bluuebunny/crossref_metadata_2025_split huggingface dataset:
Structural and Rheological Controls on Hydrothermal Fluid Flux within Orogenic Gold Systems — Insights from the Oberon Deposit, Granites-Tanami Orogen, Australia
Authors: Crawford Andrew F. , Thébaud Nicolas , Masurel Quentin , Maidment David W. 
Published: December 2024

Abstract
The Oberon orogenic gold deposit within the Paleoproterozoic Granites-Tanami orogen provides insight into the evolution of mineralized hydrothermal systems and highlights critical controls on fluid flux. Here, we present the first detailed description of this economically significant deposit. We find that an interplay between rheological architecture, varying stress field, and hydrothermal fluid pressure significantly influenced the orientation, grade, and endowment of mineralization. Three discrete generations of mineralized veins are identified (V1/V1′OB, V2/V2′OB, and V3/V3′OB). Approximated stress field reconstructions based upon the vein arrays indicate that the Oberon deposit was subject to a low, yet variable, differential stress environment throughout its evolution. A regionally observable stress field reconfiguration between V1/V1′OB and V2/V2′OB vein development resulted in a transition from a transcurrent to a reverse shortening stress regime. This led to the generation of an incipient S2OB axial planar foliation, which was exploited by auriferous hydrothermal fluids. Critically, within the imposed reverse compressional stress regime, hydrothermal fluids were forced to attain supralithostatic pressures, and the resultant V2/V2′OB vein network forms the main stage of gold mineralization. The local abundance of all vein sets is controlled by rheological contrast, and most mineralized veins occur within rheologically competent siliciclastic sediments, especially where such units are juxtaposed against rheologically incompetent rocks such as altered mafic intrusions and carbonaceous mudstone.
Magmatic Controls on Au- and Ag-Rich Intermediate-Sulfidation Epithermal Deposits from Northeast China
Authors: Wang Le , Chiaradia Massimo , Qin Ke-Zhang , Hui Kai-Xuan , Li Zhen-Zhen , Cao Ming-Jian , Song Guo-Xue , Pang Xu-Yong , Shan Peng-Fei , Li Guang-Ming 
Published: December 2024

Abstract
Intermediate-sulfidation epithermal deposits are important not only for their significance in terms of Ag endowment but also for their close link with porphyry deposits. There are two subtypes of intermediate-sulfidation deposits, namely Au-rich (Ag/Au &lt;60) and Ag-rich (Ag/Au &gt;60). The tectonomagmatic factors that control the formation of either one of the two types have not been thoroughly examined. Here we investigated the degree of magmatic fractionation, magma oxygen fugacity, and F-Cl-S concentrations in the magmas, as well as their sources, for the magmatic rocks associated with four intermediate-sulfidation deposits (two Ag-rich: Baiyinchagan, Shuangjianzishan; two Au-rich: Naozhi, Zhengguang; all in northeast China) and found that the ore-forming magmas of our two Au-rich deposits in northeast China belong to the I type, whereas those of our two Ag-rich deposits are of the A type. Ore-forming magmas of our Au-rich intermediate-sulfidation deposits belong to the magnetite series and are less evolved, slightly more juvenile, more oxidized (ΔFMQ = 0.5 to 1.5; FMQ = fayalite-magnetite-quartz), more Cl rich, and more hydrous than magmas associated with the Ag-rich deposits. These features are typical of neutral-compressional thick magmatic arcs. By contrast, the ore-forming magmas of our two Ag-rich deposits belong to the ilmenite series and are more evolved, reduced (ΔFMQ &lt;0.5), moderately juvenile, more F rich, and less hydrous. They likely originated from prolonged differentiation of juvenile crust with heterogeneous and minor addition of sediment melts. These features are typical of a back-arc extensional regime developed within accreted juvenile arcs in northeast China. These findings provide a first-order framework for guiding early-stage porphyry-epithermal exploration of untested prospects.
Cenozoic Tectonic Reconstruction and the Initial Distribution of Porphyry Copper Deposits in the Sonoran Desert Region of Southwestern North America: Implications for Metallogenesis
Authors: Spencer Jon E. 
Published: December 2024

