bluuebunny/crossref_metadata_2025 huggingface dataset:
Bioatividade de frações de sementes e pericarpo de Annona squamosa (Annonaceae) em Aspergillus nidulans
Authors: Guidoti Daniela Granella Gomes , Guidoti David Teixeira , Romero Adriano Lopes , Sartori Cardoso da Rocha Carmem Lúcia de Mello
Published: December 2021

As plantas são amplamente utilizadas na medicina popular e apresentam os chamados constituintes bioativos, produzidos sob a forma de metabólitos secundários, capazes de desencadear efeitos farmacológico ou toxicológico no homem e nos animais. Annona squamosa, conhecida popularmente como fruta-do-conde, é empregada pela população na cura de doenças; possui amplo espectro nutricional e representa uma excelente fonte de diversas classes de constituintes bioativos, como alcaloides, terpenos, taninos, compostos fenólicos e acetogeninas. Apesar das atividades biológicas já descritas para essa planta, é necessária a investigação de extratos e/ou isolados a fim de verificar a genotoxicidade de extratos de frações obtidas a partir de sementes e pericarpo de A. squamosa na germinação de conídios de Aspergillus nidulans, utilizando como parâmetro a estimativa de mortos e malformados. Os resultados indicaram que a fração acetato de etila do pericarpo apresentou, em menores concentrações (2,5 e 25 μg.mL-1) efeitos pró-reparo, e antiapoptótico na maior concentração (250 μg.mL-1). A fração metanólica do extrato do pericarpo demonstrou efeito apoptótico, também em menores concentrações e efeito genotóxico na maior concentração. Quanto ao extrato das sementes, a fração acetato de etila também indicou ativação de apoptose em todas as concentrações, enquanto a fração metanólica apresentou efeito pró-reparo. A diversidade de bioatividades de frações dessa planta reflete a presença de inúmeras classes de metabólitos secundários que poderão atuar beneficamente na saúde humana. Portanto, o presente trabalho contribui na escolha de frações para futuro isolamento e identificação química de metabólitos com potencial medicinal.
Nghiên cứu tích hợp công nghệ hybrid ứng dụng năng lượng mặt trời cho phương tiện giao thông thủy cỡ nhỏ
Authors: Nguyen Van Tong Em  , Nguyen Duy Anh  , Le Tat Hien  , Nguyen Van Trang
Published: December 2021

Bài báo này trình bày nghiên cứu tích hợp công nghệ hybrid với năng lượng mặt trời vào phương tiện giao thông thủy nội địa cỡ nhỏ. Trong nghiên cứu này, dữ liệu khảo sát kết hợp với ý kiến chuyên gia được tổng hợp và phân tích nhằm đưa ra phương án thiết kế hình dáng và công nghệ hybrid ứng dụng năng lượng mặt trời phù hợp với đặc thù phương tiện giao thông thủy cỡ nhỏ. Các ràng buộc mớn nước, tĩnh không, tuyến luồng kênh rạch, bề rộng kênh rạch đều đảm bảo tính năng kỹ thuật theo nhiệm vụ thư thiết kế. Giải pháp thiết kế hệ thống hybrid ứng dụng năng lượng mặt trời gồm phần cứng và phần mềm phục vụ tích trữ, điều khiển và vận hành cũng đã được so sánh và đánh giá. Kết quả cho thấy tính khả thi của nghiên cứu tích hợp công nghệ hybrid ứng dụng năng lượng mặt trời vào các phương tiện giao thông cỡ nhỏ hoạt động ở vùng hồ, kênh rạch tại khu vực TP. HCM và Đồng Bằng Sông Cửu Long.
HUBUNGAN KENAKALAN REMAJA DENGAN FUNGSI SOSIAL KELURGA DI DESA MEKAR JAYA
Authors: Prayer At
Published: December 2021

Penelitian ini bertujuan untuk: (1) Untuk mendeskripsikan bentuk-bentuk kenakalan dilakukan remaja di Desa Mekar Jaya. (2) Untuk mendeskripsikan hubungan kenakalan remaja dengan fungsi sosial keluarga di Desa Mekar Jaya.

Jenis penelitian dalam skripsi ini adalah penelitian lapangan (field research), karena pengambilan sumber datanya di lapangan–dalam hal ini data kasus-kasus kenakalan remaja yang terjadi di Desa Mekar Jaya untuk kemudian dideskripsikan dan dianalisis sehingga dapat menjawab persoalan yang telah dirumuskan dalam pokok masalah.

Hasil penelitian ini dapat disimpulkan : Bahwa bentuk-bentuk kenakalan remaja Mekar Jaya sebagaimana yang telah disebutkan dalam konsep teori, yaitu terdapat tiga bentuk kenakalan: a) Kenakalan biasa, seperti berbohong, begadang, pergi keluar rumah tanpa pamit, keluyuran, membolos sekolah, berkelahi dengan teman dan sebagainya; b) kenakalan yang menjurus pada pelanggaran dan kejahatan, seperti mengendarai kendaraan bermotor tanpa SIM, kebut-kebutan/ mengebut, minum-minuman keras, mencuri, mencopet, berjudi dan menodong; dan c) kenakalan khusus, seperti menyalahgunakan narkotika, kumpul kebo, hubungan sex di luar nikah, menggugurkan kandungan, memperkosa, membunuh, melihat, membaca dan menonton gambar-gambar porno dan sebagainya. Berdasarkan hasil wawancara dan analisis yang telah dilakukan dapat diketahui bahwa ada hubungan negatif antara keberfungsian sosial keluargannya dengan kenakalan remaja di Mekar Jaya Kecamatan Parenggean. Identitas remaja, baik sebagai pelajar ataupun pekerja sama-sama mempunyai kesempatan untuk melakukan kenakalan, baik itu kenakalan biasa, kenakalan khusus maupun kenakalan yang menjurus pada pelanggaran dan kejahatan. Remaja yang memiliki waktu luang banyak seperti mereka yang tidak bekerja atau menganggur dan masih pelajar kemungkinannya lebih besar untuk melakukan kenakalan atau perilaku menyimpang. Demikian juga dengan keberfungsian sosial keluarga, bahwa keluarga yang nota bene-nya keluarga yang utuh pun tidak menjamin anak untuk tidak melakukan kenakalan, terlebih lagi keluarga yang tingkat keberfungsian sosialnya rendah, maka kemungkinan besar anaknya akan melakukan kenakalan pada tingkat yang lebih berat.
Op naar een nieuw begin
Authors: Brons Claartje
Published: December 2021

