem is a significant challenge. Currently, existing graph neural network approaches attempt to maximize mutual information for self-supervised learning, which leads to a large amount of redundant information in the graph representation and thus affects the performance of downstream tasks. Therefore, the self-supervised graph information bottleneck (SGIB) proposed in this paper uses the symmetry and asymmetry of graphs to establish comparative learning and introduces the information bottleneck theory as a loss training model. This model extracts the common features of both views and the independent features of each view by maximizing the mutual information estimation between the local high-level representation of one view and the global summary vector of the other view. It also removes redundant information not relevant to the target task by minimizing the mutual information between the local high-level representations of the two views. Based on the extensive experimental results of three public datasets and two large-scale datasets, it has been shown that the SGIB model can learn higher quality node representations and that several classical network analysis experiments such as node classification and node clustering can be improved compared to existing models in an unsupervised environment. In addition, an in-depth network experiment is designed for in-depth analysis, and the results show that the SGIB model can also alleviate the over-smoothing problem to a certain extent. Therefore, we can infer from different network analysis experiments that it would be an effective improvement of the performance of downstream tasks through introducing information bottleneck theory to remove redundant information.
Heisenberg Parabolic Subgroups of Exceptional Non-Compact G2(2) and Invariant Differential Operators
Authors: Dobrev V.K.
Published: March 2022

In the present paper we continue the project of systematic construction of invariant differential operators on the example of the non-compact algebra G2(2). We use both the minimal and the maximal Heisenberg parabolic subalgebras. We give the main multiplets of indecomposable elementary representations. This includes the explicit parametrization of the intertwining differential operators between the ERs. These are new results applicable in all cases when one would like to use G2(2) invariant differential operators.
SOUP-GAN: Super-Resolution MRI Using Generative Adversarial Networks
Authors: Zhang Kuan , Hu Haoji , Philbrick Kenneth , Conte Gian Marco , Sobek Joseph D. , Rouzrokh Pouria , Erickson Bradley J.
Published: March 2022

There is a growing demand for high-resolution (HR) medical images for both clinical and research applications. Image quality is inevitably traded off with acquisition time, which in turn impacts patient comfort, examination costs, dose, and motion-induced artifacts. For many image-based tasks, increasing the apparent spatial resolution in the perpendicular plane to produce multi-planar reformats or 3D images is commonly used. Single-image super-resolution (SR) is a promising technique to provide HR images based on deep learning to increase the resolution of a 2D image, but there are few reports on 3D SR. Further, perceptual loss is proposed in the literature to better capture the textural details and edges versus pixel-wise loss functions, by comparing the semantic distances in the high-dimensional feature space of a pre-trained 2D network (e.g., VGG). However, it is not clear how one should generalize it to 3D medical images, and the attendant implications are unclear. In this paper, we propose a framework called SOUP-GAN: Super-resolution Optimized Using Perceptual-tuned Generative Adversarial Network (GAN), in order to produce thinner slices (e.g., higher resolution in the ‘Z’ plane) with anti-aliasing and deblurring. The proposed method outperforms other conventional resolution-enhancement methods and previous SR work on medical images based on both qualitative and quantitative comparisons. Moreover, we examine the model in terms of its generalization for arbitrarily user-selected SR ratios and imaging modalities. Our model shows promise as a novel 3D SR interpolation technique, providing potential applications for both clinical and research applications.
Modern approach to the diagnosis and treatment of pyelonephritis
Authors:   City Hospital No. 5, Krasnoyarsk, Petrishcheva Olga Alekseevna
Published: March 2022

Pyelonephritis is an infectious and inflammatory lesion of the kidneys that occurs when pathogenic and opportunistic microflora spread from the underlying sections of the urinary tract. One of the most common pathogens is Escherichia coli. The disease occurs in women more often than in men, which is associated with structural features of the urethra and its anatomical proximity to the anus. According to statistics, 50–60 % of women have had an episode of urinary tract infection at least once in their lives. The main contingent of patients with pyelonephritis are women who are of reproductive age and have an active sex life. When called to the patient, the family doctor may hear the complaints of fever, rigors, pain in the lumbar region, frequent and painful urination. To establish the diagnosis, it is necessary to conduct a complete blood count and a urinalysis, as well as the Nechiporenko test, which shows an increased content of leukocytes. The main method of treatment is antibiotic therapy; as a rule, improvement occurs within the first two days. With the ineffectiveness of treatment and the development of resistance to antibacterial drugs, a transition to a chronic form is possible. Before the era of the discovery of antibiotics, this disease was considered deadly due to the high risk of developing septic complications, in particular, it was pyelonephritis that caused the premature death of the Russian Emperor Alexander III, who died in the Livadia Palace in the Crimea in 1894.
Recombinant coagulation factors and their use in clinical practice
Authors:   Lugansk regional Blood transfusion Station, the city of Severodonetsk, Olefir Irina Anatolyevna
Published: March 2022

