bluuebunny/crossref_metadata_2025 huggingface dataset:
Factors influencing deforestation in Rwamwanja refugee settlement camp, Kamwenge district, Uganda
Authors: Esperence Uwiduhaye Bigaruka  , Paul Katamba  , David R Mutekanga
Published: May 2022

The tropical rain forest is facing increasing destruction and degradation and the ones in Africa much more so. The challenges include establishing the activities and factors which are contributing greatly to this situation. This study therefore critically assessed the influence of arable farming, lumbering and charcoal processing on deforestation in Rwamwanja refugee settlement camp in Kamwenge District, Uganda. This refugee camp is mainly habituated by refugees from the Democratic Republic of Congo (DRC). The socio demographic data indicates that most of the refugees interviewed were male (94.3%), most of them (60.3 %) were married and ranged between 35 to 50 years old (62.1%). The results show that all these factors (arable farming, lumbering and charcoal burning) significantly contribute to the high rate of deforestation in this camp. However, the major contributor is lumbering (3.30) closely followed by Charcoal (3.26). The above two factors are mainly fueled by high income from lumbering and lack of energy for domestic use. The results further show that the increasing human population due to increasing number of refugees is resulting in increased settlement which in turn leads to increased deforestation as the above demands grow in this refugee settlement camp. The study recommends that there is need for a more detailed study to identify practical alternatives which would lead to effective protection of the forests around this refugee settlement. It is also further recommended that education and awareness on tree conservation for the local refugee communities becomes part of the settling in program including identifying other income generating activities and other sources of energy for the refugees.
Factors affecting adherence to meat hygiene practices of beef butcheries in Kasangati Town Council, Wakiso District, Uganda
Authors: Grace Lamunu  , Christopher Ddamulira  , Florence Ajok Odoch  , Paul Katamba  , David R. Mutekanga
Published: May 2022

Poor meat hygiene practices are a major cause of food borne diseases which has led to morbidity and mortality globally. The World Health Organization estimates that over 600 million foodborne illnesses and 420 million deaths worldwide are due to poor hygiene practices in the meat sector, with the developing countries carrying the brunt of this load. The situation in Uganda is not much different from the global statistics and many studies have been undertaken especially in the capital city Kampala on butcher hygiene. What was still unknown is the situation in the many peri urban centers around the country which are having rising population and host many residences. This study was therefore carried out in Kasangati town council, Wakiso district, Uganda, to specifically establish the level of adherence to meat hygiene practices among butcher operators, identify the factors affecting adherence to meat hygiene practices and identify the relationship between these factors in this per-urban center in a developing country. Results of this study show that education level of butcher operators; availability of functional waste disposal tank in a butcher premises; availability and use of hand gloves were significantly associated with adherence to meat hygiene practices among the butcher operators. The study also found out that a large percentage (65.7%) of the butcher operators were not adhering to meat hygiene practices. This low adherence to the above factors which are significantly associated with meat hygiene practices inevitably contributes to contamination of meat and spread of meat borne diseases in this town. The paper concludes by recommending a more effective law enforcement and education and awareness by the public health authorities and making a practical monitoring and evaluation regime to reduce non adherence and increase adherence to meat hygiene practices.
Risk factors of the introduction and spread of goat pox virus in the Republic of Chad
Authors: BIDJEH Kebkiba
Published: May 2022

Goat pox is a highly contagious disease. The infectious agent is a virus belonging to the poxviridae family and the Capripoxvirus genus. This virus is resistant and can survive up to six months in dried scabs. The disease is usually spread by direct contact between healthy and sick animals because the infectious agent is found in nasal and ocular secretions through which it is eliminated. Nodules and scabs also contain large amounts of virus particles. Airborne transmission has also been observed, for example by inhalation of fumes from scabs, or indirect transmission through soiled objects/equipments or insect bites. Typical symptoms are lumps in the lips, eyes, nose, udder, genitals and the area around them. These nodules turn into vesicles, burst and form scabs. Other characteristic symptoms are fever, salivation, discharge from nose and eyes, and labored breathing. The disease exists in countries in North Africa and countries in South of the Sahara, Asia and Eastern Europe. In the Republic of Chad, outbreaks of poxviruses have been recorded for several years. At present, their existence is no longer in doubt. Unfortunately, no in-depth study has been carried out and statistical data from the Veterinary Services are lacking. Goat pox, one of the most widespread pox viruses, appears periodically. This disease is prevalent both in the cold dry season (December, January-February) and in the hot humid season (June-July) with variable mortality. Based on bibliographic data, this manuscript summarizes the different risk factors of introduction, contamination, transmission and spread of goat pox virus.
Mentoring pre-service teachers in situated learning: A case study of a Zimbabwean teacher training college
Authors: Sithulisiwe Bhebhe
Published: May 2022

Mentoring pre-service teachers on teaching practice is an important part of the teacher development process. Pre-service teachers initially did teaching practice in schools where they could put what they had learned in their teacher education institute into practice. Teaching practice is now possible in virtual classrooms. This connects mentorship to the situated learning theory, which holds that effective education necessitates learning rooted in authentic contexts of practice, where pre-service teachers will participate in activities within social communities. Two teaching practice coordinators, eleven lecturers, seventeen pre-service teachers, and ten mentor teachers who were purposefully selected to participate in the study were interviewed using qualitative research approaches. Face-to-face interviews and focus group discussions were used to gather information. In this paper, I discuss the aspects that contribute to effective TP mentoring implementation as well as the contextual learning theory. Collaboration, introspection, coaching, multiple practice, acquisition of new abilities, and authentic situations are among the factors shown in the study. The mentor teacher serves as a knowledge provider, facilitator, and mediator. In the college under study there is great emphasis on that pre-service teachers get attached to mentor teachers in their practicing schools.
Political representation of women in legislative assembly elections of Assam
Authors: Pal Deka  , Pranjal Kumar Chakravartty  , Kakumoni Borah
Published: May 2022

