bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of smartphones in dermatology practice: a cross-sectional survey
Authors: Nair Priya Prabhakaran , Manju Leela
Published: February 2021

Background: Smartphones have revolutionised medical practice including dermatology because of its multiple functions assisting practitioners at the point of care and beyond. We aimed to analyse the pattern of smartphone use by dermatologists and to explore their opinions and difficulties faced while using smartphone

Methods: This cross-sectional study included a population of dermatology consultants and residents in Kerala, India. A validated self-reported questionnaire was emailed to them using a survey tool to collect the data

Results: Overall 100 practitioners responded to the questionnaire with a response rate 10.6%. Consultants and residents accounted for 81% and 19% of the participants respectively. Females (78%) outnumbered males. Most (58.6%) belonged to age group 31-40 years. Everyone owned a smartphone with the most prevalent operating system (OS) being android (85.9%). Medical communication was done mostly using phone calls (92%). Drug reference (94%) was the most popular noncommunicative application. Most participants (85%) used smartphone camera for clinical photography. OS freezing was the biggest technical issue whereas inappropriate use and distraction were the biggest nontechnical challenges of smartphone use. Clinical photography was taken by 95% for disease monitoring with significantly higher usage in females. Those upto 40 years of age significantly took and shared clinical photographs for second opinion more than older ones. Only 17.2% with significantly higher males than females took written consent for photography.

Conclusions: Dermatologists use smartphone extensively for communication, information and photography with preferences varying with age, gender and level of training.
Exercise and Cardiovascular Disease
Authors: Agarwal Shashi K
Published: February 2021

Cardiovascular diseases are the leading cause of global mortality. Besides imparting a tremendous amount of human suffering, they also inflict huge direct and indirect financial costs on the worldwide society. With the ready availability of affordable therapeutics, and the lack of newer innovations, non-invasive strategies are being developed to halt their worldwide spread. The major emphasis has been on implementing lifestyle changes. Physical exercise is one such prescription. This manuscript briefly discusses the benefits of exercise in the prevention and management of cardiovascular diseases.
The Impact of Interest Rate Marketization on Commercial Banks
Authors: He Yulin
Published: February 2021

Interest rate marketization means that the interest rate level of financial institutions operating and financing in the money market is determined by market supply and demand. It includes interest rate determination, interest rate transmission, interest rate structure and marketization of interest rate management. At present, there are still many deficiencies and defects in the traditional interest rate management system. The reform of interest rate marketization is the focus of China’s financial system reform. Therefore, we should not only be brave in innovation, but also carefully study and analyze. In the analysis process, this paper focuses on the impact of interest rate marketization on commercial banks, and puts forward some countermeasures.
Research on the Time-Varying Characteristics of China’s Financial Cycle Volatility and Its Macroeconomic Effects
Authors: Tao Silin , Du Xiaoyu , Cheng Juan , Chen Yixin
Published: February 2021

Based on China’s financial cycle fluctuations, this paper first analyzes the characteristics of financial structure in the process of financial cycle fluctuations, further explains the relationship between the time-varying characteristics of macroeconomic effects and financial cycle fluctuations, and finally summarizes the dynamic characteristics of time-varying characteristics of macroeconomic effects, hoping that this paper can provide constructive suggestions for relevant fields.
An Empirical Study on the Profitability of Chinese Commercial Banks — Based on Factor Analysis
Authors: Hu Yujun
Published: February 2021

The supporting role of financial development on the real economy is unquestionable. How to improve the profitability of commercial banks, allocate more resources efficiently and quickly to the key links of development, and urge financial institutions to better serve the real economy, is our breakthrough in economic development bottlenecks important node. Based on the data of 16 listed commercial banks in 2018, this paper uses factor analysis to calculate the profitability scores of each bank, discusses how commercial banks can better serve the real economy, and proposes corresponding policy recommendations.
How Did COVID-19 Affect the Chinese Real Estate Stock Market: An Empirical Research
Authors: Hsu Lei
Published: February 2021

COVID-19 has brought disruptions to various industries in China. The real estate industry can’t remain immune from the shock as well, which can be presented by the performance of real estate stocks. This study investigates the effects of COVID-19 on the Chinese real estate stocks. Statistical methods, such as OLS regression, are used to explore the effects of new cases, new deaths, new recoveries, bad and good news about COVID-19 of provinces where the headquarters of the sample companies lie on the daily stock returns as well as the changes of volatilities before and after COVID-19. Event study is employed to discover the effects of important events during COVID-19. Results suggest that positive information about COVID-19 significantly increased daily stock returns of the listed real estate company in that province. Total risk and idiosyncratic risk of real estate stocks have increased significantly since COVID-19, while systematic risk has decreased significantly. Among the crucial events during the pandemic, the lockdown of Wuhan significantly caused negative abnormal returns for real estate stocks.
FRACTAL MAGMAS AND PUBLIC-KEY CRYPTOGRAPHY
Authors: Tsvetov V. P.
Published: February 2021