Editorial

This editorial offers an introduction to the current issue.
Consensuele sexting tussen minderjarigen: een bespreking van de exceptie
Authors: Aksay R.F. (Ruben) , Kouwenberg M.W. (Maartje)
Published: December 2021

Consensuele sexting tussen minderjarigen: een bespreking van de exceptie

In deze bijdrage bespreken de auteurs de voorgestelde uitsluitingsgrond in geval van sexting onder jongeren. Zij bespreken de relatie tussen sexting en kinderporno alsmede het beschermd belang. Hoewel de uitzonderingsgrond als positief wordt beschouwd, plaatsen de auteurs enkele kritische kanttekeningen bij de uitsluitingsgrond. Zij laten zich uit over hoe de bestanddelen ‘als leeftijdsgenoot’ en ‘gelijkwaardige situatie’ moeten worden ingevuld. Verder signaleren zij een discrepantie tussen het delict kinderporno en de exceptie voor wat betreft de vaststelling van de leeftijd. Ten slotte bespreken de auteurs of de gelijkwaardige situatie na uitwisseling van de weergaven nog moet bestaan, en hoe moet worden omgegaan met een eventueel verwijderverzoek van de afgebeelde persoon.
10-year-old girl with multiple eyelid neuroproliferative tumors
Authors: Torroella Kristin , Bregman, MD Jana , Almira-Suarez, MD, FASCP Maria Isabel , Miller, MD Marijean
Published: December 2021

A 10-year-old girl with a known diagnosis of MEN2B and a history of medullary thyroid cancer (MTC) presented at Children’s National Hospital ophthalmology clinic with recurrent eyelid lesions. She had a history of hypothyroidism, mild hypocalcemia, and café-au-lait spots—all consistent with her MEN2B diagnosis. She was already followed closely by her pediatrician as well as an endocrinologist. There was no prior family history of MEN2B. The patient had undergone repeat shave biopsies of the eyelid lesions at an outside facility on two separate occasions and was experiencing regrowth after just one year. She noted that the lesions had continued to increase in size and was bothered by their appearance as well as by associated ocular surface irritation.
Adding Dexmedetomidine to Bupivacaine in Ultrasound-guided Thoracic Paravertebral Block for Pain Management after Upper Abdominal Surgery: A Double-blind Randomized Controlled Trial
Authors: Alimian Mahzad , Imani Farnad , Rahimzadeh Poupak , Faiz Seyed Hamid Reza , Bahari-Sejahrood Leila , C. Hertling Arthur
Published: December 2021

Background: Paravertebral blocks are one of the possible postoperative pain management modalities after laparotomy. Adjuvants to local anesthetics, including alpha agonists, have been shown to lead to better pain relief and increased duration of analgesia. Objectives: The aim of this study is to examine the effect of adding dexmedetomidine to bupivacaine for ultrasound-guided paravertebral blocks in laparotomy. Methods: In this double-blind, randomized controlled trial (RCT), we enrolled 42 patients scheduled for T6 to T8 thoracic paravertebral block (TPVB) for analgesia after laparotomy. The patients were randomly assigned into two groups of BD (bupivacaine 2.5 mg/mL 20 mL plus dexmedetomidine 100 µg) and B (bupivacaine 20 mL alone). Following surgery, intravenous fentanyl patient-controlled analgesia was initiated. The numerical rating scale (NRS) for pain, sedation score, total analgesic consumption, time to first analgesic requirement, side effects (such as nausea and vomiting), respiratory depression, and patients’ satisfaction during the first 48 hours of evaluation were compared in the two groups. Results: Pain scores and mean total analgesic consumption at the first 48 hours in the BD group were significantly lower than Group B (P = 0.03 and P < 0.001, respectively). The time of first analgesic request was significantly longer in BD group (P < 0.001). Sedation scores and side effects did not differ significantly between the two groups. Conclusions: Adding dexmedetomidine to bupivacaine for TPVB after laparotomy yielded better postoperative pain management without significant complications.
Molecular Analysis of Pathogenic Genes (lasB and exoA) in Pseudomonas aeruginosa Strains Isolated from Animal and Human Samples and Determination of Their Resistance Pattern
Authors: Ghazaei Ciamak
Published: December 2021

