bluuebunny/crossref_metadata_2025 huggingface dataset:
Best practice of using air-bubble curtains as part of complex fish protection structures
Authors: Шульгин В.Д. , Набоков С.С.
Published: November 2021

Приведены результаты исследований работы комплексных рыбозащитных сооружений с использованием воздушно-пузырьковых завес. Дано описание механизма работы комплексных рыбозащитных сооружений и принципа работы воздушно-пузырьковой завесы. На основе гидравлического расчета разработана методика проектирования и применения воздушно-пузырьковой завесы в составе комплексных рыбозащитных сооружений. Приведены результаты исследований по оценке функциональной эффективности построенных комплексных рыбозащитных сооружений. Комплексные рыбозащитные сооружения, имеющие в своем составе запани и воздушно-пузырьковые завесы и работающие в эрлифтном режиме, достаточно эффективно защищают молодь рыб. При правильно подобранных параметрах работы оборудования и выбранном створе размещения сооружений, с учетом гидравлических и технических особенностей водозабора, их эффективность гарантированно превышает нормативные значения.

The results of studying the operation of complex fish protection structures with the use of air-bubble curtains are presented. A description of the operating mechanism of complex fish protection structures and the principle of operation of the air-bubble curtain is given. On the basis of a hydraulic calculation, a method for designing and using an air-bubble curtain as part of complex fish protection structures has been developed. The results of estimating the functional efficiency of the built complex fish protection structures are presented. The complex fish protection structures that include debris deflectors and air-bubble curtains and operate in an air-lift mode, effectively protect fish fry. Provided the operating parameters of the equipment and the selected alignment of the structures with account of the hydraulic and technical features of the water intake have been correctly chosen, their efficiency is guaranteed to exceed the standard values.
Health Behaviour, Stress, and Police Trainees
Authors: Borbély Zsuzsanna
Published: November 2021

Occupational stress has adverse effects on the health of police officers which may have a negative impact on their work in the long run. The same may apply to police trainees who have been less studied in this respect so far. To investigate this issue, we performed a cross-sectional study in probationer police officers in their second school year in two grades at one of the Hungarian law enforcement schools. The study was performed in two waves in 2016 (N = 138) and 2018 (N = 94). We explored the connection between stress exposure as measured by the Occupational Stress Questionnaire for Law Enforcement Services, and health-related behaviours, particularly alcohol consumption, smoking, and physical activity as measured by a custom-made questionnaire. Variance analysis showed that police stress factors have a connection with health behaviours in the two grades: relations between smoking status, alcohol consumption, and binge drinking on the one hand and Individual, Personal factors on the other in 2016 and between the frequency of physical activity, alcohol consumption and binge drinking on the one hand and Workload factors on the other in 2018. The findings obtained in 2016 and 2018 are different in many respects. Overall, the relationship between stress exposure and health-related behaviours was more obvious in 2018 than in 2016. Our study revealed important connections between stress exposure and health-related behaviours in police trainees, but the differences observed in the two waves indicate the complexity of the relationship and require further – preferably longitudinal – studies on the issue.
TFW: Annotated Thermal Faces in the Wild Dataset
Authors: Kuzdeuov Askat , Aubakirova Dana , Koishigarina Darina , Varol Hüseyin Atakan
Published: November 2021

Face detection and subsequent localization of facial landmarks are the primary steps in many face applications. Numerous algorithms and benchmark datasets have been introduced to develop robust models for the visible domain. However, varying conditions of illumination still pose challenging problems. In this regard, thermal cameras are employed to address this problem, because they operate on longer wavelengths. However, thermal face and facial landmark detection in the wild is an open research problem because most of the existing thermal datasets were collected in controlled environments. In addition, many of them were not annotated with face bounding boxes and facial landmarks. In this work, we present a thermal face dataset with manually labeled bounding boxes and facial landmarks to address these problems. The dataset contains 9,982 images of 147 subjects collected under controlled and uncontrolled conditions. As a baseline, we trained the YOLOv5 object detection model and its adaptation for face detection, YOLO5Face, on our dataset. In addition to our test set, we evaluated the models on the external RWTH-Aachen thermal face dataset to show the efficacy of our dataset. We have made the dataset, source code, and pre-trained models publicly available at https://github.com/IS2AI/TFW to bolster research in thermal face analysis.
Acque e colture irrigue in Terra di Lavoro tra XVII e XVIII secolo. Una riflessione sul paesaggio dell’acqua tra economia e tutela
Authors: De Felice Pierluigi , Spagnoli Luisa
Published: November 2021

In the archive of the Abbey of Montecassino there is a judicial affair between the monks of the Abbey and the Duke of Mignano stored. The quaestio of the dispute is for the sowing of rice by the Duke who, despite several orders of prohibitions (1661, 1665), persists in cultivating it, causing, according to the Benedictine monks, “great damage to the universities of St. Vittore, St. Pietro Infine, Mignano” because “it affects the wholesomeness of these lands”.  An unpublished large-scaled cartography is attached to this judicial dispute, whose graphic signs clarify and define the places of the diatribe also providing further information: we are in the Terra di Lavoro bathed by the river Peccia which is used and partly diverted to irrigate the Duke’s rice.  The case study offers a lot of food for thought starting from the problematic relationship between the values of the environment and water resources, defended by the Benedictine monks, and the economic and productive needs of a local aristocracy with an entrepreneurial vocation. This contrast connects, recalling and confirming it, to the wider one that developed during the eighteenth and nineteenth centuries linked to the spread of rice where doctors, agronomists, politicians have widely debated the problems raised by the spread of rice fields in the Peninsula.
La prego di voler gradire una mia Carta dei prodotti alimentari…
Authors: Guadagno Eleonora , Manzi Elio
Published: November 2021

