bluuebunny/crossref_metadata_2025 huggingface dataset:
U-Pb ages of zircon from an intrusion located at the northern part of Pac Lang deposit, Ngan Son district, Bac Kan province and its relation to mineralization of gold- quartz - sulfide
Authors: Nguyen Dat Van , Quach Tin Duc , Pham Luong Duc , Pham Hieu Trung , Ta Tung Dinh ,   Viet Nam Institute of Geosciences and Mineral Resources, Vietnam  Vietnam Union of Geological Sciences, Vietnam  Faculty of Geology, VNUHCM - University of Science, Vietnam
Published: May 2022

The geological investigation indicated that the structure of Pac Lang gold mining has been constrained by a small intrusion about 1200 m in length and 150÷200 m in wide, which elongates east - west along the provincial highway of DT209. This block includes two intrusive phases, in which (1) the first phase consists of grabrodiabas and (2) the second phase is porphyry granitic rock. According to the geological map of Bang Khau - Yen Lac at a scale of 1:50.000, it has been considered Ban Sieu complex (µD3 bs1), containing gabbro grabrodiabas semplaced during the Late Devonian. A U-Pb LA-ICP-MS zircon age of 250÷270 Ma (mean = 253.5±2.3 Ma) was obtained for a sample of PL.2057 (porphyry granitic), and 250÷257 Ma (mean = 253.3±3.1 Ma) was obtained for a sample of PL.2070 (gabrodiabas). These results have pointed out that the timing emplacement of magma intrusion in this study is much younger than that in previous studies. It is close to the ages of intrusive rocks found in Song Hien interior rift and the ages of intrusive rocks found in the Song Hien interior rift, proposed by other geologists. Therefore, it can be classified into the late Permian - early Triassic (P3-T1) Cao Bang complex of ultramafic - mafic - felsic of Song Hien interior rift. Based on the hydrothermal transformation, especially hornfels metamorphic in the Khau Lieu area with distribution rules, the development of gold - quartz - sulfide ores in the Pac Lang mine may be the gold ores related to the hidden magma instrusion of the Cao Bang complex.
Application of the numerical method to analyze the effect of cross-sectional type in stabilizing the coal mine tunnel
Authors: Pham Nhan Thi , Qi Fuzhou ,   Faculty of Civil Engineering, Hanoi University of Mining and Geology, Vietnam

 School of Civil & Architecture Engineering, Zhong Yuan University of Technology, China
Published: May 2022

For the coal mine tunnel, each type of cross-section of the tunnel will cause different laws of mechanical change in the rock mass around the tunnel. This difference is expressed through quantities such as displacement, stress, the damage zones within rock mass, etc.. It is completely unreasonable to adopt an independent mechanical parameter to evaluate the selection of the most optimal shape for the tunnel. To simulate the tunnel excavation process with different types of cross-section shapes in the same geological conditions, the software FLAC3D was employed. The data extracted from numerical simulation including displacement, stress field, plastic deformation area, the thickness of plastic deformation zone at the top, side, and bottom of the tunnel are evaluated. The type of section shape with the highest score will be evaluated as the most optimal one. The present case study shows that the type of cross-sectional shape of the straight wall with curved arch and deviated trapezoid got the highest scores of 36 points and 30 points, respectively. Therefore, the type of cross-sectional shape of the straight wall with curved arch and deviated trapezoid should be used. This shape choice will be the most optimal, and beneficial to the stability of the tunnel both during excavation and production progress.
Lead Isotopic Characteristics and Metal Sources for the Jewelry in the Medieval Rural Settlements from the Suzdal Region (Kievan Rus’)
Authors: Chugaev Andrey V. , Merkel Stephen W. , Zaytseva Irina E.
Published: May 2022

The article considers the results of the study of lead isotope composition of 38 non-ferrous artifacts discovered at medieval rural sites of the Suzdal Region (Kievan Rus’). The copper-alloy, silver and pewter artifacts were compared with reference data from geographically and temporally diverse medieval artifacts and ore deposits and revealed differing source regions and supply networks within and between metal types. The identification in some cases was difficult due to the conformity of the lead isotopic composition of deposits of some regions. The copper-alloys, represented mostly by crosses made of high-tin bronze, show close isotopic parallels to contemporary copper alloys from Southern Scandinavia, Westphalia and Lower Saxony. Since the copper alloys contain significant quantities of lead, this lead may have entered the metal by alloying with lead-tin alloys, by smelting mixed copper-lead ore, or through haphazard alloying with lead. The lead isotope ratios for nearly all copper alloys are consistent with deposits in Cornwall and Devon and remobilized ore from the Rhenish Massif. For silver and lead-tin alloy objects, lead isotope analyses point to wide ranging sources. Most silver objects are consistent with mid-to-late 10th century silver stocks circulating in the Baltic area and 10th century Volga-Bulgar silver dirham imitations probably representing mixtures of 9th-10th century Islamic silver. The silver shows a heavy reliance on 10th century mixed stocks and there are little indications of Central and Western European silver, which was common in the 11th century Baltic region. The pewter and lead, however, indicate other sources. Lead isotope ratios are consistent with sources connected to Mediterranean and Baltic networks, some being consistent with sources in England, but it is possible that the lead found in some pewter objects could come from the Olkusz lead district in southern Poland.
Perm Institute of Railway Transport: the path is 140 years long
Authors: Timolyanova N. A.
Published: May 2022

The study of such an important issue as history occupies a dominant place in our lives. Awareness and selfdetermination are made up of those historical facts that form the basis of any social phenomenon. It is for this reason that it is important to study and present the history of the university, using museum sources and historical literature.

