bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of hemodynamic parameters based on the results of ultrasound Dopplerography in different variants of the position of vessels in the area of bifurcation of the common carotid arteries
Authors: Nikolenko V. N. , Moshkin A. S. , Khalilov M. A. , Bochkarev A. B. , Li Zh.
Published: July 2024

Introduction. Ultrasound imaging allows us to study the influence of topographic and anatomical variability of the main vessels of the neck on hemodynamic parameters in the area of bifurcation of the common carotid artery (CCA). Aim. To assess the significance of changes in hemodynamic parameters on the damage of the main arteries near the bifurcation of the common carotid artery in different variants of the mutual position of vessels according to the results of ultrasound Dopplerography. Materials and methods. 865 volunteers were examined using SonoAce R7 and Logiq F6. The results were summarized, systematized and processed in Microsoft Excel 2007 spreadsheets and subjected to statistical analysis. Among the participants, 5 main variants of the mutual position of the vessels were identified: A – typical; Б – the external carotid artery (ECA) is located ventrally; В – the lateral position of the external carotid artery; Г – divergence or intersection of the carotid arteries near bifurcation; Д – joint medial deviation of both carotid arteries. Results. A total of 1730 vascular complexes were evaluated. The smallest diameter of the external carotid arteries was observed in groups A and B – 3.10 mm. The largest value of the diameter of the internal carotid arteries (ICA) was in group D – 4.20 mm and in group B – 4.10 mm. The diameter of the common carotid arteries in groups A and B was 5.50 mm, in groups D and D – 5.60 mm, and in group B – 5.70 mm. The volume velocity of blood flow had higher values in group D. The lowest indicators of volumetric blood flow velocity were noted in group A, for common carotid and internal carotid arteries – in group G. Conclusions. The smallest average and median diameter of the external carotid arteries was observed in types A and B. The highest median diameter of the internal carotid arteries was in group D (4.20 mm). The median value of the diameter of the common carotid arteries was the maximum in group B (5.70 mm). The presented observation results demonstrate the effect of anatomical variation on the morphometric and functional characteristics of the vascular bed, reflecting the change in the calculated volumetric velocity of blood flow.
The role of preoperative D-dimer blood level in assessing the risk of open abdominal aortic surgery (statistical study)
Authors: Zaitseva Yu. A. , Bedrov A. Ya. , Moiseev A. A. , Kovalchuk Yu. P. , Kadinskaia M. I. , Popov G. I. , Martynenko G. I. , Rybakov G. V. , Khubulava G. G.
Published: July 2024

Introduction. Changes in the hemostasis and fibrinolysis system in patients with aortoiliac segment lesion can cause the development of specific thromboembolic and hemorrhagic complications, accompanied by a high level of mortality. Preoperative laboratory analysis of the D-dimer blood level may help to objectify the risk assessment of open surgery in this category of patients. Objective. Assessment of the significance of preoperative blood D-dimer level in predicting the development of morbidity and mortality after open surgery on the aortoiliac segment. Materials and methods. The study included 108 patients who were determined the D-dimer blood level before planned reconstructive intervention on the aortoiliac segment at the Pavlov University from 2013 to 2021. The first group consisted of 56 patients with aneurysmal aortoiliac segment lesions, and the second group included 52 patients with occlusive-stenotic lesions of the aortoiliac segment. Results. 92 (85%) patients had an increase of D-dimer level above 500 μg/L, among them 18 patients developed early postoperative complications, and 4 cases were fatal. In 16 (15%) patients with normal D-dimer levels, the postoperative the period was uneventful. Both groups showed statistically significant differences in preoperative blood D-dimer levels depending on the presence or absence of early postoperative complications. In the first group, the median of D-dimer level in the smooth course of the postoperative period was 2035 μg/L, and in patients with complicated course – 3770 μg/L (p=0.04), in the second group these indicators were 635 μg/L and 1231.5 μg/L (p=0.02), respectively. The threshold value of D-dimer level in predicting the risk of death in the first group was 4150 μg/L (p=0.001). Conclusion. The blood D-dimer level may be an additional laboratory risk factor for adverse outcome of open surgery in patients with aortoiliac occlusive disease.
Modern view on the role of pericytes in the microcirculation
Authors: Mikhailov P. V. , Muravev A. V. , Tikhomirova I. A. , Osetrov I. A.
Published: July 2024

Pericytes were discovered about 150 years ago and their name can be translated as enveloping cells. The location of pericytes on the outer wall of capillaries, the presence of appendages and close contact with neighboring endothelial cells of the capillaries resulted in the hypothesis of their participation in the capillary blood flow control. Over the last years, a large number of publications confirming this hypothesis have appeared. Moreover, the data accumulated to date indicate that pericytes are multifunctional cells and play a significant and sometimes key role in such processes as regulation of tissue blood flow, functioning of the blood-brain barrier, angiogenesis, vascular remodeling, and immune responses. The participation of pericytes in the pathogenesis of certain diseases has been shown and the potential for their use as targets for therapeutic effects has been demonstrated.
Advantages of the hybrid revascularization technique in the treatment of extended occlusions of the superficial femoral artery and multilevel lesions of the lower extremity arteries
Authors: Kuchay A. A. , Lipin A. N. , Kurianov P. S.
Published: July 2024