In this paper, we deal with magmas the simplest algebras with a single binary operation. The main result of our research is algorithms for generating chain of finite magmas based on the self-similarity principle of its Cayley tables. In this way the cardinality of a magmas domain is twice as large as the previous one for each magma in the chain, and its Cayley table has a block-like structure. As an example, we consider a cyclic semigroup of binary operations generated by a finite magmas operation with a low-cardinality domain, and a modify the Diffie-Hellman-Merkle key exchange protocol for this case.
THE EFFECT OF METAL ALLOY MICROSTRUCTURE
ON THE THICKNESS DISTRIBUTION IN THE CIRCULAR PLATE UNDER THE SUPERPLASTIC BLOW-FORMING
Authors: Beliakova T. A. , Goncharov I. A.
Published: February 2021

The gas-blow forming of sheet specimens under the superplastic conditions is the widespread and intensive developing technological method for metal-forming of modern alloys (mainly on the aluminium and titanium base). The investigation of evolution of the microstructure parameters in the deformation process is necessary to obtain the defect-free constructions with required mechanical properties. In thepresent paper the blow-forming process of the thin circular plate to the hemispherical form is modelled. The stress-strain relations used include the parameters of the grain size and of the hardening depending on theaccumulated plastic strain. It is shown that taking into account the evolution of the microstructure parameters in the superplastic deformation can significantly improve the estimation of the optimal characteristics of the manufacturing process and eventually can provide the most thickness-uniform engineering product.
DYNAMIC PROBLEM FOR A THIN-WALLED BAR WITH A MONOSYMMETRIC PROFILE
Authors: Elekina E. N. , Vronskaja E. A.
Published: February 2021

The paper presents an analytical solution to the dynamic problem for a thin-walled elastic rod, thecross-section of which has one axis of symmetry. The solution is constructed for an arbitrary dynamic load and two types of boundary conditions: hinged support in constrained torsion and free warping of the end sections of the rod; rigid fastening with constrained torsion and absence of warping. The peculiarity of the mathematical model lies in the fact that the differential equations of motion contain a complete system ofinertial terms. Spectral expansions obtained as a result of using the method of integral transformations are represented as an effective method for solving linear non-stationary problems in mechanics. The structuralalgorithm of the method of finite multicomponent integral transformations proposed by Yu.E. Senitsky is used.
Longing for a Change? (Тhe Paradoxes and Peculiarities of a Child Leaving Home Episode in the Victorian Novel)
Authors: Byachkova Varvara A.
Published: February 2021

It is analyzed the episode of a child leaving home for school in the novels «David Copperfield» and «Bleak House» by Charles Dickens and «Jane Eyre» by Charlotte Bronte. Studying at a boarding school and leaving home for it was quite a typical episode of life for the Victorians, but for the main characters of C. Dickens’ and Ch. Bronte’s novels the circumstances of leaving home are paradoxical and unusual so much, that it becomes a part of the initiation process. All of them are not happy at home. In fact, being orphans brought up by distant relatives (aunts or, in David’s case, cruel stepfather who is diminishing the role of David’s mother at home) they, strictly speaking, do not have home at all. That is why the characters are afraid to go to the new place but, at the same time, they are really longing for a change in their lives. Without being homesick, the children go through all other stages of initiation process. During their journeys they shut themselves off other people, feeling lonely among strangers and unsettled by the road. At school, they make new friend (stage of partnership). New people help David, Jane and Esther to know themselves better and reconsider their former experiences. As for the third stage (lethal stage, the experience of death), it is interesting that only Charlotte Bronte gives us the full, traditional representation of it, Dickens prefers his character to experience loss earlier (Esther) or in connection with long left home (David). The fourth stage (the transformation) is the child’s making peace with the world far from home. In all three novels the process of initiation, started with leaving home is necessary for the child to build a strong character, find one’s place in life and achieve happiness.
«Shortening The Parting» By Veniamin Borisov: Metamorphoses оf Time And Space
Authors: Khomyakov Sergey A.
Published: February 2021

The article examines the specificity of the artistic time and space of V. Borisov’s poetry «Shortening the parting» (2018). The purpose of the study is to identify the features of the spatio-temporal organization and semantics of the frame elements. During the research, textological and hermeneutic methods were implied. The book’s architectonics is based on the opposition of spatial and temporal forms. Such a construction is directly related to the semantics of poetry and the formation of a certain picture of the world of Borisov, whose lyrical character overcomes loneliness. The name of each poem is not only a reference to a specific source, but also a «key» important for understanding the underlying meaning (an indication of a fact or event). Seven color illustrations introduced into the collection make it possible to combine two types of art, and the poet to make his poems «visible» and create a chronicle of the main events. Contrasting in the collection near and far (city and village), closed and open (room and street) spaces, both in texts and in illustrations, V. Borisov focuses on the feelings the protagonist experiences when he is forced to gradually overcome loneliness. The season depicted in the figures is summer, the semantics and images of which appear throughout the collection and which is often contrasted with winter paintings. The main topos, where events unfold, appears to be Moscow as a city that “absorbed” the features of Dostoevsky’s Petersburg. The space of the capital appears as an alien to the lyrical character, who is forced to «wade through traffic, advertising, movie trailers.» Physical or cyclical time is either stated specifically («today»), or is present in allegorical images with accompanying motives. The effect of «slowed down» time can be achieved not only by the lack of indication of dates, but also by attachment to generally accepted or national events. Various spatial and temporal forms are presented in the book of poems «Shortening the Parting» by V. Borisov, which testifies to the complex organization of the collection and the author’s intention.
Folk Theme as an Epic Basis of Ivan Turgenev’s Novel «Virgin soil»
Authors: Andreeva Valeria G.
Published: February 2021

