bluuebunny/crossref_metadata_2025 huggingface dataset:
Pathogenetic justification of the use of hypohyperoxic training in the treatment and prevention of complications of the COVID-19 coronavirus infection
Authors: Tsyganova Tatyana Nikolaevna , Frolkov Valeriy Konstantinovich , Korchazhkina Natalya Borisovna
Published: June 2021

The 2019 coronavirus pandemic primarily affects lung tissue and disrupts gas exchange, leading to acute respiratory distress syndrome, systemic hypoxia, and lung damage. The search for methods of prevention and rehabilitation, especially after suffering from pneumonia caused by COVID-19, is on the agenda. Currently, it is known that the COVID-19 virus needs certain conditions from the cell membranes to enter the lung or intestinal cells: the presence of structures that allow the virus to «catch» on the cell (ACE2 receptor), the TMPRSS2 protein structure. Coronaviruses such as SARS-CoV and SARS-CoV-2 are activated by the TMPRSS2 enzyme and, therefore, inhibitors of this enzyme can block the virus. The virus uses APF2 as a receptor to enter the cell, and TMPRSS2 is required for activation of the viral S-protein. Without these structures, the COVID-19 virus cannot enter the cell. It was found that activation of the HIF-1 α-signaling pathway under moderate hypoxia would reduce ACE2 and TMPRSS2 and increase levels of ADAM17 on the alveolocyte surface and, consequently, reduce the invasiveness of SARS-CoV-2. As a result of numerous studies, the possibility of using a new technique, normobaric interval hypo-hyperoxic training, was justified. It was proved that ROS formed during hypoxia-normoxia participate in the initial stages of intracellular redox signaling, which triggers signal transmission to the cell nucleus. As a result, redox signaling leads to saturation of the cell with molecules that increase its protection from damaging effects. It is on these principles that the main provisions for creating a new technique and a new generation of hypoxicator that gives not only hypoxic, but also hyperoxic mixtures were formulated. Interval hypo-hyperoxic training as an effective non-specific method of increasing the body’s defenses is indispensable not only in the prevention of viral infection, but also in rehabilitation after viral pneumonia, as well as as a method that reduces the severity of viral infection in the event of infection.
Laser technologies in the correction of post-traumatic atrophic scars
Authors: Kurganskaya Inga Gennadievna , Klyuchareva Svetlana Viktorovna
Published: June 2021

The multifactorial genesis of collagen synthesis disorders in atrophic scars suggests the need to develop combined methods of scar tissue remodeling. Objective: to determine the therapeutic effects of various combinations of high-intensity laser therapy (HILT) in patients with traumatic atrophic scars. Methods: 34 patients were studied in two groups with developing (N = 15) and mature (N = 19) skin scars. Homogeneous photothermolysis (λ = 1,064 microns) followed by fractional photothermolysis by laser radiation (λ = 10,6 microns) was used in patients with developing scars, and homogeneous photothermolysis (λ = 1,064 microns) and planar ablative laser photodestruction (λ = 10.6 microns) of scars were applied in patients with mature scars. Dermatoscopic methods were used to assess the functional properties of the skin, morphometric analysis of scars, assessment of the quality of life and integral effectiveness of HILT in patients. Results: An improvement in the functional properties of atrophic scars was found mainly due to smoothing the borders with the surrounding skin, restoring the thickness of the epidermis by reducing the thickness of all layers, especially the spiny layer with an increase in the volume of keratinocytes of the granular layer. As a result of the course of treatment, an improvement in the quality of life indicators on the DQLI scale was revealed. The effectiveness of HILT in patients with developing scars was 81 %, with mature — 75 %. Conclusion: A comparative analysis of the dynamics of the state of developing and mature scars under the influence of various protocols of high-intensity laser therapy will allow individualizing their use in the schemes of atrophic scars correction.
Out-of-hours services and end-of-life hospital admissions: a complex intervention systematic review and narrative synthesis
Authors: Papavasiliou Evie , Hoare Sarah , Bowers Ben , Kelly Michael P , Barclay Stephen
Published: June 2021

Background

Out-of-hours (OOH) hospital admissions for patients receiving end-of-life care are a common cause of concern for patients, families, clinicians, and policymakers. It is unclear what issues, or combinations of issues, lead OOH clinicians to initiate hospital care for these patients.

Aim

To investigate the circumstances, processes, and mechanisms of UK OOH services-initiated end-of-life care hospital admissions.

Design and setting

Systematic literature review and narrative synthesis.

Method

Eight electronic databases were searched from inception to December 2019 supplemented by hand-searching of theBritish Journal of General Practice. Key search terms included: ‘out-of-hours services’, ‘hospital admissions’, and ‘end-of-life care’. Two reviewers independently screened and selected articles, and undertook quality appraisal using Gough’s Weight of Evidence framework. Data was analysed using narrative synthesis and reported following PRISMA Complex Intervention guidance.

Results

Searches identified 20 727 unique citations, 25 of which met the inclusion criteria. Few studies had a primary focus on the review questions. Admissions were instigated primarily to address clinical needs, caregiver and/or patient distress, and discontinuity or unavailability of care provision, and they were arranged by a range of OOH providers. Reported frequencies of patients receiving end-of-life care being admitted to hospital varied greatly; most evidence related to cancer patients.