: Pseudomonas aeruginosa has a wide range of virulence factors. These factors have the potential to increase bacterial pathogenicity and serious infection. The purpose of this study was to evaluate the virulence profiles and antibiotic susceptibility of isolates of P. aeruginosa originated from animal and human samples. The samples were cultured on selective media before being extracted for DNA and subjected to a PCR technique to detect virulence genes. There was a significant difference in the isolation of P. areuginosa isolated from human and animal sources. Where, in humans, the percentage of P. areuginosa was 52 (68.42%) while in animals the percentage of P.aeruginosa was 24 (31.57%). In humans, the percentage of P. aeruginosa in blood was 26.92% (14 isolates), in urine it was 25% (13 isolates), in wound it was 40.38%21 isolates), and in sputum it was 7.69% (4 isolates). We used a PCR technique that produced highly specific and accurate results for detecting virulence factor genes in P. aeruginosa isolates that cause disease in humans and animals. The percentage of exoA genes was (83.33%) and (81.66%) in the animal and human, and that of lasB was (58.33%) and (92.30%) in animal and human samples respectively. Furthermore, both the exoA and lasB genes are found in 26.31% of animal strains and 17.10% of human strains. The disc diffusion method was used to determine antimicrobial susceptibility. In both animal and human isolates, P. aeruginosa showed the highest resistance to amikacin and the lowest resistance to ciprofloxacin. These findings could aid in the understanding of pathogenicity processes, treatment direction, and the development of strategies to control the spread of epidemic P. aeruginosa strains.
Comparison of Topical Herbal Cream and 1% Clindamycin Gel for Treatment of Mild-to-moderate Acne: A Randomized Clinical Trial
Authors: Iraji Fariba , Aghaei Ali , Motamedi Rezvan , Siahpoosh Amir , Karami Masoud Ali
Published: December 2021

Background: Acne is the most common chronic skin disease affecting young adults and adolescents worldwide. A characteristic of this disease is the chronic inflammation of sebaceous glands leading to comedones, papules, pustules, nodules, and cysts. Topical and systemic uses of medicines are common approaches to treat acne. However, these medicines are associated with some adverse effects and increased microbial resistance. Objectives: We aimed to prepare and apply an herbal formulation containing several herbs with different effects on mechanisms associated with acne formation. Methods: In this study, 66 patients with mild-to-moderate acne randomly received a packet containing herbal medicine or clindamycin gel. The treatment period was two months, and the total acne lesions and acne severity index were measured every four weeks. After eight weeks of treatment and follow-up, the physician examined clinical outcomes and possible complications. Results: Decreases in total acne lesions and acne severity index were significantly different in both treatment groups (P < 0.05 in both groups). Although the herbal cream provided better improvement than clindamycin, there was no significant difference between the two groups (P > 0.05). Conclusions: The use of the herbal cream could be recommended for treating acne lesions due to few complications, greater patient satisfaction, and avoiding microbial resistance to chemical antimicrobials.
Thyroid hormone levels in Tortoises (Testudo spp.) depending on Season and Sex
Authors: Leineweber Christoph , Öfner Sabine , Mathes Karina , Piepho Hans-Peter , Marschang Rachel E. , Stöhr Anke C.
Published: December 2021

Thyroid hormones and the factors influencing them are rarely studied in tortoises. This study therefore aimed to calculate reference intervals (RI) for specific species, sexes, and seasons for thyroid hormones and iodine levels in blood of four adult Mediterranean tortoise species and to evaluate possible correlations between thyroid hormones, serum iodine, plasma protein and increased liver and kidney values. Thyroid hormones (total tetraiodothyronine [tT4], free tetraiodothyronine [fT4], total triiodothyronine [tT3], and free triiodothyronine [fT3]) were measured in plasma from adult, healthy Hermann´s (Testudo hermanni, n = 255), spur-thighed (Testudo graeca, n = 89), marginated (Testudo marginata, n = 72), and Russian tortoises (Testudo horsfieldii, n = 30). Species, sex and season specific variations were determined by Bayesian information criterion (BIC) and correlations between plasma thyroid hormones, protein, iodine and increased liver/kidney values were evaluated by Spearman’s rank correlation test. Total T4 did not reveal any species, sex, or seasonal differences (RI 0.102 to 0.455 µg/dL), while seasonal differences were found for fT4 (RI spring 0.624 to 9.012; summer 0.379 to 5.476; fall 0.376 to 5.426 pmol/L). The tT3 levels differed significantly depending on species, season, and the interaction of species x season. Seasonal differences were also found for fT3 and iodine. Several significant (p < 0.05) correlations were detected between the tested analytes, especially positive correlations between tT4 and fT4. These results provide a tool for the evaluation of thyroid hormone levels in Mediterranean tortoises and indicate the influence of season on the thyroid in these animals.
The Palestinian Right of Return
Authors: Halwani Raja ,   Philosophy Documentation Center
Published: December 2021

The paper argues that individual Palestinians have a right of return to historic Palestine in virtue of being members of the Palestinian people that continues to have occupancy rights in historic Palestine. More specifically, the paper argues that the Palestinians were, when Israel was founded, a people with occupancy rights to their lands, that they continue to be a people to this day, and that their occupancy right has not been alienated, forfeited, or prescripted. The paper then argues that individual Palestinians have the right of occupancy in virtue of being members of the Palestinian people. Because the right has been blocked by Israel since 1948, the right of return is the right of individual Palestinians to be allowed to return to their homeland and exercise their occupancy rights there.
Nature in Common. Beyond the Nagoya Protocol
Authors: Aubertin Catherine , Nivart Anne
Published: December 2021

The Nagoya Protocol is a major international agreement for global biodiversity governance and was meant to put an end to the uncompensated exploitation of natural resources and knowledge in the Global South. Its objectives were to ensure greater justice and equity between providers and users of genetic resources, raise the profile of the contributions and knowledge of indigenous and local communities, and decolonise research, while promoting the conservation of biodiversity. Thirty years after the Convention on Biological Diversity from which it originated, the authors examine the legal and practical manifestations of this virtuous framework, which entered into force in 2014. While it has fostered recognition of the plural nature of knowledge and helped to establish traceability of resources, it has also contributed to imposing a commercial vision of nature and knowledge, exacerbating identity politics, and making access to biodiversity more complex in an era of globalised research. This book presents an interdisciplinary dialogue based on feedback from researchers and conservation stakeholders (local communities, managers of collections and natural parks). Looking beyond the Nagoya Protocol, it invites us to question the relationships between societies and nature in light of the ecological emergency. It is intended for anyone with an interest in the economics of biodiversity and environmental justice.
Relationship between Collaboration in Work Support and Knowledge and Skills in Providing Support for Individuals with Disabilities
Authors: Maebara Kazuaki , Yaeda Jun
Published: December 2021

Background: There has been growing hope for initiatives supporting the transition of persons with disabilities from employment-related welfare services to employees in companies. This is against the backdrop of a significant increase in employment among persons with disabilities in Japan.