The author of the article refers to the epic essence of Turgenev’s novel «Virgin soil» and proves that the genre definition of «public novel» in its standard sense does not convey the entire depth of the work. The problem of the «character» of the novel and the accuracy of Turgenev’s characteristics of the populist movement is considered in terms of the organization of the present by Turgenev as an epic time and an illustration of the possibility of combining the general (national) and the personal. The work shows that each of the characters of the novel is measured by an epic, folk measure – the ability to work and proximity to the land.
Linguistic Means of Expressiveness Manifestation in Sports Journalism
Authors: Egorova Svetlana A.
Published: February 2021

The discourse space of sports journalism is determined by the intentionality and characteristics of the communicative situation, which allow it to be studied from the standpoint of pragmastylistics, cultural linguistics, discursive linguistics, the theory of speech influence, and sociolinguistics. However, the focus of research attention is fixated on clarification of those factors that provide the communicative effectiveness of media texts. The decisive role among these factors belongs to the elocutional organization of the media discourse.
On the Legal Regulation of the Fuel and Energy Complex Functioning in Extreme Conditions: General Approaches (on the Example of the Coronavirus Pandemic
Authors:   Doctor of Law, Professor Chief Research Scientist of the Institute of State and Law of the Russian Academy of Sciences Chief Research Scientist of the Energy Law Centre of the Saint-Petersburg State Economic University Corresponding Member of the Russian Academy of Sciences, Kleandrov Mikhail I.
Published: February 2021

The author reviews the issues of legal regulation of public relations in the Fuel and Energy Complex of the Russian Federation during the extreme period of the coronavirus pandemic. The author concluded that neither Russia nor any other foreign country had been ready to face the pandemic, both in terms of an action plan arrangement or legislative and regulatory control. Which, among other things, has had a negative impact on the performance of the Fuel and Energy Complex companies. For a radical solution of the issue, the article suggests and substantiates three options with due account for the fact that it is impossible to rule out potential next waves of the 2020 coronavirus pandemic or other global natural or anthropogenic catastrophes. The study was funded by the Russian Foundation for Basic Research within the frameworks of research project No. 20-011-00270.
On Strategic Tasks of the Use of Renewable Energy Sources and the Development of Legal Regulation
Authors:   Doctor of Law Head of the Department of Energy Law of the Kutafi n Moscow State Law University (MSAL) Director of the Center for Energy Law of the Saint-Petersburg State Economic University, Romanova Viktoria V.
Published: February 2021

The development of the national scientific and technological potential, creation and application of advanced technologies in the power industry, including the technologies related to the use of renewable energy sources, are defined in the Energy Security Doctrine of the Russian Federation as the main tasks of ensuring technological independence and raising competitiveness of the fuel and energy complex. Renewable energy sources and energy storage units are referred to breakthrough technologies that may trigger structural and technological changes in the management and functioning of power systems and facilitate the transition of the power industry to a new technological basis (the so called “energy transition”). The above-mentioned strategic tasks of the further development of the power industry of the Russian Federation require financial support and due legal regulation. The paper brings forward proposals for the further development of the legal regulation of renewable energy sources on the legislative level enabling to fill in the gaps in the current legal regulation.
Application and Prospect of Robotic Technology in Medical Clinic
Authors: Ma Haowei
Published: February 2021

In the process of gradually improving the level of clinical medical treatment and continuously developing industrial technology, the application of less invasive and non-invasive surgical methods in medical clinic is increasingly widespread. In the face of this situation, the inevitable trend of the development of surgery has been inclined to minimally invasive surgery. Under the background of a large number of new technologies in the clinical application of medicine, the application space of surgical minimally invasive surgery technology has become more and more extensive. The first successful laparoscopic cholecystectomy in 1987 is an important sign of the arrival of the era of minimally invasive surgery. The research and development of surgical robots based on this is a predictor of the gradual beginning of the era of surgical information processing. At this time, it will inevitably promote the qualitative improvement of surgical accuracy, and a new era of minimally invasive surgery will gradually open. At present, the latest “Da Vinci” surgical robot developed by ISRG company has been widely used in medical clinic.
Application Value of Coagulation Function Test in Prognosis of Patients with Cardiovascular and Cerebrovascular Diseases
Authors: Luo Jing
Published: February 2021