Perm Institute of Railway Transport — a branch of the Ural State University of Railway Transport has come a long way from college to institute, from a two-story building to a student complex, consisting of two buildings and dormitories.

The fate of the institute echoes the events taking place in the country: strikes in the early 20th century, revolutions, the Civil War, World War II, the post-war years, the “dashing” 90s, the golden zero.

The teaching staff is changing, the technical base is expanding, specialties and forms of education are being transformed. But one thing remains unchanged — the training of highly qualifi ed employees for the needs of the railway. Throughout this time, close cooperation with the employer was carried out.

The Perm Institute of Railway Transport has a rich history, this year marks the 140th anniversary of the institute. Analysis and study of the past, summing up, identifying achievements contribute to building a course for the future.
Overseas Hoisting and Handling Equipment Innovations
Authors: Tiverovsky V. I.
Published: May 2022

Digitalization and automation determine the main trends in the development of logistics at the present stage. The same trends set the way for the improvement of handling equipment, as the basis for the development of logistics and mainly internal logistics. An important place in the implementation is occupied by fl oor vehicles, especially transport systems with fl oor carts operating without drivers. The innovative development of these systems is considered. The relevance of automating the determination of the dimensions and mass of cargo is noted, data are given on the systems in which these functions are implemented. The use of robots, including collaborative ones, in lifts, cranes and other types of equipment is described. Examples of the use of new technical means for IT-technologies are shown.

Innovations in handling and storage equipment abroad are determined by the requirements of digitalization and automation. This also provides for the introduction of some IT-technologies where automation is ineff ective due to the small amount of work or for reasons of economic effi ciency.

Automatic cranes, various types of lifts, automatic sorting systems, automatic systems and means for measuring the mass and size of goods, and other equipment have been widely used.

All these innovations create the conditions for dynamic, digitized, intelligent warehouse logistics and modern internal transport in industrial plants and warehouses.

Foreign innovative experience should be used in our country in the implementation of promising projects and programs in the fi eld of transport and logistics.
Distance educational technologies in the organization of independent work of students
Authors: Zorkova E. M. , Kalashnikova T. N. , Shesternina V. V.
Published: May 2022

The organization of independent work of students in the process of studying professional modules in the specialty 23.02.01 “Organization of transportation and transport management (by type)” with the help of electronic training courses is considered. Educational institutions determine the forms and requirements for the organization and control of independent work of students in an educational organization.

These requirements are developed and approved in the form of regulations or guidelines for organizing independent work. Teachers of the Primorsky Institute of Railway Transport are actively using an automated distance education system using the LMS Moodle virtual environment. The platform provides a space for collaboration between teachers and students. In Moodle, various options are available for assessing student performance, the results of independent work, for example, learning new material, testing. Describes the use of course elements such as “Lecture”, “Assignment”, “Glossary”, “Seminar”, “Test”. The analysis of the features of independent work of students of Primorsky Institute of Railway Transport in the distance learning system, as well as methods of its control, was carried out.

A lot of work has been done at Primorsky Institute of Railway Transport to create electronic teaching aids widely used in the educational process and place them in the electronic educational environment of the institute. The main value of methodical electronic educational resources is the availability for students of all forms of education subscribed to this training course.
Methodology of formation of cognitive independence of students
Authors: Novikov S. A.
Published: May 2022

The task of Russian education today is the preparation of a highly qualifi ed specialist who is competent not only in the professional fi eld of activity, but also in related fi elds. He must also be an active, enterprising and independent person, ready for lifelong learning. This is important, since the success in the career of each person largely depends on his ability and desire for self-development and self-improvement.

The problems of the formation of the cognitive independence of the student at the present stage of the development of society are investigated, the necessity and relevance of cognitive independence for the student is substantiated. The defi nitions of the concepts of “cognitive independence”, “self-education” are presented. Motives, forms of formation of independence are described, possible results of the formation of cognitive independence are indicated.

The potential for self-education is considered as a leading and eff ective means of forming the cognitive readiness of a future specialist for professional activity. An attempt is made to name all the stages of the formation and development of the skill of the student’s cognitive independence.