Conclusion

Although OOH end-of-life care can often be readily resolved by hospital admissions, it comes with multiple challenges that seem to be widespread and systemic. Further research is therefore necessary to understand the complexities of OOH services-initiated end-of-life care hospital admissions and how the challenges underpinning such admissions might best be addressed.
Cardiovascular disease risk communication in NHS Health Checks: a qualitative video-stimulated recall interview study with practitioners
Authors: Gidlow Christopher J , Ellis Naomi J , Riley Victoria , Cowap Lisa , Crone Diane , Cottrell Elizabeth , Grogan Sarah , Chambers Ruth , Calvert Sian , Clark-Carter David
Published: June 2021

Background

NHS Health Check (NHSHC) is a national programme to identify and manage cardiovascular disease (CVD) risk. Practitioners delivering the programme should be competent in discussing CVD risk, but there is evidence of limited understanding of the recommended 10-year percentage CVD risk scores. Lifetime CVD risk calculators might improve understanding and communication of risk.

Aim

To explore practitioner understanding, perceptions, and experiences of CVD risk communication in NHSHCs when using two different CVD risk calculators.

Design & setting

Qualitative video-stimulated recall (VSR) study with NHSHC practitioners in the West Midlands.

Method

VSR interviews were conducted with practitioners who delivered NHSHCs using either the QRISK2 10-year risk calculator (n = 7) or JBS3 lifetime CVD risk calculator (n = 8). Data were analysed using reflexive thematic analysis.

Results

In total, nine healthcare assistants (HCAs) and six general practice nurses (GPNs) were interviewed. There was limited understanding and confidence of 10-year risk, which was used to guide clinical decisions through determining low-, medium-, or high-risk thresholds, rather than as a risk communication tool. Potential benefits of some JBS3 functions were evident, particularly heart age, risk manipulation, and visual presentation of risk.

Conclusion

There is a gap between the expectation and reality of practitioners’ understanding, competencies, and training in CVD risk communication for NHSHCs. Practitioners would welcome heart age and risk manipulation functions of JBS3 to promote patient understanding of CVD risk, but there is a more fundamental need for practitioner training in CVD risk communication.
La evaluación de los aprendizajes, en la dicotomía educativa presencial-virtual
Authors: Bennasar-García Miguel Israel , Estrada José Mercedes
Published: June 2021

El presente estudio es un ejercicio de reflexión teórica, enmarcado dentro de la investigación documental, y cuyo objetivo principal es analizar la evaluación de los aprendizajes en los escenarios presenciales y virtuales, donde se escenifican los procesos educativos en la actualidad. El método utilizado es el análisis crítico que deviene del discernimiento necesario que se realiza. El alcance de la investigación fue debatir y revisar las posibilidades teóricas de las actividades educativas y la evaluación de los logros de los estudiantes. Algunas conclusiones importantes: 1) los procesos educativos en la dicotomía presencial-virtual, es una realidad que impacta, los procesos de evaluación, en función de los resultados y evidencias mostradas por los estudiantes, 2) el uso de herramientas tecnológicas, se constituye en una posibilidad innovadora y versátil, para la evaluación de los aprendizajes, en los escenarios educativos virtuales.
Lorsque l’enfant paraît … malade
Authors: Cadelli Danielle
Published: June 2021

The most relevant tablet published up today concerning baby’s diseases is the fortieth of the medical omen series (Labat TDP). It raises many questions and in particular : what kind of dysfunctions motivate a «consultation» for a child ? How does the exorcist look at a child, and how does he try to conform himself to his young patient ? What image does this tablet suggest about infantile pathology ? In the present study these questions are addressed to by grouping together the main consultation reasons based on their common symptomatology.
Le pythagorisme d’Italie du sud vu par Tite-Live
Authors: Mahé Mathilde
Published: June 2021

The beginning of Pythagorean influence in Rome is quite difficult to trace precisely, although it is nowadays deemed to date from the IVth century B. C. Livy’s testimony sheds scarce fight on the subject, as it mentions only twice Pythagoreanism. However, Livy takes a firm stand against the implausibifity of Numa being Pythagoras’ disciple and he denounces the fabrication of the alleged “Numa books” found in 181. This very insistence provides indirect evidence of how early and debated Pythagorean influence was in Rome. On the other hand, Livy’s own description of Samnites, in the first Decade, seems to display some marks of a Pythagorean influence.
Le «Grand Dieu» d’Histria
Authors: Suceveanu Alexandru
Published: June 2021

Because it is impossible to accept the identification of the θεός Μέγας from Histria, mentioned on the architrave of a doric temple (III century BC), with the θεός Μέγας Δερξελάτης, attested only at Odessos in the Roman period, it is more probable that the Histrian divinity represents either Helios or Sarapis, perhaps already associated.
Inscriptions de Kadyanda
Authors: Jacquemin Anne , Morant Marie-José
Published: June 2021

Publication de trois inscriptions inédites et lacunaires de Kadyanda (Lycie). La première, en cinq fragments, appartient à une base érigée en l’honneur d’un prêtre de Sérapis, originaire de la ville, mais dont le nom et la carrière manquent. Dans la seconde, un particulier, dont le nom a disparu, fait une donation à la cité, correspondant au revenu d’une terre. La troisième est un règlement cultuel instaurant divers banquets en l’honneur de différentes divinités.
Une outre outrée : parodie et jeu iconographique à propos d’une coupe de Leipzig
Authors: Mitchell Alexandre Guillaume
Published: June 2021

