bluuebunny/crossref_metadata_2025 huggingface dataset:
Anthropogenic pollution of estuaries in south Primorye: a review
Authors: Kolpakov Nickolay V.
Published: July 2021

Cited data on anthropogenic pollution of the estuaries in south Primorye (northwestern coast of the Japan Sea) are briefly reviewed and analyzed. The estuaries are ranked by concentration of pollutants in the sewage disposed to the rivers and by integrated abiotic index calculated as the sum of toxicity in the bottom sediments and concentration of petrohydrocarbons in water and grounds. By these parameters, the oligohaline estuaries of big rivers as the Razdolnaya and Artemovka have the highest level of pollution, the mesohaline estuaries as the Tesnaya, Gladkaya, and Kievka have the intermediate rank of anthropogenic impact, and the polyhaline estuaries of small rivers as the Sukhodol, Shkotovka, Barabashevka, and Ryazanovka are low polluted. The estuarine ecosystems are generally well-adapted to high variability of environmental factors, and therefore are highly resistant to anthropogenic pollution. There is concluded that, despite of considerable pollution in some cases, dynamics of the estuaries dwellers abundance is determined mainly by natural factors, first of all by the volume of freshwater discharge, the estuarine ecosystems in Primorye function normally, and the state of their biological resources is sufficient. Thus, fishery, aquaculture, and recreations have at present good prospects in the estuaries and adjacent marine and river waters, in parallel with other economic activity, as hydraulic constructions, certainly under condition of all requirements of the nature protection legislation and with ecological monitoring. For these water bodies, technological and economic development can successively coexist with traditional nature management and wildlife preserving.
Modern modification of the method for determination of organochlorine pesticides in organic vehicles
Authors: Chernyaev Andrey P. , Rychkova Ekatherina Yu. , Kondrikov Nickolay B. , Zyk Ekatherina N.
Published: July 2021

New method for determination of organochlorine pesticides (DDT and its metabolites, HCH and its isomers) is presented. The method includes a liquid-liquid extraction of pesticides under ultrasound and the substance analysis by gas-liquid chromatography. The degree of DDT and γ-HCH extracting from tissues of marine organisms is (78 ± 2) % and (91 ± 2) %, respectively. The total content of organochlorine pesticides in muscles of walleye pollock from the Okhotsk Sea is evaluated by this method in the range from 25 to 73 pg/g of lipids.
On simplified interpretations of limiting factors and dynamics of for abundance for some commercial fishes in the Far Eastern waters
Authors: Shuntov Vyacheslav P.
Published: July 2021

Modern views on dynamics of some mass fish species, as walleye pollock Theragra chalcogramma , pacific salmon Oncorhynchus spp., and japanese sardine Sardinops melanosticta are critically analyzed. Recent tendency to formal and simplified approaches in explaining the status of populations and the factors limiting their abundance is noted, both for biologists and fishery oceanographers. It is reasoned by shortage of expeditionary researches combined with passion for formal indices and ignoring the role of population and endogenous factors in forming of new generations.
Prevalence of risk factors for arterial hypertension among draft age youth
Authors: Uvarovskaia Basana V. , Mel’nik Mariia V. , Kniazeva Svetlana A.
Published: July 2021

Background. The currently observed diseases of the circulatory system getting younger, the increase in the incidence of arterial hypertension (AH) and the high mortality rate of men of working age in Russia are elements of one of the main medical and social problems. The identification of risk factors (RF) for the development of hypertension in young patients and the identification of the groups with the highest risk of cardiovascular events in their future adult life is aimed at preventing hypertension, early treatment initiation, increasing life expectancy and reducing mortality.
Aim. To study the prevalence of the main modifiable RF associated with arterial hypertension among draft age youth.
Materials and methods. The identification of RF, their qualitative, quantitative description, assessment and comparative analysis among men with normal and high blood pressure (BP) of varying degrees.
Results. In the control group without hypertension, 37.1% of the subjects did not have any RF; 48.6% of the surveyed each had one RF; 14.3% were persons with two RFs. There were no people identified with three or more RFs. In the study group with AH, 27.0% of patients did not have any RF; 37.4% of patients had one RF; 22.6% of patients with two RFs; 9.5% of patients with three RFs and 2.6% of patients had four RFs. The occurrence of each RF in the control group without hypertension and in the study group with hypertension as a whole is presented as follows respectively: overweight/obesity 37.1 and 59.1%; smoking 34.3 and 38.3%; alcohol abuse 0 and 2.6%; physical inactivity 8.4 and 12.2%; hypercholesterolemia 2.9 and 20.9%; hypertriglyceridemia 5.7 and 16.5%; hyperglycemia 5.7 and 5.2%.
Conclusion. RF is widespread in young men, regardless of BP level. More than 60% of draft age youth without hypertension have at least one RF. Among all modifiable RFs, the highest frequency of occurrence is associated with increased weight and smoking. Overweight or obesity is always found in individuals with two or more RFs. Among men with hypertension, people with obesity, low physical activity and impaired lipid metabolism are more common than among men without hypertension. Risk assessment in draft age youth presents certain difficulties. Identification and assessment of risk factors will make it possible to develop an individual program for their modification, prevention of the development of hypertension and detection of the disease in the early stages.
Drug therapy of arterial hypertension: assessment of the physicians’ basic knowledge. Final results of the PHYSTARH project
Authors: Bontsevich Roman A. , Vovk Yana R. , Gavrilova Anna A. , Kirichenko Andrey A. , Krotkova Irina F. , Kosmacheva Elena D. , Kompaniets Olga G. , Prozorova Galina G. , Nevzorova Vera A. , Martynenko Irina M. , Ketova Galina G. , Barysheva Valeriya O. , Maksimov Maxim L. , Osipova Olga A.
Published: July 2021