The Authors examine some elements of the work of the great cartographer Benedetto Marzolla (1801-1858) who, together with Carlo Afàn de Rivera, represents the best among the intellectuals and technicians that the Kingdom of Two Sicilies yielded before the Italian unification. This contrasts with the commonplace outlined be the Savoyard-Risorgimental propaganda which describes Naples and the Kingdom as a country inhabited by incapables, depraved and lazy persons. The Authors resume the theme of the Map of Nourishing Products, an excellent work not only because it describes the terrestrial and marine nourishing productions, but also for the connection with many agrarian landscapes and relative trades. Moreover, the Authors present the Map of Excise Duty (1830) another work of Marzolla together with Valentino, never known or considered by cartography scholars. This map does not seem to be cited inside the catalogues or inventories about Marzolla’s production, compiled by Valerio or by others authors in the frame of the analysis of the Royal Topographical Office of Naples (ROT), especially along the second half of the XIX century. The “modernity” of Marzolla manifests not only in consideration of anti-historical comparisons with actual excellent or “organic” food products, but for the analogies with the original proposals of Brunet, Ferras and other academics of the Maison de la Géographie. Unfortunately, Italian geographers have devoted little attention to this field of study.
Heteronomy of architecture
Authors: Maria Pilar Vettori
Published: November 2021

I’m not calling today about the competition we are holding for Reinventing Cities here in Lambrate - I am calling to ask you if you would like it if we had a dialogue together on the Heteronomy of Architecture.

Benedetta Tagliabue: Hello Matteo! Don’t even talk about it, everything is so sad. You know just how important it is for me to travel and meet people all the time... in person.

Dialogue? Absolutely! But... what is this “heteronomy”? You don’t mean it’s something that excludes someone? You know I don’t like it...

 

M.R. Come on, we’ve known each other for years! Look, it’s exactly the opposite. A very interesting concept which Giancarlo De Carlo summed up well in a sentence I am going to read to you. «As you can tell as you listen, one cannot help but think of your way of knowing, investigating and reading the places and cities in which you design. It is also impossible not to think of how you live together with others, and how this has always been the way you live architecture on a daily basis, and how you know how to transmit it and build it together with all the people you meet: collaborators, citizens, users, clients, politicians, artists, producers of materials, craftsmen, friends, etc. [...]».

B.T. Oh well... I was actually joking a bit, you know it amuses me. I remembered this idea of Giancarlo’s from when I was studying at the Faculty of Architecture in Venice, and I was struck by his strength and energy in knowing how to interpret it at its best and translate it into splendid practice on many occasions.

Thank you also for your kind words, it was so kind of you to have thought of me. It certainly is an interesting theme to delve into in a monographic issue of a magazine, and I would like to congratulate those who thought of it.

So... Yes, I like it: let’s dialogue!

You already know that we’ll have to talk again a few times.

M.R. Of course I know... it’s always a great pleasure!
Improving the Outcomes of Modified Manual Small Incision Cataract Surgery Using Clinical Audit
Authors: Ifraheem Khan Muhammad , Arif Saba Ali , Raja Muhammad , Ijaz Sheikh , Saeed Khan Muhammad
Published: November 2021

Purpose:  To use clinical audit in improving the outcomes of manual small incision cataract surgery technique

Study Design:  Clinical audit.

Place and Duration:  Layton Rehmatullah Benevolent Trust Eye hospital Karachi, from September 2019 to December 2019.

Methods:  Two hundred patients who had undergone Manual Small Incision Cataract surgery were selected. Cases with traumatic cataract, weak zonules, pseudoexfoliation, and more than 1 diopter difference in keratometric readings, corneal and retinal pathologies were excluded. Surgical complications and visual outcomes were recorded on the 7th postoperative day. Refractive data was recorded from subjective refraction. Data was analyzed by University Hospital Bristol formula. Standards were set using international literature. Deficiencies were noted and technique was modified to improve the outcome. The audit was repeated after 2 months to see whether modifications had improved the outcome.

Results:  In the first audit, posterior capsular rupture rate was 1%, corrected visual acuity of 6/12 or better was achieved in 85.36% and surgically induced cylinder of less than 2 DC was achieved in 75.60% of the patients. In the second audit all standards were achieved. Posterior capsular rupture did not occur. Corrected visual acuity of 6/12 or better was achieved in 90.50% and induced cylinder of less than 2 DC was achieved in 87.05% of the patients.

Conclusion:  Clinical audit of the surgical procedures is a good technique in improving the outcomes of manual small incision cataract surgery.

Key Words:  Cataract extraction, clinical audit, posterior capsular rupture, astigmatism, visual acuity.
Effect of Topical Versus Sub-conjunctival Anaesthesia during Administration of Intravitreal Bevacizumab Injection
Authors: Rizwan Amna , Zafar Rabeeah , Asghar Asfandyar , Obaid Naila , Naeem B A
Published: November 2021

Purpose:  To compare the anesthetic effect of topical proparacaine hydrochloride 0.5% with sub-conjunctival lidocaine 2% for intravitreal injection of Bevacizumab.

