bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cerebrospinal fluid oculorrhea: A rare complication after orbital exenteration for cavernous sinus meningioma with orbital extension and radiation-induced hydrocephalus
Authors: Ichinose Toshiya , Sasagawa Yasuo , Yoshiki Kenji , Tamai Sho , Tanaka Shingo , Nakada Mitsutoshi 
Published: January 2025

Background:
Cavernous sinus meningiomas are rare, and radiotherapy is considered because the risk of postoperative complications is high. Radiotherapy is useful for short-term control of meningiomas, but hydrocephalus may appear as a long-term complication.

Case Description:
A 71-year-old male patient suffered from a cavernous sinus meningioma with orbital involvement and communicating hydrocephalus. Radiotherapy was administered thrice due to tumor progression. Right intraorbital meningioma increased markedly, and right eye bulging and visual deterioration were aggravating. Tumor removal with orbital exenteration was performed to prevent left visual impairment due to tumor progression. The pathology was atypical meningioma (WHO grade 2). Postoperative cerebrospinal fluid (CSF) leakage from the right orbit, so-called oculorrhea, was difficult to repair due to hydrocephalus, requiring eyelid sutures and a lumboperitoneal shunt. The tumor never developed into the opposite cavernous sinus.

Conclusion:
Radiation-induced hydrocephalus can lead to intractable postoperative CSF leakage from orbit after tumor removal with orbital exenteration and require surgery. In these cases, hydrocephalus treatment may lead to a cure for intractable CSF oculorrhea.
Perioperative management of craniopharyngioma resection through endoscopic endonasal approach in a super-super obese patient: A technical case report
Authors: Ogiwara Toshihiro , Sato Atsushi , Nakamura Kotaro , Wakabayashi Mana , Sasaki Tetsuo , Hanaoka Yoshiki , Hongo Kazuhiro 
Published: January 2025

Background:
The endoscopic endonasal approach (EEA) is increasingly used in minimally invasive surgeries for skull base lesions such as pituitary tumors. Although experienced facilities and neurosurgeons familiar with this technique can typically perform these surgeries routinely without special techniques or instruments, challenging cases can occasionally arise due to patient factors such as obesity. Here, we describe challenges encountered during neurosurgery in a patient with super-super obesity and introduce our unique technical nuances for management during tumor resection.

Case Description:
We report about a 47-year-old man with a body mass index of 62.24 kg/m2 who presented for neurosurgery with a diagnosis of craniopharyngioma, for which tumor resection using the EEA under general anesthesia was performed. While planning tumor resection using the EEA, several limitations due to extreme obesity were encountered as follows: (1) management of the respiratory and circulatory systems under general anesthesia, (2) non-feasible positioning on a standard operating table, and (3) complications with lumbar drain (LD) replacement to prevent post-operative cerebrospinal fluid leakage. These challenges were overcome through (1) multidisciplinary collaboration with anesthesiologists and cardiologists, (2) the set-up of two operating tables side by side, and (3) LD placement under awake status in the sitting position, respectively. With these innovations, total tumor resection was achieved using the EEA.

Conclusion:
This case highlights the successful use of the EEA along with unique technical adaptations in a super-super obese patient with craniopharyngioma, demonstrating the importance of innovation and problem-solving in overcoming surgical challenges.
Dural arteriovenous fistulas of the occipital sinus secondary to trauma: Two case reports and a review of the literature
Authors: Iampreechakul Prasert , Yuthagovit Sarunya , Wangtanaphat Korrapakc , Chuntaroj Songpol , Khunvutthidee Sirirat , Wattanasen Yodkhwan , Hangsapruek Sunisa , Lertbutsayanukul Punjama , Siriwimonmas Somkiet 
Published: January 2025

Background:
Intracranial dural arteriovenous fistulas (DAVFs) involving the occipital sinus (OS) are rare vascular anomalies characterized by abnormal connections between meningeal arteries and venous sinuses or cortical veins. Trauma and venous hypertension are recognized factors in the pathogenesis of DAVFs, with previous injuries to the venous sinus and subsequent angiogenic responses contributing to abnormal arteriovenous shunt formation. The OS’s variable anatomy and deep midline location add unique challenges to the diagnosis and treatment of DAVFs in this region.