Background. Arterial hypertension is a multifactorial disease accompanied by an increase in systolic and/or diastolic blood pressure above the established values. Uncontrolled blood pressure can cause various complications, which will lead to either disability or death of the patient.
Aim. To assess the compliance of the level of doctors knowledge with current clinical guidelines in the treatment of arterial hypertension.
Materials and methods. Within the framework of the PHYSTARH multicenter study, we presented the results of an anonymous prospective survey to assess the level of physicians knowledge and pharmacotherapeutic preferences in the treatment of arterial hypertension.
Results. The study involved 425 physicians from 9 regions of Russia: Belgorod, Voronezh, Lipetsk, Chelyabinsk, Moscow, Krasnodar Territory, Primorye Territory, the Republic of Adygea and Tatarstan. In the course of the analysis, we revealed an insufficiently high level of the respondents knowledge in the treatment of arterial hypertension. Less than half of the respondents chose the indication of combination therapy as a therapeutic intervention in which the effectiveness of lowering blood pressure increases about 5 times more than when the dose of the original drug is doubled; correctly indicated the pharmacological group for the proposed drug (methyldopa), determined the indication for the use of aspirin in patients with hypertension, selected the optimal antihypertensive therapy for the proposed clinical situations, indicated absolutely contraindicated antihypertensive drugs in pregnancy and chronic obstructive pulmonary disease.
Conclusion. The need for additional educational activities among physicians was established to improve the quality of knowledge on the basic aspects of hypertension, because a significant number of key questions on this topic cause difficulties for respondents.
Screening method for diagnosis of pharyngolaryngeal reflux
Authors:   Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia, Ryabova Marina A. , Shumilova Natalia A. ,   Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia, Georgieva Liubov V. ,   Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia, Tishkov Artem V. ,   Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia
Published: July 2021

Pharyngolaryngeal reflux (PLR) can cause the upper respiratory tract pathology. To diagnose PLR based on complaints is rather difficult, due to the absence of typical manifestations of reflux syndrome in some cases of the disease. The use of daily impedance pH monitoring of the esophagus is not always possible due to the invasiveness and unavailability of the method. The aim of the study was to develop an affordable non-invasive method for diagnosing PLR. The study group consisted of 48 patients with PLR proven by the results of impedance pH-monitoring. The control group consisted of 20 healthy patients. The “Pharyngolaryngeal reflux index” questionnaire was developed based on the analysis of patient complaints. The questionnaire was assessed using ROC analysis. Patients who scored 5.5 points according to the results of the questionnaire with a probability of 93.2% have PLR. Thus, a method for the diagnosis of PLR has been developed, including the simultaneous comparison of the laryngoscopic signs of PLR with the highest diagnostic sensitivity (hyperemia, edema, maceration of the interarytenoid mucosa) and “Pharyngolaryngeal reflux index” questionnaire results, which allows diagnosing of PLR.
Correction of the nasal septum in children with surgical pathology of the paranasal sinuses (literature review)
Authors:   Saint Petersburg Research Institute of Ear, Throat, Nose and Speech, Saint Petersburg, Russia, Alekseenko Svetlana I. , Alekseenko Svetlana I. ,   Mechnikov North-Western State Medical University, Saint Petersburg, Russia, Alekseenko Svetlana I. ,   Rauhfus Saint Petersburg Children’s Municipal Multi-specialty Clinical Center of High Medical Technology, Saint Petersburg, Russia, Karpishchenko Sergey A. ,   Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia, Melnik Baurzhan O. ,   Rauhfus Saint Petersburg Children’s Municipal Multi-specialty Clinical Center of High Medical Technology, Saint Petersburg, Russia, Melnik Baurzhan O. ,   Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia
Published: July 2021

Diseases of a nose and paranasal sinuses are in the lead among pathology of upper respiratory tract. The incidence of chronic sinusitis in children ranges from 16 to 34%. Deviation of a nasal septum is detected in 74% of children at the age of 14 years. There are researches proving efficiency of one-stage performing septoplasty and FESS operations at adult patients. At the same time, data on efficiency and safety of carrying out onestage septum-operation and FESS at children’s age aren’t enough. Improvement of nasal breathing and providing broad access to the surgical area is a result of such interventions. It is also possible to refer decrease anesthesiology load of the child and readmission number. Carrying out low-invasive operations on structures of nose and paranasal sinuses under endoscopic control allows to reduce traumatization of a mucous membrane and improves visibility of the surgery field for the operator. Simultaneous surgical treatment of paranasal sinuses and a nasal septum deviation using methods of FESS in children is a perspective and safe method of treatment. Such surgery demands good practical skills, up-to-date equipment, correct algorithm of performing surgical intervention and also thorough observation of the patient in preoperative and postoperative periods.
Treatment and diagnostic features of odontogenic maxillary sinusitis
Authors:   Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia, Karpishchenko Sergey A. , Bolozneva Elizaveta V. ,   Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia, Karpishchenko Elena S. ,   Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia
Published: July 2021

Nowadays, the share of odontogenic maxillary sinusitis according to various authors can reach 40% among all sinusitis. The literature review of the diagnostic and treatment features of odontogenic maxillary sinusitis is done. The use of modern methods of radiation examination allows us to identify the cause of sinusitis and reveal its odontogenic nature. The main thing in the treatment of odontogenic sinusitis is the elimination of the stomatogenic cause of the disease. There are several different types of surgical treatment of maxillary sinus disease: Caldwell–Luke operation, endoscopic transnasal approach with access through the lower and/or middle nasal passage. Our clinical experience of treatment of 36 patients with odontogenic maxillary sinusitis at the ENT department. Odontogenic maxillary sinusitis does not have specific symptoms. There are no recommendations how to choose any approach according to pathology, anatomy, additional diseases etc.
The actuality of preventing influenza and pneumococcal infection during the ongoing COVID-19 pandemic
Authors:   South Ural State Medical University, Chelyabinsk, Russia, Ignatova Galina L. , Antonov Vladimir N. ,   South Ural State Medical University, Chelyabinsk, Russia
Published: July 2021