Study Design:  Quasi experimental study.

Place and Duration of Study:  Department of Ophthalmology Fauji Foundation Hospital, Rawalpindi, from July 2017 to January 2018.

Methods:  Sixty 60 patients who needed intravitreal Bevacizumab were included in the study after approval from the ethical review board. Exclusion criteria were patients with conditions that could affect pain sensation, acute ocular inflammation, history of intravitreal injection, using systemic analgesic/sedatives, uncooperative patients and unable to understand the pain scale. Written informed consent was taken. Name, age, gender, diagnosis, previous intravitreal injection, hospital registration number, address and contact numbers were noted. Patients were briefed about the visual analogue scale. Patients were divided into two groups. Group A received proparacaine drops and group B was given subconjunctival lidocaine injections before intravitreal bevacizumab.

Results:  The mean age of patients in this study was 60.38 ± 10.55 years. There were 03 (5.0%) males and 57 (95.0%) females. Majority of the patients (30%) presented with choroidal neovascularization followed by diabetic maculopathy, vitreous hemorrhage, central retinal vein occlusion and proliferative diabetic retinopathy. Mean pain score among both the groups was 3.67 ± 1.97 (topical group) and 1.70 ± 1.51 (sub-conjunctival group) respectively which was statistically significant (p-value 0.000). Among age, diabetes, duration of diabetes and hypertension, only hypertension had moderate correlation with the pain score (correlation coefficient = 0.316, p values = 0.017).

Conclusion:  Sub-conjunctival anaesthesia results in less pain during intravitreal drug administration as compared to the topical anaesthesia.

Key Words:  Intravitreal injections, Bevacizumab, Intravitreal Anti-VEGF, Anesthesia.
Leksykalna analiza zrozumiałości tekstów medycznych na podstawie opisów badań obrazowych i wypisów ze szpitala
Authors: Bączkowska Anna , Kościałkowska-Okońska Ewa
Published: November 2021

This article presents a lexical analysis of two types of medical texts written in Polish: hospital discharge summaries and image reports. The aim of the analysis is to assess the readability of the medical texts under investigation and its importance in the process of translation. It was assumed that the language of discharge summaries should be relatively comprehensible for a layman (patient), so that he or she could understand the description of the diagnosis and follow the instructions provided by doctors regarding post-hospital measures (such as adherence to medication regime and recommended further medical examinations). Image reports are written by experts for experts, so it can be expected that the language used in image reports is highly specialized and barely comprehensible for a patient. The pilot study has demonstrated that the discharge summaries, contrary to our assumptions, turned out to be slightly less readable for an average reader (patient) than the image reports.
КЛАСТЕРНЫЙ ПОДХОД В РАЗВИТИИ РЕГИОНА
Authors: Ялмаев Р.А.
Published: November 2021

В статье проведен теоретический анализ кластерной концепции как значимого инструмента развития экономики на региональном уровне. Проанализированы изложенные в отечественной и зарубежной литературе по региональной экономике и экономической географии подходы к определению понятия «кластер», разобраны основные характеристики кластеров. Определенны преимущества и потенциальные барьеры кластерного развития регионов. Автор подчеркивает необходимость активной роли государственных органов власти при разработке и реализации кластерного подхода в региональном развитии, что обеспечит эффективность стратегии развития региона. Отмечено, что встраивание кластерной стратегии в общую стратегию регионального развития является необходимым условием ее эффективности и повышения конкурентоспособности региона в целом.
РОЛЬ И ЗНАЧЕНИЕ УЧЕТНОЙ ПОЛИТИКИ В ОРГАНИЗАЦИИ
Authors: Исраилова З.Р. , Апкарова М.С. , Шмелева Т.М.
Published: November 2021

Компания соблюдает определенные правила и нормы в каждом своем решении. В основе этих решений лежит учетная политика. Очень важна конкретная политика. Учетная политика компании отображает ее управленческие записи независимо от того, является ли она прогрессивной или наоборот. Как документ, включающий в себя всю совокупность приемов и способов ведения бухгалтерского учета, учетная политика была и остается крайне важной для предприятий, а ее обоснование и совершенствование – актуальным.
ТРАНСФОРМАЦИЯ УПРАВЛЕНЧЕСКОГО УЧЕТА В ЦИФРОВОЙ ЭКОНОМИКЕ
Authors: Исраилова З.Р. , Магомадова Ф.Ш. , Шмелева Т.М.
Published: November 2021

Существует все больше свидетельств того, что внедрение цифровых технологий предприятиями влияет не только на их функционирование в экономическом плане, но и мобилизует более широкие социальные, институциональные и организационные эффекты. На техническом уровне оцифровка непосредственно влияет на организационные процессы. Представления о его потенциале также определяют управленческие устремления и стремление к повышению эффективности организации. Оцифровка неизбежно влияет на форму, содержание и происхождение внутренней бухгалтерской информации с сопутствующими последствиями для поведения и действий лиц, принимающих решения. Начинают появляться знания о влиянии цифровых технологий на процессы мышления и практики управленческого учета.
РАЗВИТИЕ И ОЦЕНКА ЦИФРОВЫХ КОМПЕТЕНЦИЙ СОТРУДНИКОВ ОРГАНОВ ГОСУДАРСТВЕННОГО ФИНАНСОВОГО КОНТРОЛЯ
Authors: Чаусова Я.С.
Published: November 2021