As is known, fresh frozen donor plasma is a blood component, which includes thermolabile and thermostable coagulation factors. Indications for transfusion of fresh frozen plasma are conditions in which there is a deficiency of plasma coagulation factors — bleeding, overdose of indirect anticoagulants, disseminated intravascular coagulation syndrome in the hypocoagulation phase. However, there are conditions not caused by the deficiency of all clotting factors, but associated with a lack of any link. These conditions include the most common congenital hemophilia A (factor VIII deficiency) and hemophilia B associated with factor IX deficiency, von Willebrand disease, as well as rare coagulopathy caused by a deficiency of other coagulation factors (proaccelerin, proconvertin, factor XI, fibrinogen). In such situations, it is more appropriate to replace the missing blood factors with drugs obtained from donor plasma (plasma coagulation factors) or obtained by genetic engineering (recombinant coagulation factors). Recombinant coagulation factors (RCFs) are lyophilized preparations of glycoproteins that have the biological activity of a blood coagulation factor isolated from plasma and are intended for replacement therapy in diseases associated with disorders of the blood coagulation system. The use of recombinant coagulation factors, unlike plasma ones, completely eliminates the risk of transmission of bloodborne infections, and also makes it possible to establish production regardless of the presence or absence of donor plasma reserves. The development, production and use of recombinant coagulation factors is a completely new step in the development of hematology and the treatment of hereditary diseases, which include congenital coagulopathy.
A differentiated approach to the diagnosis and treatment of anemia of various origins
Authors:   Infectious Diseases Hospital No. 4, Ufa, Korobko Yuri Ivanovich
Published: March 2022

Anemia is a clinical manifestation of many diseases encountered in the practice of a primary care physician, which remains the reason for the high relevance of this problem at the present stage. Anemia is a condition in which the hemoglobin level drops below normal levels (120 g/l in women and 130 g/l in men), which leads to the development of hypoxemia and a deterioration in the supply of oxygen to tissues. Anemia is rarely an independent disease, a similar condition is observed in many chronic processes of infectious and non-infectious genesis, malignant neoplasms, micro- and macronutrient deficiencies, physiological and pathological blood loss, therefore, in such cases it is more correct to speak not about anemia, but anemic syndrome. Its development may be based on acute or chronic bleeding, deficiency of microelements and vitamins, hemolysis, malabsorption of microelements and vitamins, changes in metabolic processes in the liver and synthesis of erythropoietins, inhibition of bone marrow hematopoiesis, and many others. Clinical manifestations of anemia are very non-specific and are characterized by weakness, fatigue, decreased appetite, the development of shortness of breath, tachycardia, and sometimes dizziness, so the main diagnostic method is a complete blood count. Anemia may be hypochromic, normochromic, or hyperchromic, depending on the iron content of the red blood cells. Iron deficiency anemia is the most common in the practice of a family doctor; anemia that develops against the background of chronic diseases, malignant neoplasms and autoimmune processes ranks second.
Using laser in the treatment of chronic skin diseases
Authors:   Republican Clinical Hospital, Vladikavkaz, Stepchenkov Roman Petrovich
Published: March 2022

