bluuebunny/crossref_metadata_2025 huggingface dataset:
The Dual Method (Dye and Ultrasound) for Axillary Mapping in Patients Receiving Neoadjuvant Chemotherapy for Locally Advanced Breast Cancer
Authors: Kumar Deepak , Chintamani  , Naghma Shahida , Gupta Sajal
Published: December 2021

Background:

Sentinel lymph node (SLN) remains one of the most important indicators of axillary lymph node status, defining the prognosis of breast cancer (BC) patients. The present study was done to map axillary SLN using dual method of intraoperative axillary ultrasound-guided (USG) and methylene blue dye, in patients receiving neoadjuvant chemotherapy (NAT) for locally advanced BC.

Methods:

A prospective interventional cross-sectional study was conducted on 36 core-needle biopsy-proven cases of locally advanced breast carcinoma (Stage IIb and Stage III) who received NAT. The SLNs as identified by the bluest staining node (dye method) and the node with a needle inserted in it through axillary USG method were dissected and sent for frozen section in normal saline. It was followed by complete axillary dissection and final histopathology reporting. Diagnostic test was used for calculation of sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV).

Results:

After NAT, 26/29 patients with pre-NAT staging of N1 and 5/7 patients with pre-NAT staging of N2 showed significant downstaging of the nodal status after NAT (P < 0.001). We found that the dual method showed similar sensitivity to the dye method and the USG method (94.74%). But, the specificity, PPV, and NPV of the dual method although similar to the dye method (76.47%, 81.82%, and 92.86%, respectively) were lower than that of the USG method (82.35%, 85.71%, and 93.33%, respectively).

Conclusion:

In conclusion, dual method (dye and USG) is a good attempt in increasing the SLN detection but it is not a powerful test in the application of avoiding axillary lymph node dissection. The comparable sensitivity but lower specificity in determining the SLN restricts its use, and warrants future studies with contrast-enhanced USG to decrease the false negatives.
Sharp stability of Brunn–Minkowski for homothetic regions
Authors: van Hintum Peter , Spink Hunter , Tiba Marius
Published: December 2021

We prove a sharp stability result concerning how close homothetic sets attaining near-equality in the Brunn–Minkowski inequality are to being convex. In particular, resolving a conjecture of Figalli and Jerison, we show there are universal constants

\smash{C_n,d_n>0}

such that for

\smash{A \subset \mathbb{R}^n}

of positive measure, if

\smash{|\frac{A+A}{2}\setminus A| \le d_n |A|}

, then

\smash{\lvert\operatorname{co}(A)\setminus A| \le C_n |\frac{A+A}{2}\setminus A|}

for

\smash{\operatorname{co}(A)}

the convex hull of

\smash{A}

.
A proof of a conjecture of Shklyarov
Authors: Brown Michael K. , Walker Mark E.
Published: December 2021

We prove a conjecture of Shklyarov concerning the relationship between K. Saito’s higher residue pairing and a certain pairing on the periodic cyclic homology of matrix factorization categories. Along the way, we give new proofs of a result of Shklyarov (Corollary 2 of [Adv. Math. 292 (2016), 181–209]) and Polishchuk–Vaintrob’s Hirzebruch–Riemann–Roch formula for matrix factorizations (Theorem 4.1.4 (i) of [Duke Math. J. 161 (2012), 1863–1926]).
Automotive Cybersecurity: An Introduction to ISO/SAE 21434
Authors: Ward David , Wooderson Paul
Published: December 2021

Industries, regulators, and consumers alike see cybersecurity as an ongoing challenge in our digital world. Protecting and defending computer assets against malicious attacks is a part of our everyday lives. From personal computing devices to online financial transactions to sensitive healthcare data, cyber crimes can affect anyone. As technology becomes more deeply embedded into cars in general, securing the global automotive infrastructure from cybercriminals who want to steal data and take control of automated systems for malicious purposes becomes a top priority for the industry. Systems and components that govern safety must be protected from harmful attacks, unauthorized access, damage, or anything else that might interfere with safety functions. Automotive Cybersecurity: An Introduction to ISO/SAE 21434 provides readers with an overview of the standard developed to help manufacturers keep up with changing technology and cyber-attack methods. ISO/SAE 21434 presents a comprehensive cybersecurity tool that addresses all the needs and challenges at a global level. Industry experts, David Ward and Paul Wooderson, break down the complex topic to just what you need to know to get started including a chapter dedicated to frequently asked questions. Topics include defining cybersecurity, understanding cybersecurity as it applies to automotive cyber-physical systems, establishing a cybersecurity process for your company, and explaining assurances and certification.
Biodegradation potential of immobilized bacteria in the treatment of Tannery Industrial effluents from industrial estates in Kano State, Nigeria
Authors: Abdullateef B. , Shuaibu T. G. , Babagana K., , Suleman H. B. , Dauda B.
Published: December 2021