Определены особенности развития и оценки цифровых компетенций сотрудников органов государственного финансового контроля. Разработан Профиль должности директора Департамента цифрового развития и информационных технологий.
РЕАЛИЗАЦИЯ АНТИКОРРУПЦИОННОЙ ПОЛИТИКИ РОССИЙСКОЙ ФЕДЕРАЦИИ НА СОВРЕМЕННОМ ЭТАПЕ
Authors: Никаева Р.М. , Шардан С.К. , Тураева Л.Р.
Published: November 2021

В исследовании рассматривается антикоррупционная политика России на современном этапе. Статья посвящена анализу правового регулирования служебной деятельности служащих, их роли в обеспечении антикоррупционно-финансового благополучия государства как неотъемлемого элемента его правоохранительной функции. В настоящей статье анализируются проблемы, с которыми сталкиваются государство и гражданское общество на пути борьбы с коррупцией, выявляются причины этих проблем, предлагаются пути их решения.
КРАУДФАНДИНГ КАК ДЕЙСТВЕННЫЙ МЕХАНИЗМ ФИНАНСОВОГО ОБЕСПЕЧЕНИЯ ВОСПРОИЗВОДСТВЕННОГО ПРОЦЕССА В СЕЛЬСКОМ ХОЗЯЙСТВЕ
Authors: Эскиев М.А.
Published: November 2021

Одной из наиболее приоритетных целей государства в современных экономических реалиях является развитие сельского хозяйства и как следствие – создание условий устойчивого развития данной отрасли, обеспечение населения страны высококачественной сельхозпродукцией, обеспечение продовольственной безопасности страны, что приобретает особую актуальность в условиях экономических санкций и эмбарго на ввоз определенных продуктов сельского хозяйства.
Simulasi dalam Menganalisis Tingkat Pendapatan Penjualan Handphone dengan Menggunakan Metode Monte Carlo
Authors: Fikri Algifari  , Sumijan S
Published: November 2021

Pemenuhan kebutuhan konsumen merupakan tujuan dari setiap usaha. Modal usaha yang dimiliki akan mempengaruhi kesiapan dalam melayani permintaan konsumen. Penelitian ini memiliki tujuan untuk memperkirakan pendapatan penjualan handphone di Atha Cell. Sehingga, memudahkan pihak pimpinan perusahaan untuk memutuskan strategi bisnis dengan cepat dan optimal. Data yang digunakan dalam penelitian ini yaitu data pendapatan 2018 sampai 2020 yang diolah dengan menggunakan metode monte carlo. Perkiraan pendapatan akan dilakukan setiap tahun. Hasil pengujian yang telah dilakukan menggunakan simulasi Monte Carlo dengan tingkat akurasi 97,18% untuk prediksi tahun 2019 dengan pendapatan Rp.77.150.000,-, 94,62% untuk prediksi tahun 2020 dengan pendapatan Rp.83.260.000,-, 95,76% untuk prediksi tahun 2021 dengan pendapatan Rp.90.170.000,-. Dengan tingkat akurasi yang tinggi, penerapan metode monte carlo dianggap dapat melakukan perkiraan pendapatan tiap tahunnya.
Species of the genus Fusarium and Fusarium toxins in the grain of winter and spring wheat in Poland
Authors: Góral Tomasz , Ochodzki Piotr , Nielsen Linda Kærgaard , Walentyn-Góral Dorota
Published: November 2021

The aim of the study was to determine the presence of Fusarium species and mycotoxins in wheat grain from harvest in 2009 and 2010 in Poland. Samples from different locations were analyzed for the content of DNA of Fusarium species and mycotoxins. In 2009, DNA of F. graminearum and F. poae was present in all samples, F. culmorum in 82% of samples, and F. avenaceum in 55% of samples. In 2010, the highest content of DNA was found for F. graminearum followed by F. avenaceum, F. poae and F. langsethiae. The amount of F. culmorum DNA was very low. The most frequently occurring species were F. poae and F. graminearum, however, the amount of F. poae DNA was lower. In 2009, deoxynivalenol was detected in all samples. In 2010, the average content of deoxynivalenol was lower than in 2009. Nivalenol was detected at very low concentration in both years. Significant correlations between content of F. graminearum DNA and deoxynivalenol concentration in the grain and between content of F. poae DNA and nivalenol concentration in the grain in 2009 were found.
Activities and characteristics of instructional school leadership from the perspective of elementary school principals
Authors: Kovač Vesna , Pažur Monika
Published: November 2021

This paper shows results of an empirical study on characteristics of instructional school leadership conducted on the sample of 30 Croatian elementary school principals. Two research questions were asked: 1. How elementary school principals describe and comment instructional school leadership activities that they conduct in their schools, observing them from their own role’s perspective and instructional goals that they want to achieve and 2. How elementary school principals describe and experience circumstances that have an impact on initiation and implementation of previously described instructional school leadership activities. In regards to set questions, elementary qualitative interpretative research approach was used. Data was gathered using written interview, whereas the results of thematic content analysis revealed two key thematic categories: the list of most conducted instructional school leadership activities and key interactions of principals during the implementation of instructional school leadership. Variabilities in the implementation of instructional school leadership in several aspects were observed, out of which key instructional school leadership’s contents and outcomes focused on the strengthening of students’ and teachers’ capacities are singled out as well as roles and principals’ relationship in interaction with various subjects.
From management to student
Authors: Ivković Hodžić Željka , Matešić Marina
Published: November 2021