Objective: To improve the quality of this transition, this study examined the relationship between the collaboration of the Work Support Centers for Continuous Employment Type B (WSC-B) with vocational rehabilitation organizations (VROs) and knowledge and skills related to employment support.

Methods: A survey including all 122 WSC-B in L-Prefecture was conducted by postal mail. The respondents were asked to rate items on the following six levels concerning collaboration with VROs and understanding of VROs. We used the Japanese version of the Self-Assessment for Students or Counselors (SASC-J) to assess knowledge and skills related to work support.

Results: The t-test conducted on knowledge and skills status between WSC-B with a high degree of cooperation with VROs and those with low degrees confirmed significant differences among the various subsystems in VROs.

Conclusion: Based on our results, we suggest that maximizing the use of collaboration in work support will enhance the support provided by WSC-B and promote transition support for people with disabilities.
Transformation of the Value-Semantic Sphere of Pathological Players in the Conditions of Rehabilitation
Authors: Yurievna Zinina Anna , Dzakhotovna Gurieva Svetlana , Uruzbekovna Gogitsaeva Olga
Published: December 2021

The spread of gambling addiction is one of the serious problems of modern society. A person involved in gambling creates preconditions for inevitable failure. Effective rehabilitation involves the reconstruction of the personality and aims to return the addict to a healthy and socially valuable life. The value-semantic sphere serves as one of the factors of psychological adaptation and the purpose of psychological correction of game addicts. The present research aimed to study the peculiarities of the transformation of the value-semantic sphere of pathological players in the context of a rehabilitation program. The research involved 42 pathological players undergoing a rehabilitation program for 6 months. We used methods: "Diagnosis of Interpersonal Relationships" by Leary; "Personality Time Perspective Questionnaire" by Zimbardo; "Meaning-Life Orientations" Leontiev; Stolin's Self-Ratio Questionnaire; "Morphological test of life values" by Sopov and Karpushina and personal data questionnaire. As a result of the study, the connection between the participation in the rehabilitation program and the change of the relationship profile of the pathological players to a more independent one was found. Changes in the time perspective of positive future, an increase of meaningfulness of life, an increase of the level of self-esteem, and a decrease of self-blame were revealed. The change of value from material provision to self-development and acceptance of oneself in the context of rehabilitation was revealed. As a result of the research, it was established that in rehabilitation conditions, the transformation of the value-semantic sphere of pathological players towards more adaptive is possible.
Percepção sensorial de raízes de mandioca minimamente processada desenvolvida para agricultura familiar
Authors: Abreu Cleiton Moraes de , Castro Maria Rebeca Araújo , Gatti Victória Carolline do Moraes , Barata Henrique da Silva , Carvalho Fábio Israel Martins , Silva Priscilla Andrade
Published: December 2021

A mandioca (Manihot esculena Crantz) é classificada como o sexto mais importante alimento em todo o globo, sendo consumida por mais de 800 milhões de famílias em todo o mundo. O objetivo deste estudo consiste em determinar as características sensoriais da mandioca de mesa minimamente processada, produzida pelo Centro Tecnológico de Agricultura Familiar de Parauapebas (CETAF-Parauapebas), submetidas aos diferentes tratamentos para avaliar a qualidade e aceitabilidade dessa matéria-prima. Foram realizados os seguintes tratamentos: T1: raízes lavadas em água corrente; T2: raízes sanitizadas (150 ppm); T3: raízes sanitizadas (150 ppm) e acidificadas (1% de ácido cítrico) e T4: raízes sanitizadas (150 ppm) e branqueadas (55ºC / 10 minutos). As raízes foram avaliadas sensorialmente quanto aos atributos aparência, textura, sabor e impressão global, utilizando-se da escala hedônica estruturada de nove pontos, sendo os extremos desgostei muitíssimo (1) e gostei muitíssimo (9). Para a intenção de compra, utilizou-se a escala estruturada de cinco pontos, cujos extremos foram: eu certamente compraria (1) e eu certamente não compraria (5). A partir destes resultados, observou-se que a mandioca minimamente processada é uma alternativa viável já que apresenta alta qualidade nutricional, organoléptica, frescor, aroma e sabor, assim como praticidade e economia de tempo no preparo diário, com elevada aceitação sensorial pelos potenciais consumidores.
Geografia física aplicada com o geoprocessamento nos municípios de Salinópolis e São João de Pirabas
Authors: Santos Ana Marcela Alves dos , Leite Fabiana Cardoso , Fontenele Larissa Losleny Pinto , Souza Manoela Ferreira de , Barbosa Mateus Trindade , Carneiro Francimary da Silva , Alves Brendo Luiz Araújo
Published: December 2021