The article discusses the issues of vaccine prevention of influenza and pneumococcal infections during the ongoing pandemic of the new coronavirus infection COVID-19. Statistical data on the prevalence of these infections at the current time are provided. Co-infection can increase the symptoms of the diseases in these cases, and managing this condition is important for certain groups of patients. Respiratory viruses induce the attachment of pneumococcus, Pseudomonas aeruginosa and Hemophilus bacillus to the epithelial cells of the respiratory tract. The WHO position on influenza vaccination in the context of the COVID-19 pandemic is presented, and its main provisions are analyzed. Recommendations on the use of the main types of vaccines are given. Currently, the priority is to use 4-valent vaccines that ensure the development of the most stable immunity. In the Russian Federation, such a vaccine that meets all WHO recommendations is Ultrix Quadri, a tetravalent inactivated split influenza vaccine. The drug is a mixture of protective surface and internal antigens of influenza viruses of type A [subtypes A(H1N1) and A(H3N2)] and type B (Yamagata line and Victoria line). The use of vaccination schemes for pneumococcal infection was also discussed.
The prevalence of comorbidities and associated risk factors among Covid-19 deceased in Mizoram, India
Authors: Andrew Lalchhuanawma  , Divya Sanghi  , Lalhlimpuii Chawngthu
Published: July 2021

The WHO declaration of the novel coronavirus (Covid-19) caused by SARS-CoV-2 as a pandemic has raised serious questions and has since been a global health concern. Data on the clinical characteristics, laboratory findings of deceased covid-19 individuals are sparse. The study analyzed the clinical and laboratory profiles of Covid-19 deceased in Zoram Medical College Mizoram, India. We gathered information from the Mizoram Government Covid-19 portal and hospital medical record section. The study examined eight confirmed Covid-19 deaths out of the total nine Covid-19 fatalities reported in Mizoram as of February 14, 2021. The decedents' mean age was 62.88 (±18.659) years; among them, 87.5% were males, and blood group B was associated with half of the deceased. In Mizoram, the case fatality rate, crude death rate, and recovery rate were 0.2%, 7.27 per million, and 99.40%, respectively, with 3547 cases per million. The median length of hospital and ICU stay (between admission and death) was 15.5 and 11 days. The common presenting symptoms were fever (75%), shortness of breath (62.5%), cough/ sore throat (50%). Hypertension (62.5%) and diabetes mellitus (62.5%) were the two most prevalent comorbidities, followed by cardiovascular diseases (25%). The concurrence of hypertension and diabetes mellitus constituted 87.5%, 75% of the decedents reported the presence of at least one of the comorbidities. The two most common complications were an acute respiratory failure (87.5%) and cardiovascular complications (87.5%). Increased risk of severe Covid-19 disease increases with advanced age (>60 years), gender (male), and underlying comorbidities.
PSYCHOLINGUISTIC STUDY OF THE TOUR GUIDE'S COMMUNICATIVE STYLES (BASED ON THE GERMAN LANGUAGE EXAMPLES)
Authors: Мкртычян Светлана Викторовна , Янсон Татьяна Александровна
Published: July 2021

Обсуждаются результаты исследования коммуникативных стилей экскурсовода на материале немецкого языка; исследование включает в себя серию экспериментов: цепочечный ассоциативный, направленный ассоциативный, предварительный уточняющий пилотный опрос и эксперимент, направленный на выбор эффективных речевых стратегий.

The results of the study of the tour guide's communicative styles based on the material of the German language are discussed; the study includes a series of experiments: chain associative, directed associative, preliminary clarifying pilot survey and an experiment aimed at choosing effective speech strategies.
PERCEPTION AS A KEY COMPONENT OF IDENTIFICATION
Authors: Саркисова Элина Владиславовна
Published: July 2021

В статье рассмотрено понятие восприятия как сложного многогранного процесса, предполагающего параллельную работу тела и разума и взаимодействие внешних и внутренних факторов. Представлены различные подходы к процессу восприятия и описаны особенности как зрительного восприятия информации, так и восприятия на слух.

The article addresses the problem of perception that is considered to be a many-sided process requiring parallel functioning of body and mind and cooperarive functioning of internal and external criteria. It also outlines various approaches to both visual and auditory perception.
TERMINOLOGICAL «CHAOS» IN MEDICINE AND WAYS TO OVERCOME IT
Authors: Гордеева Людмила Константиновна
Published: July 2021

Анализируются причины «терминологического беспорядка» в медицине и попытки его преодоления. Обсуждаются некоторые принципы классификации медицинской терминологии, основанные на лингвистическом описании исследуемых единиц. Необходимость упорядочения терминов, используемых в разных сферах медицины, исследуется с позиции носителей специального медицинского знания.

The reasons for terminological «chaos» and ways to overcome it are being analyzed. Some principles of medical terminology’s classification based on the linguistic description of the studied units are being discussed. The necessity of terms’ ordering used in different spheres of medicine is viewed from the professional perspective.
IMPLICIT AND EXPLICIT FORMS OF VERBAL AGGRESSION IN POLITICAL DISCOURSE
Authors: Цветкова Ольга Дмитриевна
Published: July 2021

В статье рассматриваются различные языковые формы проявления скрытой и явной агрессии в политическом дискурсе на материале дебатов кандидатов в президенты США.