Abstract
The numerous porphyry copper deposits in the Sonoran Desert region of southwestern North America are mostly within the Basin and Range tectonic province where they have been displaced and dispersed by middle to late Cenozoic tectonic extension. Reconstruction of this extension, based largely on evaluation of displacements on low-angle normal faults associated with metamorphic core complexes, restores these deposits to their approximate positions at the end of Laramide orogenesis (~50 Ma). This restoration places the 39 largest known deposits in five linear belts, four of which trend easterly to northeasterly at high angles to the Laramide continental margin. The east to northeast trends of these four belts are interpreted to reflect elevated copper and molybdenum fertility in linear zones in the deep crust and/or upper mantle that parallel the tectonic fabric of the Paleoproterozoic Yavapai-Mazatzal orogenic belt.
‘In the group I have a voice, and parents’ voices get heard’: Exploring the experience of accessing peer support for parents with learning disabilities
Authors: Scott Ashley 
Published: December 2024

Over recent decades, there has been increased recognition of parents with learning disabilities’ rights to a good quality, meaningful life. However, these parents face many challenges such as stigma, socio-economic disadvantages, and less intergenerational support. In recent years, the UK has been impacted by local authority funding cuts which has led to a reduction in support available for parents with learning disabilities.There is a wealth of research exploring peer support for different groups of people. However, little is known about this type of support for parents with learning disabilities. Given what is known about the lack of support available for parents with learning disabilities, the hardships they face and the benefits of peer support for other groups, there is value to exploring the experience of accessing peer support for parents with learning disabilities.This study aimed to understand how parents with learning disabilities experience the process of engaging with peer support with other parents with learning disabilities, and what the perceived benefits and challenges may be. Eight participants who attend peer support groups for parents with learning disabilities completed a semi-structured interview.Results from reflexive thematic analysis revealed 12 sub-themes and five overarching themes: ‘wider context around support for parents with learning disabilities’, ‘the group is a safe place’, ‘being a part of the group provides a sense of belonging’, ‘being a part of the group provides a sense of purpose’ and ‘group provides platform for empowerment’.The findings highlight numerous benefits experienced by these parents as a result of attending these peer support groups including experiences of safety, connection, belonging, personal growth, purpose, and empowerment. The findings reveal the main challenge is a lack of funding, which adds emotional strain to group members and uncertainty about the future of these groups. Clinical implications, methodological strengths and limitations and suggestions for future research are discussed.
String Stable Bidirectional Platooning Control for Heterogeneous Connected Automated Vehicles
Authors: Pan Dengfeng 
Published: December 2024

Article
String Stable Bidirectional Platooning Control for Heterogeneous Connected Automated Vehicles

Dengfeng Pan *

School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, VIC 3122, Australia
* Correspondence: E-mail: dengfengpan@swin.edu.au

Received: 8 August 2024
Accepted: 18 September 2024
Published: 27 December 2024

Abstract: In vehicular platoons, disturbances can be amplified significantly downstream in the platoon if not adequately addressed, potentially leading to traffic jams or collisions. This paper tackles the challenge in maintaining string stability of heterogeneous vehicular platoons under a bidirectional communication topology and a refined constant time headway spacing policy. First, unlike the commonly used constant spacing policy and constant time headway policy, a refined constant time headway policy that combines the benefits of constant spacing and constant time headway policies is presented to enhance platooning safety while maintaining traffic efficiency. Second, a distributed adaptive estimator is designed such that each follower ensures its real-time estimation on the inaccessible leader's full states. The proposed estimators also well accommodate the heterogeneity among vehicles, allowing distinct inertial lag parameters of the vehicle longitudinal dynamics. Third, leveraging a bidirectional communication topology, a distributed scalable platoon controller is developed to guarantee the desired individual stability and string stability requirements of the vehicle platoon without the need of any global information of the communication topology. Formal sufficient conditions are provided on the existence of the desired estimator and controller gains. Finally, numerical simulations are conducted to verify the efficacy of the derived theoretical results. The simulations highlight the string stability and superiority of the proposed spacing policy, demonstrating the effectiveness of the proposed platooning control method.
Методичний підхід щодо організації процесу прицілювання некерованими авіаційними ракетами без візуального контакту з цілью
Authors: Перескоков Володимир , Корень Андрій , Вабішевич Олена 
Published: December 2024