O objetivo deste trabalho é expor a geografia física aplicada com o geoprocessamento nos municípios de Salinópolis e São João de Pirabas no nordeste paraense. Através de visitas as cidades, sendo norteado por aulas expositivas em reuniões e revisões bibliográficas, para a produção e elaboração de produtos cartográficos. Os principais enfoques foram sobre as caracterizações das áreas de estudo, como as posições geográficas, as rodovias de acesso, as características geológicas, geomorfológicas, da vegetação, hidrografia das localidades estudadas, as principais formas de uso e ocupação e os processos de urbanização e econômico dos municípios. Foi observado que a área de Salinópolis sofre com constante ação dinâmica, tanto na morfologia quando econômica, e está dinâmica é visivelmente diferente da dinâmica do Munícipio de São João de Pirabas, principalmente no aspecto econômico.
Uso e impactos de fontes hídricas em região semiárida: um estudo de caso no assentamento novo assunção em Aracoiaba, Ceará
Authors: Brito Antônio Patrick Meneses de , Santos Ãtalo Magno de Melo , Pinto Olienaide Ribeiro de Oliveira , Salles Maria Gorete Flores , Pinto Ciro de Miranda
Published: December 2021

Desde os primórdios da humanidade a água se mantém como um dos principais recursos para a sustentação da vida na Terra. Nessa perspectiva, os estudos sobre os recursos hídricos tornam-se de extrema importância, principalmente em regiões áridas e semiáridas, onde a água encontra-se limitada. Nesse contexto, esta pesquisa tem como objetivo avaliar as fontes hídricas disponíveis em região semiárida, com um estudo de caso no assentamento Novo Assunção no município de Aracoiaba, Ceará. Além de apresentar os principais usos e como estes impactam na qualidade e quantidade da água local. Para essa pesquisa aplicou-se um questionário a fim de identificar o uso da água dos recursos e análises in loco para identificação visual das atividades potencialmente poluidoras e degradadoras. Identificaram-se duas fontes hídricas no Assentamento, um açude e um rio. Percebeu-se que as tipologias de uso da terra no entorno do açude, consiste em vegetação nativa, solo exposto e a mata ciliar do recurso. Os indicadores de erosão do solo identificaram uma variação de baixa à média vulnerabilidade. Já no segmento fluvial, identificou-se o uso da água para irrigação de hortaliças em canteiros e dessedentação de animais. Mapeou-se 4 classes de uso e ocupação do solo na Área de Proteção Permanente (APP) do rio, sendo elas, área de roçado, área de hortaliças, curral e áreas de solo exposto. As análises na água do rio, indicaram que os parâmetros Condutividade Elétrica (CE), turbidez e Sólidos Totais Dissolvidos (STD) apresentaram altas variações aos padrões de potabilidade principalmente no ponto 2.
ENERGETIC AND ECONOMIC ASPECTS OF TRIBOLOGICAL PROPERTIES OF AUSTEMPERED NODULAR CASTING
Authors: Ješić Dušan , Kovač Pavel , Savković Borislav
Published: December 2021

Tribological properties of austempered ductile irons, as well as of other materials, are determined by measuring the friction force in tribo-mechanical systems (energetic aspect) and by measuring wear parameters (economic aspects). Tribological properties of two types of austempered ductile irons are presented from both of these aspects. Experimental investigation was realised on "Pin on Disk" tribometer. PQ index was used as a wear parameter for wear intensity determination.
THE PREPARATION OF COMPOSITE MATERIALS BASED ON MAGNETITE NANOPARTICLES AND SODIUM ALGINATE FOR WASTE WATER PURIFICATION
Authors: Aroguz Ayse Z. , Teofilović Vesna , Karademir Sinem , Tanasić Ljiljana , Aydogan Sibel , Vukić Nevena , Budinski-Simendić Jaroslava
Published: December 2021

The use of synthetic chemical dyes in various industries, including plastics, paper manufacturing, cloth dyeing, printing and leather treatment, has increased considerably over the last years, resulting in the release of dye-containing effluents into the aquatic and soil ecosystems. There are many techniques to remove the waste after dying process (coagulation, chemical precipitation, reverse osmosis, extraction, filtration, biological treatment and adsorption). The releasing of dyes from many industrial plants is environmentally hazardous. The most important goal for the waste water purification is to find the low-cost adsorbents with high selectivity and long life. In our study, an effort has been made to prepare efficient composite materials for dyes removal from aqueous solution based on medium molecular weights deacetylated chitin i.e. poly(D-glucosamine) and a bio-degradable nontoxic anionic polysaccharide sodium alginate filled with magnetite nanoparticles. Alginate composite beads coated with poly(D-glucosamine) were prepared using layer-by-layer (LbL) deposition method. During the adsorption process the concentrations of dyes in solution waste were determined according to the general spectrophotometer method.
A NEW GENERATION OF ARMORED STEEL PLATES
Authors: Bernetič Jure , Kosec Borut , Kosec Gorazd , Gojić Mirko , Burzić Zijah , Nagode Aleš , Soković Mirko , Bizjak Milan
Published: December 2021

The engineers of PROTAC d.o.o. and the biggest Slovenian steelwork ACRONI d.o.o., in cooperation with domestic and foreign institutions of science, have been designed and developed a new generation of armored steel PROTAC 500. Steel PROTAC 500 belongs to the group of high strength low alloy (HSLA) steels. It is made in steelwork ACRONI d.o.o. by the standard industrial procedures. The relevant mechanical properties of that steel are achieved by corresponding heat treatment procedure: quenching and tempering. Preliminary tests of the mechanical properties of the steel have indicated the possibility of using steel PROTAC 500 for light armored vehicles. The presented work studied the response of new generation armored steel plates PROTAC 500 to the ballistic testing with armored piercing bullets with a core of tungsten carbide, charge 7.62 mm. However, the interactions between the piercing bullets and the armored steel plate were also investigated. The most obvious and significant phenomena in penetrating of the piercing bullets Nammo AP8 in steel target PROTAC 500 are strain hardening of steels, the appearance of cracks and local failure, adiabatic shear bands (ASB) with related phase transformations, and melting as well as alloying at the interface between bullet and steel plate.
ADDITIVE MANUFACTURING OF FUNCTIONAL PARTS BASED ON MATERIAL EXTRUSION TECHNOLOGY
Authors: Šljivić Milan , Fragassa Cristiano , Pavlović Ana , Kraišnik Milija , Ilić Jovica , Stanojević Mićo
Published: December 2021