Case Description:
We report two cases of OS DAVFs in patients with a history of remote cranial trauma. The first case describes a 36-year-old man with a 3-year history of progressive headache, recently worsening with severe headache, nausea, and vomiting. Imaging revealed a DAVF at the OS with cortical venous reflux. After an unsuccessful attempt at transarterial embolization, transvenous embolization achieved near-complete obliteration, and the patient remained asymptomatic at the 3-year follow-up. The second case involves a 54-year-old man with a history of a high fall. He initially presented with bilateral leg numbness and urinary retention, progressing to quadriparesis. Imaging demonstrated an OS DAVF with spinal venous congestion and cervical cord compression. Following an unsuccessful transarterial approach, he underwent a suboccipital craniotomy with OS ligation. Despite complete obliteration, he remained significantly disabled at the 1-year follow-up.

Conclusion:
These cases highlight the role of trauma in the development of OS DAVFs and the challenges associated with their management. Successful treatment often requires a combined approach due to complex arterial feeders and venous drainage patterns. Early intervention is crucial in preventing irreversible neurological deficits caused by prolonged venous congestion, emphasizing the need for timely diagnosis and individualized treatment strategies for DAVFs involving the OS.
COVID-19 AS A NOSOCOMIAL INFECTION
Authors: Vinokurova K. R. , Ivanov N. D. , Mitrofansky D. S. , Pivfnkin E. I. , Ttubacheeva T. S. , Tsydendorzhieva A. Z. , Malov S. I. 
Published: January 2025

Compared to the year of the COVID-19 (COronaVIrus Disease 2019) pandemic outbreak, the year 2023 witnessed an increased number of cases when patients with new coronavirus infection were transferred from non-infectious hospitals to infectious ones, which led to the assumption of the transition of SARS-CoV-2 (Severe acute respiratory syndrome-related coronavirus 2) infection to the category of nosocomial infections.Objective of the study: to study the dynamics of changes in the frequency of hospitalization of patients with a conﬁrmed diagnosis of COVID-19 in the Irkutsk Regional Infectious Diseases Clinical Hospital from noninfectious hospitals to conﬁrm the hypothesis about transition of the new coronavirus infection to the category of nosocomial infections.Materials and methods of the study. A retrospective analysis of 510 inpatient observation medical records of patients with a conﬁrmed diagnosis of COVID-19 who were admitted to the Irkutsk Regional Clinical Institution and were treated in 2020 (250 medical records) and 2023 (260 medical records) was carried out. Statistical processing of the study results was carried out using the data analysis package in Microsoft Excel and online calculators on the website https://medstatistic.ru/index.php. Statistical signiﬁcance was assessed at p≤0.05.Conclusion. The results obtained showed that over time the new coronavirus infection acquires features of nosocomial infections. This study demonstrates an increased average age of patients, as well as an increase in the number of patients with different comorbidities with a simultaneous shorter staying at hospital due to a decreased proportion of severely ill patients. In both the periods compared, women predominated among patients.
ИССЛЕДОВАНИЕ ПАРАМЕТРОВ И ПОКАЗАТЕЛЕЙ КОМБИНИРОВАННОЙ СИСТЕМЫ РАЗРАБОТКИ ПОЛОГИХ МЕСТОРОЖДЕНИЙ В ЗАВИСИМОСТИ ОТ МОЩНОСТИ ЗАЛЕЖИ
Authors: Соколов И.В. , Антипин Ю.Г. , Никитин И.В. , Соломеин Ю.М. 
Published: January 2025