The representation of women in legislative assembly elections of Assam have not improved since independence. Although Assam has a dignified history of women but they are not included in decision making and party politics of the state. Assam had witnessed a decline of percentage of women elected members of legislative assembly (MLA). In 2021 lowest number of women MLA’s are elected in comparison to other consecutive years. Here in this study, an attempt is made to observe political party-wise change in percentage of elected women MLA’s of Assam from 2001 to 2021. Moreover, the study had tried to bring percentage comparison between elected male and female MLA’s of Assam. Further, the study had also observed difference between contested and won women candidates in Assam legislative assembly elections. The result of the study shows that there is need of further improvement in representation of women in Assam politics. The study also shows huge difference between male and female elected MLA’s in legislative assembly elections of Assam. Regional political parties of Assam should give more candidature to women candidates in legislative elections in comparison to national political parties of the country.
Evaluation of simple biosensors for efficient detection of coronavirus: A comprehensive review for the development of real-time monitoring systems
Authors: David P Tokpah  , Evidence Akhayere  , Doga Kavaz  , Charles F King  , Adeji Anthony Junior  , Tikonti Tyee
Published: May 2022

The origin of the virus known as coronavirus is unknown; the fact that this is the case lends credence to the opinion of the World Health Organization (WHO), which states that humans were most likely responsible for its genesis. At this very moment, the whole universe is confronted with a problem in the form of a catastrophic health crisis brought on by a widespread outbreak of the coronavirus. Even though it has been under control for a substantial length of time, this outbreak has not yet been brought under control or generated positive outcomes. Despite this, there has been no indication that it will. This is in spite of the fact that significant efforts have been invested in testing for COVID-19 contamination, isolating infected individuals, and isolating people who have been in touch with those infected cases. The Review of Simple Biosensors for Rapid Detection of Coronavirus recognized the evaluation of current proposals uncovered by researchers and bioengineers from all over the world about methods to control a coronavirus pandemic by rapid testing, in particular the review of simple biosensors. These researchers and bioengineers found current proposals about methods to control a coronavirus pandemic by rapid testing. These researchers and bioengineers uncovered the examination of the most recent suggestions. In recent years, the primary focus of biosensors as effective analytical equipment has been on full samples, with the ability to mark specimens. This shift in emphasis came about because of a shift in terminology. This has been shown to be the case in human as well as animal samples. In light of this, we have decided to do a comprehensive assessment of recently established biosensing technologies. Our main goal in doing this is to make it easier to spot coronavirus pandemics, which is why we are doing it.
Mechanism of ionized calcium (iCa) in odontogenesis stunting children: Review article including a new theory for future studies on eruption rate in stunting children
Authors: Sindy Cornelia Nelwan  , Udijanto Tedjosasongko  , Soegeng Wahluyo  , Ilvana Ardiwirastuti
Published: May 2022

Introduction: The normal development of the craniofacial complex can be predicted by the eruption rate. Delayed eruption is a condition that is associated with stunting. Stunting is caused by a decrease in extracellular serum iCa levels due to Environmental Enteric Dysfunction (EED), inadequate nutrition, and hormonal dysfunction. Calcium is 99 % of hydroxyapatite's composition. Dental Pulp Cells stem cell (DPCs), osteoblasts, and osteoclasts are all highly affected by extracellular calcium (iCa) levels, because there was calcium channels and receptors are found in their membranic. The aim of the review is to discuss how iCa influences the odontogenic process and the eruption pattern in stunting children. Methodology: Literature review and theoretical approach using data from Sci-Direct, GoogleScholar, and PubMed, which have been extracted using the PRISMA technique for articles based on keywords. Result: The procedure of searching for data using an online data base resulting obtained a total of 295 articles found from 2002–2022. At the feasibility stage, 295 articles have been screened and reviewed according to the exclusion and inclusion criteria, which are related to the keyword study of the literature in the search strategy. 26 articles were finally chosen to be analyzed. Conclussion: iCa influences odontogenesis and eruption processes in Stunting Children. Serum iCa decreased in stunting children.
A literary review on Pranashta Shalya with special reference to foreign body
Authors: Sumedh Vyankatesh Wasnik  , Tanuja Marotrao Naik
Published: May 2022

Among eight branches of Ayurveda (ashtang ayurveda), prime importance has been given to Shalyatantra i.e., surgical branch which exclusively deals with shalya nirharan means removal/extraction/treatment/management of anything disturbing physical and mental status of the body. Pranashta Shalya is a Sanskrit word meant for foreign particles embedded in human body which is not seen externally but body gives some specific signals of its identification or few special activities are need to discover a foreign particle in human body. In modern surgery it’s still a challenge for detection and excavation of retained foreign body. Due to lack of modern diagnostic tools in ancient period removal of retained foreign body could have been more challenging. Acharya Sushruta has described accurate and precise lakshana (symptoms and signs) along with chikitsa (treatment) of retained foreign body by the name of Pranashta Shalya in a separate chapter of Sutrasthana which helps surgeon of past and even today to overcome this difficulty.
Clouds independently appear to have as much or greater effect than man-made CO2 on radiative forcing
Authors: Michael O Jonas
Published: May 2022