Objective: to explore the application value of coagulation function test in the prognosis of patients with cardiovascular and cerebrovascular diseases. Methods: from December 2018 to December 2019, 100 patients with cardiovascular and cerebrovascular diseases were randomly selected as the study group. According to the follow-up results of patients, they were divided into study group A (good prognosis, n = 64) and study group B (disability or death, n = 36) 100 subjects served as the control group. The test results of coagulation function of the two groups were analyzed retrospectively. The test results of the study group before and after treatment were compared with those of the control group, and the test results of the study group A and study group B after treatment were compared. Results: the coagulation function of the study group after treatment was significantly improved compared with that before treatment (P < 0.05), and there was a significant difference between the two groups before treatment (P < 0.05), and there was no difference after treatment (P > 0.05); after treatment, the coagulation function of study group A and study B was significantly different (P < 0.05). Conclusion: coagulation function test has a certain application value for the prognosis of patients with cardiovascular and cerebrovascular diseases, and can be used as an index to judge the patient’s condition and treatment effect, which has good application value in clinical practice.
Discussion on the Current Situation and Countermeasures of Food Hygiene Management in My Country
Authors: Li Yujie , Keat Khor Kok
Published: February 2021

In recent years, with the frequent occurrence of food safety incidents, all walks of life are paying more and more attention to food safety issues, which effectively promotes the development and optimization of the overall quality of food safety work in my country. On this issue, after a lot of exploration, the researchers pointed out that at this stage, my country’s food hygiene management still has certain shortcomings that need to be improved during the development process. Based on this, a large amount of management work is difficult to be implemented and practiced reasonably, which limits the improvement of the comprehensive level of my country’s food hygiene management work, and has an adverse impact on the development of my country’s food safety work. This article discusses the status quo of the development of food hygiene in my country, and proposes corresponding countermeasures, aiming to promote the optimization of the overall level of hygiene management.
Resistance or Complicity? Chinese Canadian Men Negotiating Whiteness and Masculinity in the Canadian Prairies
Authors: Sun Qingyan
Published: February 2021

In this essay, I critically analyze the practice of masculinity negotiation based on data collected through a qualitative study of hegemonic masculinity. Reflecting some dynamics of the historical subordination of Chinese masculinity in Canada, the Chinese Albertan males who participated in the research framed a somatic white masculinity, via which they discursively displaced themselves from the domain of the masculine. Some of them employed sport-participation to negotiate their masculine statuses. Underscoring whiteness as a material aspect of masculinity that cannot be performatively constructed by Chinese men, I argue that masculinity negotiation does not constitute an equitable means of resistance, as the very practice entrenches an archetypal masculine subject with whiteness at its centre. Through this discussion, I wish to incite conceptualizations of resistance in more critical terms.
Catch Me When I Fall! Resiliency, Freedom and Black Sisterhood in the Academy
Authors: Mullings Delores V. , Gooden Amoaba , Brown Spencer Elaine
Published: February 2021

Many Black women academics feel caged in their ‘subject position[s]’ within the academy. They are challenged by lack of opportunities and mentorship, isolation, explicit racism, micro-aggressions and stereotyping. Despite the ways in which their bodies are marked by racist sexism, Black women faculty take on an inordinate amount of unrecognized, differentiated labour and service work in the academy. They tend to assist other racialized colleagues, graduate and undergraduate students to achieve academic success. There is a common thread of resiliency among these women who successfully navigate their paths in the academy through applications of the concept of Radical Black Academic Sisterhood. This is an interpretive praxis that utilizes both an oppositional stance and creates brave spaces to deal with experiences of being caged.
One's Freedom is Another's Cage
Authors: Duchscher Towani
Published: February 2021

This work challenges the ways that people, predominantly white men, use their bodies and voices to centre themselves in public spaces and identifies the reactions of others to centre the men as well. By paying attention to my somatic knowledge and embodied experiences, I developed a more intricate understanding of the concept of “colonizing the space.” Through poetry, I share lived experiences of this phenomenon in an effort to draw attention to how we engage with each other in our communities and public spaces. As importantly, I imagine and celebrate responses that do not cage or marginalize our voices and bodies but “claim the sky” (Angelou, 1983, p. 19) and sing.
Bamboo Plant (foreground), Sunrise over the Blue Mountains, Jamaica
Authors: Lewis Emma
Published: February 2021

A photograph depicting the image of a bamboo plant silhouetted against a sunrise  over the Blue Mountains in Jamaica.
Aisha Tandiwe Bell: Artist Statement and Artwork
Authors: Bell Aisha Tandiwe
Published: February 2021

Featured artwork with accompanying Artist's Statement of Aisha Tandiwe Bell. These works represent a new visual manifestation of ideas on the traps of race, sex and class, as well as an exploration of the tools used to navigate, carry and circumvent these traps.
RT-PCR Assay for Detection of Enterotropic Strains of Mouse Hepatitis Virus in Faecal Samples
Authors: Srinivasan M.R. , Vijay K. , Karuppannan A.K. , Ramesh S. , Reddy Y. Krishnamohan
Published: February 2021