Introduction. Atherosclerotic lesions of the lower extremity arteries often have a multilevel character, the consequence of which is the disability of the population up to the development of post-ischemic necrosis. Conventional methods of surgical treatment of occlusion of the superficial femoral artery (SFA) and multilevel arterial lesions, however, are characterized by high traumatism causing an increase in mortality in this cohort of patients. Overcoming the above disadvantages required the development of alternative approaches, particularly hybrid revascularization. Objective. To analyze our own experience of the above-mentioned intervention in order to further evaluate its benefits. Material and methods. The study included 80 patients suffering from chronic limb-threatening ischemia (CLTI) with occlusion of the femoral-popliteal segment arteries >20 cm long. The subjects were divided into two equal groups depending on the type of surgery performed – autovenous femoral-popliteal bypass with endovascular correction of outflow channels (hybrid bypass) or autologous femoral-tibial bypass (FTB). We analyzed the clinical and demographic characteristics of the patients, technical features of interventions, as well as their direct and long-term effects. The assessment of the shunt patency was carried out using Kaplan-Meyer tables. The differences in indicators between groups were determined using the logarithmic criterion. Results. Thirty-day mortality among patients in the hybrid bypass group was 2.5% versus 4.3% in the second group (p>0.05). The frequency of graft failure is 5% versus 13%, respectively. A year after the operation, the primary shunt patency reached 77.7% (95% CI 61.7-93.7) in the first group. In the second group, this indicator was 57.1% (95% CI 42.9-71.3). One-year survival without amputation was 82.1% (95% CI 66.8-97.4) versus 69.6% (95% CI 56.1-83.1), respectively. The frequency of angiosomal revascularization in patients who underwent hybrid bypass surgery reached 90.0%. In the other group, the indicator was lower and amounted to 69.2% (p=0.006). Conclusions. The presented information proves the high efficiency of the investigated method of treatment.
Influence of the zoledronic acid accumulative effect on the microcirculation state in the rat periodontium
Authors: Petrosyan A. L.
Published: July 2024

Objective. To determine the character of changes in the reactivity of rat periodontal microvessels depending on the multiplicity of zoledronic acid administration. Material and Methods. Wistar rats (n = 36) were divided into groups of 9 rats each. In group No. 1 (control), rats were injected with 0.9% sterile sodium chloride solution once a week for 3 weeks; in group No. 2, rats were injected once with zoledronic acid (ZA) once a week; in group No. 3, rats were injected intravenously with ZA once a week for 3 weeks; in group No. 4, rats were injected with ZA once a week for 6 weeks. ZA was administered at a dose of 0.18 mg/kg in 0.9% sterile sodium chloride solution in the volume of 1 ml/kg. The microcirculation parameters in the periodontium were determined before ZA administration and on the 3rd day after administration by laser Doppler flowmetry (LDF) and ultrasound high-frequency dopplerography (UHFD) methods. Periodontal vascular reactivity was determined using acetylcholine assay. Results. After ZA administration, the indices of microcirculatory vascular reactivity decreased in rats of groups No. 3 and No. 4 in comparison with the results obtained before ZA administration: at ultrasound examination the maximum increase of blood flow velocity was noted at the 2nd minute and amounted to 133±8,5, 112±7,8 %, respectively. In rats of group No. 2, the increase in blood flow velocity corresponded to the value of the control group. In LDF study, the maximal blood flow rates were lower than in the control group in rats administered the drug for 3 and 6 weeks, respectively. Conclusion. Zoledronic acid dose-dependently causes impaired vascular responsiveness and leads to a decrease in endothelium-dependent vasodilation.
Feminism, Foundations, and Social Change: Understanding Women’s Philanthropic Nonprofits
Authors: Gillespie Elizabeth , Fletcher BJ
Published: July 2024

It is crucial to understand the role of feminism in addressing social issues, particularly with the prevalence of feminist causes today. This necessitates examining feminist organizations within public administration that strive toward equity, and gender and social equality. It is also crucial to understand those institutions that have influence and resources to invest in social change. The intersection of these topics is found in women’s grantmaking foundations and funds (WFFs). This research explores how these organizations are 21st-century feminist organizations, the type of feminism they embody, and their role in—and contribution to—social change. Feminist organizations aim to advance gender, social equality, and equity despite being overlooked in public administration, philanthropy, and nonprofit literature. This research utilizes an exploratory and descriptive design to shed light on the current state of feminist organizations and foundations in public administration, filling critical knowledge gaps.
L’Algorithmic Management. Reflexiones sobre la IA aplicada a los proceso civil y organización empresarial: perspectivas de derecho comparado con el ordenamiento jurídico italiano

Authors: Caruso Gianpaolo
Published: July 2024

Este artículo analiza, sin pretender ser exhaustivo, las posibles implicaciones en la configuración actual del uso de la IA aplicada a procesos de toma de decisiones como las decisiones en materia judicial y las adoptadas por el empresario, con la relevancia de la gestión del juez en el proceso civil en el primer caso y del empresario en el segundo.Sin embargo, un elemento central en el presente estudio parecen ser las razones asumidas y la interpretación de los hechos y de la ley, que es la solución que hace incalculables los derechos.
The evolution of Franco-Spanish relations in the late XVIII - early XIX centuries.
Authors: Morzheedov Vladislav Gennad'evich
Published: July 2024