Industrial Effluents Samples from Gashash Tanneries (TAN1) in Bompai Industrial estate, Larabee Tannery Industry (TAN2) in Sharada Industrial estate and Z Tannery Industries (TAN3) in Challawa Industrial estate, Kano State, Nigeria were collected over a period of six months (August 2017 to January 2018) for assessing the biodegradation potentials of bacteria in the treatment of organic pollutants within the effluents. Bacteria were isolated from the effluents and immobilized on agar-agar. Different masses (5 g, 10 g, 15g, 20 g, and 25 g) of the bacteria were used in the treatment of 250 ml of the effluents for ten days in a shaker incubator (Gallenkamp-OC-4364-L) at the temperature 30 °C and speed of 60 rpm. Pre-treatment analysis of the effluents for Temperature, pH, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Suspended Solid (SS) and Total Dissolved Solids (TDS) gives the following results; temperature (ºC) ranged (26.38±3.81-30.33±3.79); pH (5.35±1.57-9.00±0.78); BOD (13.85±6.42-38.75±16.20); COD (1406±208-3532±1373); SS (208±235-780±739) and TDS (266±253-5276±2971). No statistical differences (p ≤ 0.05) was observed for all the results among the different industries. The bacterial isolates were identified as Neisseria spp, Bacillus cereus, and Staphylococcus aureus, in TAN1, TAN2, and TAN3, respectively. After treatment of the effluent with the different masses of the isolated bacteria, the mean level of BOD was found to range as (0.55±0.36-6.92±5.49); COD (ND-3134±1595); SS (18±022-898±672) and TDS (4±002-83±078). The results of Post-treatment analysis showed that there is overall decrease in the levels of the parameters determined when compared with that of the pre-treatment. The overall percentage reduction of the immobilised bacteria in the treatment of the respective effluents was in the order TAN2 (72%)>TAN1 (70%)>TAN3 (62%). Hence, the immobilized bacteria are having higher biodegradation potential for the treatment of the tannery effluents.
Influence of haematological profile on the exercise capacity of children with sickle cell disease in Kano
Authors: Adeyinka O. , Badaru U.M. , Nuhu J.M. , Ahmad R.Y. , Bello B. , Nura G.
Published: December 2021

The Exercise Capacity (ExC) of children with sickle cell disease (SCD) may be influenced negatively by both haematological and environmental factors.This study aimed to assessthe influence of haematological profile on the ExC of children with SCD in Kano and to ascertain the safety of conducting 6 minute walk test (6MWT) on those children. In the cross-sectional survey, 162 children were recruited from Murtala Mohammed SpecialistHospital, Kano. Each of them walked to-and-fro for 6 minutes on a 10 meter marked level floor at their own walking pace in order to determine their actual 6 minute walk distance (6MWD). The actual 6MWD was compared with a predicted one in order to determine their ExC.  Full blood count was used to evaluate haematological profiles. The data wereanalysed with Pearson product moment correlation and unpaired t test, at a level of significance of p<0.05 using SPSS version 20. Results showed that seventy (70) males (43.2%) and ninety two (92) females (56.8%) with mean age of 10.7±3.27 years took part in the study. The actual 6MWD was 366.20 m ± 59.88m (95%CI=356.91m - 375.49m) which was 59.17% of the predicted one. ExCcorrelated with each of White blood cell count (WBC)(r= - 0.22; p=0.005), Sex (r= - 0.27; p=0.001) and age (r=0.19; p=0.013). None of the participants experienced exercise-induced vaso-occlusive crisis during or immediately after the 6MWT.It was concluded that infection (signified by increased WBC count) and female gender have negative influence on  ExC. 6MWT is safe to be performed by children with SCD.
Influence of physical activity level and body adiposity on lumbar multifidus muscle fat infiltration of low back pain individuals
Authors: Dambele, M.Y. , Yamsat N.A. , Raheem S. , Akindele M.O.
Published: December 2021

The stability of the spinal column is largely dependent on the integrity of the spinal muscles, especially the multifidus muscle. However, this important role of the multifidus muscle might be compromised due to both mechanical and non-mechanical causes leading to change in its contents, fat deposition and reduction in the cross-sectional area. This study was carried out to determine the influence of physical activity level and body adiposity indices on lumbar multifidus muscle (LMM) fatty infiltration among individuals with low back pain (LBP). This was a cross-sectional study in which 94 participants, male and female samples with non-specific LBP were recruited conveniently and assessed for LMM fat infiltration, pain intensity, functional disability, physical activity and socio-demographic variables. There were positive and moderate correlations between LMM fatty infiltration body mass index (BMI) (r=0.575, p=0.001), waist circumference (WC) (r=0.514, p=0.001) and gender (r=0.409, p=0.001) for normally distributed data using Pearson moment correlation coefficient. For not normally distributed variables, LMM fatty infiltration was moderately and positively correlated with gender (r=0.422, p=0.001), %body fat (r=0.621, p=0.001), visceral fat (r=0.470, p=0.0001), Oswestry Disability Index (ODI) (r=0.238, p=0.021) and visual analogue scale (VAS) (r=0.232, p=0.024) respectively. However, there was a weak negative correlation between LMM fatty infiltration and occupation (r=p=0.046). There were significant differences between male and female multifidus fat infiltration and body adiposity indices. There was a positive relationship between multifidus fatty infiltration and BMI, gender, %body fat, visceral mass, ODI and VAS, while we observed a negative relationship between lumbar multifidus fatty infiltration and occupation. Furthermore, the best correlate of lumbar multifidus % body fat.
Short communication extraction and phytochemical analysis of Hyptis spicigera leaves
Authors: Idi A. , Muhammad I.U.
Published: December 2021

Plants are recognized in the pharmaceutical industry for their broad structural diversity as well as their wide range of pharmacological activities, which is due to their biologically active compounds known as phytochemicals. The present study reports the extraction, thin layer chromatography and screening of phytochemical constituent of Hyptis spicigera leaves. The thin layer chromatography of the leave extract shows 11 bands with Rf values of 0.03, 0.06, 0.09, 0.12, 0.17, 0.19, 0.20, 0.23 and 0.31 respectively. Qualitative phytochemical screening showed the presence of alkaloids, flavonoids, steroids, emodins, and cardiac glycoside while phenols, tannins, terpenoids, tri terpenoids and anthraquinones were absent. The presences of these phytochemicals showed that Hyptis spicigera leaves may be useful for medicinal purpose.
Comparative bacteriological analysis of frozen and fresh chicken meats sold around old site Bayero University Kano
Authors: Abdu Habibu Usman , Abubakar Aisha Mustapha
Published: December 2021