Background: Mouse Hepatitis Virus (MHV) is one of the most important and common viral infections of laboratory mice, due to its highly contagious and subclinical nature, posing threat to the research outcomes. Periodic screening of laboratory mice for MHV is mandatory. Hence, this study was intended to develop sensitive faecal based RT-PCR assays to detect active infection of enterotropic MHV in laboratory mice. Methods: Primers targeting N-gene of MHV were selected and their sensitivity was analysed in tenfold serially diluted gene template in the presence of negative mouse faecal cDNA. Thirty-six weaned mice at the age of 6 to 18 weeks were randomly selected at different periods and the blood and faecal sample were collected for serology and RT-PCR assay respectively. RT-PCR assay in colon samples was carried out for comparison. Result: PCR assay of MHV detected as low as 4 fg of plasmid DNA. Seroprevalence of MHV is very high than the prevalence by RT-PCR assay showing its retrospective nature and also seroprevalence includes both enterotropic and polytropic strain. RT-PCR results in faecal samples are analogous with that of the colon samples, showing the reliability of antemortem testing of mice for enterotropic strain of MHV.
Performance of Pod Orientation at Sowing on Germination and its Related Attributes in Peanut (Arachis hypogaea L.)
Authors: Nivethadevi P. , Sobhana E. , Swaminathan C.
Published: February 2021

Background: A Field experiment was conducted at Agricultural College and Research Institute, Madurai, India during summer, 2020 to evaluate performance of different orientations of double pod sowing in comparison with kernel sowing (practice) on germination variability, yield and its related parameters of peanut. Methods: The experiment set up with four treatments replicated four times with pods sowing orientations viz., i) Sowing with vertical posterior-upwards ii) Vertical posterior-downwards iii) horizontal sowing and iv) sowing with kernels. Result: Results showed a little variation in germination between sowing orientation of double pods compared to kernel sowing. Though, mean germination percentage, germination energy, germination value and emergence energy value were higher in kernel sowing, pod sowing with vertical-posterior downwards elevated germination percent up to 97.45% and also inflated germination attributes and yield.
Prediction of Field Performance of Seed Lots of Groundnut (Arachis hypogaea L.) through Vigour Tests
Authors: Biradarpatil N.K. , Rana Smayli , Patil Shivasharanappa S.
Published: February 2021

Background: Profitable farming indeed needs a seed which emerges and performs better under natural ecosystem. The inadequacy of seed germination test in predicting the field performance of a seed lot, as it is carried out under controlled laboratory conditions which may not meet in the field necessitates the development and standardization of tests in a way that would reflect the performance of seeds in the field through laboratory tests. Methods: A laboratory based seed vigour tests were undertaken with 20 different seed lots of groundnut variety GPBD-4 having different vigour levels to predict the field performance. The correlation and regression analysis among the laboratory based seed vigour tests and field performance was analyzed. Conclusion: The significance of lab vigour test on the field performance revealed that, electrical conductivity was highly negatively correlated to seed emergence, speed of emergence, plant population and pod yield with r = - 0.885, - 0.885, -0.843 and -0.845, respectively. Similarly, accelerated ageing was highly correlated to plant population (r = 0.864), plant height (0.737) and pod yield (r = 0.815). Whereas, the mean germination time calculated based on radicle emergence test contributed more than 80% to field performances and mean while, electrical conductivity influencing for 71.4% variation in the pod yield. Thus, hinting refinement and use of electric conductance, accelerated ageing and mean germination time tests towards efficient prediction of field performance of groundnut seed lots.
Optimizing the Application Time of Pre-emergence Herbicide Pendimethalin and Oxyfluorfen Application for Effective Weed Management in Irrigated Blackgram (Vigna mungo L.) and Its Residue Persistence
Authors: Selvakumar S. , Ajaykumar R. , Ammaiyappan A.
Published: February 2021

Background: Time of pre-emergence herbicide application is an important factor that decides the efficiency of herbicide. If the pre-emergence herbicide is not applied at appropriate time, it may cause ineffective weed control or toxicity to crops. With this background, a field experiment was conducted at TNAU, Madurai to optimize the time of pre-emergence herbicides namely pendimethalin and oxyfluorfen application for effective weed management in irrigated blackgram. Methods: The experiment was laid out in randomized block design with three replication. Treatments were application of pendimethalin at 0.75 kg ha-1 and oxyfluorfen at 0.2 kg ha-1 on 1, 2, 3, 4 days after sowing, weed free check and unweeded check. Result: Results of the study revealed that oxyfluorfen gave maximum weed control efficiency as compared to pendimethalin, but toxicity to the crop was observed when oxyfluorfen was sprayed after 2 days of sowing. Yield and economics were achieved higher with application of 0.75 kg ha-1 of pendimethalin at 2 DAS, which was on par with application of 0.2 kg ha-1 of oxyfluorfen at 1 DAS due to lesser toxicity. Application of 0.75 kg ha-1 of pendimethalin and 0.2 kg ha-1 of oxyfluorfen didn’t leave any herbicide residue after harvest. Hence, application of 0.75 kg ha-1 of pendimethalin at 2 DAS and 0.2 kg ha-1 of oxyfluorfen at 1 DAS can be recommended for effective weed management in irrigated balckgram.
Prevalence and Intensity of Parasitic Worms on Free-Range Chickens and Egg-Laying Chickens in Muara Badak sub-District, Kutai Kartanegara
Authors: Hariani Nova , Simanjuntak Imilia
Published: February 2021