The stages of formation of readiness for professional self-education, components of educational strategies of self-education are singled out. The most important component of social and emotional learning is self-regulation. Self-regulation is the ability to control attention, thoughts and emotions. The conclusion is made about the need to form this skill in modern realities.
Digitalization of the educational process of the transport university
Authors: Kutsenko S. M. , Kazakevich E. V. , Shablyuk O. P. , Korotin V. E.
Published: May 2022

Digital technologies are more present in our lives. Such concepts as blockchain, Big data, Internet of Things (IoT) 5G networks, artifi cial intelligence are already becoming commonplace. The educational process, which should be organized to solve key production problems, is no exception. The training of personnel for the transport industry is carried out taking into account the fact that in the near future every graduate of a transport educational institution should have digital competencies. In this regard, the features and nuances of teaching digital technologies are extremely important and relevant. The article discusses the methodology for teaching students of the popular IoT technology. The possibilities of the hardware and software complex “Industrial Internet of Things” (agro-industrial complex IoT), which has been used in the educational process of PGUPS since 2021, are considered. The questions are discussed how best to conduct IoT training, what practical skills students will acquire when working with elements of the IoT agro-industrial complex. There is no doubt that transformation in technical education should take place with the use of similar IoT agro-industrial complex. In the near future, it is precisely such educational laboratory stands that will allow organizing training in digital competencies at a high level, which is extremely necessary for the preparation of graduates adapted to modern production tasks.
Socio-cultural aspects of a Satere-Mawé circle game – Amazonase (praxiological analysis)
Authors: De Souza Miriam Martins Vieira , Soares Artemis de Araujo
Published: May 2022

This work aimed to analyze the socio-motor and cultural representations present in the circle game, called CACURI, typical of the Sateré-Mawé/AM People. Under the focus of motor Praxiology we can define Cacuri as a socio-motor activity characterized as CAI in the classification of P. Parlebas, that is, it is performed with Companion, in the presence of Adversary and without Instability in the physical surroundings. In view of the theories of corporeity we can perceive the forms of socio-cultural representations and from this look it is undeniable that children learn by playing, recreating their day life, without any conscious intention of a productive survival activity, only by simply copying adult life. Therefore we are faced with another point to be analyzed in the face of corporeity, because fishing with Cacuri is carried out by the men of the community and the game is typical of the girl’s imaginary world.
UNESCO, Ciencia abierta , acceso abierto y publicaciones científicas
Authors: Caballero Uribe Carlo V
Published: May 2022

La Unesco adoptó a finales de noviembre pasado el primer marco internacional sobre Ciencia Abierta. Este documento fue firmado por la totalidad de los 193 países presentes en la 40ta Conferencia General del organismo que busca hacer más transparentes y accesibles los hallazgos científicos.
Trombosis de la vena central de la retina como debut de arteritis de células gigantes y polimialgia reumática. Reporte de caso.
Authors: Sanchez-Gamez Jersson Camilo
Published: May 2022

La coexistencia entre Arteritis de células gigantes (ACG) y Polimialgia Reumática (PMR), así como el desarrollo de síntomas extraarticulares no son infrecuentes, predominantemente la afección vascular arterial a nivel ocular es una de las principales; sin embargo, el compromiso venoso ocular en ausencia de otros factores es una complicación rara y poco descrita. Traemos el caso de una paciente que cursa con una trombosis central de la retina (OVCR), atribuida al componente inflamatorio reumático, con un pronóstico evolutivo desfavorable.
VICTIMS OF SEXUAL VIOLENCE ADMITTED AT THE MEDICAL LEGAL INSTITUTE OF AFOGADOS DA INGAZEIRA, BRAZIL, IN 2018
Authors: Francisco da Silva Souza José Miguel , Feitosa Gonçalves Tiago , Inojosa Carneiro Campello Reginaldo , Conrado de Almeida Adriana
Published: May 2022

INTRODUCTION: Sexual violence is any action in which an individual in a power situation forces another to engage in sexual practice against their will. The Institute of Forensic Medicine (IML) located in Afogados da Ingazeira, Pernambuco, Brazil, was established to perform sexological medical examinations. The objective of this study was to analyse medical forensic reports from victims of sexual violence admitted at the IML in 2018. MATERIAL AND METHODS: This is a descriptive study, comprising all sexological expert reports from the GDL System of the Regional Unit of the Scientific Police of Afogados da Ingazeira between its foundation in July 2018 and Dec. 31st 2018. RESULTS: From the 17 medical records analyzed, it was established that the average age of the victims was 13 years, most of them female (94%). In two cases (11,76%), the aggressor was unknown, in the other cases, most were from the same family environment as the victm. Thirteen victims considered themselves brown and four claimed to be white. Nine cases occurred in the urban area and eight in the rural area. Approximately 12% of victims reported alcohol consumption before the abuse. As for the characterization of sexual abuse, 35% corresponded to the carnal conjunction. DISCUSSION: In this scenario of a small number of cases, there was a predominance of 88,2% of aggressions perpetrated by the victim’s relatives and acquaintances, which is higher than the rate found in another study carried out in the State of Santa Catarina where there is a predominance of 50,9% of cases of sexual aggression arising from family members and acquaintances. CONCLUSION: Victims of sexual violence are on average young women who declare themselves to be brown, and having a friend or family member as perpetrator.
ρ-STATISTICAL CONVERGENCE DEFINED BY A MODULUS FUNCTION OF ORDER (α,β)
Authors: ARAL Nazlım Deniz
Published: May 2022