The article examines the evolution of Franco-Spanish relations in the late XVIII – early XIX centuries. The subject of the study is the peculiarities of the development of relations between France and Spain, the analysis of various factors that influenced the diplomacy of the two countries. The object of the study is various treaties, armed conflicts and specific political steps characterizing Franco-Spanish relations. Special attention is paid to the role of the union of the two countries in the confrontation with Great Britain. The purpose of the study is to analyze the causes and consequences of changes in relations between France and Spain in the late XVIII – early XIX centuries. A special role in the evolution of Franco-Spanish relations is noted for the coup d'état of 18 Brumaire in France and the rise to power of Napoleon Bonaparte. The active foreign policy of Napoleonic France eventually resulted in a full-scale war on the Iberian Peninsula. The author uses chronological, historical-comparative and historical-systemic research methods in his work. These methods allowed to analyze the evolution of the Franco-Spanish relations in the late XVIII – early XIX centuries. Periods of military confrontation were interspersed with the time of the union of the two countries. There was a certain duality at the heart of the Franco-Spanish alliance. On an ideological level, most of Spanish society did not accept the ideas of the French Revolution. From an economic point of view, it was not profitable for Spain to enter into the Anglo-French confrontation. Ties with the Spanish colonies were disrupted. From the point of view of European politics, Spain, isolated by its geographical location, did not always benefit from an alliance with France, since it was an unequal partner in it. A special contribution of the author to the study of the topic is the proposed periodization of the history of Franco-Spanish relations of the late XVIII – early XIX centuries, its division into a number of stages. This makes it possible to better structure the work and identify the interrelationship of the changes that determined the nature of Franco-Spanish relations at each stage. The novelty of the research lies in the fact that in this work the evolution of Franco-Spanish relations in the late XVIII – early XIX centuries is considered as a whole and continuous process, the influence of domestic political events on changes in the foreign policy of the two countries is analyzed.
Three-Dimensional Radiation Analysis of the Hypersonic Jules Verne Reentry Spectra
Authors: Swenson Sara J. , Argrow Brian M. , Turansky Craig P.
Published: July 2024

The automatic transfer vehicle (ATV) Jules Verne, developed by the European Space Agency, played a crucial role in resupply missions to the International Space Station from 2008 to 2015. Following its resupply missions, Jules Verne was programmed to execute a planned destructive reentry into Earth’s atmosphere. To better understand the spectra generated by the Jules Verne, three-dimensional hypersonic flowfield and radiation analyses are performed at the 75 km trajectory point of the ATV. Results are compared to measurements obtained at 78 and 73 km by a miniature Echelle spectrograph operated from an airborne platform. Incorporating three-dimensional effects into the radiation analysis results in an overall reduction of the total radiation spectra and a decrease in atomic and molecular features, leading to a closer alignment between the observed and simulated values. Comparable effects are observed by making minor adjustments to the internal mode temperatures and modifying the model for the population of excited state number densities.
Return to Running After Manual Therapy for Chronic 16-year Cremaster Muscle Strain: A Case Study
Authors: Graham Eldon , Johnson Michael , Wong Christopher K.
Published: July 2024

BACKGROUND: Cremaster muscle strain (CMS) is an uncommon condition characterized by persistent testicular pain without clinical guidelines for conservative care. This case demonstrated how an applied anatomical analysis influenced the framework of care after which the patient had reduced pain and returned to running.

CASE PRESENTATION: The 32-year-old man had 16-years of unremitting CMS that began during high school cross-country training. His 5-8/10 intensity pain, aggravated by sexual or physical activity, limited his ability to sit for work >30 minutes or run. Manual therapy to mobilize anatomic structures potentially affecting cremaster muscle function was followed by graded return to running.

OUTCOME AND FOLLOW-UP: After 5 sessions, pain intensity had decreased to 0.5/10 at worst, hip flexibility and strength impairments had resolved, and he had returned to running without increased pain. His Chronic Prostatitis Symptom Index score improved from 19/45 to 8/45.

DISCUSSION: Anatomical analysis and the organized care framework led to sequenced treatment starting with body structures affecting the cremaster including mobilization of spinal and peripheral joints, and myofascial structures, followed by exercise and neuromotor training. Despite his condition’s chronicity, treatment culminated in return to running. This case informs the differential diagnosis of lumbo-pelvic-hip problems because concurrent CMS may be underreported. JOSPT Cases 2024;4(3):146-152. Epub 2 July 2024. doi:10.2519/josptcases.2024.0007
Early Rehabilitation With Blood Flow Restriction Therapy Following Arthroscopic Rotator Cuff Repair: A Case Report
Authors: Ponce-Fuentes Felipe , Cuyul-Vásquez Iván , Carranza Juan , Lluch Enrique , Calatayud Joaquín , Casaña José , Cook Chad , Struyf Filip
Published: July 2024

BACKGROUND AND PURPOSE: Rotator cuff tears are commonly addressed through arthroscopic surgical intervention and postoperative rehabilitation exercises. The addition of postoperative blood flow restriction therapy (BFRT) in patients with arthroscopic rotator cuff repair has not been described in the literature. The purpose of this case report was to describe the use of BFRT in the postoperative rehabilitation of a patient with arthroscopic rotator cuff repair.

CASE PRESENTATION: A 54-year-old male with an arthroscopically treated full-thickness rotator cuff tear completed a 12-week postoperative rehabilitation that included low-intensity resistance exercises with BFRT. Assessment was performed at baseline, at 6 and 12 weeks of treatment, and at 6 months follow-up. At baseline, the patient presented with a reduction in shoulder muscle thickness, strength, and active range of motion and reported shoulder pain and limited physical function.