One of the diseases often threatens the health of free-range chickens and egg-laying chickens are worm parasites (endoparasites). Parasites can be transmitted through food, drinks and the cage environment. Sanitation is one of the preventive steps carry out by farmers to protect livestock against infection from the environment. The objective of study was to determine the prevalence and intensity of parasitic worm eggs that infect the digestive tracts of free-range chickens and egg- laying hens in Muara Badak District. Research was done by observing worm eggs in fecal samples. A total of 60 samples consisting of 30 samples of egg-laying hens in Tanjung Village and 30 samples of free-range chickens in Badak Baru Village, Muara Badak. For the sample analysis technique used 2 methods are namely the floating method and the sedimentation method. The results has showed the type of worm eggs are infected the digestive tract found in free-range chickens and egg-laying chickens had consisted of Echinostoma revolutum, Raillietina echinobothrida, Raillietina tetragona, Davainea proglotina, Amoebotaenia sphenoides, Ascaridia galli, Capillaria annulata and Trichostrongylus tenuis. The highest prevalence in free- range chickens and egg-laying chickens were found in Ascaridia galli was 53.33% and 40%. While the lowest prevalence in free-range chickens against Raillietina echinobothrida and Amoebotaenia sphenoides 3.33%. egg-laying chickens are against Echinostoma revolutum, Raillietina tetragona and Trichostrongylus tenuis 6.67%. The highest intensity in free-range chickens and against Ascaridia galli was 141 eggs/individual and in egg-laying chickens was 139 eggs/individuals. The lowest intensity in this research was found in free-range chickens against Amoebotaenia sphenoides and Raillietina echinobothrida 3 eggs/individuals and egg-laying chickens against Echinostoma revolutum 5 eggs/individuals. Keywords: Endoparasites, Prevalence, Intensity, Chicken, hen.
The Diversity of Potential Malaria and Dengue Mosquito Vector from Bangsring Village Wongsorejo District Banyuwangi East Java
Authors: Azkiyah Siti Fat'hiyatul , Senjarini Kartika , Oktarianti Rike , Wiyono Hidayat Teguh , Wathon Syubanul
Published: February 2021

Bangsring village in Wongsorejo regency has been reported as malaria endemic area in Banyuwangi since 2011. Understanding the diversity and behavior of mosquito vector in this area will be very impotant in developing vector control program. The masquitoes were collected by landing collection outside and inside house by human bites, we also observed the area around cattle cage. During observation periods, a total 633 masquitos were collected consist of 44% malaria potential vector (Anopheles spp.) 19% Dengue fever (DF) potential vector (Aedes spp.) and 36% were not belong to both of them. Out of total collected Anopheles spp. mosquitoes about 65% were indentified as An. vagus, 25% were An. indevinitus, 8% were An. vagus (limosus), and only 2% as well as 0,04 % were An. supictus and An. kochi. Meanwhile we found 19% of Aedes sp. were Ae. aegypti and 81% were Ae. albopictus. This study showed that the dominan potential malaria’s vector is An. Vagus and the dominan DF vector is Ae. albopictus. Mostly colleted Anopheles sp. were exophagic and zoophilic with the highest activities between 06.00-08.00 pm. This was in contras to Aedes sp. where mosfly found endophilic and it has 2 hightime of activities Aedes sp. between 06.00- 07.00 AM and 05.00-06.00 PM. Keywords: Dengue, Malaria, diversity, Anopheles, Aedes.
Spatial Distribution Patterns of Lantana camara L. Population as Invasive Alien Species In Pringtali Savana Bandealit Resort Meru Betiri National Park
Authors: Sulistiyowati Hari , Rahmawati Emitria , Wimbaningrum Retno
Published: February 2021

Bandealit is one of the resorts in Meru Betiri National Park (MBNP). This area has many endemic floras and faunas affected by the presence of invasive alien spesies plants. These plants tend to give negative impacts on savana ecosystem among them is, Lantana camara L. The distribution of this invasive alien spesies in the savana can be used to provide information about the characteristic of the environment. This study was conducted to investigate the patterns of spatial distribution of invasive alien L. camara population in the Pringtali Resort Bandealit savana region. The characters of plant species morphology was recorded for species name identification and validation. Percent cover of the individual L. camara species was collected within 50 plots (5x5 m2), while each of coordinate species found in the plots was recorded by using GPS (Global Positioning System). Abiotic factors such as temperature, pH, light intensity, and soil moisture were measured within the plots. The location of the data collection is 5,000 m2. The distribution pattern of invasive alien L. camara population was analyzed using ArcGIS and Dispersion Morisita’s Index (Ip). The result showed that 51.7% of L. camara population grew spasially close together (clumped) or overlapped one another based on the ArcGIS. This means that L. camara individuals distributein clumped pattern. While the other individuals (48.3%) grew apart randomly from each other. This distribution pattern showed by Ip value, 0.51 was also clumped or clustered. It can be concluded that the distribution pattern ofinvasive alien species L. camara is clumped because the reproduction of plant was by seeds dispersal or vegetative buds that lived around parental individuals.Keywords: ArcGIS, Lantana camara L., Invasive Foreign Plants, Morisita index, Distribution Pattern.
Propiedades psicométricas y métodos de medición de la escala de autoinforme sobre el trastorno de déficit de atención e hiperactividad en adultos – tamizaje (ASRS- Tamizaje) en la población de Lima.
Authors: Robles Yolanda I. , Saavedra Javier E. , Agüero Ysela D.
Published: February 2021