The concept of strong w [ρ, f, q] −summability of order (α, β) for sequences of complex (or real) numbers is introduced in this work. We also give some inclusion relations between the sets of ρ-statistical convergence of order (α, β), strong wαβ [ρ, f, q] −summability and strong wαβ (ρ, q) −summability.
Ayurvedic Management of Premature Ejaculation In Reference To Śukṟagata Vata: A Case Report
Authors:   Final year MD Scholar, Manovigyan Avum Manasroga, Department of Kayachikitsa, Vaidyaratnam P.S Varier Ayurveda College, Kottakkal, Malappuram Dt., Kerala, P. U Sreeram
Published: May 2022

Premature ejaculation (PE) is the most common type of ejaculatory dysfunction which is difficult to manage. The global prevalence of PE is estimated as 20 – 40 % and in India it is reported as 8.76%. The inability to control ejaculation associated with unsatisfied experience of orgasm for the couples is a major factor causing psychological distress that leads to inter-personal conflicts. However, psychological interventions provide better results in PE, a combined approach of Psycho-Pharmacological intervention offer superior efficacy. A 39-year-old male presented with inability to delay ejaculation with a duration of sexual act less than 1 minute associated with resultant significant anxiety that hampered the sexual activity and reduced the sexual desire. On further interrogation, it was revealed that he had a significant stressful event in his life due to financial loss and also had a hurried sexual act which led to rapid ejaculation. However, he had many previous good experiences in his sexual act and also was having a supportive partner. The case was diagnosed as Premature ejaculation as per DSM V Criteria and as Śukṟagata Vata in Ayurveda purview. The management was planned in OP level, as a combination of a positive psychotherapy technique called Solution Focused Brief Therapy (SFBT) and an Ayurveda formulation Staṃbhanakara yoga for 3 months. Significant improvement was noted in Sexual dysfunction assessment questionnaire (Revised Singh. G et al. 2001) and Solution Focus Inventory recorded before and after the management along with increased Intra Ejaculatory Latency Time (IELT).
Governance Structure and Quality of Accounting Reports in Covid 19 Era
Authors:   Department of Accounting, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria, Joel Ihenyen, Confidence
Published: May 2022

This article investigated the impact of governance structure on the quality of accounting reports produced by firms operating in Nigeria during the pandemic. The study was carried out using the ex-post facto research design. The information was derived from the annual reports and accounts of firms listed on the Nigeria Exchange Group between 2011 and 2020. The correlation between corporate governance indicators of board structure (size-BRDSZ and independence-BRDID), audit quality (audit committee size (ADCMZ), the quality of external audit (EADTQ as measured by the presence of an auditor among the big-4), board experience (i.e. experience-BRDEX), and financial reporting quality is 93.47 percent, according to econometric analysis. The independent variables can explain 54.29 percent of the variance in the FRQDA. There is general relevance among the metrics assessing financial reporting quality, such as corporate discretionary accruals (FRQDA). The COVID-19 pandemic has a beneficial influence on board structure (BRDSZ), board experience (BRDEX), and external audit quality (EADTQ). Furthermore, as a consequence of the COVID-19 epidemic, independent directors on the board of company (independence-BRDID) and audit quality (audit committee size (ADCMZ) have a detrimental impact on financial reporting quality as evaluated by the firm's discretionary accruals (FRQDA). As a result, the research advised that a higher emphasis be placed on corporate governance indicators in order to achieve global standard financial reporting in the Nigerian growing market for investment opportunities.
ICT-Based Needs Assessment Analysis in Partner Community
Authors:   Northern Iloilo Polytechnic State College, Estancia Iloilo, Fernandez Sharra Mae B.
Published: May 2022

Determining the needs of the participants in a community extension program prioritizes the topics that they will be interested to attend. It is critical to identify interconnected needs and their underlying causes in order to design empowering and long-term programs and projects to assist people in improving their quality of life. Thus, using consultative meetings and focus group discussions, this qualitative study determined the community problems of Barangay Tanza, Estancia, Iloilo, on the ICT related program. Participants included 50 residents from the sectors of fisherfolks, farmers, women, youth, barangay officials, and 4Ps beneficiaries. This ensures that participants are interested in various topics presented in the program. The findings of the study were the basis for a proposed annual extension program plan for June 2021 to October 2025.
Prevalence and Angulation of Mandibular Third Molar Impaction in Zliten, Libya: A Retrospective Radiographic Study
Authors:   Assistant Professor, Department of Oral and Maxillofacial Surgery, Zliten Dental School Al- Asmarya Islamic University, Zliten, Libya, Alayan Ibrahim Abead
Published: May 2022