The paper presents the results of research on human rights conducted during 2018 and 2019 at faculties of teacher education and studies of psychology, pedagogy, and social work in Croatia. The aim of the research was to examine the representation of human rights learning outcomes in these studies, with a special emphasis on children’s rights, children’s participation, and the concept of the child as an active citizen, common in the discourse of the contemporary childhood paradigm. The research was conducted by using the mixed methods approach. Triangulation with three different sources of respondents was applied: a survey with university teachers, interviews with representatives of study programs, and a survey with students, where all types of data in the analysis were treated as equal. Different types of data showed unequal perspectives between institutional actors, but also similarities of the university population with other levels of the education system.
L’innovation ouverte est-elle adaptée aux villes moyennes ? Le cas de 14 innovations ouvertes de petites et moyennes entreprises (PME) agroalimentaires du sud-ouest de la France
Authors: Labrouche Geoffroy , Levy Rachel
Published: November 2021

Cet article s’intéresse aux pratiques d’innovation ouverte des PME localisées dans des villes moyennes. Il interroge particulièrement le caractère intentionnel de ces pratiques ainsi que les formes partenariales mobilisées dans ces innovations à travers une étude de cas de 14 innovations ouvertes développées par 10 PME agroalimentaires localisées dans des villes moyennes de la région Occitanie. Les caractéristiques des PME et le fait d’être implanté dans une ville moyenne influencent les processus d’innovation. Ces innovations, de produits et de procédés, sont souvent incrémentales et réalisées dans le but de répondre à la demande. Le rôle de l’entrepreneur semble également essentiel dans l’émergence de ces processus. Notre analyse montre que ces PME cherchent à accéder à une variété connexe en collaborant notamment avec la recherche publique. Elle met évidence le rôle essentiel des proximités sociale et géographique temporaires dans l’accès aux ressources externes. Codes JEL : O31, R11
On $ L^1 $ estimates of solutions of compressible viscoelastic system
Authors: Ishigaki Yusuke
Published: November 2021

We consider the large time behavior of solutions of compressible viscoelastic system around a motionless state in a three-dimensional whole space. We show that if the initial data belongs to \begin{document}$ W^{2,1} $\end{document}, and is sufficiently small in \begin{document}$ H^4\cap L^1 $\end{document}, the solutions grow in time at the same rate as \begin{document}$ t^{\frac{1}{2}} $\end{document} in \begin{document}$ L^1 $\end{document} due to diffusion wave phenomena of the system caused by interaction between sound wave, viscous diffusion and elastic wave.
Efficient Facial Expression Recognition Using Deep Learning Techniques
Authors: S. Seema , B. J. Sowmya , P. Chandrika , D. Kumutha , Krishna Nikitha
Published: November 2021

Facial expression recognition (FER) is an important topic in the field of computer vision and artificial intelligence due to its potential in academic and business. The authors implement deep-learning-based FER approaches that use deep networks to allow end-to-end learning. It focuses on developing a cutting-edge hybrid deep-learning approach that combines a convolutional neural network (CNN) for the prediction and a convolutional neural network (CNN) for the classification. This chapter proposes a new methodology to analyze and implement a model to predict facial expression from a sequence of images. Considering the linguistic and psychological contemplations, an intermediary symbolic illustration is developed. Using a large set of image sequences recognition of six facial expressions is demonstrated. This analysis can fill in as a manual to novices in the field of FER, giving essential information and an overall comprehension of the most recent best in class contemplates, just as to experienced analysts searching for beneficial bearings for future work.
Local convergence of random planar graphs
Authors: Stufler Benedikt
Published: November 2021

The present work describes the asymptotic local shape of a graph drawn uniformly at random from all connected simple planar graphs with

n

labelled vertices. We establish a novel uniform infinite planar graph (UIPG) as quenched limit in the local topology as

n\to\infty

. We also establish such limits for random

2

-connected planar graphs and maps as their number of edges tends to infinity. Our approach encompasses a new probabilistic view on the Tutte decomposition. This allows us to follow the path along the decomposition of connectivity from planar maps to planar graphs in a uniform way, basing each step on condensation phenomena for random walks under subexponentiality and Gibbs partitions. Using large deviation results, we recover the asymptotic formula by Giménez and Noy (2009) for the number of planar graphs.
Fish farmers’ perceived environmental effects on dam operation and coping strategies used in Ikere George Dam of Iseyin, Oyo State
Authors: Abegunrin O.O. , Tunde-Francis A.A. , Jatto K.A. , Oyewole O.O. , Ogunwale O.G. , Adedipe J.O.
Published: November 2021

The study examined the fish farmers‟ perceived environmental effects of dam operation and coping strategies among fish farmers in Ikere George dam, Iseyin Oyo state. Multi stage sampling technique was used to select 102 respondents in the study area. Data were collected through the use of interview schedule and were analysed using descriptive statistics such as percentage and frequency, while chi-square and PPMC were used to analyse hypotheses at p < 0.05. The result revealed that majority (54%) of the respondents below 40 years, with males predominantly higher than females. Also, 71.6% were married and 58.8% had educational attainment below secondary school. Challenges identified were disruption of movement of aquatic animals (137), blockage of migrations of aquatic species (135) and problem of overcrowding in the community (129) were prominent perceived effects of dam operation. The result further showed that migration (99) and planting of trees (146) were the most commonly used coping strategies. Chi-square showed that there was significant relationship between socio-economic characteristics of the respondents and perceived effects of dam operation except religion which was not significant (p>0.05). PPMC analysis revealed that there was significant relationship between coping strategies used (r=0.687, p=0.000). It is therefore recommended that proper training and adequate facilities should be given to fish farmers to ensure sustainability of the dam.
MiR-486 protects against acute myocardial infarction via regulation of PTEN
Authors: Han Qinfeng , Xu Zhong , Zhang Xiaolei , Yang Kun , Sun Zhifei , Sun Weidong , Liu Wanbo
Published: November 2021