The interest of this paper lies in the unusual scene depicted on a tondo of a cup in Leipzig : a satyr is tearing apart a wine-skin. After a careful study of the picture and its comparison with other vases it seems that not only does this cup present an amusing exaggeration of a satyr’s gluttonny but also a parody of a dionysiac religious practice, the sparagmos.
Statistical Description of Experiments on the Simulation of Cosmonauts’ Professional Activity Before and After Space Missions on the ISS.
Authors: Kryuchkov B.I. , Kondratyev A.S.
Published: June 2021

The paper considers ways and methodical techniques for the statistical description of experiments performed by cosmonauts before and after their mission on the ISS and presents those that are best suited for evaluating operator qualities of a cosmonaut. They were selected from a great number of available methods for the statistical processing of experimental results. They are obvious and can be applied for both theoretical and practical purposes. There are examples of calculations and interpretation of various indicators obtained in real experiments.
Application of Interactive Video Games as Rehabilitation Tools to Improve Postural Control and Risk of Falls in Prefrail Older Adults
Authors: Alhasan Hammad S. , Wheeler Patrick C. , Fong Daniel T. P.
Published: June 2021

The purpose of this study was to examine whether interactive video game (IVG) training is an effective way to improve postural control outcomes and decrease the risk of falls. A convenience sample of 12 prefrail older adults were recruited and divided into two groups: intervention group performed IVG training for 40 minutes, twice per week, for a total of 16 sessions. The control group received no intervention and continued their usual activity. Outcome measures were centre of pressure (COP), mean velocity, sway area, and sway path. Secondary outcomes were Berg Balance Scale, Timed Up and Go (TUG), Falls Efficacy Scale International (FES-I), and Activities-Specific Balance Confidence (ABC). Assessment was conducted with preintervention (week zero) and postintervention (week eight). The intervention group showed significant improvement in mean velocity, sway area, Berg Balance Scale, and TUG (p<0.01) compared to the control group. However, no significant improvement was observed for sway path (p=0.35), FES-I (p=0.383), and ABC (p=0.283). This study showed that IVG training led to significant improvements in postural control but not for risk of falls.
ПЕРЕДУМОВИ ЗАПРОВАДЖЕННЯ КОМПЕТЕНТНІСНОГО ПІДХОДУ ДО ПІДГОТОВКИ ФАХІВЦІВ У ВІТЧИЗНЯНІЙ ВИЩІЙ ШКОЛІ (НА МАТЕРІАЛАХ ПЕРІОДИЧНИХ ВИДАНЬ 80 – 90-Х РР. ХХ СТ.)
Authors: Друганова О. М. , Білик В. М. , Ялліна В. Л.
Published: June 2021

Актуальність дослідження зумовлена недостатнім висвітленням передумов запровадження компетентнісного підходу в підготовку кваліфікованих спеціалістів у вітчизняній системі вищої освіти України. Метою публікації є аналіз теоретичних та практичних напрацювань вітчизняної науково-педагогічної громадськості щодо підготовки нової генерації компетентнісних фахівців, оприлюднених на сторінках періодичних видань 80 – 90-х рр. ХХ століття.

Установлено, що процеси, що відбувалися у системі вищої та спеціальної професійної освіти в Україні в середині 80-х – на початку 90-х років ХХ ст., сприяли пожвавленню інтересу вітчизняної педагогічної громадськості до пошуку шляхів вдосконалення підготовки фахівців, здатних кваліфіковано виконувати свої обов’язки після закінчення навчання в закладах вищої та спеціальної професійної підготовки. Напрацювання науковців, викладачів були оприлюднені на сторінках часописів, що видавалися у ті часи, зокрема в журналі «Вестник высшей школы». Серед них: критика діючих і розробка нових методологічних підходів, наукових моделей підготовки кваліфікованих спеціалістів;удосконалення змісту навчальних програм; збільшення обсягу активних методів, наукової роботи, що посилюють пізнавальну активність й пошукову діяльність студентів тощо.

Доведено, що передвісниками запровадження компетентнісного підходу всистему вищої освіти України, стали: незадоволення якістю підготовки майбутніх фахівців із різних галузей, що набуло особливої гостроти в середині 80-х – на початку 90-х рр. ХХ ст.; невтомний пошук та розробка нових методологічних спрямувань до вирішенняпроблеми підвищення якості вищої професійної освіти; ліквідація розриву між теоретичним та практичним аспектами підготовки фахівців; акцентування уваги на важливості зв’язку в освітній галузі та сфері праці.
ПРОФАЙЛІНГ ОСОБИСТОСТІ: ЧИ Є ЙОМУ МІСЦЕ В СУЧАСНІЙ ПЕДАГОГІЧНІЙ НАУЦІ?
Authors: Леонтьєва І. В.
Published: June 2021

У статті проаналізовано методологічні основи наукового розуміння предмету профайлінгу, його понятійно-категоріальний апарат, висвітлено ґенезу та основні напрями розвитку профайлінгу, зроблено спробу з’ясувати місце і роль профайлінгу в педагогічній теорії та практиці. Науковий пошук здійснювався з використанням комплексу методів: загальнонаукових – аналітичний, ретроспективний та порівняльний аналіз наукової літератури, – для з’ясування природи досліджуваного феномену; хронологічний – для розгляду явища у динаміці; термінологічний аналіз – для уточнення базових понять дослідження; узагальнення та систематизація наявного досвіду з зазначеної проблеми – для формулювання власних поглядів на місце і роль профайлінгу у сучасній педагогіці.