Objectives: This retrospective study investigates the prevalence and angulation of impacted mandibular third molars and the most affected sex in a sample of Libyan patients between the ages of (19 and 84) who live in Zliten, Libya. Study Design: Sixty-nine patients between the ages of (19 and 84) referred to the Assalam Dental Centre were included in this retrospective study. Of the 69 patients, 30 females and 39 males were assessed for the prevalence and position of an impacted mandibular third molar on panoramic radiographs. Results: Out of 124 mandibular third molars, seventy-six were found to be impacted on both right and left sides, from which mesioangular impaction was the most common angulation in females. In contrast, vertical impaction was the most common in males. In addition, the prevalence of impacted mandibular third molars were more in females. Conclusion: The prevalence of impacted mandibular third molars is higher in females than males, and mesioangular impaction is the most common in females, while vertical angulation is frequently common in males.
Representation of the Concepts “Man/Woman” In the Kazakh and English Proverbs
Authors:   L.N. Gumilyov Eurasian National University, Kazakhstan, Nur-Sultan, Abdimaulen Gulmira
Published: May 2022

It is very interesting to study proverbs and sayings describing the image of a man and a woman in-nonnative Kazakh and English languages. Proverbs and sayings that describe the image of a man and a woman which are used in everyday spoken language add value to the theme of the article. In addition, the relevance of the work lies in the examination of cross-comparisons of proverbs and sayings between non-native languages. The article aims at studying proverbs and phrases in Kazakh and English that describe the appearance, character, social characteristics, and position of men and women in society. Gender is one of the most important parameters of binary opposition and social existence. The main goal of the author is to use proverbs and sayings of different peoples to determine their common understanding and differences by comparing traditions, principles of life, religion, and language with each other. To achieve this goal, the following tasks are set: 1) division of men and women into categories according to their position and activities in society. Reveal the linguistic image and meaning of the proverbs and sayings belonging to the category. 2) Clarify whether the words in the proverbs are given in a direct or indirect sense and determine a clear pragmatic position of a native speaker. As a result, an analysis of the article`s material using a comparison method found that the evaluation of men was higher than that of women. Finally, materials of the article revealed the androcentric property of different unrelated languages. The author used books of proverbs, sayings and phraseological phrases in the Kazakh and English languages.
Investigation of Acquisition of Oromo Inflectional Morphology in Typically Developing Children
Authors:   Department of Linguistics, Addis Ababa University, Ethiopia, Tafese Alemayehu
Published: May 2022

This research is aimed at investigating patterns of acquisition of Oromo inflectional morphology in typically developing children. The study specifically tries to look into he acquisition of some verbal inflections (tense and aspect) and nominal inflections (number and case). Although linguistic descriptions on various aspects of the Oromo language have extensively been done, there were no research available on the child language acquisition in Oromo in general and inflectional morphology acquisition in particular. The study employed a descriptive cross-sectional research design. Data were collected from thirty children age range 3;0-7;11 years. The study employed primarily elicited production through picture naming method. The speech samples were transcribed first Oromo script and then phonetically transcribed using the IPA symbols. The results showed that some morphological processes attested in children’s productions. In this process, the children employed substitution, and overextension strategy in naming the pictures. In addition, majority of the children omitted noun inflectional morphemes, even at the age 6 through 7. Furthermore, the omission of some inflectional morphemes on the locative case and progressive aspect morpheme were observed, but the lexical morphemes are retained for the latter two items. As to the two past and future tenses, almost all participants performed well. This implies the children acquired these tenses even before the age of 3;3. Evaluating the children’s performance based on sex at the same age, the study revealed an insignificant difference among both sexes.
Acute Confusion and Double Vision Post-Bariatric Surgery
Authors:   Prince Mohammed Bin AbdulAziz Hospital Affair National Guard, Saudi Arabia, Mnofala Ahmed Mohamed , Tashkandi Abdulhadi ,   Prince Mohammed Bin AbdulAziz Hospital Affair National Guard, Saudi Arabia
Published: May 2022

Background: Bariatric surgeries are one of the most commonly performed procedures for the treatment of morbidly obese people. Post-operative complications are not uncommon. These potential health risks can be both, short-term or long-term and it falls into two categories: Surgery-related or Nutritional deficiencies- related.
Correlation between SPT and CPT for Sandy Soils in Port Sudan City using the Linear Regression Model
Authors: Wadi Dafalla , Wu Wenbing , Fuad Abuzar , Ahmed Husam Eldin , Abdalla Rifaat
Published: May 2022

In geotechnical engineering, in-situ tests, like standard penetration test (SPT) and cone penetration test (CPT), are essential to evaluate the underground conditions. SPT is a frequently used geotechnical approach, while CPT is considered one of the best exploration apparatuses. However, there is a demand for a correlation of SPT-CPT that can be used in the geotechnical design. This research aimed to find the relationships between the standard penetration test’s blow count (N) and cone penetration test’s tip resistance (qc) for different groups of sandy soils in Port Sudan city, Sudan. The data used in this study was attained from numerous projects conducted in the city to identify the underground conditions. The values of the SPT and CPT tests were compared and tried to generate specific statistical data. The correlations were established between qc and N for various soils. Uphill linear relationships wear found between qc and N for different sandy soils. These results were interpreted based on their correlation coefficients. The study proposed formulas to predict qc from N for three soil groups, with a high correlation coefficient. Besides, qc/N ratios were calculated for different soil groups; the current research results agree with those in the published literature with less high values.
Design and Development of Drill Jig Using Additive Manufacturing Technology
Authors: Ronak D. Modi  , Mahendra Y. Patil
Published: May 2022