Purpose: To investigate the effect of miR-486 on rats with acute myocardial infarction (AMI), and its mechanism of action.Methods: A rat model of AMI was established. They were randomly divided into 4 groups, namely, sham, model, agomiR-486 and antagomiR-486 groups, respectively. Rats in these different groups were treated with agomiR-21 (5 μL, 40 nmol/mL), antagomiR-21 (5 μL, 40 nmol/mL) or agomiR-NC (5 μL, 40 nmol/mL), respectively. Then, key miRNAs were sorted out using gene-chip assay and verified by quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay. Luciferase reporter gene assay was conducted to determine the interaction between miR-486 and gene of PTEN. After intraperitoneal injection of agomiR-486 and antagomiR-486, hemodynamics was measured to determine the effect of miR-486 on myocardial function of the rats. The effect of miR-486 expression level on the expression of myocardial enzymes in serum, the morphology of myocardial tissues, and the apoptosis of myocardial tissues in rats, were investigated. Additionally, the effect of miR-486 expression level on PTEN/AKT signaling pathway in the rats was determined by Western blotting.Results: The results of gene-chip and qRT-PCR assays revealed that there were 8 differentially expressed genes in rat myocardial tissues in the model group when compared with the sham group. MiR-486 improved the cardiac function of rats and the morphology of myocardial tissues, but reduced AMI-induced apoptosis of myocardial cells and the expression of myocardial enzymes (markers of myocardial injury) in a dose-dependent manner (p < 0.05). The results of luciferase reporter gene assay showed that PTEN was a direct target of miR-486. In rat models of AMI, a raised expression of miR-486 remarkably suppressed the protein expression level of PTEN and up-regulated that of p-AKT/AKT (p < 0.05).Conclusion: MiR-486 protects against AMI in rats probably by targeting PTEN and activating the AKT signaling pathway. The results of the current study may provide new insights for the treatment of AMI.
Metformin promotes apoptosis of A549 cells via regulation of p-AMPK protein expression, bax/bcl-2 ratio and ROS levels
Authors: Yu Ziying , Liu Fengtao , Zhang Xiaoli
Published: November 2021

Purpose: To investigate the influence of metformin on apoptosis of pulmonary carcinoma cells (A549), and the associated mode of action.Methods: Pulmonary carcinoma cells in logarithmic growth phase were treated with graded concentrations of metformin, and the anti-proliferative and apoptotic effects of the drug were measured using MTT assay and flow cytometry, respectively. The levels of reactive oxygen species (ROS) in A549 cell suspension were determined with 2, 7- dihydrodichlorofluorescein diacetate (DCFH-DA) assay. The expression levels of phosphorylated AMP-activated protein kinase (p-AMPK), mammalian target of rapamycin (mTOR), and bax/bcl-2 ratio were measured using Western blotting and real-time fluorescence quantitative polymerase chain reaction (qRT-PCR).Results: Metformin significantly promoted A549 cell apoptosis, but suppressed its proliferative potential in a dose- and time-based fashion. The levels of ROS, superoxide anion and MDA in A549 cells were significantly and dose-dependently increased by metformin (p < 0.05). Moreover, metformin markedly upregulated the mRNA and protein expressions of p-AMPK as well as bax/bcl-2 ratio, but had no impact on the expression level of mTOR (p < 0.05).Conclusion: Metformin promotes apoptosis in A549 cells via regulation of p-AMPK protein expression, bax/bcl-2 ratio, and ROS levels, and hence may play a role in lung cancer therapy.
Relationships between macroseismic intensity and peak ground acceleration and velocity for the Vrancea (Romania) subcrustal earthquakes
Authors: Iren-Adelina Moldovan  , Angela Petruta Constantin  , Raluca Partheniu  , Bogdan Grecu  , Constantin Ionescu
Published: November 2021

The goal of this paper is to develop a new empirical relationship between observed macroseismic intensity and strong ground motion parameters such as peak ground acceleration (PGA) and velocity (PGV) for the Vrancea subcrustal earthquakes. The recent subcrustal earthquakes provide valuable data to examine these relationships for Vrancea seismogenic region. This region is one of the most active seismic zones in Europe and it is well-known for the strong subcrustal earthquakes. We examine the correlation between the strong ground-motion records and the observed intensities for major and moderate earthquakes with Mw ≥ 5.4 and epicentral intensity in the range VI to IX MSK degrees that occurred in Vrancea zone in the period 1977-2009. The empirical relationships between maximum intensity and ground parameters obtained and published by various authors have shown that these parameters do not always show a one-to-one correspondence, and the errors associated with the intensity estimation from PGA/PGV are sometimes +/-2 MSK degree. In the present study, the relation between macroseismic intensity and PGA/PGV will be given both as a mathematical equation, but also as corresponding ground motion intervals. Because of the intensity data spreading and errors related to mathematical approximations, it is necessary to systematically monitor not only the acceleration and velocity but also all the other ground motion parameters. The mathematical relation between these parameters might be used for the rapid assessment of ground shaking severity and potential damages in the areas affected by the Vrancea earthquakes.
Integrated in Clothes Graphene Antenna with Low SAR for Wearable Body-Centric Communications
Authors: Kapetanakis T. N. , Nikolopoulos C. D. , Petridis C. , Vardiambasis I. O.
Published: November 2021