Foodborne pathogens are serious public healthproblems that greatly affect the cost of food production and healthcare while poultry are often associated with foodborne disease outbreaks. This study aimed at investigating the occurrence and distribution of bacterial pathogens associated with chicken meats sold around Bayero University, Kano old site. A total of twenty (20) meat samples comprised of 10 frozen and ten freshly slaughtered chicken were purchased from different selling outlets around the study area. The samples were processed using standard cultural and biochemical procedures. The results of the study showed the mean aerobic mesophilic bacterial count of 5.93 x 106 CFU/g and 3.12 x 106  CFU/g for frozen and freshly slaughtered chicken meat samples respectively. The coliform counts were 420.1 and 347.7 CFU/100g for frozen and freshly slaughtered chicken meat samples respectively. The distribution of different bacterial species revealed E. coli (26.0%), Klebsiella spp (4.0%), Salmonella spp (19.5%), Campylobacter spp. (14.6%) and Staphylococcus aureus (30%) in frozen chicken meat samples while freshly slaughtered chicken meat samples revealed E. coli (21.0%), Klebsiella spp (8.9%), Salmonella spp (30%), Campylobacter spp. (15.0%) and Staphylococcus aureus (24.0%). This showed that frozen chicken meats were more contaminated than freshly slaughtered chicken meats which might be associated with poor handling and storage conditions.
Public road transport system and the spread of communicable diseases: Perspectives of operators and passengers in Accra, Ghana
Authors: Darko Akoto Otupiri , Mariwah Simon , Abane Albert Machistey , Amoako-Sakyi Regina Obilie , Pereko Kingsley Asare
Published: December 2021

In spite of its role in the development of nations, transport has also been identified as a means of spreading some communicable diseases. However, few studies have been conducted to assess the spread of diseases on road transport. This study sought to explore the views of operators and passengers about the spread of communicable diseases on the public road transport system in Accra, Ghana. Adapting the Disease Transmission Cycle as the conceptual framework, and following a qualitative research method, data for the study were collected through in-depth interviews and observations and were analysed manually based on the emerging themes. Though various diseases were identified to spread on the public road transport system, there were divergent views on the risk of being infected. Meanwhile, respondents indicated they would feel uncomfortable putting up with people suspected to be infected with communicable diseases. The study emphasises strict adherence to internationally acceptable standards on road transport in order to minimize the spread of communicable diseases on public transport in Ghana.
Dimensions of human security and socio-economic development in Ilorin metropolis, Kwara State, Nigeria
Authors: Oloyede Orire Ismaila , Dare Ogunfolaji
Published: December 2021

Insecurity has become an important challenge to global human development. While wars among countries have reduced in the 21st century compared to previous centuries, civil wars and other forms of internal violence and conflicts have continued to have devastating effects on human populations. This paper aims to examine the relationship between aspect of human security and socio-economic development in Ilorin metropolis. Primary data were sourced through structured questionnaire coupled with personal interviews to elicit responses to work on. Secondary data were sourced from published documents of the National Population Commission and the State Bureau of Statistics, journals, and other relevant literatures. Data collected were analysed using the Z-score, Lorenz curve, and Regression analyses. The study reveals that the present adaptive and institutional strategies aimed at mitigating human insecurity in the study area are rather insufficient. Using the widest bow of the Lorenz curve, the level of disparity is 18%, depicting a disparity in the pattern of socio-economic development. The conclusion from the study is that many of the sampled respondents still find it hard to satisfy their basic needs from the environment in socially acceptable standards. Given this, the following recommendations are made to improve the quality of human life in Ilorin. Policy makers should be committed to the task of advancing the socio-economic well-being of urban dwellers. Government should help by implementing policies addressing basic human security especially through the provision of infrastructural facilities, and employment opportunities thereby helping to shape the quality of life and income diversification.
Status teoretyczny emblematu w polskiej dekoracji
Authors: Górska Magdalena Kinga
Published: December 2021

The Theoretical Status of the Emblem in Polish Decorative Art

This paper argues that the theoretical status of the emblem in decorative art has methodological significance in emblem studies and art history, comparable to its status in the so-called book’s editorial frame. This claim is justified in the historical and theoretical tradition of defining emblems in the sources. The departure point for the author’s considerations comes from the findings of applied emblematics, and its foundation is provided by the theoretical sources describing symbolic genres (scil. emblema, symbolum, hierogliphicum) published in Poland from the 16th to the 18th century, including books of poetics, rhetoric, dictionaries and compendia. The first part of the article presents an overview of research on decorative emblems in Poland, together with factors responsible for the scarcity of such studies, including the lack of symbolic typology of the decorations, and the division into literary and non-literary studies, motivated by the philological roots of emblem studies. It is noted that the emblemata in the so-called book’s editorial frame and those in decorations should be studied separately, as the latter are of ornamental nature, and require a distinct order of perception, explication, and the recipient’s role. Besides, it is pointed out that the anachronism of the 16th-century formulae of emblema raises problems for the genological classification of Polish decorations, and so does the inter-genre, compendiumtype pattern of symbolism dominant in the 18th century. The second part of the article discusses the definition of the emblema, focusing on its details relevant for the artistic practice and present-day genre classification, such as technique, composition, the content of the image, which is confronted with Polish historical materials. The analysis carried out in the paper supports the claim that providing a genelogical definition of a work of art sheds light on its artistic rendition and aesthetic value. It also enhances the perspective on emblem studies, the workshop of an emblem artist and the reception of the emblem. Additionally, it enables the verification of synthetic accounts and research practice, offering a profound reflection on the chronology and previous conceptions of the emblem. Finally, it helps to formulate postulates, which can be useful for the met
Piql. Long-term preservation technology study
Authors: Sabliński Jędrzej , Trujillo Alfredo
Published: December 2021