This paper presents the advantages and the process of making of complex functional parts using additive manufacturing technology. Design and manufacturing of components were performed at the Laboratory for Technology of Plasticity and Processing Systems at the Faculty of Mechanical Engineering in Banja Luka. The parts were designed using SolidWorks and Catia software packages. Then, CatalystEX and Simplify3D software packages were used to process the CAD model and to prepare it for 3D printing, which included defining of the process parameters, generating layers and support. Functional parts were produced on 3D printers based on the principle of material extrusion. The results of this study show that additive manufacturing technology, specifically technology based on material extrusion, enables very fast production of complex functional parts, with high accuracy and much lower costs and development time compared to conventional technologies.
A parametric family of quartic Thue inequalities
Authors:   Abdelhafid Boussouf University, Rihane Salah Eddine , Hernane Mohand Ouamar ,   Université des Sciences et de la Technologie Houari-Boumedièene (USTHB), Faculté de Mathématiques, Laboratoire d’Algèbre et Théorie des Nombres, Togbé Alain ,   Purdue University Northwest
Published: December 2021

Let c\neq 0,-1 be an integer. In this paper, we use the method of Tzanakis to transform the quartic Thue equation x^4 -(c^2+c+4) x^3y +(c^2+c+3) x^2 y^2 +2 xy^3 -y^4 = \mu into systems of Pell equations. Then, we determine all primitive solutions (x,y) with 0<|\mu|\leq |c+1|.
Series expansion of the Gamma function and its reciprocal
Authors:   Faculty of Mathematics and Informatics, Sofia University, Petkova Ioana
Published: December 2021

In this paper we give representations for the coefficients of the Maclaurin series for \Gamma(z+1) and its reciprocal (where \Gamma is Euler’s Gamma function) with the help of a differential operator \mathfrak{D}, the exponential function and a linear functional ^{*} (in Theorem 3.1). As a result we obtain the following representations for \Gamma (in Theorem 3.2): \begin{align*} \Gamma(z+1) & = \big(e^{-u(x)}e^{-z\mathfrak{D}}[e^{u(x)}]\big)^{*}, \\ \big(\Gamma(z+1)\big)^{-1} & = \big(e^{u(x)}e^{-z\mathfrak{D}}[e^{-u(x)}]\big)^{*}. \end{align*} Theorem 3.1 and Theorem 3.2 are our main results. With the help of the first theorem we give our approach for finding the coefficients of Maclaurin series for \Gamma(z+1) and its reciprocal in an explicit form.
Formulas for the n-th prime number
Authors:   IBPhBME – Bulgarian Academy of Sciences, Atanassov Krassimir T.
Published: December 2021

A short review of formulas for the n-th prime number is given and some new formulas are introduced.
New consequences of prime-counting function
Authors:   University of Mouloud Mammeri, Idir Sadani
Published: December 2021

Our objective in this paper is to study a particular set of prime numbers, namely \ left \ {p \ in \ mathbb {P} \ \ text {and} \ \ pi (p) \ notin \ mathbb {P} \ right \} \ !.As a consequence, estimations of the form \ sum {f (p)}with p being prime belonging to this set are derived.
A simple proof of Linas’s theorem on Riemann zeta function
Authors:   Kaijo School, Shinjuku, Tokyo, Japan, Ikeda Jun , Kochiya Junsei ,   Kaijo School, Shinjuku, Tokyo, Japan, Ui Takato ,   Kaijo School, Shinjuku, Tokyo, Japan
Published: December 2021

Linas Vepštas gives rapidly converging infinite representatives for values of Riemann zeta function at \left(4m-1 \right), where m is a natural number. In this paper, we give a new simple proof. Also, we obtain two equation of values of Bernoulli numbers’ generating function by applying a corollary given in this paper.
Extracorporeal Shockwave Therapy for Foot and Ankle Disorders: A Systematic Review and Meta-Analysis
Authors: Tengku Yusof Tengku Nazim, B. , Seow Dexter , Vig Khushdeep, S.
Published: December 2021

Background: Extracorporeal shockwave therapy (ESWT) was first introduced into clinical practice in 1982 and has been a beneficial inclusion to the non-invasive treatment option of numerous orthopaedic pathologies. However, clinical evidence of the use of ESWT for various foot and ankle disorders has been limited with a consensus on its efficacy yet available. Therefore, the purpose of this study is to systematically review the literature, to provide a critical evaluation and meta-analysis for the use of ESWT in foot and ankle disorders.

Methods: The PubMed and Embase databases were systematically reviewed and clinical studies that reported ESWT use for various foot and ankle disorders included.

Results: A total of 24 clinical studies that included 12 randomized controlled trials and 12 case series were identified. Analysis of the evidence has indicated that ESWT can help manage plantar fasciitis, calcaneal spur, Achilles tendinopathy and Morton’s neuroma. Meta-analysis of the change in pre-to post-VAS overall scores for plantar fasciitis significantly favored ESWT compared to placebo/conservative treatment with a MD-3.10(95%Cl, -4.36 to -1.83; l2=68%; P<0.00001).