The design and fabrication of graphene based textile patch antennas, intended for use in the 2.45GHz ISM band, are presented. The antennas have simple geometries with rectangular, triangular, or circular shape and substrate materials made of four different fabrics suitable for wearable applications. Conductive graphene sheet is used for the active element patches of the twelve different proposed prototypes. The effects of the antenna geometry, the substrate selection and the graphene-textile fabrication process on the prototypes’ performance are studied. Several prototypes exhibit desirable characteristics, such as high gain, acceptable radiation pattern, low Specific Absorption Rate (SAR), relatively wide bandwidth, and coverage of the ISM band even under different bending conditions.
O ENSINO DA HISTÓRIA E DA GEOGRAFIA:
Authors: Kuhn Martin , Toso Cláudia Eliane Ilgenfritz , Callai Helena Copetti
Published: November 2021

O ensino dos estudos sociais nos anos iniciais do ensino fundamental é a temática deste artigo. Por que ensinamos estudos sociais, história e geografia, nos anos iniciais da educação básica da forma como ensinamos? Que fundamentos psicológicos e pedagógicos dão lastro à tradição curricular de ensino dos estudos sociais (história e geografia) dispostos em círculos concêntricos? O objetivo é fustigar a tradição consolidada em torno da forma como ensinamos os conhecimentos dos estudos sociais nos anos iniciais do ensino fundamental da educação básica. Apesar da reflexão se originar de constatações do mundo prático, trata-se de um ensaio teórico. A linguagem é o horizonte de onde abordamos o objeto. Trata-se de dizer e interpretar o mundo e as coisas, dialogando com as diferentes tradições epistemológicas, contudo demarcando um olhar crítico e reflexivo sobre a problemática. Após uma breve apresentação das questões epistemológicas implicadas nos círculos concêntricos, a reflexão que segue se estrutura em dois movimentos: o primeiro discute a concepção naturalista de desenvolvimento psicológico humano da modernidade a partir do pensamento de Comenius e o segundo reflete sobre as implicações pedagógicas dessa concepção de desenvolvimento para a educação.

Palavras-chave

Estudos sociais, Círculos concêntricos, Fundamentos psicológicos e pedagógicos.

 

TEACHING HISTORY AND GEOGRAPHY: psychological and pedagogical assumptions of concentric circles

Abstract

The teaching of social studies in the initial years of elementary education is the theme of this article. Why do we choose certain ways of teaching social studies, history and geography in the early years of basic education?  What psychological and pedagogical foundations give weight to the curricular tradition of teaching social studies (history and geography) arranged in concentric circles? The aim of this essay is to question the consolidated tradition concerning the way we teach social studies in the initial years of elementary education. Although this discussion comes from the findings of the practical world, it is a theoretical reflection. The language is the horizon from which we approach the object. It is about telling and interpreting the world and things, dialoguing with different epistemological traditions, however demarcating a critical and reflective view on the problem. After a brief presentation of the epistemological issues involved in the concentric circles, the reflection that follows is structured in two movements: the first one discusses the naturalistic conception of human psychological development of modernity, according to Comenius’ ideas; and the second one reflects on the pedagogical implications of such conception for educational development.

Keywords

Social studies, Concentric circles, Psychological and pedagogical foundations.
RESONANT SPREAD WAVE FUNCTION IN PARABOLIC POTENTIAL
Authors: Mazmanishvili А.S.
Published: November 2021

In this paper, we consider the parabolic potential, which as a whole is subject to dipole or quadrupole action (parametric resonance), which periodically changes with time, and the dynamics of the wave function of a particle. Based on the solutions found for the nonstationary Schrödinger equation, algorithms for calculating the dynamics of the wave function are constructed. The evolution of the wave function of a particle is analyzed. Asymptotic solutions of the equation of motion are given, using which the main characteristics of the wave packet are obtained. For selected types of potential perturbations, examples of the evolution of the wave function are given.
ТЕОРЕТИЧЕСКИЙ АНАЛИЗ ЭЛЕКТРОМАГНИТНЫХ ПОМЕХ,
ОБУСЛОВЛЕННЫХ РАБОТОЙ ЭЛЕКТРООБОРУДОВАНИЯ СУДОВЫХ ЭНЕРГЕТИЧЕСКИХ УСТАНОВОК И ИХ ЭЛЕМЕНТОВ
Authors: Белей Валерий Феодосиевич , Брижак Роман Олегович
Published: November 2021