This paper concern with design, analysis and development of drill jig. The fundamental objectives of manufacturing - improve quality, reduce costs, speed up throughout and increase production capacity are the primary reasons that jigs and fixtures are so abundant. the mass production is help to increase the productivity and increase the accuracy. Thereby, mass production can be achieved by the use of jigs. The conventional processes for jig could be lengthy, more tool wear hence drill jig life is less, Skill labor is required, the heavy weight of the final jig. These caused the final production cost of jig is high. To overcome these issues, additive manufacturing is one of the process between the manufacturing rate and high precision product. The goal of this project is to determine the efficiency of 3D printed jigs. The design of these jigs and how they function compared to conventional jig systems is analyzed. While machining custom jigs can be costly, 3D printing these jigs provides precision as well as reduces costs and setup time since they are designed for their specific application.
Microstructural Study and Mechanical Properties of Al2O3 Reinforced Al 1100 (Mg) Cast Composites
Authors: Vinuth Kumar K. L.
Published: May 2022

Aluminum MMCs are considered as conventional materials in the fields of aerospace, automotive and marine applications due to their improved properties like high strength to weight ratio, good wear resistance etc. Al2O3 can be considered as ideal reinforcements, because of their high strength, high aspect ratio and thermo-mechanical properties. The objective of this work is to reinforce Al2O3 particles with Al 1100 (Mg) alloy by melt stirring method. 0, 3, 6, 9 and 12 wt% of Al2O3 particles are added to Al 1100 (Mg) alloy to make aluminum based composites. Microstructural study using Scanning Electron Microscopy and Mechanical properties like tensile strength and hardness will be investigated for cast alloy composites. Variations in microstructures and mechanical properties in different wt% of Al2O3 particles have been compared with each other.
Evaluation of DNA methylation of MAP9 gene in breast cancer as epigenetic biomarker
Authors: Rasheed Marrib N.
Published: May 2022

Introduction and Aim: The DNA methylation is involved in the regulation of gene activity and abnormal DNA methylation is associated with various diseases, including cancer. MAP9 (Microtubule-Associated Protein 9) gene methylation was investigated as a potential epigenetic biomarker for cancer in this work. The results were published in Cancer Research.
 
Materials and Methods: The present study was on 40 breast cancer samples and 20 healthy samples to identify diagnosis biomarkers for breast cancer. DNA was extracted from the whole blood of breast cancer patients and healthy samples and were converted to bisulfite by using EpiTect Fast DNA Bisulfite Kit –Part 1 from Qiagen company. Then used Qia gene methylation kit to identify methylated site an epigenetic marker (MAP9) using HRM software in RT-PCR.
 
Results:  The findings of the present investigation revealed that the methylation of the MAP9 gene in breast cancer patients were 28 (70%) compared to healthy patients 2 (10%) at a significant difference (P<0.01).
 
Conclusion:  The MAP9 gene is hypermethylated in breast cancer patients, and it has the potential to be exploited as a molecular biomarker for the detection of breast cancer.
A study on protective effect of Piper longum and Hybanthus enneaspermus on glucose induced diabetic cataract in cultured goat lens
Authors: Katta Ashok , M Murugan
Published: May 2022

Introduction and Aim:  The maintenance of protein redox status, thought to be largely responsible for cell survival and function, may be the outcome of oxidative events, antioxidant protection and degradation of damaged proteins. Diabetes has been one of the substantial predisposing factors of cataract. Cataractogenesis in diabetes is mainly due to generation of free radicals causing oxidation of long-lived proteins. phytonutrient isolated from medicinal herbs are now proven to have great antioxidant & other therapeutic properties.  The present study was done to understand the pathophysiology of diabetic cataract to formulate and develop novel and effective anticataract agents and to explore role of Piper longum and Hybanthus enneaspermus in the prevention of oxidative damage of lens proteins in glucose induced cataract.
 
Material and Methods: A total of 120 goat lenses were distributed into four groups of 30 each viz.  Normal control, experimental diabetic cataract, experimental diabetic cataract + extract of Piper longum (0.25%), experimental diabetic cataract extract of H. enneaspermus (0.25%). Various study parameters measured in lens homogenates comprised malondialdehyde (MDA), total soluble lens proteins, and protein carbonyl level as a measure of lens protein oxidation.
 
Results: Both extract of Piper longum and H. enneaspermus showed significantly declined concentrations of protein carbonyl level, preserved total soluble proteins and decreased malondialdehyde (MDA) (p<0.001).                        P. longum aqueous seed extract performed better over H. enneaspermus.
 