In most cases, the treatment of skin diseases, especially chronic processes, is a difficult task due to the low effectiveness of the traditional methods of treatment, the emergence of drug resistance, the development of frequent allergic and other adverse reactions. In total, the impact of the above factors has led to the need to find new ways and methods in the treatment of dermatological lesions. Against the background of using ultrasound, cryotherapy and magnetotherapy, good efficiency was also noted as a result of exposure to laser beams. For the first time, the laser began to be used to treat skin diseases about 40 years ago. When laser radiation is applied to the skin, the processes of photostimulation, photothermolysis and photodynamic reactions occur in its layers. Photostimulation processes began to be used to activate wound healing, and photodynamic reactions were used to treat acne vulgaris, vitiligo, psoriasis, urticaria, and lichen planus. At the same time, low-intensity laser radiation is used for therapeutic purposes, and high-intensity laser radiation is used in surgical practice, in particular, for the removal of warts, papillomas, and genital warts. The use of laser radiation in the treatment of skin diseases contributes to the activation of tissue respiration processes, a decrease in the activity of free radicals, and the stabilization of lipid complexes of cell membranes. In general, improvement in the condition after laser therapy is noted in 40–80 % of patients.
Legal means of ensuring the rights of employees to leave: a note to the accountant
Authors:   Training and Design Laboratory for Interdisciplinary Development of IT Competencies, Plekhanov Russian University of Economics, Lebedev V.A. , Lebedeva E.I. ,   Non-profit Partnership “Institute of Professional Accountants and Auditors of Russia”
Published: March 2022

The current legal mechanism for ensuring the right of employees to annual paid leave is considered, which corresponds to the employer’s obligation to ensure the implementation of this right in full compliance with the current labor legislation. The analysis of the application of administrative sanctions to the employer for non-compliance with the established requirements concerning the implementation of the employee’s right to annual leave is carried out. The tools that ensure a “balance of interests” of the parties to the employment contract in matters of the procedure for granting leave, including a collective agreement, a vacation schedule, the transfer of unused leave, compensation for unused leave when an employee is dismissed, are considered.
Industrial digital intelligent production safety training systems
Authors:   NIIPF TECHINTELL, Khalin E.V.
Published: March 2022

Industrial digital intelligent production safety training systems, embedded in the digital production of an organization, provide the formation of sustainable knowledge and skills in production safety using the organization's digital resources and simulation models of digital production.
Enterprise productivity and efficiency
Authors:   Plekhanov Russian University of Economics, Moscow, Bolshakova V.I. , Repnikova V.M. ,   Plekhanov Russian University of Economics, Moscow
Published: March 2022

The development of a market economy has led to the fact that improving the efficiency of activities has become very important for organizations of various forms of ownership. One of the most important factors in increasing efficiency is an increase in labor productivity.
Analysis of domestic and foreign practice of the organization of construction project cost management
Authors:   Moscow State University of Civil Engineering, Prokhorova Yu. S.
Published: March 2022

Domestic and foreign practice of the construction project cost management are analyzed in the article. The technique, recommended for the international application No. 18R-97 is provided. The matrix for the classification of the cost estimates, including five classes of the assessment, provided by the technique, is offered. The algorithm of application of the budget standards during various stages of forming of construction cost of the project is offered.
Management of the contractual relations among participants of construction production
Authors:   Vyatka State University, Ganebnykh E. V.
Published: March 2022

The complexity of the construction industry development was always defined (in addition to other problems) by the great number of participants of construction who directly or indirectly participate in construction production and affect its efficiency. Many defects during signing of the contracts of domestic construction practice are not eliminated still. Respectively, this subject does not lose relevance. The possibilities of the improvement of management of the contractual relations among the participants of construction production are considered in the article.
Аssessment of the effectiveness of tax benefits providedto investors in the Altai Republic
Authors: Glotko A. .. , Lyaskin G. ..
Published: March 2022

The article defines the essence of the concepts of "tax benefits" and "tax expenses", examines the problem of providing regional tax benefits on the example of the Altai Republic. The analysis of tax expenditures of the budget of the Altai Republic was carried out, the effectiveness of regional tax benefits and preferences for the period 2017-2019 was assessed. The assessment of the effectiveness of the provision of tax benefits and preferences to organizations participating in the implementation of the Investment program in the social sphere of the Altai Republic, having the status of social investors and not having such a status, but participating in the investment processes of the republic is given. Recommendations for improving the effectiveness of the application of tax benefits are proposed.
Transformation of the purposesof using derivative financial instrumentsin the modern economy
Authors: Guseva I. A.
Published: March 2022

Derivative financial instruments originated several centuries ago, but the explosive growth of their use begins with the last third of the twentieth century. Increased uncertainty, unpredictability of commodity prices, exchange rates, interest rates as the price of capital has led to the need to protect against financial risks. But as the financial economy develops, derivative financial instruments are used not only by financial institutions for the purpose of speculation and hedging, but also by financial engineers to carry out specific strategies, to solve complex business problems.
Data regarding the experimental manufacture of Roman objects made of domestic herbivores horns
Authors: Barbu Marius-Gheorghe
Published: March 2022