Conclusions: The current evidence has suggested that ESWT can provide symptomatic benefit to plantar fasciitis treatment, with minimal and unremarkable side effects. Overall, ESWT has been demonstrated to be safe treatment option with a favorable complication profile. Further well-designed studies of ESWT for the treatment of calcaneal spurs, Achilles tendinopathy and Morton’s neuroma are warranted to more soundly and safely support its current use. Future studies are suggested to investigate the optimization of ESWT treatment protocols.
Dinophiliformia early neurogenesis suggests the evolution of conservative neural structures across the Annelida phylogenetic tree
Authors: Fofanova Elizaveta , Mayorova Tatiana D. , Voronezhskaya Elena E.
Published: December 2021

Despite the increasing data concerning the structure of the adult nervous system in various Lophotrochozoa groups, the early events during the neurogenesis of rare and unique groups need clarification. Annelida are a diverse clade of Lophotrochozoa, and their representatives demonstrate a variety of body plans, lifestyles, and life cycles. Comparative data about the early development are available for Errantia, Sedentaria, Sipuncula, and Palaeoannelida; however, our knowledge of Dinophiliformia is currently scarce. Representatives of Dinophiliformia are small interstitial worms combining unique morphological features of different Lophotrochozoan taxa and expressing paedomorphic traits. We describe in detail the early neurogenesis of two related species: Dimorphilus gyrociliatus and Dinophilus vorticoides, from the appearance of first nerve cells until the formation of an adult body plan. In both species, the first cells were detected at the anterior and posterior regions at the early trochophore stage and demonstrated positive reactions with pan-neuronal marker anti-acetylated tubulin only. Long fibers of early cells grow towards each other and form longitudinal bundles along which differentiating neurons later appear and send their processes. We propose that these early cells serve as pioneer neurons, forming a layout of the adult nervous system. The early anterior cell of D. vorticoides is transient and present during the short embryonic period, while early anterior and posterior cells in D. gyrociliatus are maintained throughout the whole lifespan of the species. During development, the growing processes of early cells form compact brain neuropile, paired ventral and lateral longitudinal bundles; unpaired medial longitudinal bundle; and commissures in the ventral hyposphere. Specific 5-HT- and FMRFa-immunopositive neurons differentiate adjacent to the ventral bundles and brain neuropile in the middle trochophore and late trochophore stages, i.e. after the main structures of the nervous system have already been established. Processes of 5-HT- and FMRFa-positive cells constitute a small proportion of the tubulin-immunopositive brain neuropile, ventral cords, and commissures in all developmental stages. No 5-HT- and FMRFa-positive cells similar to apical sensory cells of other Lophotrochozoa were detected. We conclude that: (i) like in Errantia and Sedentaria, Dinophiliformia neurogenesis starts from the peripheral cells, whose processes prefigure the forming adult nervous system, (ii) Dinophiliformia early cells are negative to 5-HT and FMRFa antibodies like Sedentaria pioneer cells.
Cerebroplacental Ratio as a Predictor of Fetal Growth Restriction and Perinatal Outcome in Women with Hypertensive Disorder in Pregnancy: A Prospective Cohort Study
Authors: Saxena Upma , Alka .
Published: December 2021

Introduction: Hypertensive Disorders in Pregnancy (HDP), is a common complication of pregnancy leading to majority of adverse perinatal outcome. The timely diagnosis of fetal compromise, before irreversible damage, is possible by doing Cerebroplacental Ratio (CPR), on doppler ultrasonography. CPR is calculated as ratio of Pulsatility Index (PI) of Middle cerebral Artery and Umblical Artery (UA). It reflects both the circulatory insufficiency in UA along with adaptive changes in Middle cerebral Artery (MCA). Aim: To evaluate role of Cerebroplacental Ratio as predictor of Fetal Growth Restriction and perinatal outcome in singleton pregnancy with HDP at 28-41 weeks of gestation. Materials and Methods: A prospective observational cohort study was carried out in the Department of Obstetrics and Gynaecology, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India. The study included 150 women with singleton pregnancy, HDP and 28-41 weeks of gestation. Doppler ultrasound was performed and CPR calculated as ratio of MCA PI and UA PI, using ultrasound study performed within two weeks of delivery. All women were followed-up till delivery and perinatal outcome i.e., birth weight, preterm birth, cesarean for fetal distress, Meconium Stained Liquor (MSL) , APGAR at 5 minutes, still birth, Neonatal Intensive Care Unit (NICU) admission and early neonatal death, were recorded. The data entry was done in the Microsoft excel spreadsheet and the final analysis was done with the use of Statistical Package for Social Sciences (SPSS) software version 21.0. Results: Out of 150 women, 20% (30) had abnormal CPR. Abnormal CPR had significant association with Low Birth Weight (LBW) (p-value=0.0001), preterm delivery (p-value=0.0001), fetal distress (p-value=0.0001), caesarean for fetal distress (p-value=0.0001), 5-minute APGAR score <7 (p-value=0.0001), NICU admission (p-value=0.0001), Meconium Stained Liquor (MSL) (p-value=0.0001) and neonatal death (p-value=0.025). CPR had 100% sensitivity and 100% Negative Predictive Value (NPV) for predicting adverse perinatal outcome with diagnostic accuracy of 47.33%. Conclusion: The CPR is an independent predictor of Fetal Growth Restriction (FGR) in women with HDP. It can also independently predict perinatal outcome in women with HDP with or without FGR. Abnormal CPR had 100% sensitivity for identifying women with high risk of adverse perinatal outcomes, whereas normal CPR, with NPV of 100%, almost excludes it.
Oral Health Awareness and Practices among Pregnant Women Receiving Antenatal Care in a Low Resource Setting: A Cross- sectional Study of Antenatal Attendees in Enugu, Southeastern Nigeria
Authors: Onwuka Chidinma Ifechi , Udealor Peter Chukwudi , Iloghalu Emeka , Onwuka Chidozie Ifechi , Ezugwu Euzebus Chinonye , Menuba Ifeanyi Emmanuel
Published: December 2021