Вивчення довідникової літератури та наукових публікацій дозволило, у першу чергу, встановити відсутність єдиного науково обґрунтованого визначення поняття «профайлінг» та значне розмаїття підходів сучасних дослідників до його категоризації, що пояснюємо, з одного боку, малодослідженістю явища у вітчизняному науковому просторі, та, з іншого боку, складністю отримання вірогідних верифікованих даних. Нами було запропоновано власне розуміння понять: профайлінг ми розглядаємо як певний комплекс взаємопов’язаних діагностичних процедур, що використовується для складання психологічного портрету людини з наступною типологізацією її особистості та поведінки, а «педагогічний профайлінг» як комплекс взаємопов’язаних діагностичних процедур, що використовується в освітньому процесі для складання психологічного портрету здобувача освіти з метою прогнозування його академічної поведінки та подальшої професійної діяльності. Дискусійними залишилися питання щодо: рівня науковості цього знання; вимог до рівня знань й умінь профайлерів, їх підготовки; відсутності чіткого та уніфікованого поділу особистостей людей на типи, складності у створенні їх профілю; можливостей опертя на теорію особистостей О. Лазурського у вироблені принципів та підходів педагогічної профілізації особистості.
Perencanaan Sistem Pemanfaatan Air Hujan sebagai Air Siap Minum di Kantor Dinas Pendidikan Provinsi DKI Jakarta
Authors: Purnomo Ilham Tri , Alfarisi M. Zaky , Sukmono Mutioro
Published: June 2021

Curah hujan yang tinggi di Jakarta merupakan potensi yang luar biasa dan perlu dimanfaatkan. Pemanfaatan air hujan menjadi air siap minum di Gedung Dinas Pendidikan Provinsi DKI Jakarta merupakan sebuah terobosan penerapan konsep bangunan green building di daerah Ibukota DKI Jakarta. Perencanaan diawali dengan menghitung kebutuhan air minum untuk karyawan di kantor dengan kebutuhan air minum sebanyak 480 liter/hari atau 132.480 liter/tahun. Air hujan difilter dua kali untuk memenuhi standar air minum, sehingga air dapat dikonsumsi. Eksisting raw water tank digunakan untuk menampung air baku hasil filter awal (pretreatment). Sistem pengaliran airnya menggunakan sistem gabungan, air dipompakan dari bak penampung menuju rooftank atau reservoir dengan kapasitas volume sebesar 2550 m3, kemudian air didistribusikan ke lokasi tempat air minum. Pemilihan filter akhir (treatment) dipilih dari perbandingan antara sistem reverses osmosis, sistem depot air minum, dengan sistem dispenser (galon) dan dihasilkan metode reverse osmosis lebih baik dari segi kualitas air serta menguntungkan dari segi ekonomis. Pada tahun ke-2 modal awal yang telah dikeluarkan pada tahun pertama telah kembali. Kemudian pada tahun berikutnya penghematan biaya meningkat. Dibutuhkan biaya keseluruhan pelaksanaan sebesar Rp. 496.636.000,00.

Kata Kunci: air hujan, air siap minum, reverse osmosis, water treatment
Kinerja Pelat Beton Komposit Floor Deck Terhadap Lentur
Authors: Fatharani M. Fahri , Yulianto P. Krisologus
Published: June 2021

Penggunaan lembaran baja gelombang atau yang disebut dengan floor deck dalam dunia konstruksi berkembang dengan pesat. Salah satu kelebihan yang dimiliki floor deck selain bahan yang ringan dan metode kerja yang mudah adalah adanya embossment atau profil yang timbul pada permukaan floor deck hal ini bertujuan untuk mengurangi slip yang terjadi antara beton dengan floor deck. Pada penelitian ini bertujuan untuk mengetahui lendutan, regangan dan slip yang terjadi pada beton komposit akibat pembebanan statis. Benda uji yang digunakan dalam penelitian ini berjumlah 3 buah model pelat lantai dengan ukuran 1800 x 500 x 120 mm dengan mutu beton K-300 serta menggunakan floor deck setebal 0,75 mm berjenis floor deck dengan nama Di Deck. Pengujian dilakukan dengan skema pembebanan three point loads dengan kapasitas alat 100 KN. Deteksi respon akibat beban dalam pengujian menggunakan potensiometer sebagai pendeteksi defleksi yang terjadi dan strain gauge digunakan untuk mendeteksi regangan yang terjadi pada beton, steel deck dan wiremesh. Analisis yang dilakukan berdasarkan metode American Standard Institute/Steel Deck Institute C-2017. Hasil pengujian menunjukan bahwa lendutan maksimum yang terjadi sebesar 35 mm dengan slip maksimal mencapai 24,64 mm. Regangan yang terjadi maksimum terjadi pada tengah bentang untuk regangan beton mencapai  44,3 mikron.
Arqueología histórica de la conquista espiritual: las Misiones Jesuíticas en los Valles Calchaquíes
Authors:   , Iglesias María Teresa Lourdes
Published: June 2021