The patterns of behaviour of clouds, both for cloud area and cloud optical thickness, are studied over the period of available data, 1983 to 2017. There was a decrease in cloud cover over the study period, while global surface temperatures increased. The patterns of clouds and temperature indicate that the cloud cover decrease could not have been caused by the increased surface temperature. The clear implication is that the decrease in global cloud area must have been caused by some other unspecified factor, and was not caused directly or indirectly by CO2. Evaluation of the changes in clouds and CO2 over the study period indicate that this unspecified factor had as much positive impact as the increase in CO2, with respect to the amount of radiation reaching the surface (radiative forcing), and possibly a much larger positive impact. The climate models, which have zero or negative cloud impact on radiative forcing independently from CO2, need to take this into account in order to avoid over-estimating the influence of CO2.
EFEKTIVITAS MODEL PEMBELAJARAN KOOPERATIF DENGAN PENDEKATAN SAINTIFIK TERHADAP HASIL BELAJAR MATEMATIKA KELAS XI MIA 2 MA DARUSSALAM BARANDASI
Authors: Khaerani Khaerani , Syamsuriyawati Syamsuriyawati , Arif Muh.
Published: May 2022

Penelitian ini bertujuan untuk mengetahui efektivitas model pembelajaran kooperatif dengan pendekatan saintifik terhadap hasil belajar matematika siswa kelas XI MA Darusslam Barandasi. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian eksperimen dengan subjek penelitiannya adalah siswa kelas XI MIA 2 MA Darussalam Barandasi . Desain penelitian yang digunakan adalah one group pretest- posttest design. Teknik pengumpulan data dengan menguunakan tes, angket serta lembar observasi. Data hasil penelitian terlebih dahulu dianalisis dengan menggunakan uji normalitas data, selanjutnya uji one sample t-test dan uji n- gain ternormalisasi. Hasil analisis menunjukkan bahwa hasil belajar, respon dan aktivitas peserta didik terhadap model pembelajaran kooperatif dengan pendekatan saintifik berada pada kriteria baik, sehingga dapat disimpulkan bahwa ada peningkatan yang signifikan.
«Guardo gli asini che volano nel ciel». Il viaggio di Stanlio e Ollio in Italia
Authors: Montanari Andrea
Published: May 2022

L’articolo racconta, a partire dal film del 2018 Stan & Ollie, il viaggio in Italia del duo comico più famoso del mondo, datato 1950. Fra il 1947 e il 1954, quando il successo in America iniziava a scemare, Stanlio e Ollio intrapresero una tournée europea in Francia, Inghilterra, Belgio e Danimarca, accolti ovunque in trionfo. Qui, infatti, il loro successo sembrava non aver mai avuto un calo; ovunque andassero, la risposta del pubblico era sempre la stessa: una grande e calorosa accoglienza.
“Una grande vittoria partigiana”. Cronaca della Battaglia di Vilano, 25 marzo 1944, dal Fondo Giuseppe Mari
Authors: Balsamini Luigi
Published: May 2022

Il 25 marzo 1944, nei pressi di Cantiano, sull’appennino pesarese, un nucleo di partigiani respinge le forze nazifasciste inviate per un rastrellamento in zona. Giorgio De Sabbata, commissario politico del distaccamento partigiano Fastiggi, racconta la battaglia in una relazione che viene qui trascritta e corredata da una nota introduttiva e di contesto. Il documento originale è conservato nel Fondo Giuseppe Mari, presso l’Istituto di storia contemporanea della provincia di Pesaro e Urbino.
RHESUS-CONFLICT: prevent according to world standards
Authors: Kukuruza I.L. , Titarenko N.V. , Vozniuk A.V. , Zasadniuk O.P. , Kelman V.V.
Published: May 2022

The article is devoted to the prevention of the development of rhesus-conflict. A literature review, clinical guidelines and recommendations for highlighting and discussing of this pathology are presented. The history of the formation of anti-rhesus immunoglobulin, the results of its first use in the pregnant women are described. The factors for predicting the risk of hemolytic disease of the fetus and newborn development, standards for the diagnosis of hemolytic anemia are given. The approaches to the management of this pathology, recommended by foreign professional societies of obstetricians and gynecologists, are presented. In the article there are the stages of rhesus-conflict prevention: antenatal prophylaxis at 28–34 weeks of gestation, postpartum prophylaxis if the newborn is Rh-positive, and the prophylaxis after pregnancy complications associated with prenatal fetal and maternal bleeding. The indications and doses of anti-rhesus immunoglobulin use during antenatal prophylaxis at 28–34 weeks of gestation are given. The management of postpartum prophylaxis is described in detail, which indicates the doses and method of administration of anti- rhesus immunoglobulin to non-immunized Rh-negative women in case of the birth of a Rh-positive child, the indications for increasing the dose of anti-Rh immunoglobulin are presented also. The importance of performing the Kleihauer-Betke test for assessing the volume of fetal maternal transfusion is described. The conditions during which the prevention of Rh-conflict is carried out after complications of pregnancy which are associated with prenatal fetal and maternal bleeding, anti-rhesus immunoglobulin are given. The approaches to the prevention of rhesus-conflict are considered, which are reflected in the clinical protocol for obstetric and gynecological care, which unites all the latest world recommendations.
Risk factors for recurrence of uterine fibroids
Authors: Tolstanova G.О.
Published: May 2022