OUTCOME AND FOLLOW-UP: At the 12th week of postoperative physical therapy discharge, the patient showed clinically significant improvements in biceps brachii muscle thickness, abduction and external rotation strength and range of motion of the shoulder, movement-evoked pain, and physical function.

DISCUSSION: The addition of BFRT to postoperative rehabilitation exercises may be a valuable therapeutic strategy in arthroscopically treated rotator cuff tears. Randomized clinical trials are needed to evaluate the efficacy of BFRT in patients with arthroscopic rotator cuff repairs. JOSPT Cases 2024;4(3):104-111. Epub 2 July 2024. doi:10.2519/josptcases.2024.0052
The Global Maritime Fulcrum and Its Repercussions on Indonesian Free and Active Foreign Policy (2014-2019)
Authors: BÜTÜN GİZEM , YANI YANYAN MOCHAMAD , BAINUS ARRY , SUMADINATA R. WIDYA SETIABUDI
Published: July 2024

This article aims to examine the realization of the Global Maritime Fulcrum (GMF) and its repercussion on “free and active foreign policy” in Indonesia, in the context of the country’s need for infrastructure investment and rising tensions due to China’s economic dominance through the Belt and Road Initiative (BRI). To achieve GMF’s five main pillars, primarily maritime connectivity, the Indonesian government has received a large amount of loans from Asia Infrastructure Investment Bank (AIIB) and allowed Chinese direct investment (CDI), including infrastructure investment such as Industrial Parks. However, there are concerns that this could endanger one of Indonesia’s fundamental foreign policies, which has been “free and active” since its independence. The research concludes that between 2014 and 2019, increased Chinese direct investment in Indonesia contributed to GMF, mainly through infrastructure investments and maritime connectivity, yet to employ GMF without violating free and active foreign policy, Joko Widodo’s approach was conducted through middle power strategy.
The female image of Dangyna in the linguistic picture of the Tuvan world
Authors: Khomushku M. R.
Published: July 2024

The  article  is  devoted  to  the  linguocognitive  analysis  of  the  image  of  Dangyna   in  the   linguistic picture of the Tuvan world. The aim of the article is to analyse the image of  Dangyna  in the  linguistic  worldview  of  the  Tuvan  people,  which  has  undergone  transformations  from  ancient  folkloric representations to fiction and modern reality.  Dangyna  is the daughter of the Khan, the bride of the main hero  in  epic  works.  In  the  popular  perception  of  the  Tuvinians,  Dangyna   appears  as  the  ideal  young woman, a companion of the hero, combining beauty, kindness and, despite her young age, intelligence,  inner strength and flexibility of character. Thus, the image of  Dangyna  reflects not only a fragment of the aesthetic vision of the Tuvan world, but also the social role of a woman, an assistant, an adviser to the hero, whose extraordinary wisdom allows her to inspire a man to military exploits, while remaining in the background of epic events. The image of the  Dangyna  in the traditional ethical and moral representations of  the  Tuvinians  has  feminine  virtues,  which  are  most  widely  revealed  in  epic  and  fairy-tale  folklore, transformed into myths. In modern works of fiction, the image of  Dangyna  manifests itself in two ways:   as a national standard of comparison for literary heroines; as a special character in fiction. The results  of an associative experiment and observation of contemporary events related to the spiritual and cultural values of Tuvan society show that modern ideas among speakers of the Tuvan linguistic culture mainly preserve  ancient  ideas  about  femininity  in  the  image  of  Dangyna.  The  result  of  the  analysis  showed   that  the  evaluative  component  of  the  image  helps  to  reveal  the  peculiarity  of  this  image.  Dangyna's  appearance and inner qualities complement each other, creating an ideal image of femininity in the popular imagination. The study is based on a linguocognitive analysis of Tuvan epics, fairy tales, non-fabulous prose, Tuvan fiction, the results of an associative experiment, and observations of modern social phenomena.
Feminicídio no telejornalismo e o fantasma da “mulher honesta”: narrativas que dificultam o enfrentamento à violência
Authors: Versiani dos Anjos Júlia C.
Published: July 2024

Este artigo tem como objetivo investigar que soluções são apresentadas para o problema da violência de gênero em rqeportagens sobre o tema do feminicídio no Brasil. Para isto, o presente estudo se baseia em um recorte de uma amostra mais ampla de mais de mil reportagens, concentrando-se, nesta oportunidade, em 14 conteúdos, produzidos entre 2018 e 2020 e veiculados em diversas regiões do país. Identificou-se que acaba por ocorrer uma seletividade em relação a um tipo de vítima, que é exaltada, em detrimento de outras, que são culpabilizadas pela violência sofrida. Explora-se, ainda, a ideia de que esta vítima considerada ideal pode ser interpretada como uma atualização da antiga figura da “mulher honesta”, a qual tem funcionado historicamente como uma poderosa ferramenta do ódio contra a mulher. Desta forma, a narrativa construída nas reportagens, embora se proponha a apresentar soluções, pode dificultar o enfrentamento ao problema do feminicídio e da violência de gênero.
Política de piedade na propaganda social sobre a violência doméstica contra a mulher
Authors: Antunes Viviani Ana Elisa
Published: July 2024