Processing hard animal materials in Roman times was an important occupation. In any Roman settlements there were certainly workshops where objects were being made out of the bones and horns of domestic animals. One such workshop was found on Insula 3 of the ancient Roman town named Colonia Dacica Augusta Ulpia Traiana Sarmizegetusa, and a similar case was registered in Histria. The workshop provided residual bone ends, cut segments, finished items, in the process of being made or discarded. Upon closer analysis, I found that the horny part of the cattle, sheep and goat horns are lost in time as they are 100% organic nature, this being the reason why in the Roman sites there are no artefacts made out of these horn parts. Experimental archaeology has helped to restore some parts of the bovine and goat horns, to see differences or similarities with antlers, in terms of processing. Thus, I made a comb, different chips for games, a hair pin, a pendant and a dagger button of bovine horn, as well as a dice and a needle of goat horn. After processing the horns of domestic animals, I could see that they can be altered by heat (so they can be shaped), that they are as suitable for making items as the horns of wild animals, that they have a pleasant translucent appearance and that they were certainly used by the Romans in making different types of objects.
Hyperandrogenic Dysfunction in Young Women: Diagnosis and Treatment Options in Gynecological Practice
Authors: Кириллова Е.Н.
Published: March 2022

Синдром гиперандрогении – симптомокомплекс, который характеризуется избыточными эффектами андрогенов в женском организме и включает в себя разнородные по патогенезу заболевания, которые могут проявляться сходной клинической картиной. Частота распространения гиперандрогенных состояний, по данным разных авторов, в пубертатном периоде составляет 6–10%. Актуальность этой проблемы для гинекологов заключается в том, что гиперандрогенные состояния сопровождаются нарушениями менструальной функции, приводят к бесплодию и невынашиванию беременности. В то же время в период становления менструальной функции менструальный цикл может быть ановуляторным, а умеренный гирсутизм и акне – физиологическим явлением. Это часто затрудняет диагностику и приводит к задержке начала лечения. В статье представлены общие сведения о наиболее частых состояниях, сопровождаемых гиперандрогенией: синдроме поликистозных яичников, неклассической форме врожденной дисфункции коры надпочечников, гипоталамическом синдроме пубертатного периода. В статье обсуждены особенности клинической картины, принципов обследования, критерии диагностики и дифференциальной диагностики гиперандрогенных состояний у подростков, сформулированы принципы ведения юных пациенток с риском формирования синдрома поликистозных яичников.

Hyperandrogenism is a complex of symptoms that is characterized by excessive effects of androgens in the female body and includes diseases that are heterogeneous in pathogenesis, which can manifest in a similar clinical signs. The frequency of distribution of hyperandrogenic states according to different authors in the puberty is 6–10%. The relevance of this problem for gynecologists is associated with hyperandrogenism is accompanied by menstrual dysfunction, lead to infertility and miscarriage. At the same time, during the formation of menstrual function and the menstrual cycle can be anovulatory, and moderate hirsutism and acne can be a physiological phenomenon. These factors contribute to difficulties in the diagnosis and delay the start of treatment. The article provides general information about the most common conditions caused by hyperandrogenism:polycystic ovary syndrome, nonclassic congenital adrenal hyperplasia, hypothalamic syndrome of puberty. The article discusses the features of the clinical signs, principles of examinations, diagnostic criteria and differential diagnosis of hyperandrogenic conditions in adolescents, formulates the principles of management of young patients with a risk of polycystic ovary syndrome.
Features of assessing the quality of medical care for patients with chronic heart failure of older age groups ()
Authors: Яковлев А.А. , Хавинсон В.Х.
Published: March 2022

В обзоре представлен анализ литературы по качеству медицинской помощи в целом и критериям их оценки. Основная дискуссия ведется в нескольких направлениях: какие индикаторы качества медицинской помощи существуют в настоящий момент, какие из них можно использовать у больных старших возрастных групп, какие индикаторы следует применять у данной категории пациентов. На основании обзора следует вывод о том, что существующие индикаторы качества не отражают особенностей оказания помощи лицам пожилого и старческого возраста с ХСН. Делается заключение, что многие вопросы до настоящего времени не решены и необходимы дальнейшие исследования по данной проблеме. Оценка качества медицинской помощи при ХСН, прежде всего у пациентов пожилого и старческого возраста, на наш взгляд, должна проводится с учётом возрастных особенностей и с применением дополнительных индикаторов качества, которые следует ввести в профильный приказ отдельным пунктом.