The objective: a study of the risk factors and the frequency of recurrence of uterine fibroids (UF) after conservative myomectomy. Materials and methods. A clinical and statistical retrospective analysis of the long-term outcomes of surgical treatment of 40 patients in reproductive age (from 19 to 42 years) with UF was carried out based on the data of case histories, outpatient cards and data from a questionnaire/telephone survey. All women had a complicated gynecological and reproductive history. In the postoperative period, the patients received hormonal therapy with progestogens (in cyclic regime) and oral contraceptives for 6–12 months. For the diagnosis of UF recurrence, clinical examination, bimanual examination, transvaginal echography were performed every 3 months during the first 3 years, then every six months. The fact of UF recurrence was ascertained of the appearance at least of one myomatous node more than 1 cm in diameter. Results. The long-term results were studied in 36 out of 40 patients after conservative myomectomy. At the time of assessment, the average age of patients after surgery was 39.7±6.17 years, 4 (11 %) women of them were in active reproductive age, 11 (33.3 %) – late reproductive age, and 10 (27.7 %) – premenopausal period. The mean period of observations was 6.22±1.71 years. Recurrence of UF was diagnosed in 22 (55 %) patients, 3 (7.5 %) of them required repeated surgery (2 women after supravaginal amputation of the uterus, 1 – transcervical resection of the submucous node).The cumulative (accumulated) percentage of UF recurrence within 7 years after surgery was 67.4±8 % with the maximum increase of recurrence frequency in the 2nd and 3rd years after surgery (up to 31.7 6 % and 51.2±7 %, respectively). After conservative myomectomy, pregnancy occurred in 11 (27.5 %) women, including 2 out of 5 persons with infertility before surgery, and 4 out of 9 patients who had miscarriage in anamnesis. The maximum number of pregnancies (5) occurred in the interval from 1 to 1.5 years after surgery. Pregnancy ended in timely delivery in 7 patients, spontaneous abortion – 3 (7.5 %), induced abortion – 1 (2.5 %). All 7 pregnant women were delivered by caesarean section.Conclusions. A retrospective analysis of long-term outcomes of organ-preserving surgical treatment of patients of reproductive age with uterine fibroids determined a high frequency of myoma recurrence after conservative myomectomy, reaching 67.4±8 % in7 years after the operation. The greatest increase in recurrence was observed in the 2nd and 3rd years after surgery. The statistically significant risk factors for the development of recurrence of the disease were the number of myomatous nodes and the patient’s age (30–40 years). The use of hormonal therapy (norethisterone or oral contraceptives) after surgery did not lead to a decrease in the rate of recurrence of uterine fibroids. And although conservative myomectomy made it possible to increase the frequency of pregnancy in operated patients, the level of reproductive losses after surgery remained high (36.3 %).
Esensi Perbedaan Redaksi Perintah Membaca Dalam Al-Qur’an
Authors: Setyawan Setyawan
Published: May 2022

Redaksi perintah “membaca” dalam Al-Qur’an berbeda-beda, namun memiliki esensi yang sama, yaitu “qirâ’ah”, “tartîl” dan “tilâwah”. Untuk memahami dengan benar perbedaan tersebut perlu penelitian dan analisa yang mendalam dengan penelitian kepustakaan (library research), terutama dari aspek kebahasaan dan tafsir-tafsir. Redaksi “qira’ah” merupakan sebuah aktifitas intelektual yang terus menerus, mendalam dan intensif, yang meliputi membaca, menghafal, meneliti dan memahami. Adapun kata “tartîl” merupakan perintah bacaan yang berkualitas, yaitu sesuai dengan kaidah-kaidah membaca Al-Qur’an (ilmu tajwid), sehingga bacaan tersebut menjadi jelas, benar dan sesuai dengan aturan (kaidah). Sedangkan lafazh “tîlâwah” merupakan perintah untuk mengikuti bacaan dan hafalan yang benar tersebut dengan pemamahan dan amalan, sehingga redaksi tersebut mencakup iman dan amal shaleh.
Синтез и антимикробное действие в отношении Staphylococcus aureus и Pseudomonas aerugenosa производных нингидрина, изатина, 5-ацетил-4-гидрокси-1,3-тиазин-2,6-диона
Authors: Зухайраева Айшат Султановна , Великородов Анатолий Валериевич , Сароянц Людмила Валентиновна , Юшин М. Ю. , Луценко А. В. , Шустова Екатерина Александровна
Published: May 2022

Синтезированы новые производные нингидрина, изатина, 4-гидрокси-1,3-тиазин-2,6-диона и исследована их антимикробная активность в отношении условно-патогенной микрофлоры Staphylococcus aureus и Pseudomonas aerugenosa, выделенных из нейротрофических язв больных лепрой. Установлено, что антибактериальной активностью обладают соединения, относящиеся к производным халкона (МИК 2,31 ± 0,99 и 8,0 ± 2,83 мгк/мл), бензофурана (МИК 3,5 ± 1,66 мкг/мл), иминов (МИК 0,56 ± 0,16 и 3,01 ± 1,68 мгк/мл), индена (МИК 1,38 ± 0,38 мкг/мл) в отношении культуры Staphylococcus aureus. Кроме того, производные иминов (МИК 0,25 ± 0,05 и 0,63 ± 0,26 мкг/мл) и индена обладают и выраженным подавляющим действием в отношении культуры Pseudomonas aeruginosa. Бактерицидное действие на рост обеих культур оказывает 5-{(1E)-1-[2-(1-бензотиофен-2-ил)гидразинилиден]этил}-4-гидрокси-2H-1,3-тиазин-2,6(3H)-дион. На рост культуры Pseudomonas aeruginosa выраженное бактерицидное действие оказывает производное индена с морфолиновым фрагментом (МБК 2,3 ± 0,58 мкг/мл).
Effect of poultry manure and wood ash on the growth and yield of cucumber (Cucumis sativum L.) in Owerri Southeastern Nigeria
Authors:   Department of Crop Science and Technology, Federal University of Technology Owerri, Nigeria, Emma-Okafor L.C. , Obijuru E.E. ,   Department of Crop Science and Technology, Federal University of Technology Owerri, Nigeria, Nwokeji I.M. ,   Department of Crop Science and Technology, Federal University of Technology Owerri, Nigeria, Echereobia C.O. ,   Department of Crop Science and Technology, Federal University of Technology Owerri, Nigeria, Okoli N.A. ,   Department of Crop Science and Horticulture, Nnamdi Azikiwe Umiversity, Awka, Nigeria
Published: May 2022