The article surveys different forms of implicit and explicit aggression in the political discourse on the material of presidential debates in the USA.
Posolskaya-type Ceramics of the Multilayered Site Ust-Khaita (Southern Angara Region)
Authors:   Irkutsk State University, Saveliev N. A. , Ulanov I. V. ,   Irkutsk State University
Published: July 2021

The article presents one of the largest collections of Posolskaya-type ceramics in the Angara region, which was found at the Ust-Khaita site. The Posolskaya-type ceramics has several unresolved problems in the field of chronology, technology, and correlation with other groups of Neolithic ceramics. In this regard, it is important to publish collections of Posolskaya ceramics from multilayered sites such as Ust-Khaita. The site locates in the middle reaches of the Belaya River on the territory of Mishelevka village. The excavations had been carried out in 2000 and the results were not fully published. The largest number of Posolskaya ceramics was found in layer 4. In addition, some of the fragments were found in layer 5 and single specimens in layers 6, 5a, and 3, which is associated with the activity of earth-moving animals and insects. In this article, we describe the Ust-Khaita’s Posolskaya ceramics and analyze its morphology, technology, and decor. In total, we examined 89 fragments from at least 18 vessels. In terms of size, the Ust-Khaita’s vessels are divided into two groups. The first includes small pots with a diameter of 12–17 cm (4 pots) and the second larger ones with a diameter of 24–36 cm (6 pots). The vessels have a simple closed shape or closed with weak profiling. All vessels have a thickening of the rim in the form of a triangular or oval molding or using an additional layer of clay. The ornament is located at the top part of the vessel. The rims of almost all vessels are decorated on the outside with impressions of a comb stamp placed directly or at an angle (in one case a zigzag from a series of such a stamp) and have a belt of round holes, which is located over the line made by tracing or using the retreat technique. Below the rim, the composition continues with horizontal carved lines, or a receding blade with a triangular working edge and ends with a series of separate pricks or triangular figures. The outer surface of the vessels is covered with impressions of a cord or ribbed scapula. Perhaps some of the vessels are smooth-walled. Posolskaya type vessels were made of ferruginous sandy clay without artificial additives by the method of zonal patchwork molding. Since there are no AMS dates for the layer 4 of Ust-Khaita, the age of the complex with the Posolakaya-type ceramics is determined based on similar 14C-dated sites with the Posolskaya ceramics in the range of ~6,7–6,3 ka cal BP.
Public bureaucracy and sustainable development in nigeria: identifying the normative challenges and the way forward
Authors: Ibeto Chinyeaka Justine Igbokwe , Kehinde Osakede O
Published: July 2021

Sustainable development and sustainability in Nigeria still remain a project far-fetched. Structural disarticulation of public bureaucracy role in sustainable development vitiates the Nigerian project. Sustainable development and sustainability are all encompassing.Within the framework of statism and over-developed state theories, an eclectic approach, the article examined the role of public bureaucracy in sustainable development and sustainability. To address the issues raised, the article utilized qualitative research approach to gain an insight into the nature and character of the Nigerian state towards sustainable development and sustainability.Subsequently, relevant sources of this research were fairly and professionally scrutinised, understood and tested with the available literature for the purpose of the research. Inter alia, it included scan-reading, comprehensive and critical reading and writing down ideas. Authoritative scholarly sources were reviewed, during a desktop study.This article argues that Nigeria is yet to understand the central concerns of sustainable development. Although, development is an ongoing project, marginal improvement being recorded in various areas of the society need to be sustained and consolidated upon over time. For Nigeria to entrench sustainable development and sustainability, government has to champion development, while corruption in both public and private sectors of the economy needs to be cured. The bureaucracy is the channel through which all these ideas and activities can be coordinated and delivered in Nigeria efficiently and effectively.
Affordances of visual representations and sense-making of science
Authors: Cheng Maurice
Published: July 2021

Visual thinking is essential in the development of science. Visual representations are also indispensable when scientists disseminate their findings. This paper discusses the ways that research studies on visual representations can inform science learning and teaching. I start by discussing the ways that drawings, charts and graphics represent their referents, and hence highlighting the affordances of these visual representations. Then I discuss how these affordances make visual representations a valuable tool to support science teaching in formal and informal contexts and, in particular, how learning with media graphics can support the learning of Nature of Science for scientific literacy.
Incidence of and factors associated with metabolic syndrome, south-east Islamic Republic of Iran
Authors: Farmanfarma Khadijeh , Ansari-Moghaddam Alireza , Kaykhaei Mahmoud , Mohammadi Mehdi , Adineh Hosein , Aliabd Hasan
Published: July 2021

Background: Metabolic syndrome is an important cause of cardiovascular disease. Mortality from cardiovascular disease is 12.82 deaths/100 000 population in Zahedan, south-east Islamic Republic of Iran. Aims: This study aimed to determine the incidence of metabolic syndrome and its predicting factors in Zahedan city. Methods: All participants without metabolic syndrome in a 2009 study in Zahedan, available in 2017, were included in this study. Metabolic syndrome was diagnosed based on the criteria of several organizations. Anthropometric indices and blood pressure were measured and blood tests were done. Age-standardized incidence of metabolic syndrome was calculated and its predictors were evaluated in a logistic regression analysis. Results: Mean age (standard deviation) of the participants was 45.46 (12.63) years in 2017. The incidence of metabolic syndrome varied from 17.21% to 27.18% depending on the criteria used and it was higher in women. High age-standardized incidence was associated with large waist circumference (55.81%) and high blood pressure (25.32%). The highest adjusted odds ratios (OR) for metabolic syndrome were for high triglycerides (OR = 23.75; 95% confidence interval (CI): 9.92–56.84%), large waist circumference (OR = 22.42; 95% CI: 9.03–55.70%), high blood pressure (OR = 16.91; 95% CI: 8.54–33.50%) and high fasting blood sugar (OR = 13.22; 95% CI: 6.74–25.94%). Waterpipe smoking, sex, low-density lipoprotein and wrist circumference were also associated with metabolic syndrome. Conclusions: The incidence of metabolic syndrome has increased in Zahedan. Effective, interventions, including to promote healthy diet, physical activity and avoidance of waterpipe smoking, are needed to control this condition.
Penerapan Model Pembelajaran Kinestetis Bagi Anak SD SLB Tunagrahita di Kota Pontianak Kalimantan Barat
Authors: Yatno Rubi , Arifin Zainal , Rajidin Rajidin
Published: July 2021