Objetivos: Determinar la distribución de puntajes, confiabilidad, validez y asociación con variables sociodemográficas de la Escala de Autoinforme sobre el Déficit de Atención e Hiperactividad en Adultos–Tamizaje (ASRS-Tamizaje) en la población de Lima y Callao, según dos formas de calificación (binaria y Likert), y establecer la concordancia entre ambas. Material y Métodos: Se realizó un análisis secundario de la base de datos del Estudio Epidemiológico de Salud Mental de Lima Metropolitana y Callao 2012 – Replicación, en una muestra de 4445 personas de 18 o más años de edad (42,6±17,4). Resultados: El promedio de la ASRS-Tamizaje en escala Likert fue 3,74+3,9 (rango 0-21), la consistencia interna mediante coeficiente alfa de Cronbach =0,806 y mediante el coeficiente omega de McDonald =0,869; el análisis factorial mostró que 52,95% de la inercia total era explicado por un solo factor. En escala binaria la media fue 0,89+1,27 (rango 0-6), el alfa de Cronbach =0,599, el omega de McDonald =0,753 y el 52,31% de la inercia fue explicado por dos factores. Con ambas escalas, se halló un coeficiente Kappa =0,734 de concordancia de tamizajes positivos. Las dos formas de la escala se asocian con la edad, en tanto que solo la clasificación binaria lo hace con estado civil y grado de educación. Conclusiones: La ASRS-Tamizaje es un instrumento de consistencia interna aceptable. Su estructura factorial y la prevalencia de tamizajes positivos varían según la forma de medición (Likert o binaria).
Asesoramiento genético a una portadora asintomática de DMD: Primer caso reportado en el Sistema de Salud Pública del Perú
Authors: Bazalar-Montoya Jeny , Illanes-Manrique Maryenela , Inca-Martinez Miguel , Marca Victoria , Huaman-Dianderas Francia , Guevara-Fujita Maria Luisa , Fujita Ricardo , Cornejo-Olivas Mario
Published: February 2021

La distrofia muscular de Duchenne (DMD) es una distrofinopatía rápidamente progresiva con herencia ligada al cromosoma X. Este reporte describe el caso de una mujer con historia familiar de hermano y sobrinos con DMD, que acudió a consulta para orientación e información sobre riesgos inherentes a una eventual planificación familiar. Le propusimos participar en un programa piloto de asesoramiento genético para determinar su estado de portador o no de la variante causal de DMD en la familia. Esta primera experiencia ilustra la importancia de tener un programa de asesoramiento genético para el diagnóstico de portadores asintomáticos de enfermedades neurogenéticas en regiones con bajos recursos. Se incluyen reflexiones y comentarios sobre aspectos positivos y retos presentados durante el proceso, las políticas de apoyo presente y futuro para el afronte de los complejos problemas planteados por éste y similares diagnósticos.
Shallow Water Seabed Profile Changes in 2016 - 2018 Based on Landsat 8 Satellite Imagery (Case Study: Semak Daun Island, Karya Island and Gosong Balik Layar)
Authors: Aulia Zahra Safira , Ahmad Triguardi Tharik , Ayustina Ratih Rachma , Hastono Fauzi Tri , Hidayat Rizqi Rizaldi , Mustakin Haji , Fitrianto Agi , Rifanditya Faras Bagus
Published: February 2021

Seribu Islands is one of the marine tourism destinations in  Jakarta. The high level of tourism in the Seribu Islands can be a threat to shallow water seabed profile habitat. Therefore, monitoring of changes in shallow water seabed profile habitat is needed so the sustainability can be monitored. This study aimed to determine changes in the shallow water seabed profile on Karya Island, Semak Daun Island, and Gosong Balik Layar in 2016 and 2018 based on Landsat 8 Satellite Imagery. Methods of this research used satellite image pre-processing, image classification, field survey, image reclassification, and accuracy assessment.  The results showed that the coral area had decrease trend, while the area of Seagrass mix Seaweed had increased. The result of this classification had an accuracy value of 71.52%. Keywords: remote sensing, multispectral imagery, Lyzenga, benthic habitat, Seribu Island
On methodological approaches to develop educational programs in the school-university system taking into account continuity
Authors: Shuinshina Sh. M. , Alpeisov E. A. , Tuyakov E. A. , Akhmetova B. S. , Kuatbayeva D. E.
Published: February 2021

The article objective is to define the basis of educational program continuity of higher pedagogical education and general secondary education in conditions of the secondary education renewal.

Research Methodology. The authors carry out analytical and comparative study, analysis of philosophical, psychological, pedagogical, scientific and methodological literature, normative legal documents, forecasting, and synthesis.