The review presents a literature analysis on the quality of medical care in general and the criteria for their assessment. The main discussion is conducted in several areas: what indicators are currently available; which of them can be used in elderly and senile age groups; what indicators should be used in this category of patients. Based on the review, it should be concluded, that the existing quality indicators do not reflect the specifics of providing care to elderly and senile people with chronic heart failure. It is concluded, that many issues have not yet been resolved and further research is needed on this issue. In our opinion, the assessment of the quality of medical care for chronic heart failure, primarily in elderly and senile patients, should be carried out taking into account age characteristics and using additional quality indicators, which should be introduced in a separate paragraph in the profile order.
Massive Passive: The Challenge of Incorporating Passive Energy Strategies in Developer Single-Family Suburban Housing
Authors:   Philadelphia University, Griffen Craig S.
Published: March 2022

Measurable success of sustainable energy systems in construction will require application on a sizable scale. However, wind and solar are still a very small percentage of building energy systems that rely heavily on fossil fuels. Single-family housing accounts for a huge amount of residential construction (theUS Census Bureau reports levels of over one million single family home starts per year) yet passive houses make up only a tiny percentage of overall housing construction. With housing development companies producing the vast majority of new house construction, this segment of the market is prime for applying passive strategies that can affect major change in energy conservation. Yet developers typically design entire subdivisions with no regard to orientation to sun, wind and thermal efficiency.Why have developers stayed out of the passive energy housing market and what would it take to convince them of the feasibility of sustainable single-family housing? And why aren’t architects more involved in suburban housing? Plenty of well-trained professionals who could lend their expertise have washed their hands of developer housing.
Detroit Types/All Together Again Speculation Over Detroit's Existing Landscape
Authors:   Universidad Central de Venezuela, Sanz Ricardo
Published: March 2022

This is an experimental academic experience based on Detroit that starts from an urban context on the verge of depopulation and, through the creation of a new partially sustainable community, promotes exploration of the architectonic program over diverse extents on the ways of inhabiting and their relation with productive activities that differ from traditional forms of social organization.
Single Point Incremental Metal Forming
Authors:   University of North Carolina at Charlotte, Beres Andrew , Stockhoff Paul ,   University of North Carolina at Charlotte, McCall Marlena , Beorkrem Christopher J. ,   University of North Carolina at Charlotte
Published: March 2022

Single Point Incremental Metal Forming(SPIMF) is a process that allows architectural panels to be incrementally formed from sheet metal into doubly-curved complex shapes using a robotic arm and a stylus-like end effector. SPIMF leverages industrial robots’ precision and strength by gradually pushing the end effect or into vertically supported sheet metal.This work was inspired by Anmar Kalo andMichael Jake Newsum’s Incremental SheetMetal Forming and CITA’s Stressed Skins project. SPIMF examined how different materials, tools, and tool path generation methods impact the finished quality of completed pieces along with applications for the formed metal parts. Once an understanding of howSPIMF worked, focus was put on how to accurately program the robotic arm to produce repetitive geometries that correspond with a digital model. By creating a feedback loop that studies how the sheet metal deforms and how accurately the robot performs the forming task, new and more accurate geometry can be used to program the arm.
A Studio Focused on Societal Challenges: Case Study on Placemaking and Resilience
Authors:   Lawrence Technological University, Kim Joongsub
Published: March 2022

This submission is based on the results of our architecture school’s multiphase project inDetroit from spring 2015 to spring 2016. The project’s central question was, “what would bean ideal studio model to help our students to address societal challenges frequently raised in two low-income study communities.” This project focused on two societal challenges:lack of social construction (an inability to shape their own community reality) and lack of resilience (an inability to bounce back after misfortune).
Designing for Rising Water A Competition Studio
Authors:   Louisiana State University, Erdman Jori E.
Published: March 2022

In this studio, students were challenged to address issues of rising water and community in a remote and unfamiliar place. Through research conducted in the field, in the studio and with the input of interdisciplinary experts, two teams created design proposals that challenged conventional thinking about resilience and what is possible in a coastal environment. The work was completed aspart of an invited design competition called Designing Resilience in Asia, sponsored by theNational University of Singapore. By applying their skills as designers, these US based students were able to respond to an unfamiliar culture and site in Manila, Philippines.
Afterhouse
Authors:   University of Michigan, Mankouche Steven Y.
Published: March 2022