Penelitian ini bertujuan untuk Menguji pengaruh permainan bowling ceria pada anak tunagrahita SD SLB di kota pontianak. Yang  mana berdasarkan wawancara dan observasi dapat disimpulkan bahwa model aktivitas jasmani siswa tunagrahita khususnya masih kurang optimal dikarenakan kurang variasinya aktivitas jasmani yang dilakukan siswa. Adapun metode penelitian yang digunakan dalam penelitian ini menggunakan metode eksperimen dengan rancangan pre eksperimental yaitu menggunakan one group pretest dan posttest.Teknik analisis data yang digunakan dalam penelitian ini adalah analisis data deskriptif kuantitatif dengan menggunakan beberapa uji prasyarat sebelum dilakukannya uji pengaruh dari model pembelajaran tersebut. Berdasarkan hasil uji statistik variabel diperoleh nilai uji-t diperoleh thitung = 31,647. Nilai ttabel dengan taraf kepercayaan = 0,05, dk = (n-1) = 18 – 1 = 17 diperoleh nilai sebesar 2,1098. Dengan demikian thitung lebih besar dari ttabel (thitung = 31,647 > ttabel = 2,093). Berdasarkan kriteria pengujian bahwa jika thitung > ttabel pada α=0,05 dk = 17, maka dapat dinyatakan terdapat pengaruh signifikan penerapan  permainan bowling ceria terhadap kemampuan motorik siswa tunagrahita.
Pengaruh Latihan Leg Press dan Squat Thrust Terhadap Peningkatan Power Tungkai Atlet Bola Voli
Authors: Nugroho Reza Adhi , Yuliandra Rizki , Gumantan Aditya , Mahfud Imam
Published: July 2021

Penelitian ini bertujuan untuk mengetahui pengaruh latihan leg press dan squat thrust terhadap peningkatan power tungkai atlet bola voli. Metode penelitian ini adalah eksperimen dengan rancangan two gruop pretest posttest design. Sampel penelitian berjumlah 16 atlet bola voli di SMAN 1 Pringsewu yang diambil dengan teknik total sampling yaitu 100% dari jumlah populasi. Dalam penelitian ini alat ukur untuk mengukur kemampuan power tungkai menggunakan tes vertikal jump. Penelitian ini menggunakan analisis ANAVA dan taraf signifikasi α = 0,05. Hasil penelitian yang di dapatkan yakni , adanya pengaruh latihan beban leg press dan latihan squat terhadap meningkatnya power tungkai atlet bola basket, yang dibuktikan dari nilai F = 25.248 terhadap power tungkai dan nilai p = 0,002 < 0,05. Latihan dengan menggunkan metode beban leg press lebih baik dari pada menggunakan latihan dengan metode squat thrust degan selisih posttest power tungkai sebesar 1,0 atau sama dengan 8 cm. Berdasarkan hasil yang telah dikemukakan pada hasil penelitian ini bahwa terdapat interaksi yang signifikan antara metode beban ( Leg Press dan Squat Thrust ) terhadap power tungkai atlet bola voli. Hasil penelitian menunjukkan bahwa kelompok latihan leg press lebih signifikan dalam meningkatkan power tungkai atlet bola voli di bandingkan kelompok latihan Squat Thrust.
Analisis Perubahan Momentum Tubuh Bagian Atas Pada Saat Pukulan Tennis One-Handed Backhand Drive
Authors: Rusdiana Agus
Published: July 2021

Tujuan dari penelitian ini adalah menganalisis perpindahan linear dan angular momentum dari gerak tubuh bagian atas (upper extrimity) sampai perkenaan bola dengan raket pada saat melakukan pukulan backhand drive dengan satu tangan pada permainan tenis. Pukulan backhand drive adalah salah satu teknik yang paling sering digunakan dalam bermain tenis. Sangat sedikit penelitian yang menganalisis kajian terkait transfer linear momentum dan momentum rotasi dari gerak upper extrimity sampai perkenaan bola dengan raket pada saat melakukan pukulan backhand drive dengan satu tangan. Subjek dalam penelitian ini adalah pemain tenis putra yang berjumlah 12 orang (rata-rata ± SD; usia 27 ± 3.7 tahun, tinggi batang tubuh 169 ± 7.4 cm, berat batang tubuh 71.5 ± 8.3 kg). Metode yang digunakan adalah deskriptif dengan pendekatan kualitatif. Hasil penelitian ini menunjukan bahwa segmen tangan berkontribusi signifikan terhadap perubahan linear momentum (leading dan vertical direction) dan angular momentum (supination). Kesimpulan hasil penelitian ini adalah bahwa pemahaman tentang perubahan gerak kinetika, momentum dan force sangat penting dipahami pemain dan pelatih dalam upaya meningkatkan performa kualitas pukulan backhand drive dalam permainan tenis.
Memahami Faktor Penyebab Terjadinya Cedera dalam Permainan Sepakbola
Authors: Sudirman Akbar , Mahyuddin Reza , Asyhari Hasbi
Published: July 2021