У статті розглянуто процес прицілювання під час стрільби некерованими авіаційними ракетами з кабрування без візуального контакту з ціллю.
Показано, що для підвищення точності стрільби при польоті на малих висотах необхідно розглядати два основних напрями: дотримання режиму польоту під час виконання складних елементів пілотування вертольотів для атак наземних цілій з кабрування та комплексне використання удосконалених бортових прицільно-навігаційних систем та їх складових.
Запропоновано шляхи використання варіантів бойового застосування некерованих авіаційних ракет:
застосування бортових прицільно-навігаційних комплексів та їх складових, які забезпечують позиціонування та кутове визначення в просторі за супутниковими системами GPS/GLONASS/Galileo/BeiDou з одночасною обробкою сигналів в двох діапазонах частот;
відтворення зображення карти місцевості з відображенням точки цілі та розрахованої точки центру розсіювання на екрані з урахуванням положення у просторі та еволюцій вертольота, що дозволить вести прицільну стрільбу з кабрування на малих висотах з одночасним збільшенням дальності прицільної стрільби.
A goat found in the relics of Ar Gunt of research on the skull some results
Authors: Mandakh Davaasuren 
Published: December 2024

2022, in Songinokhairkhan district of Ulaanbaatar city, the team of Mongolian-Hungarian joint project “Study of the relationship between the Asian Hunnu” in 2022 excavated 7 memorial related to the Hunnu period in the area called Ar Gunt. Bones of animals, wild animals and dogs of varying levels of preservation were found in these memorial. The small number of goat bones found in this site were determined by the shape of the horns to identify the breed of goat they belonged to.
Ар гүнтийн дурсгалаас илэрсэн ямааны толгойн ясан дээр хийсэн судалгааны зарим үр дүн
Хураангуй: 2022 онд Улаанбаатар хотын Сонгинохайрхан дүүрэгт Монгол-Унгарын хамтарсан “Азийн Хүннүчүүдийн харилцаа хамаарлын судалгаа” төслийн баг 2022 онд Ар гүнт хэмээх газарт Хүннүгийн үед холбогдох 7 дурсгал малтан судалсан байна. Эдгээр дурсгалуудаас хадгалалтын түвшингээр өөр хоорондоо ялгаатай мал, зэрлэг амьтан болон нохойн яс илэрч олдсон юм. Энэхүү дурсгалаас илэрсэн цөөн тооны ямааны ясыг эврийн хэлбэрээр нь ямар үүлдрийн угсаа гаралтай ямаа болохыг тодорхойлохыг зорьсон судалгааны товч үр дүн юм.
Түлхүүр үг: Морфологи хэлбэр судлал, Физиологи бие судлал
Torus palatinus and torus mandibularis in skeletal remains from Xiongnu and Medieval period
Authors: Bayarsaikhan Misheelt 
Published: December 2024