En este trabajo se presentan los resultados obtenidos en el curso de las investigaciones realizadas entre los años 2006 y 2010 en el sector medio de los Valles Calchaquíes (provincia de Salta), en el departamento de San Carlos. Si bien la región ha sido explorada con anterioridad por otros investigadores, la información arqueológica disponible para el sector y periodo temporal en estudio era escasa y fragmentaria. El objetivo del trabajo desarrollado fue identificar y caracterizar la ocupación del espacio del sitio San Carlos de Tucumanahao por sacerdotes de la Compañía de Jesús durante el siglo XVII como parte del proceso de evangelización de la región. Se buscó asimismo identificar evidencia que diera cuenta de la apropiación y reutilización del espacio de un antiguo mochadero calchaquí como templo católico, partiendo de la hipótesis de que la elección del espacio por parte de los jesuitas derivó del reconocimiento de su carácter de lugar sagrado para las poblaciones locales. La Tesis se organiza en siete capítulos. En los dos primeros se resume y analiza la información arqueológica, histórica y ambiental producida por otros investigadores para la región. En el Capítulo 3 se presentan las particularidades de la ocupación de la región por parte de la Compañía de Jesús y en el Capítulo 4 se detalla el proceso de captación religiosa de la población nativa en simultáneo con el de extirpación de idolatrías. El Capítulo 5 está dedicado a la caracterización y estudio de la evidencia arquitectónica existente en el sitio; se detalla la intervención arqueológica realizada y se da cuenta de los hallazgos, a la vez que se proponen inferencias acerca de las actividades realizadas en el lugar en sus diferentes momentos de uso. En el Capítulo 6 se realiza la caracterización y análisis del registro material asociado a las ruinas. En el Capítulo 7 se integra la información de todo el trabajo poniendo énfasis en los procesos históricos involucrados en su selección como lugar de implantación del templo de San Carlos de Tucumanahao; por último, se presenta una evaluación crítica de los resultados obtenidos y se da cuenta de las consideraciones finales de la investigación.
Green economy and its future
Authors:   M.Phil Student, Department of Economics, Minhaj University Lahore, Lahore, Pakistan, ul Mustafa Atta , Afzal Haleema ,   M.Phil Student, Department of Economics, Minhaj University Lahore, Lahore, Pakistan, Zahoor Zunaira ,   M.Phil Student, Department of Economics, Minhaj University Lahore, Lahore, Pakistan
Published: June 2021

Purpose: This paper tries to find out the current progress of subjective developed and developing countries regarding green economy development. Research Methodology: This paper uses a graphical radar approach to show countries' overall performance toward the green economy. Results: This paper concluded that developed countries are ahead of developing in terms of current health expenditure, large forest area and tons of national parks. However, they are on the same page in terms of pollution, whether it is air or solid. Limitations: Several elements restrict this study. The study is carried out in chosen underdeveloped countries and developed ones. The position of the countries is therefore restricted. Consequently, the results and outputs may not apply to geographical sites. Because of unavailability, this study sample may not be sufficient. Contribution: This study will benefit both developed and developing countries by providing a clear understanding and scenario about the green economy, well-being, and green infrastructure. The findings of this study will be beneficial to institutions, researchers, politicians, the government, and others. Governments and government agencies can plan and promote their strategies and policies to understand green infrastructure and its impact on human health clearly. This study further extends the literature on the green economy and provides a new way of measuring it through its different components. Furthermore, this study can help explain where we stand right now and where we should set sail to.
Impact Strength of Ferrocement Panel under Low Velocity Impact Loading
Authors: Gaidhankar Darshan G. , Naqshbandi Mohammad Omid , Kulkarni M. S.
Published: June 2021

The capability to absorb energy, often called as
toughness, is of importance in actual service conditions of mesh
reinforced composites, when they may be subjected to static,
dynamic and fatigue loads. Toughness evaluated under impact
loads is the impact strength. The toughness of materials are
determined by two methods, (i) by measuring deformation under
impact load, (ii) by determining energy adsorption capacity of
materials under impact load. Several methods were used to
investigate to determining toughness of materials. In this research
work, drop weight impact test were used. The present
experimental work describes testing of flat ferrocement panels
with different number of layer steel mesh as well as enhancement
of panels with steel fiber. The main purpose of this study is to
investigate the effect of using different number of wire mesh layer
on the flexural strength and impact strength and also effect of
varying thickness of panels on the energy absorption of
ferrocement panels. The experimental work includes preparation
of ferrocement panels reinforced with welded square mesh, woven
square mesh with and without hooked steel fibers The ferrocement
panels of different sizes were prepared and tested for flexural
strength under the two point loading as well as drop weight for
impact testing. It is expected that as the mesh layers will be
increased the energy absorption capacity of the panel should be
increased and the also its effect should be seen for addition of
hooked steel fibers.
Development of a Notification System for Sending Assignment using Internet of Things
Technology
Authors: Songneam Nattapong
Published: June 2021

The problem with submitting assignments to teachers
is students submit the assignments to teacher, there are a lot of
assignments submission per day to teacher, but sometime students
cannot hand in their assignment to teacher because teacher teach
other section, so teacher cannot acknowledge student submission.
According to the problem, researcher has been working on this
research. The purposes of the research were to: 1) design the
notification system for sending the assignment using Internet of
Things technology, 2) develop devices for submitting the
assignment and notifying submission information via LINE
application using Internet of Things technology, and 3) evaluate
user satisfaction in using the notification system for sending the
assignment using Internet of Things technology. The population
is students and teachers in Phranakhon Rajabhat University. The
sample group consisted of 50 people using the purposive sampling.
The research instruments were: 1) the notification system for
sending the assignment using Internet of Things technology, and
2) the assessment form for user satisfaction in using the
notification system for sending the assignment using Internet of
Things technology. The results of the research showed that the
system functions are working properly. The evaluation consisted
of four parts: 1) the system designing had good level (
x
=4.12)
and the standard deviation was 0.48, 2) the system usability had
very good level (
x
=4.52) and the standard deviation was 0.22, 3)
the system benefit had very good level (
x
=4.68) and the standard
deviation was 0.38, and 4) the system overview had good level
(
x
=4.38) and the standard deviation was 0.56. The results of four
parts from the evaluation showed that the system was effective.
General Description of Hydrogen Sulfide Mineral Waters on the Left Bank of the Alazani River
Authors:   Georgian Technical University, Mardashova Marine , Miqava Tamar ,   Georgian Technical University
Published: June 2021