Artikel ini diharapkan dapat memberi pemahaman kepada atlet sepakbola tentang faktor penyebab terjadinya cedera dalam permainan sepakbola. Sehingga atlet dapat lebih mempersiapkan diri sebelum bermain, dengan pemahaman dan persiapan yang matang maka resiko terjadinya cedera dapat diminimalisir. Metode yang digunakan adalah study literatur review artikel dengan memanfaatkan data base beberapa pengindeks jurnal, Data yang digunakan adalah data sekunder dari beberapa artikel yang telah terpublikasi. Hasil review beberapa artikel mengungkap bahwa faktor penyebab timbulnya cedera olahraga dalam permainan sepakbola: (1) Faktor dari luar, yaitu: (a) Alat olahraga: sepatu, bola. (b) Kondisi lapangan: licin, tidak rata, becek. (2) Faktor dari dalam, yaitu: (a) Faktor anatomi. Panjang tungkai yang tidak sama, arcus kaki rata, kaki cinjit, sehingga pada waktu lari akan mengganggu gerakan. (b) Latihan gerakan yang keliru misalnya:teknik shooting. (c) Adanya kelemahan otot. d) Tingkat kebugaran rendah. (3) Penggunaan yang berlebihan/overuse. Gerakan atau latihan yang berlebihan dan berulang-ulang dalam waktu relative lama/ mikro trauma dapat menyebabkan cedera. Cedera dalam permainan sepakbola baik cedera yang terjadi akibat body contact maupun nonbody contact kasus tertinggi cedera terjadi pada pergelangan kaki. Faktor kondisi fisik yang berhubungan secara signifikan dengan resiko terjadinya cedera olahraga dalam permainan sepakbola adalah power, speed, flexibility, dan agility. Faktor keterampilan teknik yang memiliki hubungan signifikan dengan resiko cedera dalam permainan sepakbola adalah teknik shooting.
Creación de un programa de Maestría con trayectoria de Investigación en Ecuador
Authors:   Universidad Nacional de Chimborazo, Molina Granja Fernando , Molina Valdiviezo Lorena Paulina ,   Universidad Nacional de Chimborazo, Paz León Hugo Humberto ,   Universidad Nacional de Chimborazo, Peñafiel Barros Geonatan Octavio ,   Universidad Nacional de Chimborazo
Published: July 2021

La realización de programas de posgrado en educación en el Ecuador es una de las necesidades más sentidas para el desarrollo armónico del sistema educativo, puesto que es durante el cuarto nivel o posgrado en el que se forman los especialistas de las diferentes áreas que un país requiere, la necesidad de promover la investigación, la formación y la capacitación es necesario para realizar estudios de carácter interdisciplinario y transdisciplinario en investigación de cualquier área del conocimiento.
Integridad de las empresas e instituciones que impulsan la Responsabilidad Social Corporativa (RSC) en México
Authors: Monroy Uribe Estefania Citlali , Alvarado López Alondra Adamary , Monroy Sánchez Perla Lizeth , Aguilar Lugo Martha Azucena , Oropeza Baena Sandra Areli , Martínez Lecuona Adriana
Published: July 2021

La Responsabilidad Social (RS) es un concepto que define una forma de actuar bajo principios éticos, alinearse con el desarrollo sostenible y apelar a la voluntad de los empresarios para innovar, producir sin contaminar e inducir buenas prácticas en la empresa para el bienestar de sus empleados y el entorno. La finalidad del trabajo es identificar si existe integridad por parte de las empresas que ostentan un distintivo de Empresa Socialmente Responsable (ESR) en México. Existen empresas que han sido sujetas a críticas por su falta de responsabilidad social. Sin embargo, el Centro Mexicano para la Filantropía (CEMEFI) les otorga un distintivo como ESR. Para lograr el objetivo de este trabajo se analizan los temas que dan sustento al problema, Responsabilidad Social (RS), Responsabilidad Social Corporativa (RSC) e integridad, así como la comparación de la actuación del CEMEFI con FORETICA, asociación española que emite una certificación a partir del año 2002. Después de presentar el análisis de algunos casos de estas empresas, se concluye que la integridad de las empresas y de las instituciones que otorgan distintivos, reconocimientos o certificaciones; es un tema que queda pendiente de seguir cuestionando y discutir académicamente.
Identificación de interacciones selectoras en estudios etológicos y de psicología comparada
Authors: Guzmán-Díaz Gelacio , Cisneros-Herrera Jesús , Montes Castro Edgar
Published: July 2021

El análisis científico de los objetos y eventos de la realidad debe partir de un análisis de características compartidas por tales objetos y eventos. En el caso particular del análisis experimental de la conducta, el estudio científico, entre otros elementos, está posibilitado por sus antecedentes históricos. En el presente escrito se analizan algunos estudios relacionados con la observación etológica y el estudio comparativo de la conducta como antecedentes históricos de la llamada función selectora de la taxonomía funcional del comportamiento propuesta por Ribes y López (1985).
Teoría de la jerarquía financiera ¿aplica en las grandes empresas mexicanas?
Authors: Sauza Avila Beatriz , González-Ramírez Jair , Pérez-Castañeda Suly , Lechuga-Canto Claudia , Cruz-Ramirez Dorie , Hernández-Bonilla Blanca E
Published: July 2021