An experiment was carried out at the Teaching and Research Farm of the Federal University of Technology, Owerri between April and June 2018 to determine the effect of poultry manure and wood ash on the growth and yield of cucumber in Owerri southeastern, Nigeria. The treatments consisted of 3 poultry manure rate (0. 5 and 10 t ha-1) and 3 wood ash rates (0, 2 and 4 t ha-1) laid in a 3 × 3 factorial Randomized Complete Block Design (RCBD). Data were collected on soil chemical properties, growth and yield parameters of cucumber, and were analyzed using ANOVA. Means were separated using Least Significant Difference (LSD) statistical method. Results showed that poultry manure and wood ash significantly affected the growth and fruit yield of cucumber. Soil amendment at 10 t ha-1 poultry manure and 4 t ha-1 wood ash recorded the highest number of leaves, vine length (cm) at 6 weeks after planting (47.10 and 127.6 respectively). Fruit yield (47.8 t ha-1), fruit length (29.93 cm/plant) and number of fruit (7.67) per plot was highest with 10 t ha-1 poultry manure and 4 t ha-1 wood ash application but was least in 0 t ha-1 poultry manure and 0 t ha-1 wood ash (0.7, 7.00 and 1.33) respectively. On the basis of consistent higher production, it is recommended that 10 t ha-1 poultry manure and 4 t ha-1 wood ash be adopted in cucumber production in southeastern Nigeria. Keywords: Poultry manure, wood ash, cucumber, growth, yield.
As publicações sobre o tratado algébrico de Omar Khayyam (1048-1131)
Authors: Silva Rosangela Araújo da , Morey Bernadete Barbosa
Published: May 2022

O presente estudo faz parte de uma pesquisa doutoral em desenvolvimento que trata da álgebra das equações por meio de resolução geométrica desenvolvida por Omar Khayyam (1048-1131) em seu Tratado Algébrico e sua aplicação ao ensino. Assim, o objetivo deste artigo é verificar as publicações já existentes nas bases de dados indexadas no Portal de Periódicos da Capes por meio de uma revisão de literatura sobre o tema. O estudo foi realizado por meio de uma pesquisa bibliográfica nas bases da Capes, mediante os termos descritores elencados pela junção das palavras-chave iniciais. Examinamos 21 bases (CNPq) de pesquisa mediante a sua relação com o Ensino de Ciências e Matemática, das quais apenas 11 contribuíram para com o resultado almejado. Efetuados os refinamentos, observamos que são escassas as contribuições para o ensino das equações cúbicas e que não possuem a mesma abordagem que a nossa pesquisa doutoral, assim como o maior número de textos encontrados é descritivo/expositivo sobre a álgebra de Omar Khayyam. Assim, comprovamos o ineditismo da pesquisa doutoral e encontramos novos textos que podem enriquecer nossa pesquisa.
descrição das "Lições de Geometria Diferencial" de Roberto Trompowsky (1853-1926)
Authors: Queiroz Antonio José Melo de
Published: May 2022

A história do Positivismo tem servido de tema para muitas pesquisas envolvendo as mais diversas áreas como Filosofia, Epistemologia, História, História das Ciências, Educação e outras. No Brasil, esta corrente filosófica influenciou fortemente a produção e o ensino das ciências, principalmente a Matemática. As ideias positivistas foram amplamente difundidas, entre os anos 1870 e 1920, nas escolas militares e politécnicas, mas também em algumas escolas de Direito e Medicina. Neste contexto estava inserido o nosso personagem principal, marechal Roberto Trompowsky Leitão de Almeida, que foi aluno e professor da Escola Militar, no Rio de Janeiro. Trompowsky era positivista e deixa transparecer sua estima por Auguste Comte (1798-1857) em suas Lições matemáticas. Assim, o problema de pesquisa tratado é a apresentação do livro Lições de Geometria Diferencial e de seu autor, Roberto Trompowsky. Os objetivos da pesquisa foram descrever, brevemente, a forma de organização, assuntos abordados e possíveis traços do positivismo na obra citada acima, bem como, apresentar fatos relevantes da carreira profissional do referido autor. A abordagem metodológica foi pesquisa qualitativa de cunho bibliográfico e documental, buscou-se um estudo do texto, seguindo, o mais próximo possível, a perspectiva historiográfica atualizada. Os resultados deste estudo são: um autor, militar, engajado em sua carreira docente e com formação acadêmica em uma instituição considerada difusora da Filosofia positivista apresentando uma obra com ampla variedade de conteúdos com ausência de exercícios para os estudantes resolverem, apresentação de problemas resolvidos, e por fim, saudação explícita e citações de Auguste Comte.
O conceito de função na Teoria das Funções Analíticas de Joseph-Louis Lagrange (1813)
Authors: Lira Alailson Silva de , Brandemberg João Cláudio
Published: May 2022