The purpose of the analysis is to demonstrate the effectiveness of Piql technology data storage for long-term preservation. This technology has been confirmed by certified laboratory tests. The article presents a unique and effective technology for perpetual storage of data on physical media and a detailed description of data recording methods, including the equipment needed for this process. It also presents the conditions of packaging, storage, transport and protection of piqlFilm media, based on the experience of durability of this medium over the past several decades. The idea behind the creation of this technology, in addition to permanent storage, is the ability to read the stored data in the distant future. The data is stored in an open format, allowing read access without temporal or technological limitations. Piql has also, taking advantage of the unique geo-climatic conditions on the Arctic island of Svalbard, established a specialized archive called the Arctic World Archive or the End of the World Library, to store the most valuable data of international institutions and companies as well as the world’s cultural heritage.

Piql. Studium technologii długotrwałej ochrony

Celem analizy jest przedstawienie skuteczności zapisu danych w technologii Piql, w celu ich długoterminowej ochrony. Technologia ta została potwierdzona certyfikowanymi badaniami laboratoryjnymi. W artykule została zaprezentowana unikalna i skuteczna technologia wieczystego przechowywania danych na nośniku fizycznym oraz szczegółowy opis metod zapisu danych, wraz z urządzeniami potrzebnymi do tego procesu. Przedstawiono także warunki pakowania, magazynowania, transportu i zabezpieczenia nośnika piqlFilm, bazując na doświadczeniach trwałości tego nośnika z ostatnich kilkudziesięciu lat. Ideą przyświecającą stworzeniu tej technologii, oprócz trwałego przechowania, jest możliwość odczytu zapisanych danych w odległej przyszłości. Dane są przechowywane w formacie otwartym, umożliwiającym dostęp do odczytu bez ograniczeń czasowych i technologicznych. Piql stworzył również specjalistyczne archiwum, wykorzystujące unikalne warunki geo-klimatyczne na arktycznej wyspie Svalbard, nazwane Światowym Archiwum Arktycznym (Arctic World Archive) lub Biblioteką Końca Świata (End of the World Library), w celu przechowania najcenniejszych danych międzynarodowych instytucji i firm oraz światowego dziedzictwa kulturowego.
Contaminación marina, un enfoque desde el contexto latinoamericano
Authors: Puente-Padilla Gabriela , Quintana-Zambrano Germán Rolando , González-Bedoya Jonathan Paul
Published: December 2021

En la actualidad la contaminación es una problemática constante que ha ido tomando cada vez más fuerza con el paso de los años, una de las principales contaminaciones es la contaminación marina, a pesar, de intentos llevados a cabo por autoridades la contaminación marina no hace más que hacerse más evidente y perceptible con el paso de los días, en el caso de Latinoamérica muchos países han desarrollado estrategias para la concientización y el cuidado en contra de la contaminación marina que aunque si han tenido apoyo y utilidad no ha logrado acabar con la contaminación llegando incluso a producir más contaminación, por otra parte se han llevado a cabo estudios detectando contaminación pero que no han llegado a solucionar.

Palabras claves: contaminación marina, Latinoamérica, concientización, cuidado.
Programação Intuitiva: em Busca de Compreensões
Authors: Balbino Renata Oliveira , Kalinke Marco Aurélio , Zatti Evandro Alberto , Mattos Silvana Gogolla de , Loss Taniele , Motta Marcelo Souza
Published: December 2021

Este artigo tem como objetivo a busca por ampliar compreensões acerca da “programação intuitiva”, para propor a sua definição no contexto educacional. Nesse intuito, realizou-se um estudo teórico e reflexivo ancorado em uma revisão literária de autores que tratam da temática investigada. Essa busca partiu do conhecimento dos fundamentos da programação de computadores para, na sequência, tratar da programação no âmbito educacional. Percebeu-se que a definição do termo “programação intuitiva” não é consenso entre os profissionais da informática e educadores. São apresentados alguns softwares, os quais possibilitam o uso de recursos de programação nos processos de ensino e de aprendizagem. Com base nas ferramentas observadas e nas formas de sua utilização, pode-se, então, propor uma definição para “programação intuitiva” como sendo uma linguagem de programação que leve em consideração as características de similaridade, visualização e acessibilidade.
Research and complete the processing technology of Son La oxide copper ores for the Tay Bac Minerals Joint Stock Company
Authors: Tran Hien Thi , Pham Phong Duc ,   Mineral processing technology department, National Institute of Mining - Metallurgy science and technology, Hanoi, Vietnam
Published: December 2021