Para toda empresa no importando su tamaño es necesario que se financie para poder seguir realizando sus operaciones, esto implica que pueda decidir si utiliza sus propios recursos para hacerlo, como por ejemplo la reinversión de utilidades o requiere de fuentes de financiamiento externas haciendo uso de instituciones financieras o muy probablemente utilice el apoyo de sus proveedores, en último de los casos a que toda grande empresa recurrirá es a la emisión de acciones para poder financiarse, con la aplicación de la teoría de la jerarquía o también llamada pecking order podemos conocer como se está financiando para su adecuada toma de decisiones y de esta manera mantener sus finanzas sanas.
Caracterización microestructural de una unión disímil (Dúplex 2202-Austenítico 201LN) realizada por el proceso de soldadura GMAW
Authors: Mendoza Gómora César , Borja-Soto Carlos Ernesto , Zuno-Silva Jorge , Ortiz-Domínguez Martín , Carpio-López Cristian Javier
Published: July 2021

La eficiencia de las uniones realizadas por procesos de soldadura están influenciadas por defectos los defectos internos que puedan estar presentes en el cordón de soldadura o bien las fases que pueden estar presentes a causa de la composición química de los materiales a soldar. En este sentido, el presente trabajo analiza mediante microscopía óptica, microscopía electrónica de barrido y análisis elemental las fases presentes en el cordón de soldadura. Los resultados mostraron que las fases que se precipitaron durante el proceso de soldadura fueron la χ y la σ, siendo éstas, junto con la segregación de elementos las causantes de la presencia de agrietamiento en caliente.
Desarrollo Local en la Era Post Covid-19
Authors: Sandoval-Vázquez Francisco R. , Bustos Aguayo José Marcos , García-Lirios Cruz
Published: July 2021

El objetivo del presente trabajo es especificar un modelo para el estudio de los efectos del cambio climático sobre la salud pública y el Desarrollo Local. Para tal propósito, se llevó a cabo un estudio documental con una muestra de fuentes indexadas con registro ISSN y DOI publicadas durante el periodo 2010 a 2021. Posteriormente, la información fue procesada en matrices de análisis de contenido a fin de poder establecer los ejes de discusión y temas de debate en la agenda investigativa. Por último, considerando la revisión de la literatura teórica, conceptual y empírica, se especificó el modelo en el que se incluyó a las variables de percepción, creencia, actitud, intención y comportamiento. En relación con el estado del conocimiento se recomienda la inclusión de variables emotivas y valorativas que permitan el contraste de hipótesis relativas a los efectos de inundaciones, sequías, incendios y desabastecimiento de recursos sobre la salud pública ambiental.
Biomarcadores en vesículas extracelulares: Una alternativa para el diagnóstico del Cáncer Colorrectal
Authors: Hernández Bedolla Marco Antonio , Alonzo Alonso Dulce Edith , Díaz Salguero Itzel Guadalupe , Reyes Uribe Emmanuel , Barajas-Espinosa Alma , Ochoa-Cortés Fernando
Published: July 2021

El cáncer colorrectal (CCR) es una enfermedad caracterizada por el crecimiento descontrolado de células en cualquiera de las cuatro porciones del colon o en el recto, es un problema de salud pública en todo el mundo. En México es el 3° cáncer con mayor incidencia y el 2° lugar con más defunciones. El principal factor de riesgo inherente para el CCR es la edad creciente. Se presentan factores de riesgo modificables y no modificables en esta patología que lleva a tener unas evidencias limitadas de su presencia.  Dentro de las opciones de diagnóstico con las que se cuentan en la actualidad encontramos opciones de pruebas en heces y exámenes visuales endoscópicos y/o radiológicos. Se ha demostrado que los biomarcadores con características de procesos biológicos, patogénicos o farmacológicos específicos son indicadores objetivos y se ha informado que mejoran el diagnóstico, el pronóstico y la terapia del CCR. En esta revisión, ilustraremos los principales biomarcadores identificados de vesículas extracelulares aisladas del CCR.
El papel de la Ética y los Valores en la enseñanza del Derecho
Authors: Lugo-Ortiz Sergio , Trejo-Hernández Robertha
Published: July 2021

En las siguientes páginas se discute el papel de la ética y los valores en la educación universitaria y en específico del programa educativo de derecho, (Formación Ética y Valoral). Se subraya que además de la naturaleza ético-moral de la educación, las universidades, como toda institución educativa pretenden impulsar una serie de valores acordes con su misión institucional y de cada uno de sus programas educativos. Por último, se propone el sentido social de la educación y los valores como una necesidad para incidir en las problemáticas sociales.
Mecanismos de transferencia de calor
Authors: Barrera Javier , Ramírez León Samuel A , Pérez Trujillo Josue A , Sánchez Angeles Esmeralda , Cruz Alvarez Agustin
Published: July 2021

En este trabajo realizamos un mapa conceptual en el que damos a conocer que es la transferencia de calor y los tres tipos de transferencia, asi cómo las leyes que rigen a cada uno de los tipos de transferencia, así como ejemplos en la vida real, ya que la transferencia de calor ocurre en muchas situaciones cotidianas, incluso  cuando vamos por la calle y nos da el rayo de sol. Además, analizamos las características de cada uno de los tipos de transferencia de calor y damos a conocer cómo podemos identificarlos y   calcularlos, dado que no solo podemos encontrar transferencia de calor en situaciones comunes, si no que podemos aplicarla a la industria nosotros como ingenieros.
Colitis nerviosa en estudiantes de medicina de la Escuela Superior de Tepeji del Río
Authors: Vargas Cano Eloisa Evelyn , González Maldonado Wendy Yadira , Rodríguez Trejo Nancy , Najera Arenas Mauro , Doniz Valdez Gustavo , SANCHEZ MARTINEZ Diana Veronica
Published: July 2021

El presente trabajo de investigación consiste en la descripción y análisis de las condiciones actuales de los estudiantes de medicina que padecen colitis nerviosa. Esto dentro de la Escuela Superior de Tepeji del Rio de primer a cuarto semestre.