A política de piedade é um termo empregado pelo sociólogo Luc Boltanski para se referir ao discurso que trata do sofrimento a distância e ao modo como ele é transmitido na mídia a fim de engajar o espectador para a causa que apresenta. Segundo Boltanski, as produções midiáticas podem ser direcionadas conforme o objetivo que almejam: se forem para incentivar a denúncia, deve-se provocar a indignação do espectador focando na ação do agressor, se forem para despertar o sentimento de cuidado e enternecimento, deve-se focar na ação do benfeitor que alivia o sofrimento da vítima. O intuito deste trabalho, então, é investigar essa política de piedade recorrendo a três propagandas sociais que tratam da violência doméstica contra a mulher, sendo uma do governo brasileiro, outra do governo português e outra do governo britânico. Enquanto as propagandas brasileira e portuguesa incentivam a ação da denúncia, a do governo britânico incentiva a ação de benfeitores. A metodologia de análise dessas propagandas advém do trabalho de Lilie Chouliaraki, que amplia as reflexões de Boltanski e desenvolve três critérios para avaliar a produção midiática sobre o sofrimento a distância, sendo eles: a multimodalidade, a relação espaço-tempo e agência. Com base nesses critérios, foi possível avaliar cada campanha estudada e seu potencial para engajar o espectador para as causas apresentadas.
Servicio de atención y acompañamiento emergente a víctimas de violencia en Salamanca, México (víctimas indirectas de desaparición, homicidio y feminicidio)
Authors: Sánchez Ruiz Abraham , Camacho López Mario , Martínez Carrillo Eugenia L. , Prieto Gallardo César E. ,   Sistema para el Desarrollo Integral de la Familia
Published: July 2024

El artículo contiene un análisis del Servicio de Atención Emergente a Víctimas indirectas de homicidio, desaparición y feminicidio (SAAEV) desarrollado por el gobierno municipal de Salamanca, Guanajuato en México entre el año 2021 y 2024. Este programa es único a nivel municipal por los retos que impone a la administración pública. El objetivo es describir sus principales características, contexto de violencia donde surgió, perfil de los usuarios e identificación de sus principales problemas. La intención es someterlo a un grupo de investigadores expertos de la Red Internacional ALEC para proponer un conjunto de recomendaciones, asesoría y apoyo en la construcción de políticas públicas replicables con impacto social.
Machismo, violência doméstica e influência das mídias na cultura brasileira
Authors: GIANVECCHIO Larissa Angelini de Andrade , GONÇALVES Josiane Peres
Published: July 2024

Neste estudo problematizamos a questão do machismo, que é responsável por validar comportamentos que originam e corroboram com a violência doméstica, a ponto de resultar em um paradigma que perpetua na atualidade. Ao caminhar na contramão dessa situação, e valendo-se de mecanismos culturais que desconstroem o paradigma mencionado, investigamos o quanto as mídias brasileiras são agentes transformadores da realidade social, sobretudo por utilizarem as teledramaturgias como forma de conscientização da população. Nesta perspectiva, objetivamos analisar algumas contribuições das mídias no processo de desconstrução do paradigma do machismo e da violência doméstica no Brasil. A pesquisa bibliográfica aborda questões como: sociedade patriarcal e machismo; violência doméstica e legislação brasileira; Lei Nº 13.340/06 conhecida como Lei Maria da Penha; influência exercida pelas mídias na desconstrução do machismo e da violência doméstica, entre outras. Mediante o estudo realizado, percebemos que, a partir dos anos 2000, diversas teledramaturgias e propagandas abordaram questões inerentes à violência doméstica e ao machismo, apontando para a necessidade de superação dessa problemática social na cultura brasileira.
Y las mujeres.. ¿por qué matan?
Authors: Sotomayor Peterson Zonia , Mendívil Cháves Leonardo , Martínez Valdez Lydia
Published: July 2024

Este trabajo es parte de una larga investigación sobre el homicidio calificado y la violación y violación y homicidio que dio lugar a una serie de artículos sobre el tema. En este caso particular buscamos las razones que llevan a las mujeres a matar. Las entrevistas fueron realizadas en los Centros Penitenciarios del Estado de Sonora (México). Como todos sabemos, es la página roja de los periódicos la que suele mencionar estos datos, a menos que el o los crímenes sean tan espantosos que ameriten ser referidos como artículos extensos en las secciones frontales o principales de los diarios y, desde luego, no se analiza ni se reflexiona sobre el fenómeno de que, si bien es verdad que el colectivo masculino es el que comete más homicidios, los asesinatos cometidos por mujeres han tenido un incremento más que notorio.
Atomistics-consistent continuum models and pore-collapse-generated hotspot temperatures in energetic crystals I: beta-1,3,5,7-tetranitro-1,3,5,7-tetrazocane (beta-HMX)
Authors: Nguyen Yen Thi , Okafor Chukwudubem , Zhao Puhan , Sen Oishik , Picu Catalin R. , Sewell Tommy , Udaykumar H. S.
Published: July 2024