Conclusion: It is concluded that aqueous extract of Piper longum and H. enneaspermus contains potent antioxidant compounds which shown protective role against cataractogenesis in the present.
Does dental x-ray cause oral keratosis?
Authors: Yanuaryska Ryna Dwi , Gracea Rellyca Sola
Published: May 2022

Introduction and Aim: Ionizing radiation in dental imaging technology may cause cytotoxicity by means of changing the buccal mucosa cells and gingiva maturation pattern. Alteration of maturation pattern was often accompanied by increasing anucleated cells number that indicates keratosis. This study aimed to evaluate whether superficial keratosis also occurred after exposure to dental X-ray radiation.
 
Methods: The study samples consisted of 40 participants and were divided into two groups: exposed (patients who came in for taking analog/digital panoramic radiography or cone beam CT) and controlled (no radiography examinations). Each group contained ten individuals. Exfoliative cytology smears have been taken from the gingival and buccal mucosa before (or on day 0 for the control group) and 10 days post-exposure. The Papanicolaou approach was used to stain the cells. The anucleated cells in each glass slide have been then counted.
 
Results: No significant differences (p > 0.05) were observed in anucleated cell numbers between days 0 and 10 in both the controlled and exposed groups. The anucleated cell numbers also confirmed no significant difference between the gingiva and buccal mucosa.
 
Conclusion: Analog/digital panoramic radiography and CBCT exposure do not cause increases in anucleated cell numbers, so keratosis may not occur in patients exposed to dental X-ray radiation.
La protección jurídica de los niños, niñas y adolescentes con trastornos de conducta en perspectiva histórica: Cuba (1959-1982)
Authors: Alba Moreno María Del Carmen
Published: May 2022

El tratamiento de los menores con trastornos de conducta ha sido regulado de forma desigual en las épocas diferentes y contextos históricos, y ha estado relacionado con la evolución doctrinal del Derecho de Menores. Se relaciona con los conceptos de delincuencia, inadaptación, delito y trastornos de conducta, que, como fenómenos complejos, se puede en correspondencia con la estructura social y el tipo histórico de sociabilidad. Con el empleo de métodos analíticos-sintéticos y lógico-históricos el trabajo propuesto en Cuba entre 1959 y 1982 tuvo lugar un perfeccionamiento de la base legal y legal en función de la prevención y/o rehabilitación de los niños y adolescentes transgresores de la ley, en correspondencia con las transformaciones socioeconómicas, políticas e institucionales emprendidas en el país. Obstante, se ha pronunciado sobre la promulgación de una ley relativa a estos menores, a la vez que se ha infrinsado en la concepción de la Doctrina de la Situación Irregular, hasta la aplicación del Decreto Ley 64 de 1982. El trabajo realiza un acercamiento histórico a este asunto desde una perspectiva multidisciplinar, contribuyendo al ordenamiento sistemático de la legislación referida al derecho de menores en el periodo enmarcado.
O delegado de polícia como testemunha: uma análise à luz do conceito de prova
Authors: Maciel Fabianne Manhães , Vieira Lima Paulo Natanael
Published: May 2022

O presente artigo tem como escopo refletir acerca da possibilidade de a Autoridade Policial figurar como testemunha no processo penal, utilizando como base a Teoria da Prova. Além disso, visa-se entender o papel que o sistema processual adotado pelo Brasil impacta na produção probatória. Para a realização deste trabalho, foi realizada pesquisa bibliográfica em livros, dissertações, revistas acadêmicas e sítios da internet, tanto nacionais quanto internacionais. Além disso, foram consultadas as legislações pátria e estrangeira.
La naturaleza como sujeto de derechos: algunos puntos de la discusión
Authors: Viteri Nuñez Diego Paul , Saeteros Hernandez Angelica Maria
Published: May 2022

Este trabajo es un breve estudio sobre el impacto de la consideración de la naturaleza como sujeto de derecho en Constitución ecuatoriana de 2008, donde además se le atribuyeron derechos específicos en calidad de sujeto. Se toma como punto de partida las relaciones entre ciencia, tecnología y sociedad a partir del desarrollo de dos aspectos básicos: derechos de la naturaleza en perspectiva de la ciencia y la tecnología e impacto de los derechos de la naturaleza en las ciencias jurídicas, con el objetivo de poner de manifiesto las relaciones asimétricas entre los resultados científicos sobre el ambiente y la naturaleza, que demuestran los efectos negativos y las consecuencias catastróficas que tiene para el planeta la explotación de los recursos naturales de manera irracional e insostenible, y las leyes y políticas públicas ecuatorianas necesarias para hacer efectivos los derechos de la naturaleza.
Del derecho a la ciudad: su objeto y contenido esencial
Authors: Aguilera Rodríguez Ana Rosa
Published: May 2022