The study object is located in the main hydrographic unit of Shida Kakheti - on the left bank of Alazani river, along the southern slope of the Greater Caucasus and includes a strip starting from the village of Shakriani (Telavi district), ending with the regional center Lagodekhi (Lagodekhi gorge, left tributary of the Alazani river). Within this zone, hydrogen sulfide (H2S) mineral springs are prevalent. Besides, these waters are opened by exploratory - hydrogeological wells. Among these springs, "Torghva Bath" and "Lagodekhi Bath" are especially popular among the local population. The first of these is located in the upper reaches of the Story Valley, and the second - in Lagodekhi gorge, 7 km away from the settlement. The mineral springs "Muni Tsakaro" and "Mkrali Waters" are also important for their healing properties. Based on the analysis of theoretical and field materials, Kakheti hydrogen sulfide waters are characterized in detail and possibly their use for resort purposes.
Geochemical Conditions of the Origin of Hydrogen Sulfide Mineral Waters on the Left Bank of the Alazani River
Authors:   Georgian Technical University, Mardashova Marine , Dzadzamia Tinatin ,   Institute of Hydrogeology and Engineering Geology, Miqava Tamar ,   Georgian Technical University
Published: June 2021

Based on the description of the geological structure and hydrogeological conditions of the area in question, there is an opinion about the formation of hydrogen sulfide in groundwater. However, this view differs from the classical theory of sulfate reduction. It is substantiated that the production of hydrogen sulfide in groundwater due to the action of sulfate bacteria takes place not only in the recovery environment, but also in the oxidation zone. The validity of this view is confirmed by the analysis of deep hydrogeological wells and field survey data. Existence of hydrogen sulfide mineral springs within Kakheti is related to carbonate flysch. Their formation, circulation, including natural solutions is entirely in the form of carbonate flysch and is probably the origin of the formation of hydrogen sulfide healing waters. In addition to the mineral springs of Kakheti, the wide prospects of practical use of these waters are discussed, which is related to the picturesque nature and excellent climatic conditions of the area, which provides a great opportunity for resort-medical construction in the Kakheti region.
New Unloading Possibilities of Gas Turbine Combined Cycle Power Generating Units
Authors:   Georgian Technical University, Mikaishvili Temur , Chagmelashvili Nino ,   Georgian Technical University
Published: June 2021

The determining factor for the efficient operation of electrical systems is their stability. To ensure stability, it is important to establish links between neighboring electrical systems, enhance the capacity of overloading and unloading power plants, improving the flexibility of power plants, etc. For electrical systems with high autonomy, it is also important to solve the problems of power control by the installations of the system itself, including the combined cycle power units, the main purpose of which is to cover the base load of the grid. The studies carried out by the authors of the article have shown that the tasks of regulating the load of electric power systems can be solved by using power units of a gas turbine combined cycle. In order to achieve this, it is required to identify and realize deep unloading capabilities of such power generating units. In standard conditions the combined cycle power generating units are utilized for covering base loads, and their participation in a daily regulation of the grid load is not considered. However, the concept of the combined power control method suggested by the authors of this article involves combination of quantitative and qualitative regulation methods of the gas turbine component which significantly expands the unloading range of such power generating units and increases their engagement in regulating the power system loads.
Local Names of Wild Grapevine in Georgia and Its Ethnobotanical Use
Authors:   Georgian Technical University, Kikilashvili Shengeli
Published: June 2021

Wild grapevine Vitis vinifera subsp. sylvestris (C.C.Gmel.) Hegi is a typical plant of Georgian flora, spread in our country. Consequently, a numerous number of local synonym names of this plant are available in different historical-ethnographic provinces of Georgia. Among these names ‘Krikina’, ‘Babilo’, ‘Mortskhula’, ‘Brdzghuamli’ and ‘Dzghvamli’ are more spread, having different spelling variations. The great contrubution of wild grape is that it, as an ancestor of cultivated grapevine, made the basis of grape breeding in Georgia and is a distant relative of our varieties. Besides, as it was demonstrated by the ethnobotanical research, due to long period present in the forests of Georgia the local people used this plant as a food (grape, pickles), a beverage (young fermented wine ‘Machari’, wine, grappa), a construction material (buildings, door for a church, breedge), a tool for washing Qvevri, a pollinator for grape cultivars, a honey plant, a rootstock, a planting material for vineyards.
Security in Company Management
Authors:   Georgian Technical University, Otinashvili Ramaz
Published: June 2021