Hotspot formation due to pore collapse is a key mechanism for initiating detonation of shocked energetic materials. Energy localization at and around the pore collapse site leads to high-temperature hotspots, initiating chemical reactions. Because chemical reaction rates depend sensitively on temperature, predictive continuum models need to get the pore-collapse dynamics and resulting hotspot temperatures right; this imposes stringent demands on the fidelity of thermophysical model forms and parameters, and on the numerical methods employed to perform high-resolution meso-scale calculations. Here, continuum material models for beta-HMX are examined in the context of nanoscale shock-induced pore collapse, treating predictions from molecular dynamics (MD) simulations as ground truth. Using MD-consistent material properties, we show that the currently available strength models for HMX fail to correctly capture pore collapse and hotspot temperatures. Insights from MD are then employed to advance a Modified Johnson-Cook (M-JC) strength model form that captures aspects of shear strain and strain-rate dependency not represented by the standard JC form, but which are shown to be critical for accurately describing the nanoscale physics of shock-induced localization in HMX. The study culminates in a fully MD-determined strength model for beta-HMX that produces continuum pore-collapse results well aligned in all aspects with those predicted by MD, including pore-collapse mechanism and rate, shear-band formation in the collapse zone, and temperature, strain, and stress fields in the hotspot zone and surrounding material. The resulting MD-informed/MD-determined M-JC model should improve the fidelity of simulations to predict the detonation initiation of HMX-based energetic materials in microstructure-aware multi-scale frameworks.
ỨNG DỤNG PHÂN TÍCH MÔ HÌNH KHÔNG GIAN HÌNH THÁI VÀ VIỄN THÁM TRONG ĐÁNH GIÁ PHÂN MẢNH RỪNG TỰ NHIÊN Ở NAM ĐÔNG, THỪA THIÊN HUẾ
Authors: Lợi Nguyễn Văn , Thành Dương Văn , Hợi Nguyễn , Nguyên Hồ Đăng , Hùng Lê Thái
Published: July 2024

Phân mảnh rừng là một trong những mối đe dọa chính gây mất rừng và đa dạng sinh học rừng tự nhiên. Chúng tôi đánh giá tình trạng phân mảnh rừng tự nhiên diễn ra từ năm 2005 đến năm 2020 tại địa bàn nghiên cứu. Hai cảnh ảnh của vệ tinh Landsat 5 TM năm 2005 và Landsat 8 OLI năm 2020 đã được sử dụng đánh giá hiện trạng rừng cho từng thời điểm. Phân tích mô hình không gian hình thái dựa trên cơ sở GIS cũng được sử dụng để đánh giá và phát hiện sự thay đổi về phân mảnh rừng trong thời gian này. Rừng tự nhiên đã giảm từ 76,77 năm 2005 xuống còn 73,79% năm 2020, trong khi diện tích rừng trồng tăng lên đáng kể (16,55%). Phân tích phân mảnh rừng tự nhiên cho thấy sự suy giảm về diện tích bìa rừng, rừng khuyết lõi và rừng phân mảnh dẫn đến suy giảm diện tích rừng lõi. Nguyên nhân chính dẫn đến phân mảnh rừng là các hoạt động xâm lấn đất rừng và phát triển cơ sở hạ tầng.
Trafficking of mitochondrial double-stranded RNA from mitochondria to the cytosol
Authors: Krieger Matthew R , Abrahamian Melania , He Kevin L , Atamdede Sean , Hakimjavadi Hesamedin , Momcilovic Milica , Ostrow Dejerianne , Maggo Simran DS , Tsang Yik Pui , Gai Xiaowu , Chanfreau Guillaume F , Shackelford David B , Teitell Michael A , Koehler Carla M
Published: July 2024

In addition to mitochondrial DNA, mitochondrial double-stranded RNA (mtdsRNA) is exported from mitochondria. However, specific channels for RNA transport have not been demonstrated. Here, we begin to characterize channel candidates for mtdsRNA export from the mitochondrial matrix to the cytosol. Down-regulation of SUV3 resulted in the accumulation of mtdsRNAs in the matrix, whereas down-regulation of PNPase resulted in the export of mtdsRNAs to the cytosol. Targeting experiments show that PNPase functions in both the intermembrane space and matrix. Strand-specific sequencing of the double-stranded RNA confirms the mitochondrial origin. Inhibiting or down-regulating outer membrane proteins VDAC1/2 and BAK/BAX or inner membrane proteins PHB1/2 strongly attenuated the export of mtdsRNAs to the cytosol. The cytosolic mtdsRNAs subsequently localized to large granules containing the stress protein TIA-1 and activated the type 1 interferon stress response pathway. Abundant mtdsRNAs were detected in a subset of non–small-cell lung cancer cell lines that were glycolytic, indicating relevance in cancer biology. Thus, we propose that mtdsRNA is a new damage-associated molecular pattern that is exported from mitochondria in a regulated manner.
Entrevista com Mirian Ruffini
Authors: Ruffini Mirian , Luiz Tiago Marques , Da Silva Suellen Cordovil
Published: July 2024