The copper ore processing plant of the Tay Bac Minerals Joint Stock Company has been designed and operated to produce metallic copper from copper sulphide ores and copper oxide ores in Son La province. Copper sulphide ores are processed to produce copper concentrates with content of more than 20% Cu for the next processing stage, while copper oxide ores, with average content of 1÷3% Cu and after grinding, are fed directly into hydrometallurgical processes to extract copper. However, this process requires large amount of chemicals. Therefore, the economic efficiency is not high. The National Institute of Mining - Metallurgy Science and Technology has researched and proposed a reasonable technology process for Son La copper oxide ores for solving difficulties and perfecting the processing technology at the plant that improves economic efficiency and minimizes environmental pollutions. This report presents results of the experimental production research project with the code CNKK.013.19, implemented by the Institute of Materials Science and sponsored by the Ministry of Industry and Trade.
Determination of reasonable working mode for main fan stations during pilot operation of fan station VO - 22/14AR in Lo Tri area, Thong Nhat coal mine
Authors: Dao Chi Van , Tran Ha Xuan , Le Dung Tien ,   Faculty of Mining, Hanoi University of Mining and Geology, Vietnam  Vietnam Mining Science and Technology Association, Vietnam
Published: December 2021

The article presents a review of the technical characteristics and an introduction to the appearance of fan station VO - 22/14AR when it is first put into operation in the Lo Tri area, Thong Nhat coal mine. When this new fan station comes into operation, it will affect the overall ventilation system of the mine. Therefore, it is necessary to check, calculate, evaluate and determine the reasonable working mode of two main fan stations 2K56 - No24 and VO - 22/14AR. The results show that for two fan stations 2K56 - No24 and VO - 22/14AR, the associated fans should be operated in impeller angles of 35 and 50 degrees, respectively. The impeller angles create an overall airflow Qbp of 236.8 m3/s and an air pressure Hbp of 390 mm H20 that fulfill the ventilation requirement of the mine.
Accuracy assessment of open - pit mine’s digital surface models generated using photos captured by Unmanned Aerial Vehicles in the post - processing kinematic mode
Authors: Nguyen Long Quoc ,   Faculty of Geomatics and Land Administration, Hanoi University of Mining and Geology, Vietnam
Published: December 2021

To evaluate the accuracy of the digital surface model (DSM) of an open-pit mine produced using photos captured by the unmanned aerial vehicle equipped with the post-processing dynamic satellite positioning technology (UAV/PPK), a DSM model of the Deo Nai open-pit coal mine was built in two cases: (1) only using images taken from UAV/PPK and (2) using images taken from UAV/PPK and ground control points (GCPs). These DSMs are evaluated in two ways: using checkpoints (CPs) and comparing the entire generated DSM with the DSM established by the electronic total station. The obtained results show that if using CPs, in case 1, the errors in horizontal and vertical dimension were 6.8 and 34.3 cm, respectively. When using two or more GCPs (case 2), the horizontal and vertical errors are at the centimetre-level (4.5 cm and 4.7 cm); if using the DSM comparison, the same accuracy as case 2 was also obtained.
Molecular and cellular mechanisms of cytotoxicity in animals
Authors:   Oles Honchar Dnipro National University, Dnipro, Nedzvetsky Viktor ,   Dnipro State Agrarian and Economic University, Masiuk Dmytro , Gasso Viktor , Yermolenko Serhii , Vasylenko Tetiana
Published: December 2021

The monograph is devoted to the study of the heavy metal influence on molecular and cellular processes in the animal organism. The state of the art of molecular pathway response to heavy metal toxicity is highlighted. Aspects of the impact of aluminium, cadmium, lead, mercury, and copper on biochemical features of cells are outlined. The relationship between the presence of heavy metal in an organism and disturbances in molecular and cellular progressions is revealed. The scientific monograph is proposed to ecotoxicologists, ecologists, experts interested in molecular biomarkers and bioindication. The book may be useful for students and researchers.
Inclusion of accounting for sustainability by professors of accounting programs
Authors: Bernal Montero Mónica Lizette , Barrera Arciniegas Helga Lucero
Published: December 2021

Sustainability is a concept that has been positioned at the corporate and business world level, which raises the question of how one of the main actors in this field: accountants, has been trained to understand and apply this concept in his work. This article aims to discuss the training that future accounting professionals receive, how curricula and content should be adapted and transformed to prepare accountants with a critical and human sense that allows them to analyze business activities not only from a single perspective economic but also environmental and social, which would give way to the teaching of accounting for sustainability.
Comparison of multicriteria decision-making methods in portfolio formation
Authors: Martinkutė-Kaulienė Raimonda , Skobaitė Radvinė , Stasytytė Viktorija , Maknickienė Nijolė
Published: December 2021

Investors apply various methods to select stocks and construct an investment portfolio. In the majority of methods, the principle of diversification is relevant. Also, sometimes investors‘ behaviour generate biases related to portfolio formation. Multicriteria decision-making methods can overcome such shortcomings of investors' decision-making; thus, they are widely used for portfolio selection. In the performed research, the portfolio is constructed from the stocks of the Spanish stock market. Stocks are selected based on financial indicators. SAW and TOPSIS multicriteria methods are used to range the suitable stocks. Portfolio weights are proportionate to the obtained multicriteria rank. Characteristics of the final selected stocks are presented graphically. Expected portfolio return and risk are also described when comparing two portfolios. The results of the research prove that multicriteria decision-making methods are suitable for portfolio formation. However, such portfolios should be kept for a long time in order to receive a return.
3 BOYUTLU BASKIDA KULLANILACAK MALZEMENİN MAKİNE ÖĞRENMESİ TEKNİKLERİ İLE TAHMİNLENMESİ
Authors: SEVLİ Onur
Published: December 2021