Oral tori are bony growth present in the oral cavity and are not considered as pathological lesions. Smaller tori do not cause any problems, but larger sized tori can result in significant problems. The aim of this study was to determine the prevalence of torus palatinus (TP) and torus mandibularis (TM) in the two historical periods Xiongnu and Medieval period. A total of 90 skeletal remains were examined from both the Xiongnu (n=53; 25 male, 23 female, 5 child) and the Medieval periods (n=37; 13 male, 19 female, 5 child), which stored at the Human Bone Collection of the Institute of Archaeology, MAS. A total of 8 Xiongnu individuals (15%) and 5 Medieval period individuals (13.5%) presented with TM, while 5 Xiongnu (9.4%) and 2 Medieval period individuals (5.4%) had TP. In both historical periods, TP and TM were more common in the 20-39 age group and more frequent in males than females. The correlation between the torus palatinus and the torus mandibularis is statistically significant at 0.01 level. The results of the present study demonstrate that the prevalence of tori in the studied Xiongnu and Medieval populations is low. There is a tendency for the prevalence of tori to increase with age, although this is not a statistically significant trend.
Хүннү болон Дундад зууны үеийн хүний ясан дээрх эрүү ба тагнайн торус
Хураангуй: Амны хөндийн торус нь амны хөндийд ажиглагддаг ясны ургалт бөгөөд энэ нь өвчлөлд ордоггүй байна. Жижиг хэмжээтэй торус нь тухайн хүний амьдралын чанарт нөлөөлдөггүй ба харин томоохон хэмжээтэй торус нь хэл ярианы хөгжилд нөлөөлөх зэргээр өдөр тутмын амьдралд хүндрэл учруулах боломжтой. Энэхүү судалгааны зорилго нь Хүннүгийн болон Дундад зууны үе дэх тагнайн торус болон эрүүний торусын тархалтыг тодорхойлох явдал юм. Уг судалгаанд ШУА-ийн Археологийн хүрээлэнгийн хүний ясны сан хөмрөгт хадгалагдаж буй Хүннү (n=53; 25 эрэгтэй, 23 эмэгтэй, 5 хүүхэд) болон Дундад зууны үеийн (n=37; 13 эрэгтэй, 19 эмэгтэй, 5 хүүхэд) нийт 90 палеоантропологийн хэрэглэгдэхүүнийг хамрууллаа. Судалгааны үр дүнд Хүннүгийн 8 бодгаль (15%), Дундад зууны үеийн 5 бодгаль (13.5%) нь эрүүний торусын эмгэгтэй байсан бол Хүннүгийн 5 бодгаль (9.4%), дундад зууны үеийн 2 бодгаль (5.4%) нь тагнайн торустай байжээ. Судлагдсан түүхэн үеүдэд тагнайн торус болон эрүүний торус 20-39 насны бүлгийнхэнд түгээмэл тохиолдож байгаа бөгөөд хүйсийн хувьд эмэгтэйчүүдээс илүү эрчүүдийн дунд илүү ажиглагдаж байна. Тагнайн торус болон эрүүний торус хоорондын хамаарал статистикийн хувьд 0.01 түвшинд байна. Энэхүү судалгааны үр дүнд судлагдсан Хүннү болон Дундад зууны үеийн хүн амд торусын тархалт бага байгааг харуулж байна. Торусын тархалт нас ахих тусам нэмэгдэх хандлагатай байдаг ч энэ нь статистикийн хувьд ач холбогдолтой хандлага биш юм.
Түлхүүр үг. Тагнайн торус, эрүүний торус, Хүннү, Дундад зууны үе
Analysis socio-spatial segregation by the index of social exclusion: the case of Ulaanbaatar city
Authors: Yondon Undral 
Published: December 2024