El problema de investigación fue analizar si las infusiones de aloe vera son eficaces para el tratamiento de colitis nerviosa. Dicho análisis, ayudara a diseñar una alternativa de tratamiento sustituyendo fármacos por infusiones de aloe.

La investigación se realizó en base a la metodología de caso, obteniendo la información de encuestas realizadas a 136 estudiantes de medicina, de los cuales el 43.3% presento colitis nerviosa.  Los datos analizados sugieren que los estudiantes presentan diferencias en los signos y síntomas que presentan, se describen estrategias preventivas: como el promover la realización de ejercicio físico, seguir una dieta equilibrada; aunque no se dispone de evidencia científica sólida, estas intervenciones pueden mejorar los síntomas y por tanto la calidad de vida de determinados pacientes.
La Educación a Distancia y el Diseño Instruccional durante la emergencia sanitaria
Authors: Gómez Ortiz Maria del Pilar , Vazquez Dominguez Eduardo
Published: July 2021

A partir de la contingencia sanitaria provocada por el COVID – 19, la educación presencial se vio en la necesidad de ajustar el proceso de enseñanza – aprendizaje a un ambiente virtual, en donde las características y estilos de aprendizaje de los alumnos están jugando un papel trascendental y más aún el uso adecuado de la tecnología, de ahí la necesidad de retomar el desarrollo de un Diseño Instruccional (DI) que garantice  a través de fases estrechamente interrelacionadas como las establecidas por el Modelo ADDIE la implementación y eficacia de las distintas teorías pedagógicas, lo que en su conjunción permitan un aprendizaje efectivo.
Conservación Biológica: el caso de algunos cuerpos de insectos, anfibios, reptiles, aves y plantas de México
Authors: Sánchez González Arturo , Ramírez Bautista Aurelio , Martínez Falcon Ana Paola , Octavio Aguilar Pablo , Martínez Hernández Sylvia , Bravo Cadena Jessica , Galván Hernández Dulce María , Ortiz Pulido Raúl
Published: July 2021

En este trabajo se exponen diferentes puntos de vista sobre la problemática actual de la conservación de la biodiversidad en México, tomando como referencia algunos grupos de animales y plantas (insectos, anfibios, reptiles, aves y plantas). El objetivo es dar a conocer los problemas que enfrentan estos organismos ante los cambios recientes provocados por las actividades humanas y discutir si existen estrategias adecuadas y tangibles de manejo y conservación de los mismos en el país.
El Sol Blanco en la Ladera. Análisis preliminar de las pinturas rupestres de el Damie, San Juan Solís, San Agustín Tlaxiaca, Hidalgo.
Authors: Omaña Nájera Oscar
Published: July 2021

San Agustín Tlaxiaca fue un territorio de paso durante la época mesoamericana, por lo que casi no existen restos materiales que confirmen la presencia de sus antiguos pobladores., Por esta razón los conjuntos de pinturas rupestres localizados en la comunidad de San Juan Solís, el Damie y el Huarache, resultan ser dos importantes ventanas para el estudio de los pobladores de la zona en el postclásico, el entendimiento de su modo de subsistencia y sus asentamientos., Estos testimonios en las paredes rocosas, son un acercamiento al pensamiento de los grupos quienes pintaron estos sitios, además de que por los motivos plasmados se puede determinar tentativamente la filiación cultural de sus autores., Por ello los estudios que se realicen en estos sitios son de gran relevancia, puesto que amplían el panorama que tenemos sobre las inquietudes, rituales e interés, los cuales quedaron pintados para la posteridad, en una región donde se carecen de este tipo de investigaciones.
Algoritmo de compresión y descompresión de secuencias de ADN para su uso en traducción de proteínas
Authors: García-Islas Luis H. , Franco-Árcega Anilu , Fránco-Sánchez Kristell D.
Published: July 2021

La Bioinformática es una disciplina que se establece como soporte para la Biología Molecular y el estudio de genes. Es un enfoque que implementa distintas técnicas computacionales sobre datos biológicos con el objetivo de extraer información útil, para probar conocimientos existentes o incluso para crear nuevos. Sin embargo, debido a la enorme cantidad de datos y el espacio en disco, el procesamiento se vuelve complejo. Una forma de simplificar el proceso de secuencias de genes es por medio de compresión y descompresión de datos. En este artículo se propone un algoritmo que reduce el tamaño de las secuencias, sin perder información, y por lo tanto reduce la complejidad de procesamiento.
Medición y obtención de modelo de fluencia lenta en elastómeros
Authors: Amador-González Enrique , Sotomayor-del Moral Jonathan Allan , Pascual-Francisco Juan Benito , Farfán-Cabrera Leonardo Israel
Published: July 2021

En este trabajo se aplicó la técnica de correlación digital de imágenes para la medición de deformaciones unitarias en material de caucho. El material estudiando se sometió a experimentos de fluencia lenta o creep de corto plazo, con una duración de 10 minutos. Las deformaciones unitarias medidas en ese periodo de tiempo fueron graficadas y, mediante la implementación de un modelo viscoelástico, se obtuvieron las funcione de creep, con las cuales es posible predecir las deformaciones para tiempos prolongados. Se comprobó que el comportamiento de creep en el caucho se ajusta al modelo viscoelástico de Burgers. Asimismo, los resultados obtenidos demostraron que la técnica de correlación digital de imágenes es una herramienta poderosa para la evaluación de viscoelasticidad en los elastómeros.