Mirian Ruffini é docente de língua e literaturas de língua inglesa no campus Londrina da Universidade Tecnológica Federal do Paraná, lotada no DACHS. Na instituição onde atua, a entrevistada discute a influência da tradução em seu ensino de graduação e pós-graduação. Além disso, ela também está envolvida com a atividade tradutória, como se verá no breve  panorama sobre a entrevistada e sua relação com o campo dos Estudos da Tradução. Sua pesquisa de doutorado girou em torno dos paratextos de O Retrato de Dorian Gray, de Oscar Wilde, em traduções brasileiras, o que inicialmente despertou seu interesse pela tradução como objeto de pesquisa. A autora aprofunda essa relação na entrevista a seguir. Como pesquisa de pós-doutorado, a entrevistada escolheu João do Rio, autor brasileiro da estética decadente do século passado, que teve influência do próprio autor vitoriano em sua produção contística e foi tradutor da magnum opus do autor inglês. Da sua pesquisa de pós-doutorado, desenvolvida no programa de Pós-Graduação em Estudos da Tradução da Universidade Federal de Santa Catarina, resultou a tradução dos contos de João do Rio para a língua inglesa, publicadas em edição bilíngue pela editora Pontes em 2022.
Como construí uma casa: tradução da primeira publicação literária de Thomas Hardy
Authors: Da Silva Carlos César
Published: July 2024

Thomas Hardy foi um prolífico escritor inglês que viveu entre 1840 e 1928 — autor de romances, contos, poemas e uma peça. Trabalhando com arquitetos no início da vida adulta, enquanto se aventurava em composições literárias, sua primeira publicação foi o conto How I Built Myself a House, divulgado pelo periódico Chamber’s Journal em março de 1865, quando o autor tinha 24 anos. Apesar de a consolidação da carreira lhe ocorrer já aos mais de 50 anos, com romances trágicos que incitavam reflexões sobre a humanidade, a religião, a ciência, o matrimônio e a sociedade que lhe garantiam um certo desagrado pela crítica literária da época, esta primeira composição literária de Hardy apresenta um bom humor que antecede esse teor dramático de seus futuros trabalhos. O texto aborda as desventuras enfrentadas por um casal que pretende deixar para trás um lar nada prático e se mudar para a casa de seus sonhos. O protagonista e sua esposa, então, veem-se na necessidade de renunciar a muitas de suas idealizações durante a obra da nova residência, que também lhes gera problemas. Esta tradução brasileira de How I Built Myself a House é a primeira tradução da narrativa para a língua portuguesa.
Feasibility study of hybridizing a solar power plant with a small modular reactor for seawater desalination
Authors: Saleh M. M. , Abdelrazek A. A. , Mohammed A. F. , Kalyutik A. A. , Sokolova E. A.
Published: July 2024

The article discusses the technical and economic analysis of a seawater desalination plant, where the power source is a hybrid of solar and nuclear energy, as they are considered the cleanest energy sources compared to fossil fuel power plants. The source of nuclear energy in this study is a small modular reactor (SMR). This plant also uses a hybrid of seawater desalination systems: either a reverse osmosis plant with a multi-effect distillation (RO + MED) unit, or a reverse osmosis plant with a multi-stage flash distillation (RO + MSF) unit. Small modular reactors can be used for other applications besides generating electricity, as they produce high-temperature steam which can be used in many industrial processes such as hydrogen production and seawater desalination. Small modular reactors are also considered to be more cost effective, safer, more flexible and have a greater number of applications compared to high power reactors. The analysis is based on calculating the cost of producing of one cubic meter of fresh water using this hybrid desalination plant and comparing the results with those of desalination plant integrated with a power plant that uses exclusively nuclear energy as a source of thermal and electrical power, which uses the VVER-1200 reactor. Also, this study studies the impact of the degree of hybridization, that is, the ratio of power used from solar energy to power used from nuclear energy, on the cost of desalination of one cubic meter of water, as well as on the quality of the desalinated water.
Optimization of software-controlled machining of critical pipe fittings
Authors: Vinniychuk K. A. , Moiseenko A. A. , Podrezov N. N. , Tomilin S. A.
Published: July 2024

The quality requirements for pipeline fittings for NPPs and oil and gas facilities have become more stringent recently, which is related to ensuring their safe operation life. When manufacturing parts using subtractive machining technologies, special importance is attached to accuracy indicators of linear-angular dimensions and surface shapes. This study examines ways to optimize dimensional turning using the example of a “separator” part on a multifunctional CNC turning and milling center MULTICUT 630/2000S. Operations of designing and optimizing the production of parts are increasingly determined by the results of simulation modelling, virtual models, which, in fact, are an integral part of technological processes. In this work, simulation modelling is performed on simulators with CNC Sinumerik 810/840D/Operate Turn. This procedure is a simplified version of the Weiler-Atherton clipping algorithm as applied to stock removal turning. In addition to the algorithm, additional modules for dynamic corrections of control programs are proposed in order to guarantee the requirements of design documentation for accuracy in the conditions of a dynamic SPID system: machine – fixture – tool – part. The cutting speed, depth of cut and tool feed in turning have the greatest influence on the stock removal process from the technological control parameters. Modules of dynamic corrections of control programmes allow to estimate quite accurately the influence of control factors in turning (cutting speed, depth of cut and feed) on cutting force and machining accuracy.
Methods and means of ensuring the accuracy of bending deformation measurements of connecting pipe between the VVER reactor and the steam generator in the conditions of a fuel campaign
Authors: Krasnikov Yu. V. , Povarov V. P. , Stepanov A. M. , Fish S. G.
Published: July 2024