To neutralize the danger associated with business management there is a special security service in the management system of successful companies the structure of which depends on the nature and scale of the business. A medium-sized security service consists of four structural divisions: 1. Security; 2. Operative; 3. Analytical; 4. Technical. In each, depending on the specifics of the activity , up to 1 or 10 employees can be employed. Every business has its general and specific challenges. The main challenge still comes from direct competitors. Rivalry often transcends civilized boundaries and escalates into physical or other confrontation, especially if there is a new "player" in the segment. In the advanced countries of the West, in addition to state security institutions, there are private detective and detective organizations, news agencies, studying scientific and consulting centers, which provide various services on a fee-for-service basis. Coordination of state law enforcement agencies and private security structures is sophisticated. There is created a special body, if necessary and it harmonizes their activities. It would be nice to transfer this practice to Georgian conditions.
Deep Meta-Learning Energy-Aware Path Planner for Unmanned Ground Vehicles in Unknown Terrains
Authors: Visca Marco
Published: June 2021

This paper presents an adaptive energy-aware prediction and planning framework for vehicles navigating over terrains with varying and unknown properties. A novel feature of the method is the use of a deep meta-learning framework to learn a prior energy model, which can efficiently adapt to the local terrain conditions based on small quantities of exteroceptive and proprioceptive data. A meta-adaptive heuristic function is also proposed for the integration of the energy model into an A* path planner. The performance of the proposed approach is assessed in a 3D-body dynamic simulator over several typologies of deformable terrains, and compared with alternative machine learning solutions. We provide evidence of the advantages of the proposed method to adapt to unforeseen terrain conditions, thereby yielding more informed estimations and energy-efficient paths, when navigating on unknown terrains.
Submitted for revision to IEEE Transaction on Cybernetics.
A Photogenerated Silicon Plasma Waveguide Switch and Variable Attenuator for Millimeter-Wave Applications
Authors: Jones Thomas , Fisher Alden , Barlage Douglas W. , Peroulis Dimitrios
Published: June 2021

This paper reports the design, fabrication, and measurement of a millimeter-wave solid-state ?pi-match waveguide switch using bulk silicon micromachining. A photogenerated plasma within a silicon post is utilized as the switching element within the waveguide channel. Not only does this isolate the switch bias network from the RF signal path, but allows for tuning of the OFF-state isolation with increasing optical power for application as a variable attenuator. A measured OFF-state isolation greater than 25 dB up to 40 GHz is reported, with a measured extracted ON-state insertion loss of 0.52 dB at 35 GHz, and less than 0.88 dB across the entire band from 30-40 GHz. The proposed switch illustrates the significant potential for photogenerated silicon plasma switching of high-performance bulk micromachined millimeter-wave waveguides.
Joint 3-D Positioning and Power Allocation for UAV Relay Aided by Geographic Information
Authors: Yi Pengfei , Zhu Liang , Zhu Lipeng , Xiao Zhenyu , Geng Xiangshuai
Published: June 2021

In this paper, we study to employ geographic information to address the blockage problem of air-to-ground links between UAV and terrestrial nodes. In particular, a UAV relay is deployed to establish communication links from a ground base station to multiple ground users. To improve communication capacity, we fifirst model the blockage effect caused by buildings according to the three-dimensional (3-D) geographic information. Then, an optimization problem is formulated to maximize the minimum capacity among users by jointly optimizing the 3-D position and power allocation of the UAV relay, under the constraints of link capacity, maximum transmit power, and blockage. To solve this complex non-convex problem, a two-loop optimization framework is developed based on Lagrangian relaxation. The outer-loop aims to obtain proper Lagrangian multipliers to ensure the solution of the Lagrangian problem converge to the tightest upper bound on the original problem. The inner-loop solves the Lagrangian problem by applying the block coordinate descent (BCD) and successive convex approximation (SCA) techniques, where UAV 3-D positioning and power allocation are alternately optimized in each iteration. Simulation results confifirm that the proposed solution signifificantly outperforms two benchmark schemes and achieves a performance close to the upper bound on the UAV relay system.
Technological design of the cutting
head for turning cylinders
Authors: Boriskin O.I. , Nuzhdin G.A. , Yamnikov A.S.
Published: June 2021

The design of the cutting unit with high adaptability was developed. Separately installed inserts are used to base cutting
plates in radial direction. This simplifies the repair level and the whole range of technological operations and organizational
actions during the restoration of working capacity.
Design and calculation of mechanical toothed
hopper feeding devices with a ring orientator
Authors: Preys V.V. , Khachaturian A.V.
Published: June 2021

The designs of mechanical toothed hopper feeding devices with an ring orientator for axisymmetric parts-rotation
bodies with asymmetric ends are considered. Мathematical dependencies are given that allow calculating their actual
productivity at the design stage.
Features of geometric design of planetary rotary
hydraulic machines with satellite stands
Authors: Fadyushin D.V. , Volkov G.Yu.
Published: June 2021

А method of geometric calculation of a new type of planetary rotary hydraulic machines (PRGM) with satellite stands is
developed. The method includes the steps of: 1) calculation of the initial round-link mechanism; 2) calculation of non-round
links of the PRGM with outstretches; 3) construction and integration of three-dimensional design system COMPAS-3D
fragments of crenellated crowns corresponding to the phases of abutments and lifting-lowering satellites; 4) correction of
the toothed contours to eliminate the phenomenon of mismatch of satellite centers with the points of intersection of the
trajectories of these centers in their movement relative to the rotor and stator. PRGM with satellite stands are designed to
operate as vacuum pumps, compressors and pneumatic motors.
Tribological
properties of structural alloys for the heat exchange equipment parts subjected
to fretting
Authors: Marchenko E.A. , Khrushchov M.M. , Kaplunov S.M. , Panov V.A.
Published: June 2021