O século XVIII, com o advento da revolução industrial, presenciou um grande desenvolvimento científico e intelectual na Europa. Na França, além destes fatores, houve também o impulsionamento gerado pelas ideias iluministas e pela Revolução Francesa. Dentre os Matemáticos na França, Joseph-Louis Lagrange (1736 – 1813) foi um dos responsáveis pelo desenvolvimento do conhecimento neste período. Considerando as obras que obtiveram grande importância, destaca-se a intitulada “Théorie des Fonctions Analytiques” (TFA), publicada em 1797 e com segunda edição ampliada em 1813. Assim, o objetivo deste artigo é apresentar os conteúdos pertencentes à primeira parte da segunda edição e o conceito de função como elemento central de todo o seu embasamento no TFA. Para tanto, realizamos uma pesquisa histórica a partir da obra digitalizada. Com isso, podemos perceber que o conceito de função estabelecido no Théorie está conformado ao pensamento matemático da época, cujo desenvolvimento ocorre em uma tentativa de moldar o cálculo infinitesimal no que tange ao estabelecimento de “padrões rigorosos” com foco no pensamento algébrico desconsiderando, portanto, questões geométricas enfatizadas por Newton e Leibniz.
A Álgebra Geométrica de ʿUmar Al-Khayyāmī em sala de aula
Authors: Gomes Severino Carlos
Published: May 2022

O presente artigo é parte de um projeto de ensino e pesquisa em andamento que utiliza episódios da História da Matemática para promover formas de colaboração não individualistas de aprendizagem e para incentivar nos alunos o gosto pela resolução de tarefas não padronizadas com a exploração de novas possibilidades de ensino e aprendizagem. O objetivo do presente artigo é apresentar uma atividade sobre um episódio histórico e a partir dele exemplificar tarefas que podem ser elaboradas e utilizadas em sala de aula para discussão com alunos de ensino básico ou professores de matemática em formação. Para isso, utilizaremos um estudo de ʿUmar al-Khayyāmī sobre a resolução de equações cúbicas através de seções cônicas com auxílio do software Geogebra. Os resultados esperados versarão sobre a aprendizagem de saberes envolvendo a resolução apresentada por al-Khayyāmī, a interpretação utilizando construções geométricas das seções cônicas através do Geogebra e pela mobilização de elementos fundamentais para a formação ético-reflexiva de jovens estudantes de acordo com a Teoria da Objetivação.
Um perfil dos professores de Matemática da Escola Normal do Pará (1890 – 1920)
Authors: Pereira Marcos Fabrício Ferreira , Mendes Iran Abreu , Moia Romulo Everton de Carvalho
Published: May 2022

Este artigo tem como objetivo apresentar um perfil profissional dos professores de matemática da Escola Normal do Pará, com informações acerca do recrutamento, profissionalização, formação, organização, mobilização, história de vida, itinerários, expectativas, decisões e compensações desses profissionais no sentido de responder, qual o perfil profissional dos professores que ministraram conteúdos relacionados à Matemática na Escola Normal do Pará entre os anos de 1890 e 1910. Este texto assume uma metodologia de caráter qualitativo, embasado em fontes documentais, onde as informações apresentadas constam em documentos oficiais como discursos de governantes, regulamentos e programas de ensino. Percebemos que, com exceção de Alfredo Chaves, todos tiveram formação na Europa, sendo por meio de bolsa de estudos do governo provincial ou sendo estrangeiros contatados pelo Ministro dr. Pizza. Notamos também que entre os professores da Escola Normal figuraram artistas, engenheiros, políticos, advogados, etc.  Assim, os professores da Escola Normal do Pará eram considerados intelectuais que detinham grande prestígio social e com os dirigentes do Estado, sendo reconhecidos como um tipo de elite por conta de sua erudição.
Recortes da análise inicial sobre a obra A Cronologia das Nações Antigas de al-Biruni (973 - 1048)
Authors: Santos Maria Luíza dos , Sousa Giselle Costa de
Published: May 2022

Muitos trabalhos relevantes para o desenvolvimento da matemática foram desenvolvidos em terras muçulmanas. Entre os estudiosos que contribuíram nesse cenário temos Abu Arrayhan Muhammad ibn Ahmad al-Biruni (973-1048), um matemático islâmico medieval que viveu e desenvolveu seus estudos em um contexto de instabilidade e conflitos de poder e em razão, inclusive, da religião predominante em sua região. Neste artigo, temos como objetivo descrever quem foi al-Biruni e mostrar o contexto em que ele viveu, além de destacar os apontamentos iniciais da análise da obra A Cronologia das Nações Antigas (1000) de al-Biruni, como fruto de um projeto de iniciação científica descrevendo o processo de busca da obra. O artigo foi desenvolvido com base em uma pesquisa de metodologia qualitativa bibliográfica documental de modo que, a partir do levantamento de obras originais de al-Biruni, partimos para a escolha do documento cuja análise documental preliminar foi iniciada e é aqui apresentada. Por fim, iremos concluir o presente texto abordando a relevância que al-Biruni teve com base em seus estudos, destacando algumas dificuldades que nos deparamos no processo da pesquisa e o que apontam para o que se pretende desenvolver no futuro deste estudo, de forma a dar continuidade ao projeto.
O uso do Promptuario de John Napier (1550 – 1617) para o Ensino de Multiplicação à luz da percepção de Licenciandos da UECE
Authors: Ribeiro Pedro Henrique Sales , Oliveira Gisele Pereira
Published: May 2022