The welded joint zone (WJ) No. 111 is a welding unit for the "hot" collector of the primary coolant to the DN1200 steam generator nozzle. The experience of operation of steam generators PGV-1000M of NPP power units with VVER-1000 shows that the WJ zone No. 111 is prone to the formation and development of operational defects. According to the results of periodic non-destructive testing of the WJ No. 111 zone performed at the PG of various power units of the VVER-1000 NPP, cases of detection of extended planar-type discontinuities, including through ones, were repeatedly recorded. Thus, this zone is one of the most critical zones of the reactor plant (RU) with VVER -1000. The root cause of the formation and development of operational defects has not yet been identified. Solving the problem of cracking of WJ No. 111 steam generators of nuclear power plants with VVER-1000 is one of the priority areas for improving the safety of operation of the power unit during the over-design service life. This problem is determined by a complex combination of temperature conditions, mechanical and corrosive effects, is relevant and has not yet been definitively solved. Therefore, it is very important to ensure the collection of reliable data on the actual stress-strain state of the WJ No. 111 zone in various operating modes (pressure loading of steam generators, heating/cooling of the power unit, hydraulic testing of the 1st and 2nd circuits). The article reveals the approaches and stages of creating and applying a strain gauge installation to ensure metrological suitability in the conditions of a campaign fuel company at an NPP power unit by using an adequate physical model to obtain additive and multiplicative correction coefficients.
Artificial intelligence in teaching technical English to nuclear engineering students
Authors: Zarochintseva I. V. , Lupinogina Yu. A. , Zakharova L. V. , Kikinchuk O. A.
Published: July 2024

The paper considers the available artificial intelligence platforms used in the preparation of technical English assignments and the ways of motivation to learn a foreign language as the object of research. The processes of providing motivation for learning are chosen as the subject area. The objective of the research is to show the possibilities and spheres of AI use in foreign language teaching on the basis of analysing the information presented in the public domain about the existing ways of artificial intelligence application in foreign language teaching, as well as the conducted survey of nuclear engineering students. The methods used in the paper were theoretical analysis of scientific literature, analysis of periodicals, analysis of the practical use of AI in the work of teachers of the Department of Foreign Languages, as well as the data of the survey conducted among the students of technical specialities of VETI MEPhI. The main result of the research is the conclusion that the use of AI allows to diversify didactic material, provide motivation of students to master technical English and understand technological processes through the use of video content.
Jogos cooperativos: uma introdução ao valor de Shapley
Authors: Gil Bracarense Leite
Published: July 2024

O presente trabalho objetiva fazer um esforço introdutório de caracterização dos jogos cooperativos com uma atenção especial ao conceito de solução do valor de Shapley que tem suas propriedades descritas em detalhes. Para cumprir esse objetivo são apresentados exemplos teóricos que podem ser resolvidos tanto cooperativamente quanto não cooperativamente, possibilitando uma comparação direta entre as duas abordagens da Teoria dos Jogos. Além disso, são descritas tradicionais aplicações do valor de Shapley em problemas práticos – jogos de alocação de custos e jogos de votação – de forma a aprofundar a compreensão sobre este conceito de solução. Ao mostrar os aspectos introdutórios e a praticidade do valor de Shapley acredita-se que este trabalho possa servir de ponto de partida para futuras aplicações e discussões, uma vez que existem poucas obras no Brasil que tratam dos jogos cooperativos e seus conceitos de solução.
Content validity of an instrument for assessing skin lesions in a mother and child hospital
Authors: Aguirre Victória Campos de Souza Plasencia , Dória João Pedro da Silva , Melo Rosana Alves de , Fernandes Flávia Emília Cavalcante Valença , Mola Rachel
Published: July 2024

Objective: To describe the process of validating an instrument for assessing skin lesions in a maternal and child hospital. Methods: A methodological study of evidence of content validity was carried out between May and July 2022 in a mother and child service. The selection criteria for the experts were: being a nurse working in research or assisting patients with skin lesions. The instrument was sent by email via Google® forms, containing 23 items grouped into five topics on patient identification and hospitalization data, location and characterization of the lesions, and nursing care provided. The items were judged in terms of agreement using the Likert scale; qualitative evaluation of the instrument was also allowed, by including suggestions for the items presented. Results: Validation was carried out by 22 nurses using the Delphi technique, followed by reliability tests. All the items assessed obtained a level of agreement above 80%. Based on the score for each item, new tests were carried out to assess agreement with the instrument as a whole, resulting in the validation of its final version. Conclusion: The methodological validation process applied showed a high level of agreement, representing a cohesive instrument in the theoretical a...
Teachers’ perception of health, remote work, and the students’ situation during the COVID-19 pandemic
Authors: Justino Aline de Sousa , Cardoso Osmar de Oliveira , Sousa Roniele Araújo de , Lima Mykaelle Soares
Published: July 2024

Objective: To evaluate the teachers’ perceptions regarding their emotions, health and work, as well as the students’ situation, during the pandemic. Methods: Cross-sectional, quantitative and descriptive study, carried out with teachers from the public education network in the state of Piauí. The bivariate analysis model was applied using Pearson’s Chi-square test, considering the significance level at 5% to check associations and to analyze the reliability of the questionnaire. Internal consistency was calculated using Cronbach’s alpha coefficient. Results: Hopeless was the emotion most perceived by teachers. Conversely, they felt satisfied with their health and work. There was no influence of sociodemographic characteristics on perceived hopeless. In addition, they stated that they had good expectations when the pandemic was over. Regarding the students’ situation, it was identified that they partially agreed that there had been harm. Conclusion: Feeling hopeless during the pandemic was independent of the individual’s sociodemographic characteristics, as well as the teacher’s gender, age or race/skin color.