.3 boyutlu (3D) baskı Endüstri 4.0’ın önde gelen ve hızla gelişen teknolojilerinden biridir. Sanal ortamda 3 boyutlu olarak modellenen cisimler 3 boyutlu yazıcılar kullanılarak farklı teknik ve malzemelerle hızlı şekilde prototiplenebilmektedir. 3D baskıda üretilen ürünün amaca uygun, mümkün olduğunca düşük maliyetli ve ideal şekilde dayanıklı olması beklenmektedir. Üretilecek çıktının nitelikleri eldeki baskı teknolojisinin kısıtlarına bağlı olarak şekillenir. Ürünün niteliğini etkileyen diğer önemli bir unsur da baskı için kullanılacak olan malzemedir. Farklı teknik özellikler, dayanım ve kullanım alanları olan ABS ve PLA malzemelerden uygun olanın seçilmesi amaca uygun çıktıların elde edilmesi noktasında önem taşımaktadır. Bu çalışmada 3D yazıcılara ait çeşitli ayar parametreleri ve üretilecek ürünün niteliklerini ifade eden toplam 12 öznitelikten oluşan bir veri seti üzerinde basım için kullanılacak malzemenin tahminlenmesine yönelik makine öğrenmesi temelli sınıflandırmalar gerçekleştirilmiştir. Destek Vektör Makinesi (DVM), K-En yakın Komşu (KNN), Karar Ağacı (KA), Rastgele Orman (RO) ve Lojistik Regresyon (LR) olmak üzere beş ayrı yöntemle ve 5 kat çapraz doğrulama ile gerçekleştirilen sınıflandırma işlemlerinde en yüksek doğruluk %100 olarak LR algoritması ile elde edilmiştir.
RESOURCE SAVING IN THE EXTRACTION OF NON-FERROUS METALS
Authors:   Novocherkassk, South Russian State Polytech-nic University, Golik V.I.
Published: December 2021

The main directions of resource saving in the extraction of non-ferrous metals in Rus-sia are considered, the basis of which is the extraction of the useful component by leaching in underground blocks, piles and high-speed disintegrator mills. The current ideas about the problem are systematized and investigated, and a forecast of the use of resource-saving tech-nologies in the future is given.
PRACTICAL RECOMMENDATIONS FOR CARRYING OUT HORIZONTAL AND INCLINED WORKINGS ON ROCKS PRONE TO HEAVING
Authors:   National Research Technological University «MISIS», Melnik V.V. , Shcherbakov V.N.
Published: December 2021

The conducted studies have revealed two important, from the point of view of opera-tion, phenomena of the manifestation of rock pressure in the mine workings passed through the heaving rocks. The dependence of determining the magnitude of rock heaving in the bottomhole space is proposed. Practical mining technical recommendations for preventing rock heaving are made.
ANALYSIS OF DUST AND HAZARDOUS SUBSTANCES EMISSIONS DURING PRODUCTION OF CEMENT "HEIDELBERGCEMENT RUS" , POS. NOVOGUROVO, ALEXIN DISTRICT, TULA REGION
Authors:   Tula State University, Stas G.V. , Sarychev V.I. ,   Tula State University, Borodkina N.N. ,   Tula State University, Pronikov A.V. ,   Tula State University
Published: December 2021

Quantitative systematic analyzing emissions of dust and harmful substances along the entire technological line for the production of cement of LLC "HeidelbergCement Rus" settlement Novogurovo, Aleksinsky district, Tula region are studied.
Participatory Ideology
Authors: Beresford Peter
Published: December 2021

This book examines for the first time the exclusionary nature of prevailing political ideologies. Bringing together theory, practice and the relationship between participation, political ideology and social welfare, it offers a detailed critique of how the crucial move to more participatory approaches may be achieved.
Competențele cadrului didactic în afinitate cu standardele educaționale
Authors: Adăscăliță Viorica , Ciuntu Rita
Published: December 2021

The educational system is constantly changing and evolving. In order to enhance
the quality of education, the teacher is always involved in the development of his
skills within professional practice to meet the standards. Standards are general statements that specify the quality of education throughout the educational system. The standards are proposed to the teacher as an input fl ow in the realization of the educational process. National and international experts from over 20 institutions contributed to the validation of the standards in our country. Education is a mobile fi eld, and the main factor of change in education is the personality of the teacher. The general and special skills of the teacher play an important role in the successful realization of the educational process.
ADVANCED FEATURES OF NVIDIA KEPLER ARCHITECTURE AND PARALLEL COMPUTATION PLATFORM CUDA FOR DEVELOPING SCIENTIFIC COMPUTE-INTENSIVE APPLICATIONS
Authors: Dudnik V.A. , Kudryavtsev V.I. , Us S.A. , Shestakov M.V.
Published: December 2021

The paper describes additional features oﬀered by new Kepler architecture of NVIDIA graphic processors, and their usage for creating high performance programs in a wide range of scientiﬁc compute-intensive applications. Recommendations are given for their use at realization of sci-tech computation algorithms by means of graphic processors. New capabilities of the parallel computation platform CUDA are also described, in particular, regarding a set of program development tool extensions for the Fortran, C and C++ languages. The extended capabilities make it possible to minimize the time of application development and to increase the programming productivity.
AN INVESTIGATION OF CZECH STUDENTS' PERCEPTIONS TOWARDS UK HIGHER EDUCATION – BENEFITS AND POST-BREXIT ISSUE
Authors: Domesova Karolina , Hussain Shahzeb , Khaneja Suyash
Published: December 2021

This paper covers an insight on how EU students specifically ‘Czech students’ would behave after Brexit, i.e. how Brexit would affect their selection of the UK higher education. Further, this study also examines why Czech students would choose UK over other EU and English speaking countries. In particular, this study examines three objectives: (i) to examine why Czech students would choose the UK over other European countries, (ii) to examine what are the value-added features that UK higher education would provide to students from the Czech Republic, and (iii) to examine how Brexit would affect Czech students’ selection of the UK’s higher education. A qualitative study was conducted with students based in universities in North-East. The findings suggest that Czech students choose UK because of its language, global recognition, job prospects, work-based learning, innovative teaching methods, quality of teaching, less distance between UK and Czech Republic, culture, and international environment are some of the reasons to choose UK as destination. Further, they have suggested that coming UK was their and their families’ dream. They have also explained that after Brexit, UK would not be as attractive as the current time. They mentioned that limitations in students’ loans, financial help, internships, NHS facilities, increase in prices, racial abuses, and fees would be few of the reasons to stop them to choose UK for higher educations. Implications and limitations are discussed in the study.
 