В работе приведены основные термины и определения в области электро-магнитной совместимости (ЭМС) и электромагнитных помех. На примере судна пр. 488 показана электромагнитная среда судовой энергетической установки и ее элементов. Рассмотрены требования по обеспечению ЭМС и показатели качества электроэнергии, регламентируемые Правилами классификации и постройки морских судов и стандартами по качеству электроэнергии в системах общего назначения. Показано, что нормы, устанавливаемые стандартами, являются уровнями электромагнитной совместимости для кондуктивных электромагнитных помех, при соблюдении которых обеспечивается ЭМС электрооборудования судовых энергетических установок и их элементов. Дан теоретический анализ электромагнитных помех, обусловленных эксплуатацией силового судового электрооборудования: высшие гармоники напряжения и тока, колебания напряжения и фликер, провалы и перенапряжения. Отмечено, что нелинейные элементы при работе эмиссируют в электрическую сеть высшие гармоники тока. В результате напряжение в сети будет определяться напряжением, подводимым от питающей сети, и суммой падений напряжения от всего спектра высших гармоник тока нелинейного элемента. Рассмотрены электромеханические процессы в момент пуска электроприводов на базе асинхронных двигателей, и показано, что в подавляющем случаях они, наряду с нелинейными элементами, являются основными источниками кондуктивных электромагнитных помех в судовой электроэнергетической системе. В момент пуска электропривода ток практически имеет индуктивный характер, что обуславливает увеличение падения напряжения в питающих линиях, ведет к снижению результирующего поля синхронного генератора вследствие увеличения продольной составляющей реакции якоря и, соответственно, к уменьшению напряжения на зажимах дизель-генератора. Для оценки рекомендаций по снижению уровня электромагнитных помех, обусловленных работой судового силового электрооборудования, создана лабораторная модель с источниками этих помех.
ПРОГРЕССИВНОЕ РАЗВИТИЕ ЦЕНОЭКОСИСТЕМ
КОРМОВОГО НАЗНАЧЕНИЯ В УСЛОВИЯХ СЕВЕРО-ЗАПАДНОГО РЕГИОНА
Authors: Троян Татьяна Николаевна , Бедарева Ольга Михайловна , Гайманова Анастасия Александровна , Карачинова Любовь Валерьевна
Published: November 2021

Сырьевая база производства кормов различна в глобальных и региональ-ных условиях. Основной упор делается на калорийность и себестоимость кормов. Индикатором при выборе культуры для производства растительного сырья выступает как количественная, так и качественная его оценка. Увеличение объемов производства продовольственных культур, выращиваемых на суше, является сложной задачей из-за высоких рисков агроклиматических условий при формировании урожайности, а также при конкуренции за ограниченные земель-ные и водные ресурсы. Наземная аквакультура играет важную роль в обеспечении продовольственной безопасности. В связи с этим изучение сырьевой кормовой базы для целей рыбоводства актуально в условиях современного мира. Изучен вопрос возможности использования многолетних трав в качестве компонента рыбных комбикормов. В результате исследований выявлена динамика роста многолетних трав в луговых фитоценозах. Выполнена графическая интерпретация циклов стравливания и циклов скашивания. Определен период спелости трав. В зависимости от темпов прироста лугового фитоценоза представлена цикличность роста многолетних трав злаково-бобового ботанического состава. Отмечено уменьшение валового урожая, коррелирующего с ритмами роста и развития в течение вегетационного периода, что связано со снижением продукционного процесса растений во второй половине. Большую роль в системе управления кормовыми угодьями играют элементы минерального питания. Для повышения экологической пластичности и стрессоустойчивости в систему питания вводят калийные и фосфорные удобрения в наиболее критичные периоды развития многолетних растений. Дополнительная фосфорная и калийная подкормки в конце вегетационного периода повышают устойчивость трав в зимний период.
СОВЕРШЕНСТВОВАНИЕ ТЕХНОЛОГИИ ПРОИЗВОДСТВА
ЦЕЛЬНОКУСКОВЫХ МЯСНЫХ ПРОДУКТОВ ИЗ СВИНИНЫ
С ПРИМЕНЕНИЕМ БАМБУКОВЫХ ПИЩЕВЫХ ВОЛОКОН
Authors: Альшевская Марина Николаевна , Анистратова Оксана Вячеславовна , Баранаускас Владимир Антанович
Published: November 2021

Разработка рецептур мясных продуктов и технологических параметров их производства, позволяющая увеличить выход и уменьшить себестоимость, явля-ется актуальным направлением исследований. Для решения данной задачи широ-ко применяются пищевые добавки (фосфаты, модифицированные крахмалы, каррагинан и др.), увеличивающие влагоудерживающую способность белков мы-шечной ткани и изменяющие вязкость мышечного сока в процессе тепловой об-работки. Введение пищевых волокон в рецептуру мясных продуктов позволит не только решить технологическую задачу по увеличению выхода готового изделия, но и повысить его пищевую ценность. В работе показана возможность использо-вания бамбуковой клетчатки в качестве пищевой добавки для увеличения выхода готового мясного продукта и улучшения его качественных характеристик, а также снижения массовой доли фосфатов при производстве цельнокусковых мясных продуктов из свинины. Установлены параметры инъектирования свиного окорока (давление 2,8 бар при скорости шага 30 об/мин), отработаны и выбраны оптимальные режимы массирования (5 ч общего времени работы при 7 об/мин и 10 мин покоя) и термической обработки (сушка 1,5 ч при температуре 55 +2 ºС, копчение 45 мин при 65 +2 ºС, варка 80 мин при 84+2 ºС). Обоснованы сроки хра-нения окорока копчено-вареного по микробиологическим и органолептическим показателям. Результаты полученных исследований легли в основу рецептуры мясного продукта «Окорок копчено-вареный» с добавлением бамбуковой клет-чатки, разработаны проекты технической документации, технологическая схема производства.