Практика подземной разработки пологих месторождений бедных комплексных руд показала, что применение системы этажного принудительного обрушения с торцовым выпуском руды ведет к большим потерям и разубоживанию руды, что в свою очередь снижает рентабельность предприятия. Предложена комбинированная система разработки, сочетающая в одном добычном блоке этажно-камерную систему и систему этажного принудительного обрушения с торцовым выпуском руды. Разработаны три варианта комбинированной системы разработки, отличающихся конструкцией днища блока. Технико-экономическая оценка и сравнение вариантов комбинированной системы разработки при мощности залежи от 10 до 25 м, ширине камеры и междукамерного целика от 8 до 20 м и угле породной выпускной траншеи междукамерного целика от 55 до 65 градусов показало, что максимальная прибыль достигается при варианте, сочетающем камерную выемку с плоским днищем и этажное обрушение междукамерного целика на траншейное днище.
The practice of underground mining of flat deposits of low-grade complex ores has shown that the use of a forced level caving system with end release of ore leads to large losses and dilution of ore, which in turn reduces the profitability of the enterprise. A combined development system has been proposed, combining in one mining block a floor-chamber system and a system of forced level caving with end release of ore. Three variants of the combined development system have been developed, differing in the design of the block bottom. A technical and economical assessment and comparison of options for a combined development system with a deposit thickness of 10 to 25 meters, a chamber and inter-chamber pillar width from 8 to 20 m and an inter-chamber pillar rock outlet trench angle of 55 to 65 degrees showed that the maximum profit is achieved with the option combining a chamber recess with a flat bottom and a floor forced caving of the inter-chamber pillar onto a trench bottom.
РОЛЬ СИМПЛЕКСНОГО ПЛАНИРОВАНИЯ ЭКСПЕРИМЕНТА В СОВЕРШЕНСТВОВАНИИ ПРОГНОЗИРОВАНИЯ И ОПТИМИЗАЦИИ СОСТАВОВ МНОГОКОМПОНЕНТНЫХ СИСТЕМ РЕАГЕНТОВ-МОДИФИКАТОРОВ ПРИ ФЛОТАЦИИ МЕДНО-ЦИНКОВЫХ РУД
Authors: Хтет Зо.У. , Чжо З.Яа. , Горячев Б.Е. 
Published: January 2025

Проведено изучение возможности повышения эффективности извлечения ценных металлов из медно-цинковых колчеданных руд при их флотации с применением композиций медного, цинкового купоросов и сернистого натрия. В работе предложен подход к совершенствованию технологии флотации медно-цинковых колчеданных руд на основе симплексного планирования экспериментов и последующего математического моделирования составов смесей реагентов-модификаторов. Установлено влияние композиций выбранных модификаторов на флотируемость минералов меди, железа и цинка в концентрат. Представлены результаты экспериментальных исследований флотации медно-цинковой руды, а также выполнено сравнение полученных данных между различными экспериментами. Предложены расчеты коэффициентов уравнения регрессии для построения математических моделей. Разработаны математические модели и определены оптимальные составы смесей реагентов-модификаторов данного процесса. Разработанные математические модели позволяют прогнозировать оптимальные составы смесей реагентов-модификаторов с целью максимизации извлечения меди и цинка при одновременной минимизации извлечения пирита в концентрат. Предложенный подход предоставляет инструментарий для улучшения технологических параметров процесса флотации медно-цинковых колчеданных руд и повышения его эффективности.
The potential enhancement of valuable metal extraction from copper-zinc pyrite ores through flotation, using compositions comprising copper sulfate, zinc sulfate, and sodium sulfide, has been studied. The paper presents an approach aimed at enhancing the flotation technology of copper-zinc pyrite ores through the application of simplex experimental design and subsequent mathematical modeling of reagent-modifiers mixtures. The effect of the compositions of the selected modifiers on the floatability of copper, iron and zinc minerals in the concentrate has been established. The results of experimental studies on copper-zinc ore flotation are presented, and the obtained data are compared across various experiments. Additionally, calculations of regression equation coefficients are provided for the development of mathematical models. Mathematical models have been formulated to determine the optimal compositions of reagent modifiers in the process. These models facilitate the prediction of optimal mixtures, aiming to maximize the recovery of copper and zinc while concurrently minimizing the recovery of pyrite in the concentrate. The proposed approach offers a systematic framework for enhancing the technological parameters of the copper-zinc pyrite ore flotation process and increasing its efficiency.
Evaluation of artistic installations in urban spaces in Kosovo
Authors: Muharremi Ilir Hivzi , Muharremi Merita 
Published: January 2025