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DIFFICULTÉS DU DÉMARCHE EXPÉRIMENTALE EN ÉDUCATION SCIENTIFIQUE / DIFFICULTIES OF THE EXPERIMENTAL PROCESS IN SCIENTIFIC EDUCATION
Authors: Nertivich Dimitri
Published: December 2021

Cet article présente une série des réflexions et un exemple détaillé sur les difficultés du démarche expérimental dans de l’éducation scientifique. Après une discussion sur les obstacles et les difficultés qui s'opposent à l'appropriation de la démarche de la méthode expérimentale, ce travail touche la question de la démarche expérimentale pour la formation des ombres. Deux exemples typiques de situations d'enseignement sont utilisés et les difficultés tant au niveau conceptuel que procédural sont mises en évidence.

 

This article presents a series of reflections and a detailed example of the difficulties of the experimental approach in scientific education. After a discussion on the obstacles and difficulties that stand in the way of appropriation of the experimental method approach, this work touches on the question of the experimental approach to the formation of shadows. Two typical examples of teaching situations are used and the difficulties at both the conceptual and procedural levels are highlighted.

 

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THE EFFECTIVENESS OF QUIZIZZ WHEN WORKING WITH DESCRIPTIVE ADJECTIVES
Authors: Hurtado Paula , Díaz Claudio
Published: December 2021

Deficient use of vocabulary in learners is common when they use English to express their ideas. The use of technology to motivate students learning is an ally for teachers when they want to innovate and develop new strategies. The aim of this action research study is to assess the effectiveness of using the Quizizz online platform to improve one participant’s listening skill to recognize descriptive adjectives. The participant was one English language learner from an A1 level in a semi private school from Concepción, Chile. During 5 sessions he used and played on the Quizizz platform, there he listened to words, simple phrases and complex sentences. He had to choose the correct picture that represented that the descriptive adjectives that he had heard. To identify and analyze the results of the Quizizz platform, it was used an observation checklist. Then, at the end of each session, a multiple choice task with similar questions to Quizizz was used. To identify the participant’s perception about the Quizizz platform it was used a Likert scale. The findings showed that the use of the platform didn’t contribute to the participant’s improvement of his listening skill related to descriptive adjectives. In addition, the participant perceived the Quizizz platform positively. For these reasons, the Quizizz platform is recommended to be used for educational purposes.

El uso deficiente del vocabulario en los estudiantes pequeños es común cuando usan inglés para expresar sus ideas. El uso de tecnología para motivar el aprendizaje de los estudiantes es un aliado para los docentes cuando quieren innovar y desarrollar nuevas estrategias. El objetivo de este estudio de investigación-acción es evaluar la efectividad del uso de la plataforma en línea Quizizz para mejorar la habilidad de escucha de un participante para reconocer adjetivos descriptivos. El participante fue solo un estudiante de inglés de nivel A1 de una escuela semi privada de la ciudad de Concepción, Chile. Durante 5 sesiones él utilizó y jugó en la plataforma Quizizz, allí escuchó palabras, frases, oraciones complejas y tuvo que elegir la imagen correcta que representaba el adjetivo descriptivo que había escuchado. Para conocer y analizar los resultados de la plataforma Quizizz se utilizó un checklist de observación, luego al final de cada sesión se utilizó una tarea de opción múltiple con preguntas similares a las del Quizizz. Para identificar la percepción del participante sobre la plataforma se utilizó una escala Likert. Los hallazgos mostraron que el uso de la plataforma no contribuyó a que el participante mejorara su habilidad de escuchar en relación a los adjetivos descriptivos. Además, el participante percibió positivamente la plataforma. Por estas razones, se recomienda utilizar Quizizz con fines educativos.

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GENDER OR HELPER? TEENS CAREER CHOICES BETWEEN GENDER AND ALTRUISM
Authors: Romani Savino , Giammattei Sara , Pediconi Maria Gabriella
Published: December 2021

This paper intends to explore the aspects related to the gender stereotypes, altruism and career choices among adolescents. In order to analyze the aspirations and career orientation of young generations we used a survey to measure gender stereotypes and a personality scale to measure altruism; a careers inquiry technique has been used to investigate their professional aspirations. Qualitative research allows us to define career profiles used by participants and to predict their interests in male and female professions affected by gender stereotypes. The results show that most altruistic young people tend to be less influenced by gender stereotypes in the evaluation of career choices. Moreover, altruists prefer more relational professions, thus confirming altruism as a favorable dimension for a pro-social working life. The implications of this article will serve as a resource for educational programs to promote altruism as a way of thinking and to prevent gender stereotypes.