Como forma de tentar sanar as diversas dificuldades que envolvem o ensino de Matemática, destacam-se, dentre outras atividades, os cursos de extensão ofertados pelas universidades brasileiras, em consonância com a legislação, que objetivam promover uma melhor formação inicial de seus graduandos. Nesse sentido, foi oferecido um minicurso, intitulado “Manipulando com o Promptuario (1617) de John Napier para cálculos de multiplicação”, no qual se abordaram questões históricas e matemáticas do instrumento matemático Promptuario, presente no tratado Rabdologiae, publicado em 1617, por John Napier, bem como se refletiu acerca de sua inserção no ensino de Matemática. Dessa forma, este artigo tem como intuito conhecer as vantagens e as desvantagens da utilização do Promptuario para o ensino de Matemática à luz das considerações expostas pelos cursistas, valendo-se de uma abordagem qualitativa com características de cunho descritivo. Assim, constataram-se seis vantagens e três desvantagens distintas na utilização do artefato histórico Promptuario, em um contexto de ensino de Matemática, destacando-se a propriedade manipulativa e a história da Matemática como principais pontos positivos e a linguagem utilizada no tratado como um lado negativo relevante, que foi sinalizado como uma dificuldade que comprometeu a compreensão do texto. Em síntese, a partir das reflexões e das discussões realizadas junto aos cursistas, percebeu-se que existe um potencial didático na utilização desse instrumento, advindo da história da Matemática, para o ensino de Matemática e, em especial, para a multiplicação.
Sequência Fedathi, H5P e Papiro de Rhind para a promoção do ensino de Matemática
Authors: Araújo Carlos Henrique Delmiro de , Borges Neto Hermínio
Published: May 2022

Este trabalho é uma alternativa para a promoção do ensino de Matemática, com a temática potências, para turmas de 9° ano do ensino fundamental, em uma escola localizada em Canindé-CE, em período de ensino remoto, por meio do H5P e a utilização do problema 79 do Papiro de Rhind. Assim, tem-se como objetivo ilustrar o uso do Problema 79 do Papiro de Rhind para a promoção do ensino de potências, fundamentado pela Sequência Fedathi por meio da ferramenta interativa H5P. A pesquisa é norteada pela ação docente pautada na proposta metodológica Sequência Fedathi. A coleta de dados se deu por meio da plataforma Moodle Multimeios e averiguou que é possível um problema de texto original em uma ferramenta digital, com o amparo de uma metodologia de ensino, promover o ensino de Matemática. Portanto, incentiva-se o uso de textos originais e ferramentas digitais, com o aporte teórico da Sequência Fedathi, possibilitando outras formas de ensino que busquem o aprendizado dos estudantes.
Pesquisa sobre História da Matemática em artigos de periódicos brasileiros entre 1985 - 2018
Authors: Castillo Luis Andrés , Mendes Iran Abreu , Sánchez Ivonne C.
Published: May 2022

Neste artigo se descrevem resultados parciais de uma pesquisa vinculada a um projeto de pesquisa mais amplo aprovado e financiado pelo Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) sob a coordenação do Prof. Dr. Iran Abreu Mendes e intitulado História para o Ensino de Matemática na Formação de Professores e na Educação Básica: uma Análise da Produção Brasileira (1990 – 2017). Neste desdobramento, temos o propósito de constatar a distribuição da produção científica em formato de artigo que trata da História da Matemática.  A abordagem metodológica nesta pesquisa é do tipo bibliográfica. Dos 3.251 artigos mapeados foram filtrados apenas 475 que tiveram algum tema vinculado às modalidades de pesquisa em história da matemática de maneira direta ou indireta. No mapeamento se evidenciou que a maioria das produções analisadas constituem parte de estudos e pesquisa na História da Educação Matemática, seguida de trabalhos que focam a História e Epistemologia da Matemática, e um pequeno percentual de artigos que tratam de assuntos próprios da História para o Ensino da Matemática.
Selection of cutting modes for basalt plastics
Authors:   CJSC «Universal-AERO», Bolotnikov I. S. , Kosenko E. A. ,   Moscow Automobile and Road Construction State Technical University (MADI), Demin P. E. ,   Moscow Automobile and Road Construction State Technical University (MADI)
Published: May 2022

The analysis of the prospects for the use of basalt plastics in various industries has been carried out. The types of cutting tools used for machining PCM based on basalt fiber were studied. The results of mechanical processing of samples of basalt plastics by an end mill made of high-speed steel R6AM5, using a machine with numerical control in various modes (with varying tool speed and cutting speed) without and with the use of a lubricating coolant (coolant) are presented. The results of assessing the quality of cut surfaces based on their microanalysis performed using an optical microscope are presented. The optimal modes of cutting basalt plastic up to 3 mm thick with a high-speed steel end mill were determined. The analysis results of the absorption of cutting fluid by basalt plastic after mechanical processing are given. It was established that the best quality of the cut surface was achieved with the use of a coolant and reduced processing modes or without the use of a coolant and increased processing modes.
Study of influence of 3D-printing parameters on strength characteristics of plastic products
Authors:   Moscow Automobile and Road Construction State Technical University (MADI), Nefelov I. S. , Baurova N. I. ,   Moscow Automobile and Road Construction State Technical University (MADI)
Published: May 2022

It is shown that it is possible to improve the quality of finished products obtained by FDM 3D-printing by choosing the optimal printing mode. This will not only improve the quality, but also reduce the time for both printing and pre-production. The main parameters of 3D-printing modes are determined. A mathematical model has been developed that describes the effect of 3D-printing parameters on the strength characteristics of ABS-plastic products.
kebijakan fiskal dalam persfektif islam
Authors: Nirwana
Published: May 2022

Kebijakan fiskal merupakan kebijakan ekonomi yang berkiatan dengan penerimaan pemerintah. Bentuk penerimaan ini adalah pajak bersih yang diperoleh dari sektor rumah tangga. Pajak ini digunakan oleh pemerintah untuk membiayai pengeluaran yang disebabkan oleh kegiatan pemerintahan
Model analisis IS-LAM dalam perspektif islam
Authors: Khairunnisa Nur
Published: May 2022