This paper deals with the art of installations in urban spaces in Kosovo. Evaluation of installations as art in relation to public spaces. How much do you decorate these spaces? How much does this art lose the value of architecture? Whether installations in public places in Kosovo have a real value? The paper is made on these research questions, resulting in the fact that the installations of famous Kosovar artists express personal, social and real themes of the time.
How much control do cities want to have over their public spaces: a look into mural regulation
Authors: Mendelson Shwartz Eynat , Mualam Nir 
Published: January 2025

In recent decades, murals have become a common phenomenon in urban landscapes, weaving artistic and cultural expressions into the city. They have become a major avenue for public expression, reflecting and influencing the social, political, cultural, and aesthetic values of the city. Some murals are created as acts of resistance while others are promoted by local governments as means of promoting urban development and social reconstruction. Because of their artistic character, location, and public exposure, murals incorporate tensions that present challenges to policymakers, owners, and those involved in their creation. For instance, murals are both a public and private phenomenon, situated in the public domain but located on specific properties and created by specific individuals.
Through the years, the importance of the visualization and design of urban environments has grown. Local governments are seen in many places around the world as responsible for the city's public spaces, taking on the role of regulators, mediators, and facilitators. Furthermore, they have the difficult task of balancing public and private rights and interests, such as maintaining public order and protecting individual rights and freedoms.
But do cities want to be able to control all of their public spaces? The answer to this question is not simple and contains many considerations. Their ability to control public spaces is a double-edged sword. On the one hand, as the level of control increases, local governments are granted stronger tools to shape their murals to better suit the city’s vision, but on the other hand, this ability may collide with the freedoms of property owners and artists, weakening the city's creative forces and emasculating informal activities.
In this paper we focus on the regulation of murals. We will look at the cities of Portland, which recently re-establish its mural policy and Tel Aviv, known for its many street art and graffiti. We will examine their approaches towards murals and who they view their role in governing public spaces, and address the amount of control they choose to have over the city's murals. By doing so, we will highlight the dilemmas local governments face when promoting mural policy and how mural policies affect the ability of property owners and initiators to promote murals. We believe this information will also aid artists and activists to better understand the framework in which they are working in and the decision-making process of municipalities.
ОСНОВНЫЕ ТЕНДЕНЦИИ РАЗВИТИЯ И ПЛАНИРОВАНИЯ ПРИМЕНЕНИЯ МАЛЫХ КОСМИЧЕСКИХ АППАРАТОВ И МНОГОСПУТНИКОВЫХ ОРБИТАЛЬНЫХ ГРУППИРОВОК НАБЛЮДЕНИЯ. ЧАСТЬ 1
Authors: ЗЕЛЕНЦОВ В А. 
Published: January 2025

Статья посвящена обзору основных направлений развития функциональных возможностей и способов применения малых (массой до 500 кг) космических аппаратов (КА) наблюдения земной поверхности, используемых в различных областях деятельности - мониторинг состояния природных объектов, управление агропроизводством, снижение негативных последствий чрезвычайных ситуаций, и т.д. Выделены основные тенденции развития характеристик малых КА (МКА) наблюдения с точки зрения изменения требований к технологиям планирования их применения по назначению К таким тенденциям относятся: миниатюризация элементной базы бортовых систем МКА с одновременным расширением их функциональных возможностей и повышением маневренности; формирование и все более широкое использование многоспутниковых орбитальных группировок (МСОГ) на базе МКА наблюдения; совместное применение МКА с крупногабаритными КА и другими носителями аппаратуры наблюдения; создание многофункциональной (мультисервисной) МСОГ, совместное решение задач по назначению и межспутникового информационного обмена.
The article is devoted to a main tends overview of development for functional capabilities and task planning methods of small (weighing up to 500 kg) Earth observation satellites (SEOS) used in various fields of activity - monitoring the natural objects state, managing agricultural production, reducing the negative consequences of emergencies, etc. The main trends in the development of SEOS characteristics are highlighted in terms of changing requirements for their task planning technologies. Such trends include: miniaturization of the SEOC onboard systems with simultaneous expansion of their functional capabilities and increase in maneuverability; formation and increasingly widespread use of satellite constellations based on SEOC; joint use of SEOC with large-sized satellites and other carriers of observation equipment; creation of a multifunctional (multiservice) satellite constellations, joint task and inter-satellite information exchange planning.
ПРЕДЛОЖЕНИЯ ПО КЛАССИФИКАЦИИ СПОСОБОВ РЕШЕНИЯ ЗАДАЧИ ОРБИТАЛЬНОГО ТЕХНИЧЕСКОГО ОБСЛУЖИВАНИЯ И РЕМОНТА
Authors: ХАМАТОВ А А. , СЛАТОВА Е В. 
Published: January 2025