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BÜYÜKŞEHİR BELEDİYELERİ VE SOSYAL MEDYA KULLANIM ETKİNLİĞİ: TRABZON BÜYÜKŞEHİR BELEDİYESİ’NİN TWİTTER KULLANIMINA İLİŞKİN BİR ANALİZ
Authors: KÜÇÜKŞEN Murat , FİRİDİN Emrah
Published: December 2021

Bilgi ve iletişim teknolojilerinin etkisiyle gelişen ve milyonları bulan kullanıcısıyla sosyal medya, yöneten-yönetilen ilişkisine yeni bir boyut kazandırmıştır. Sosyal ağlar vasıtasıyla insanlar bulunduğu yerin yönetimlerini takip etmekte ve eleştiri yapabilmektedir. Kurumlarda sosyal medyayı aktif olarak kullanmakta ve halkla ilişkilerini sosyal ağlar üzerinden yürütebilmektedir. Son yıllarda özellikle büyükşehir belediyeleri sosyal medya kullanımlarıyla öne çıkmaktadır. Bu kapsamda, sosyal medyanın halka ilişkiler açısından nasıl bir ortam yarattığı anlamak ve büyükşehir belediyelerinin sosyal medyayı kullanım amaç ve biçimlerini ortaya koymak çalışmanın temelini oluşturmaktadır. Çalışma, Trabzon Büyükşehir Belediyesi’nin Resmi Kurumsal Twitter hesabı üzerinden belediyelerin sosyal medya kullanımı etkinliğinin ölçülmesini amaçlamaktadır. Araştırmanın yöntemi nitel araştırma olmakla birlikte araştırma tekniği ise içerik analizidir. Araştırma sonucunda, büyükşehir belediyelerinin sosyal medyayı daha çok bilgilendirici yönü ağırlık basan tek yönlü iletişim aracı olarak kullandıkları, etkileşim ve diyalog odaklı çift yönlü iletişimi ise daha az tercih ettikleri sonucuna ulaşılmıştır. Ayrıca katılım odaklı paylaşımların sınırlılığı, sosyal medyanın demokratik karakterinin yeterince benimsenmediğini göstermektedir.
New data on minerals of the hidalgoite-philipsbornite series from the Guatomo mine near Tham Thalu, Yala Province (Thailand)
Authors: Števko Martin , Dolníček Zdeněk
Published: December 2021

The chemical composition of three samples of minerals of the hidalgoite-philipsbornite series from the central part of the Guatomo mine pit was studied in detail by EMPA-WDS. They form yellowish-green, light green to pale blue microcrystalline crusts or hollow pseudomorphs after prismatic hexagonal crystals of mimetite in fractures of strongly altered granite or quartz. All studied samples show relatively strong, irregular to oscillatory chemical zoning in BSE, caused by S versus As substitution on T-site. Most of the zones are corresponding to hidalgoite, with only minor, outer zones represented by S-rich philipsbornite. Besides of dominant contents of Pb, Al, As and S also minor amounts of K (up to 0.11 apfu), Na (up to 0.05 apfu), Cu (up to 0.22 apfu), Fe (up to 0.09 apfu) and P (up to 0.04 apfu) were detected in studied samples.
FEATURES OF HYGIENE OF BEES ON THE BACKGROUND OF OTHER BIOLOGICAL SIGNS
Authors:   National Scientific Centre «Institute of Beekeeping Named After P.I. Prokopovich», Hadiach, Poltava Oblast, Ukraine, Grechka A. N. , Senchuk T. Y. ,   National Scientific Centre «Institute of Beekeeping Named After P.I. Prokopovich», Hadiach, Poltava Oblast, Ukraine, Kulinich I. M. ,   National Scientific Centre «Institute of Beekeeping Named After P.I. Prokopovich», Hadiach, Poltava Oblast, Ukraine, Peliukhnia Ihor ,   National Scientific Centre «Institute of Beekeeping Named After P.I. Prokopovich», Hadiach, Poltava Oblast, Ukraine, Solovyova T. N. ,   National Scientific Centre «Institute of Beekeeping Named After P.I. Prokopovich», Hadiach, Poltava Oblast, Ukraine
Published: December 2021

Підібрані для селекції бджолині сім’ї володіють хорошим біологічним потенціалом рівня гігієнічної поведінки та господарських ознак і можуть успішно використовуватися для виведення маток, ротації їх у племінній частині пасіки та для створення трутневого бар’єра навколо пасіки-репродуктора. Відселекціоновані на поліпшену гігієнічну поведінку бджоли видаляли на 22% більше ушкодженого розплоду. Їх продуктивність у середньому на сім’ю переважала показники: по меду на 25,5%, по воску на 34%. Відмічено зменшення рівня інвазії кліщем Varroa destructor селективних бджіл на 11–20%. Ключові слова: українські бджоли, гігієнічна поведінка, біологічні ознаки, сила сімей, розплід, варроатоз, продуктивність.
Evaluating Non-STEM Students’ understanding of Evolution: Basis for designing Pedagogical Intervention
Authors: Florungco Jastine Kent , Caballes Dennis
Published: December 2021

Teaching human evolution, for it to yield fruitful results, should be initialized by understanding the perspective of the learners. This study was conducted to aid in achieving that objective, and also to provide ways for educators to come up with strategies that can be perceived and appreciated by learners, particularly those who are not inclined with science. The majority of the respondents are believers in the theory of human evolution. Most of the respondents expressed their belief that modern humans are successors of ape-like organisms. The majority of the same set of informants mentioned their need for clarity about the stages that humans underwent during the course of history, while almost all of those respondents stated that the utilization of various graphic materials to elucidate these evolutionary concepts. It was recommended that educators engage in learning methods that call the attention and those that can be easily understood by the students