Introduction: Poor oral health status in pregnant women is known to be associated with poor outcomes in pregnancies. Despite this, the oral health status of pregnant women has been grossly overlooked during antenatal period. Aim: To determine the awareness and practices of oral health among pregnant women in Enugu, Southeastern Nigeria. Materials and Methods: This was a cross-sectional questionnaire based study of 413 women who attended the antenatal clinic of University of Nigeria Teaching Hospital (UNTH), Ituku/Ozalla from January 2018 to May 2018. An interviewer administered semi-structured questionnaire which was pretested before the commencement of the study was used. The information obtained was analysed using Statistical Package for the Social Sciences (SPSS) version 22.0. A p-value of <0.05 was considered statistically significant. Results: A total of 350 (84.75%) of the respondents used toothbrush and toothpaste for oral cleaning, 229 (55.45%) brushed at least twice a day while 258 (62.5%) changed their brushes every three months. Only 161 (39%) of the respondents knew that pregnancy can affect oral health while 101 (24.5%) of the respondents knew that poor oral health in pregnancy could have adverse effects on the unborn child; of whom only 30 (29.70%) got the information from their Obstetricians. Conclusion: There were knowledge gaps in the oral health of pregnant women in Enugu southeastern Nigeria. It is therefore important to provide oral health education for pregnant women during antenatal period in order to improve the health of the mother and her baby.
Scalp Reconstruction with Novel Unopposing Double Hatchet Flaps- A Case Series
Authors: Narayan Naveen , Shivaiah Ravi Hullamballi , Shivaraju Purushotham Tiruganahalli , Gowda Suhas Narayana Swamy , Kanmani Raghunandan Manjappa
Published: December 2021

Though there are regional and distant approaches for acquired scalp defect reconstruction, use of local flaps always have the advantage of retaining the topography of scalp. As in treatment of any other defect the choice of a local flap in scalp wound coverage is dictated by the location, size, and depth of the defect and by the availability of adjacent tissue for reconstruction. The versatile and adaptable triangular hatchet flap with a partial skin and subcutaneous bridged pedicle has great versatility. When used singularly or in pair to cover small and medium sized defects, utilising both rotation and advancement components for its movement, has the benefit of maintaining cosmetic appearance. Double hatchet flaps are used commonly in an opposing manner so as to convert a circular wound to a ‘S’ shaped suture line. In the current case series, with a description of four representative cases, authors have presented a modification of this double hatchet flap in unopposing configuration instead of an opposing pattern to cover scalp defects when the type and extent of injury affecting the scalp prevents in heaving flaps at 180 degree to each other. Authors opine that this technique adds into the ever expanding armamentarium of reconstructive surgeon and can be made use of in the aforementioned conditions wherein the standard pattern cannot be employed to cover moderate sized scalp defects.
The Role of LinkedIn Profile on Hiring Preference: Evidence from Bangladeshi Employers
Authors: Khan H. M. Nadim
Published: December 2021

This empirical paper aims to identify the role of LinkedIn, a profession based social networking site (SNS) on overall hiring preference (HP) in Bangladesh. As the independent components, the author considered LinkedIn profile richness (LPR), LinkedIn skill endorsement (LSE) and self-presentation on LinkedIn (SL). The author collected primary data based on 391 survey responses. For descriptive statistics, the author utilized SPSS (version 24) and for examining the hypotheses, he utilized structural equation modeling technique through AMOS 24. After a careful and thorough analysis, it was found that all the independent components have significant positive roles over HP. This empirical paper is expected to be a founding guideline for the jobseekers having active LinkedIn profiles. Further, it can also guide the hiring managers to formulate and implement an efficient social media policy (SMP) for hiring.
Ethnobotany of Aromatic Plants used by Phytotherapists in the District of Glazoue, Ouesse and Save in Benin
Authors: Faustin Assongba Yédjanlognon , Jacques Konko Cossi , Joseph Yoka , K. Joel Kpogniwe , G. M. Julien Djego , A. Sinsin Brice
Published: December 2021

Aromatic and medicinal plants (AMP) are flora with a fragrant essence.  The aim of this study is to identify the aromatic plants used by herbalists in three districts of the Departement des Collines. The method of data collection is based on ethnobotanical surveys of herbalists using the Dagnelli formula and pre-established survey questionnaires. The results of the survey of 300 herbalists identified 22 most commonly used aromatic plants, divided into 17 families and 21 genera. The most represented families are Lamiaceae (15%); Annonaceae (15%). Among the MAPs inventoried, the most cited and used are: Ocimum canum L. Ocimum gratissimum L.; Chenopodium ambrosioides L.; Hyptis suaveolens L.; Xylopia aethiopica (Dunal) A. Rich; Securidaca longepedunculata Fresen. MAPs treat 163 conditions identified in this study. Some of the AMP are used alone or in combination with other plants. AMP drugs are: leaves (64%), roots (23%). The ailments treated by the majority of AMP are: fever; tooth decay; conjunctivitis; constipation; haemorrhoids; hernia; inflammation; skin lesion; stomach ache; snakebite; causes of malaria; sores and painful periods. In view of the proven importance and different uses of AMP, it is necessary to study them further (ecology, distribution, and conservation status) in order to better prevent or cure human health.