The aim of the paper is to analyze spatial segregation using the method of social exclusion index and explain its results. Spatial separation was first developed by Chicago School students using the example of an American city and developed a approach to urban ecology. According to this concept, urban residents tend to live in clusters due to certain characteristics. Some researchers in Mongolia have studied and published studies of this phenomenon. The most interesting research is the World Bank's Urban Poverty Programme. According to the results of the study, the Kharoos were released in 2016 where multidimensional poverty clustered in the capital. The lowest poverty regions are mainly located in central cities, and the deepest poverty regions are Songino-Hazar Khan, Benassurk, and Khan-Uul. We examined spatial segregation in the capital with the help of social exclusion indexes. The index includes 12 indicators, including the economic situation of households, working conditions, people's ability to save and increase human capital, consumption and leisure time. In central cities, exclusion is relatively low, but increases closer to suburbs. At the same time, the level of education of residents and the number of people who are regularly employed increases as they approach the city centre.
Хотын сегрегцаийг нийгмийн тусгаарлагдмал байдлын индексээр шинжлэх нь: Улаанбаатар хотын жишээн дээр
Хураангуй:
Энэхүү өгүүлэлд нийслэл хотын хөгжлийг тооцох 86 бүлэг үзүүлэлт бүхий индексийн нэг үзүүлэлт болох улсын эрүүл мэндийн байгууллагын тусламж, үйлчилгээний чанарын индексийг тооцоход ашигласан арга зүй, судалгааны үр дүнг танилцуулна. Улсын эрүүл мэндийн тусламж, үйлчилгээний чанарын индексийг улсын эрүүл мэндийн тусламж, үйлчилгээний хүртээмжийн дэд индекс, эрүүл мэндийн даатгалд хамрагдалтын дэд индекс, эрүүл мэндийн даатгалын ашиглалтын дэд индекс, улсын эрүүл мэндийн үйлчилгээний шуурхай байдлын дэд индекс, улсын эрүүл мэндийн байгууллагын боловсон хүчний бэлэн байдлын дэд индекс, эрүүл мэндийн тусламж үйлчилгээний бэлэн байдлын дэд индекс, эрүүл мэндийн байгууллагын тохижилт, тоног төхөөрөмжийн бэлэн байдлын индекс, улсын эрүүл мэндийн байгууллагын тусламж үйлчилгээний чанарын индекс, эмчилгээний үр дүн дэх сэтгэл ханамжийн үнэлгээний дэд индекс гэсэн 9 дэд индексээр тооцсон.
Судалгааны дүнгээр дэд индекс бүрийн үзүүлэлт харилцан адилгүй нэлээд зөрүүтэй байх бөгөөд Улаанбаатар хотын улсын эрүүл мэндийн байгууллагын тусламж, үйлчилгээний чанарын нэгдсэн индекс хувийн эрүүл мэндийн байгууллагын тусламж, үйлчилгээний чанарын индекс болон нийслэлийн эрүүл мэндийн байгууллагын тусламж үйлчилгээний нэгдсэн индексээс доогуур байв.
Tүлхүүр үгс: нийслэл, эрүүл мэнд, эрүүл мэндийн даатгал, бэлэн байдал, эрүүл мэндийн байгууллага
Dimensionamento do bulbo de ancoragem de tirantes metálicos em solos arenosos e argilosos
Authors: Conceição Cleide Moreira de Azevedo , Sánchez Filho Emil de Souza 
Published: December 2024

Este trabalho apresenta uma análise dos métodos Budhu (2013), Bustamante e Doix (1985), Costa Nunes (1987) para cálculo do bulbo de ancoragem de tirantes metálicos ancorados em solos granulares e argilosos. O estudo comparativo inclui também a modelagem no programa Plaxis 2D. Algumas etapas que antecedem o dimensionamento tais como: a caracterização do solo, a definição do plano de escorregamento e a determinação da posição do plano de ancoragem adequado não serão abordadas nesse estudo. Para o dimensionamento serão utilizados em todos os métodos os mesmos parâmetros geométricos tais como diâmetro, comprimento e a mesma profundidade do centro do bulbo de ancoragem. Entretanto, para o método computacional incluem-se o coeficiente de Poisson, permeabilidade do solo, as etapas e o tempo de escavação. Buscou-se reproduzir as condições existentes no local de execução do bulbo. Os resultados obtidos permitem uma avaliação da capacidade do bulbo de ancoragem de transferir as cargas ao solo, bem como se o fator de segurança atende às solicitações.
Factores de riesgos ergonómicos que inciden en trastornos musculo esqueleticos de los trabajadores acuicolas de la camaronera Marycielo
Authors: Arteaga-Rubio Manuel Gabriel , Quinde-Alvear Ángel Giovanny 
Published: December 2024