IS-LM terdiri dari IS dan LM. IS adalah Invesment Saving yang berarti pasar barang sedangkan LM adalah Liquidity Money yang berarti pasar uang. Model IS-LM menjelaskan interaksi antara dua pasar, yaitu pasar barang dan pasar uang.
Makalah koperasi dan UMKM sebagai basic ekonomi rakyat
Authors: GEBY
Published: May 2022

Ekonomi kerakyatan (Demokrasi ekonomi) adalah sistem ekonomi nasional yang disusun sebagai usaha bersama berdasar atas asas kekeluargaan, di mana produksi dikerjakan oleh semua, untuk semua, di bawah pimpinan atau pemilihan anggota-anggota masyarakat yang bertujuan untuk meningkatkan kemampuan masyarakat (rakyat) dalam mengendalikan jalannya roda perekonomian .
Kebijakan moneter perspektif Islam
Authors: Khairunnisa Nur
Published: May 2022

Kebijakan Moneter adalah kebijakan pemerintah untuk memperbaiki keadaan perekonomian melalui pengaturan jumlah uang beredar. Untuk mengatasi krisis ekonomi yang hingga kini masih terus berlangsung, disamping harus menata sektor riil, yang tidak kalah penting adalah meluruskan kembali sejumlah kekeliruan pandangan di seputar masalah uang.
The historical impact of anthropogenic air-borne sulphur on the Pleistocene rock art of Sulawesi
Authors: Gagan Michael , Halide Halmar , Permana Raden , Lebe Rustan , Dunbar Gavin , Kimbrough Alena , Scott-Gagan Heather , Zwartz Dan , Hantoro Wahyoe
Published: May 2022

The Maros-Pangkep karst in southwest Sulawesi, Indonesia, contains some of the world’s oldest rock art. However, the Pleistocene images survive only as weathered patches of pigment on exfoliated limestone surfaces. Salt efflorescence underneath the case-hardened limestone substrate causes spall-flaking, and it has been proposed that the loss of artwork has accelerated over recent decades. Here, we utilise historical photographs and superposition constraints to show that the bulk of the damage was present before 1950 CE, and describe the role of anthropogenic sulphur emissions in promoting gypsum-salt efflorescence and rock art decay. The rock art shelters have been exposed to domestic fire-use and intensive rice cultivation with post-harvest burning of straw for hundreds (if not thousands) of years, both of which release chemically reactive sulphur oxides for gypsum formation, with cumulative effects. Analysis of time-lapse photography indicates that the rate of rock art loss may be on the decline, consistent with the history of fire-use in southwest Sulawesi. At present, vandalism and sulphur emissions from diesel-powered traffic and cement-based infrastructure development constitute localised threats. Our findings indicate that there are grounds for being cautiously optimistic that targeted conservation measures will ensure the longevity of some of our oldest artistic treasures.
Efficient Probabilistic Prediction and Uncertainty Quantification of Hurricane Surge and Inundation
Authors: Pringle William , Burnett Zachary , Sargsyan Khachik , Moghimi Saeed , Myers Edward
Published: May 2022

This study proposes a methodology for efficient probabilistic prediction of near-landfall hurricane-driven storm surge, tide, and inundation. We perturb forecasts of hurricane track, intensity, and size according to quasi-random low-discrepancy Korobov sequences of historical forecast errors with assumed Gaussian and uniform statistical distributions. These perturbations are run in an ensemble of hydrodynamic storm tide model simulations, and the resulting set of maximum water surface elevations are used as a training set to develop a Polynomial Chaos (PC) surrogate model from which global sensitivities and probabilistic predictions can be extracted. The maximum water surface elevation is extrapolated over dry points incorporating energy head loss with distance to properly train the surrogate for predicting inundation. We find that the surrogate constructed with 3rd order PCs using Elastic Net penalized regression with Leave-One-Out cross-validation provides the most robust fit across training and validation sets. Probabilistic predictions of maximum water surface elevation and inundation area by the surrogate at 48-hour lead time for three past U.S. landfalling hurricanes (Irma 2017, Florence 2018, and Laura 2020) are found to be reliable when compared to best-track hindcast simulation results, even when trained with as few as 19 samples. The maximum water surface elevation is most sensitive to perpendicular track offset errors for all three storms. Laura is also highly sensitive to storm size and has the least reliable prediction. This methodology is built into an open-source Python framework available from https://github.com/noaa-ocsmodeling/EnsemblePerturbation.
Assessing sensorimotor synchronisation in toddlers using the Lookit online experiment platform and automated movement extraction.
Authors: Rocha Sinead , Addyman Caspar
Published: May 2022

Adapting gross motor movement to match the tempo of auditory rhythmic stimulation (sensorimotor synchronisation; SMS) is a complex skill with a long developmental trajectory. Drumming tasks have previously been employed with infants and young children to measure the emergence of rhythmic entrainment, and may provide a tool for identification of those with atypical rhythm perception and production. Here we describe a new protocol for measuring infant rhythmic movement that can be employed at scale. In the current study, 50 two-year-olds drummed along with the audiovisual presentation of four steady rhythms, using videos of isochronous drumming at 400, 500, 600 and 700 ms IOI, and provided their spontaneous motor tempo (SMT) by drumming in silence. Toddlers’ drumming is observed from video recordings made in participants’ own homes, obtained via the Lookit platform for online infant studies. We use OpenPose deep-learning model to generate wireframe estimates of hand and body location for each video. The vertical displacement of the hand was extracted, and the power and frequency of infants’ rhythmic entrainment quantified using Fast Fourier Transforms. We find evidence for age-appropriate tempo-flexibility in our sample. Our results demonstrate the feasibility of a fully digital approach to measuring rhythmic entrainment from within the participant’s home, from early in development.