Using the constant temperature of the earth Afterhouse is a new urban typology that transforms the concrete foundation of a derelict house into passive solar subterranean greenhouses allowing crops to be extended and moderated in temperate climates. By using readily available materials and techniques while maintaining the scale of the neighborhood, Afterhouse empowers a community to transform a blighted home into productive spaces for growing and celebrating food during the winter.
Apuntes sobre la universidad
Authors:   Universidad Autónoma de Zacatecas, Déniz Espinós José
Published: March 2022

La universidad representa la culminación del proceso de maduración intelectual y cumple un papel crucial en la vida social y cultural. Tradicionalmente, se ha caracterizado por formar los «recursos humanos» calificados que requieren los grupos dominantes y en esa ruta se ha promovido la movilidad social ascendente. En favor de la democratización social, durante las últimas décadas la enseñanza superior se ha masificado, pero en contraste se ha estado generando una oferta de trabajo calificado que excede a la demanda y los perfiles laborales del sistema productivo. Al tiempo en que se ha debilitado su contribución en la organización capitalista del trabajo, la universidad ha perdido capacidad innovadora, incluso se ha tornado reacia al cambio y continúa reproduciendo las jerarquías sociales propias de la estructura socio-económico-política de la que forma parte. El desencaje del papel histórico de la universidad en el desarrollo capitalista ha redundado en una disfuncionalidad institucional. De ahí la necesidad de abrir un debate abierto sobre el ciclo histórico de la universidad y las posibilidades de transformación en un contexto de desarrollo contradictorio.
La enseñanza de las ciencias socioambientales
Authors:   Universidad Autónoma de Barcelona, Martínez Alier Joan
Published: March 2022

Durante muchos años, mi tarea ha sido la de integrar el estudio de la economía ecológica y la ecología política dentro del campo de las ciencias ambientales y de las ciencias sociales. Con 20 años de experiencia en el Instituto de Ciencia y Tecnología Ambientales de la Universidad Autónoma de Barcelona (ICTA-UAB) y otros más en todo el mundo, me gustaría ofrecer algunos consejos para la enseñanza de las ciencias socioambientales. Este texto lo presenté con José Carlos Silva Macher en la Pontificia Universidad Católica de Lima en marzo de 2017 y lo he modificado en la Universidad Autónoma de Zacatecas.
Ser adolescente en la escuela: problemas y perspectivas sociopolíticas
Authors:   Universidad del Mar, Oaxaca, Toledo Sánchez Arcelia
Published: March 2022

Las políticas educativas oficiales han incrementado, en los últimos años, la crisis ha llevado a la calidad del proceso de aprendizaje a un mayor deterioro. El impacto en la reducción presupuestal, instaurado por las medidas políticas económicas neoliberales, tiene en una grave situación a los centros educativos, cuya consecuencia inmediata se refleja en el desarrollo de los educandos y en la situación laboral de sus maestros. El texto que aquí presentamos es una breve mirada, construida en forma colectiva, a partir de la experiencia realizada desde el aula con la escucha y la observación durante más de una década de trabajo en educación básica.
Biopolítica e institución educativa. Consideraciones actuales
Authors:   Universidad Pedagógica Nacional unidad Ajusco, Murga Meler María Luisa
Published: March 2022

La obra de Michel Foucault se caracterizó, desde la perspectiva de quien esto escribe, por la interrogación permanente, problematización incesante que, en algunos momentos, nos fue presentada como la palabra. Afortunadamente, esa palabra en voz de su autor, incluso, fue contra esos modos de reverencia. Así, irreverente y transgresora, la obra de Foucault, seria y problematizadora, nos ha permitido interrogarnos. Frente a lo extenso y profundo del horizonte que señala, es preciso acercarse a ella con estudio y disciplina, independientemente de que lleguemos o no a estar de acuerdo con el autor.
Obreros mexicanos atrapados: declarados «esenciales» para la economía estadounidense en ambos lados de la frontera
Authors:   Universidad Autónoma de Zacatecas, Cypher James M. , Crossa Mateo ,   Universidad Autónoma de Zacatecas,   Universidad Nacional Autónoma de México
Published: March 2022