El propósito de este estudio fue identificar los riesgos ergonómicos y las potenciales condiciones musculoesqueléticas en los empleados que trabajan en la camaronera Marycielo. Se llevó a cabo un estudio observacional y descriptivo aplicado en los 16 trabajadores operativos de la empresa. Se utilizaron los métodos REBA, NIOSH y OCRA para la evaluación ergonómica junto al cuestionario nórdico para detectar síntomas musculoesqueléticos. Los resultados del Cuestionario Nórdico indicaron que la mayoría de los trabajadores no informaron sentir molestias físicas; sin embargo un porcentaje significativo presentó síntomas en áreas como la muñeca/mano (13%), hombros (11%) y región dorsal o lumbar(11%). De acuerdo al método REBA el 61.54 % mostró un alto riesgo ergonómico “Altamente Alto", mientras que según OCRA se identificó que el 69.23 % enfrenta un riesgo “Sumamente Alto e Inaceptable", principalmente debido a movimientos repetitivos. El estudio realizado por NIOSH mostró que todos los empleados realizan tareas de levantamiento de cargas superando el límite recomendado del índice de levantamiento (LI). Asimismo, los análisis estadísticos a través de la prueba de Chi Cuadrado no revelaron una relacion significativa entre la presencia de lesiones musculoesqueléticas y los niveles de riesgo ergonómico. Concluyendo que, los trabajadores enfrentan importantes peligros ergonómicos que necesitan acciones inmediatas como cambiar las tareas laborales existentes y utilizar tecnología de apoyo adecuada junto al entrenamiento en ergonomía para contrarrestar estos riesgos potenciales y promover el bienestar de los trabajadores además de aumentar la eficiencia en el lugar de trabajo de la empresa en conjunto.
REFORMA DO ENSINO MÉDIO DE 2017: AS CONTRADIÇÕES DO DISCURSO DE MODERNIDADE E SEUS IMPACTOS
Authors: Honório Deane , Da Silva Erivaldo , De Melo Fernanda , De Oliveira Iane , Bento Jacyelle , Da Silva Lucas , De Jesus Vanessa , De Souza Whevenny 
Published: December 2024

The present work aims to unveil what is behind the discourse of modernity propagated with the new reform of High School, through law No. 13.415 of February 16, 2017, which modified the Law of Guidelines and Bases of National Education of 1996 and, consequently, the school curriculum. In view of this, in order to understand the dangers brought by the new law to the schooling of high school students, we resorted to the analysis of the French discourse, affiliated with Michel Pêcheux, in which it is possible to consider discourse as human praxis, as it is constituted in historical and social relations, materializing in language. Therefore, in order to understand its meanings, it is necessary to have a process of analysis that considers the relations between language, history and ideology. To achieve this intent, the conditions of discourse production that enabled the constitution of this discourse will be investigated, here the constitution of neoliberalism is considered as an important factor to understand this process. For analysis, the research corpus was constituted from a discursive sequence of the text of the law that discusses the contents, methodologies and forms of evaluation of High School so that at the end of this stage the students begin to demonstrate mastery of the technological and scientific precepts that guide modern production. From this analysis it was possible to understand that other reforms of High School have already been carried out, in similar contexts, and it is interesting to note that there is a return to other discourses. However, we now see a deeper, neo-fascist and authoritarian neoliberalism, which uses the term "modernity" to succumb more and more to the right to life of the working class. For this reason, students in the last stage of basic education are directed to a superficial education that has as its "focus" a false scientific and technological training based on modernity, to disqualify future workers and consolidate the ideology of non-employment.