Рассматривается задача по анализу и систематизации имеющихся наработок, с целью обозначения границ предметной области, уточнения отдельных базовых аспектов построения систем орбитального технического обслуживания и ремонта, а также определения вектора дальнейших научных исследований. Результаты решения указанной задачи могут послужить основой будущей методологии операций технического обслуживания и ремонта.
The task of analyzing and systematizing existing developments is considered in order to indicate the boundaries of the subject area, clarify certain basic aspects of the construction of orbital maintenance and repair systems, as well as determine the vector of further scientific research. The results of solving this problem can serve as the basis for a future methodology for maintenance and repair operations.
МОДЕЛЬ ОЦЕНИВАНИЯ ГОТОВНОСТИ ФУНКЦИОНИРУЮЩЕГО КОСМИЧЕСКОГО АППАРАТА К ИСПОЛЬЗОВАНИЮ ПО ЦЕЛЕВОМУ НАЗНАЧЕНИЮ НА ОСНОВЕ МАРКОВСКИХ ЦЕПЕЙ
Authors: ДАНИЛЮК Б А. , МИНАКОВ Е П. , СЛАТОВА Е В. 
Published: January 2025

В статье рассмотрен подход к использованию непрерывных цепей Маркова при оценивании готовности космических аппаратов к использованию по назначению. Готовность оценивается через поиск значений интенсивностей вероятностей переходов между возможными состояниями системы. Также предложен способ, обеспечивающий нахождение максимумов вероятностей наступления определенных состояний процесса функционирования системы.
The article considers an approach to the use of Markov chains in assessing the readiness of satellites for their intended use. Readiness is assessed by searching for the values of the intensities of the probabilities of translations between possible states of the system. A method is proposed that provides for finding the maxima of the probabilities of the occurrence of certain states of the system functioning process.
EXPLORING THE CIRCULAR ECONOMY: AN ANALYSIS OF LEADERSHIP, CORPORATE AWARENESS AND ORGANIZATIONAL CULTURE
Authors: Enes Randes de Faria , Durães Ricardo Silva Santos 
Published: January 2025

Objective: In alignment with the goals of the United Nations 2030 Agenda for Sustainable Development, particularly SDGs 3 (Good Health and Well-Being), 4 (Quality Education), 8 (Decent Work and Economic Growth), and 9 (Industry, Innovation, and Infrastructure), this study aims to explore three constructs: corporate awareness, purposeful leadership, and organizational culture.

Theoretical Framework: This section presents data found in reports by the WEF, Engaja S/A, OECD, UN and WHO on the main concepts associated with quality of life and organizational culture, found in authors such as Ashmos and Duchon (2000), Matos (2001), and Milliman, Czaplewski, and Ferguson (2003); Shein (2016) and others.

Method: The methodology used was the analysis of the Engaja S/A survey, a pioneering Brazilian indicator on corporate engagement launched in 2023, which assesses dimensions of a positive environment and trust in leadership..

Results and Discussion: The The results were compared with data presented in the 2023 revised report of the World Economic Forum (WEF). Findings suggest that solutions involve investing in behavioral competencies and fostering a sense of purpose, both individually and collectively, to enhance organizational performance.

Research Implications: The practical and theoretical implications of this research are discussed, providing insights into how the results can be applied or influence practices in the field of people management.

Originality/Value: This study contributes to the literature by presenting a positive and trusting environment in the leadership in the workplace, considering the personal purpose aligned with the organizational purpose.