En medio de la crisis sanitaria por la pandemia de covid-19, las corporaciones automotrices y aeroespaciales, respaldadas por el gobierno estadounidense, exigieron la apertura de las maquiladoras mexicanas al ser declaradas actividades «esenciales» para evitar la interrupción de la cadena de suministro de la industria estadounidense. Pese a la vulnerabilidad de los obreros mexicanos y sus familias, las autoridades mexicanas acataron esa determinación orientada a preservar los márgenes de ganancias, cuyo efecto secundario ha sido el incremento de contagios y mortandad en la zona fronteriza mexicana. Los acontecimientos develan que la condición de esencialidad sería para las corporaciones de la llamada «industria» automotriz y aeroespacial, junto a la minera, no así para los trabajadores ni para la población inmersa en una crisis sanitaria, y que la normalidad supone la continuidad de las condiciones de precarización y vulnerabilidad para los trabajadores mexicanos.
Signos vitales de la 4T: crisis, pandemia y populismo
Authors:   Universidad Autónoma de Zacatecas, Márquez Covarrubias Humberto
Published: March 2022

Una paradoja de la pandemia de COVID-19 es que siendo un fenómeno global se atiende como un problema nacional. Nos remite a una crisis múltiple de sanidad, economía, política, cultura y sociabilidad, pero que ha sido reducida a un fenómeno epidemiológico. En el imaginario político persiste el espectro de la soberanía de los Estados nación para afrontar un problema global que se expande allende las fronteras. En México, el abordaje de la pandemia, como otros problemas cruciales, ha sido errático, ambiguo y contradictorio. Su tratamiento guarda semejanza con los gobiernos populistas de Estados Unidos y Brasil, que niegan el problema. Pese al discurso de transformación social, el centro gravitacional del Estado mexicano ha sido la regeneración del presidencialismo, donde irradia la figura de un hombre fuerte sobre la sociedad civil. No obstante, la emergencia sanitaria y los problemas estructurales han puesto en predicamento el proyecto político en ciernes denominado «cuarta transformación» y a su vez han profundizado los rasgos subyacentes de una crisis civilizatoria de gran calado que develan la incapacidad estatal para atender la pandemia y su espiral de muerte; la crisis económica manifiesta en decrecimiento, desempleo y destrucción de capital; la agudización de la violencia criminal y los homicidios dolosos; la crisis del sistema educativo y el sector cultural, científico y académico, y los visos de una incipiente crisis política y de gobernabilidad que ponen en predicamento la pertinencia y continuidad del proyecto gubernamental.
Las políticas extractivas de López Obrador: ¿el fin del neoliberalismo o una continuación de «esa pesadilla»?
Authors:   Universidad Autónoma de Zacatecas, Tetreault Darcy
Published: March 2022

El 17 de marzo de 2019, menos de cuatro meses después de haber llegado a la presidencia de México, Andrés Manuel López Obrador declaró el fin del neoliberalismo en el país. En sus palabras: «Ya se terminó con esa pesadilla que fue la política neoliberal, declaramos formalmente desde Palacio Nacional el fin de la política neoliberal». La pregunta abordada en este artículo es: ¿de qué manera y en qué medida esta declaración se ha traducido en reformas concretas para regular las actividades extractivas y mediar los conflictos socioambientales en torno de ellas?
A la mitad del camino…
Authors:   Universidad Nacional Autónoma de México, Morales Josefina
Published: March 2022

El saldo neoliberal que recibió Andrés Manuel López Obrador en diciembre de 2018, con la privatización que desembocó en una desnacionalización, es inimaginable. En ese marco, el Tratado de Libre Comercio de América del Norte (TLCAN) fue el caldero hirviente de la corrupción y llevó a la pérdida de soberanía energética y alimentaria. Los nuevos ejes de la política económica y social son la recuperación de las empresas energéticas públicas, apoyos financieros a los sectores sociales más vulnerables y, en medio de la pandemia, la reconstrucción del sector salud.
Nuevos escenarios de la migración centroamericana: éxodo compulsivo de hondureños en tránsito por México hacia Estados Unidos(1990-2020)
Authors:   Investigador independiente, López Recinos Vladimir
Published: March 2022

En este trabajo se analizan los nuevos escenarios que presenta la migración centroamericana, en especial, el caso hondureño, que en los últimos años se ha vuelto un flujo compulsivo y vulnerable en el corredor migratorio de México hacia Estados Unidos. Con el análisis de cifras, la reproducción de bases de datos e información histórica recopilada y sistematizada se reconstruye un panorama pasado y contemporáneo de esa diáspora que durante su tránsito por territorio mexicano es objeto de violencia y xenofobia.