Results. The paper defines methodological approaches determining the basis of continuity of educational programs in the school-higher educational institution system; structural and substantive features of educational curricula of secondary education and higher education in the Republic of Kazakhstan; methodological basis of educational program design. To preserve and improve continuity in training teachers in natural science, higher educational institutions are offered recommendations to develop educational programmes and modular curricula based on the existing program study and analysis. The aurhors reveal didactic principles of ensuring continuity of educational programs of secondary and higher pedagogical education, and draw up a matrix for determining the content of education. Scientific novelty. The study is the first systematic work to ensure continuity of natural and scientific pedagogical education in the school-university system in frames of updating the content of secondary education. Practical importance. To improve the quality of training future teachers in natural science, recommendations are developed to improve the content of educational programmes based on continuity, which are the foundation to develop theoretical and methodological bases for ensuring the continuity of natural science education.
On the problem of metacognitive regulators of the university student viability
Authors: Tarakanov A. V.
Published: February 2021

The article is devoted to the analysis of the phenomenon of vitality and its metacognitive regulators, in particular, cognitive styles. The vitality is considered as a multi-causal phenomenon that integrates various cognitive, emotional and personal aspects. The analysis made it possible to identify and describe the components and factors of viability using various methodological approaches: systemic, system-network, inte grative, structural ones. The study compares the concepts of «vitality and «hardiness». The base of the empirical study are the model of viability by E. A. Rylskaya, model of hardiness by S. Maddy, and typology of cognitive styles by A. Harrison -R. Bramson. The author identifies the most and least pronounced cognitive styles, as well as their relationship with the parameters of vitality and hardiness based on research on a student sample. So, the most pronounced styles are «analyst» and «realist» styles, and the least pronounced – «synthesizer» style. Correlations of the «idealist» and «pragmatist» styles with the parameters of vitality and hardiness are grouped into opposite pleiads. The study reveals that the ability to plan, predict, reflexive analysis, acting as its metacognitive regulators, play the greatest role in the vitality forming. At the same time, a pronounced pragmatic orientation in thinking leads to the vitality decrease.
Experimental Evolution of Magnetite Nanoparticle Resistance in Escherichia coli
Authors: Ewunkem Akamu , Rodgers LaShunta , Campbell Daisha , Staley Constance , Subedi Kiran , Boyd Sada , Jr Joseph L. Graves
Published: February 2021

Experimental evolution was utilized to produce 5 magnetite nanoparticle-resistant (FeNP1-5) populations of Escherichia coli. The control populations were not exposed to magnetite nanoparticles. The 24-hour growth of these replicates was evaluated in the presence of increasing concentrations magnetite NPs as well as other ionic metals (gallium III, iron II, iron III, silver I) and antibiotics (ampicillin, chloramphenicol, rifampicin, sulfanilamide, tetracycline). Scanning electron microscope was utilized to determine cell size and shape in response to magnetite nanoparticle selection. Whole genome sequencing was carried out to determine if any genomic changes that resulted from magnetite nanoparticle resistance. After 25 days of selection magnetite resistance was evident in the FeNP treatment. The FeNP populations also showed a highly significantly (p < 0.0001) greater 24-growth as measured by optical density in metals (Fe (II), Fe (III), Ga (III), Ag and Cu II); as well as antibiotics (ampicillin, chloramphenicol, rifampicin, sulfanilamide, and tetracycline). The FeNP resistant populations also showed a significantly greater cell length compared to controls (p < 0.001). Genomic analysis of FeNP identified both polymorphisms and hard selective sweeps in the RNA polymerase genes rpoA, rpoB, and rpoC. Collectively, our results show that E. coli can rapidly evolve resistance to magnetite nanoparticles and that this result is correlated resistances to other metals and antibiotics. There were also changes in cell morphology resulting from adaptation to magnetite NPs. Thus, the various applications of magnetite nanoparticles could result in unanticipated changes in resistance to both metal and antibiotics.
Modelling the Growth and Death of Staphylococcus aureus against Melaleuca armillaris Essential Oil at Different pH Conditions
Authors: Buldain Daniel , Gortari Castillo Lihuel , Marchetti María Laura , Julca Lozano Karen , Bandoni Arnaldo , Mestorino Nora
Published: February 2021

Essential oils (EO) are a great antimicrobial resource against bacterial resistance in public health. Math models are useful describing the growth, survival, and inactivation of microorganisms against antimicrobials. We evaluated the antimicrobial activity of M. armillaris EO obtained from plants placed in the province of Buenos Aires (Argentina) against Staphylococcus aureus. Minimum Inhibitory and Bactericidal Concentrations were close and decreased slightly acidifying the medium from pH 7.4 to 6.5 and 5.0. This result was also evidenced by applying a sigmoid model, where the time and EO concentration necessaries to achieve 50% of the maximum effect decreased when medium was acidified. Moreover, at pH 7.4, applying the Gompertz model, we found that subinhibitory concentrations of EO decreased the growth rate and the maximum population density, and increased the latency period respect to the control. Additionally, we established physicochemical parameters for quality control and standardization of M. armillaris EO. Mathematical modelling allowed us to estimate key parameters in the behavior of S. aureus and Melaleuca armillaris EO at different pHs. This is interesting in situations where the pH changes are relevant, such as the control of intracellular infections in public health or the development of preservatives for food industry.