Uno de los paradigmas urbanos más significativos actualmente, es el derecho a la ciudad, respecto al cual, la determinación de sus elementos configuradores, resulta de gran relevancia para las Ciencias Jurídicas. Bajo ese presupuesto se realiza el presente artículo científico, cuyo objetivo principal se centra en sistematizar tendencias doctrinales relativas a dos de los referidos elementos configuradores, específicamente, su objeto y contenido esencial. Para ello, se abordan aspectos generales sobre la concepción de este derecho y se particulariza en los elementos aludidos, sin dejar de reconocer la existencia de otros. La metodología empleada se sustenta en la combinación de la revisión bibliográfica como técnica investigativa, con algunos de los métodos de uso más frecuente tanto en investigaciones científico- teóricas en general como en las investigaciones jurídicas. En correspondencia con el objetivo planteado, los resultados tributan a él, determinándose como tales, la sistematización de las principales tendencias doctrinales relativas al objeto y contenido esencial del derecho a la ciudad, como parte de sus elementos configuradores. Los aspectos valorados permiten el planteamiento de conclusiones que coadyuvan a la fundamentación de los restantes elementos, en pos de perfeccionar el dimensionamiento jurídico de este derecho.
O compartilhamento de funções soberanas, à luz da experiência da união europeia, no prisma do ordenamento constitucional brasileiro
Authors: Badr Eid , Ferreira Magdalena Araujo Pereira
Published: May 2022

O presente artigo analisa o compartilhamento de funções soberanas utilizando os parâmetros da União Europeia, decorrentes da crise provocada pelas mudanças no cenário internacional e nas forma de poder no século XX, mediante o estudo da soberania, sua evolução histórica e conceituação e da abordagem do direito comunitário, reconhecido como ramo do direito, e da acepção da supranacionalidade, instituto cuja aplicação é autorizada nas cartas constitucionais dos países integrantes da União Europeia, assim como as fases da integração regional econômica e política, para vislumbrar, mediante o estudo dos dispositivos constitucionais brasileiros, o cabimento (ou não) do instituto da supranacionalidade no prisma do ordenamento jurídico nacional. A metodologia aplicada neste artigo foi a dedutiva, por meio de pesquisa de natureza bibliográfica e integrativa, com o auxílio da internet. Foram selecionados artigos dentro do recorte temporal de 2001 a 2021, os quais foram analisados na revisão de literatura ao longo do trabalho exposto.
Appropriations et usages du temps de déplacement : comment habiter la mobilité ?
Authors: GONZÁLEZ Juliana
Published: May 2022

Le chapitre présente un état des connaissances sur la dimension qualitative du temps de déplacement. Dans cet esprit, le chapitre aborde successivement l’intérêt renouvelé des chercheurs pour la question de l’expérience du temps de déplacement, les conséquences d’un éventuel usage hédoniste du temps de déplacement dans un contexte d’urgence climatique, les méthodes utilisées dans la mesure des usages du temps de déplacement, les travaux majeurs en matière d’usage du temps de déplacement, et enfin, les débats et perspectives de recherche dans le domaine.
Le futur
Authors: AL AGHA Khaldoun , LOYGUE Pauline , PUJOLLE Guy
Published: May 2022

Ce chapitre introduit les visions du futur à plus ou moins long terme qui concernent le développement de l’Internet des Edges. Cette architecture pourrait constituer la base des spécifications de la 6G. L’internet participatif aura un rôle important à jouer dans cette architecture. Enfin, ce chapitre décrit les développements du monde des réseaux attendus dans les prochaines années.
Les réseaux ad hoc et mesh
Authors: AL AGHA Khaldoun , LOYGUE Pauline , PUJOLLE Guy
Published: May 2022

Ce chapitre s’intéresse à la génération des réseaux ad hoc et mesh, c’est-à-dire des réseaux de points d’accès interconnectés entre eux. Les points d’accès sont dans l’équipement terminal de l’utilisateur dans le cas ad hoc et chez un opérateur d’infrastructure dans le cas mesh. Les services sont totalement distribués pour tenir compte de la mobilité des nœuds qui peuvent se regrouper en clusters indépendants les uns des autres.
Signature of gravity wave propagations from the Troposphere to Ionosphere
Authors: Takahashi Hisao , Figueiredo Cosme A. O. B. , Essien Patrick , Wrasse Cristiano M. , Barros Diego , Nyassor Prosper K. , Paulino Igo , Egito Fabio , Rosa Geangelo M. , Sampaio Antonio H. R.
Published: May 2022

Abstract. We observed a gravity wave (GW) signature in the OH emission layer in the upper mesosphere, and 4 hours later, a medium-scale traveling ionospheric disturbance (MSTID) in the OI 630 nm emission layer. Spectral analysis of the two waves did show that both have the same wave characteristics: wavelength, period, phase speed and propagation direction, respectively, 200 km, 60 min, 50 m/s, propagating southeastward. During the MSTID occurrence, concentric wavefronts were also observed in the ionosphere by detrended total electron content (dTEC) maps. From the gravity wave ray-tracing simulation for the mesospheric gravity wave, we found that the wave came from a tropospheric deep convection spot and propagated up to the 140 km altitude. Regarding the same wave characteristics between mesospheric GW and MSTID, two possible cases are investigated: a direct influence of the GW oscillation in the OI 630 nm emission height and the generation of a secondary wave during the GW breaking process. The concentric wave structure suggests the generation of a secondary wave after the primary wave was dissipated in the lower thermosphere. This is the first time to report an observational event of gravity wave propagation from the troposphere, mesosphere to thermosphere-ionosphere in the south American region.