Trobological characteristics of sliding friction in stainless steel and titanium alloys in dry and water lubricated conditions
have been determined. The character of the coefficient of friction variation with load and the duration of tests have
confi rmed the prevailing wear mechanism in these materials to be frictional fatigue fracture that in the case of titanium
alloys is accompanied with adhesive interaction and plastic plowing. The frictional fatigue curves built in a result of this
investigation make possible to estimate the materials tribological longevity.
Scissor car lift design optimization
Authors: Samarkin A.I. , Dementiev A.M. , Dmitriyev S.I. , Samarkina E.I. , Evgenyeva E.A.
Published: June 2021

The problem of the optimal application and load of the scissor lift drive is considered.
Sztuka, teatralność, ponowoczesność: O książce Agnieszki Sosnowskiej
Authors: Salwa Mateusz
Published: June 2021

Artykuł stanowi prezentację książki Agnieszki Sosnowskiej Sztuka znikania: Teatralność w czasach ponowoczesnych (Kraków 2019), poświęconej zagadnieniu teatralnego charakteru ponowoczesnej rzeczywistości kulturowej i społecznej. Sosnowska zakłada, że kategorie teatru, teatralności i teatralizacji stanowią narzędzia przydatne w analizach i interpretacjach ponowoczesnej kondycji ludzkiej, a zarazem wskazuje, że to rzeczywistość pozateatralna stanowi najwłaściwszy obszar refleksji nad teatralnością. Analizuje wybrane prace i zjawiska artystycznn, w których dostrzega wyznacznik steatralizowanej rzeczywistości ponowoczesnej, jakim jest dla niej zanik rozmaitych przeświadczeń determinujących nowoczesny stosunek do idei podmiotu, świata i sztuki: amerykański minimalizm, twórczość brazylijskiego artysty Hélia Oiticica, pracownia Andy’ego Warhola The Factory i spektakl Krystiana Lupy Factory 2, ambalaże Tadeusza Kantora oraz projekt Christiana Boltanskiego The Life of C.B. W recenzji postawione zostały prowokowane przez książkę pytania, które wiążą się m.in. ze sposobem ujęcia tytułowej tematyki, zasadzającym się na niedookreśleniu pojęcia teatralności, wykorzystaniu bardzo określonego rozumienia ponowoczesności oraz nie całkiem przemyślanym połączeniu perspektywy historycznej z filozoficzną.
The Impact of Climate Change Coverage on Public Adherence towards Health Threat: An Empirical Validation of the Health Belief Model
Authors: Moneeba Iftikhar  , Dr. Muhammad Yousaf
Published: June 2021

Owing to the emerging challenge of smog and the controversies over its causes and solution, the current study seeks to find out the influence of media messages on health-related behavior and the mediating role of the threat perception and perceived benefits towards health-related behaviors in Pakistan. A cross-sectional research design vis-à-vis survey method was used to investigate the influence of media, perceived threat, and perceived benefits on the health-related behaviors of the public. For this purpose, a survey was conducted in Lahore (including urban, peri-urban areas) using a close-ended questionnaire. A sample of 232 respondents was obtained. Data were analyzed Smart with PLS software to examine the media influence on smog-related health behavior. The findings indicated that media positively influence the smog-related health behavior of the public. It was found that the relationship between media and smog-related health behavior is interceded by perceived benefits and perceived threats. Furthermore, perceived threats were found to be a stronger predictor in determining the media and smog-related health behaviors. The implications of the findings are discussed.
Phthriasis Palpebrarum Simulating Blepharitis and Eczema in a Child
Authors: Tomar Mandeep
Published: June 2021

Phthiriasis palpebrarum is an eyelid infestation which is caused by Phthiriasis pubis, also known as crab louse [1]. These lice are primarily found in pubic hair but can also present on the hair of the abdomen, thighs and the axilla. Eyebrows and eyelashes infestation may occasionally be found [2]. Infestation may be found in any hair-bearing area and lice may be transferred from one of the hairy site to another area [3]. Primarily, routes of infestation are interaction of parent with child or through sexual contact, but transfer may occur through fomite borne route also
Development and Validation of a Mobile Visual Acuity Examination App for Universal Use, Including Remote and Rural Regions
Authors: Govande Soham V
Published: June 2021

Background: Visual refractive errors are projected to rise in the coming decades worldwide, especially in remote and rural regions. To combat this, smartphone visual acuity testing apps may allow for the early detection of refractive errors thanks to their low cost and wide availability. Hence, we developed the OcularCheck app as a free mobile vision screening tool for public health use.

Objective: We sought to determine whether OcularCheck accurately measures distance visual acuity (DVA) in comparison to a standard Snellen chart (Space Saving Chart SSC-350).

Methods and Results: In January 2021, we measured DVA in n=56 eyes using the OcularCheck app and a standard Snellen chart. To minimize bias, we used two separate examiners who were blinded to each other’s measurements. To assess the similarity of measurement methods, we performed a two-tailed, paired t-test and Bland-Altman analysis using the R-Project software.

The t-test showed that differences in DVA between testing methods were not significant (P=0.698). Bland-Altman analysis showed that the mean difference between measurement methods was 0.01 LogMAR (95% CI -0.03 to 0.04), and the standard deviation of differences (0.139 LogMAR) was below the test-retest variability of the Snellen chart. The main limitation of the study was that we were not able to measure DVA with non-English optotypes.

Conclusion: OcularCheck provides accurate DVA measurements, and it harbors the potential to expand the accessibility of DVA screening to resource-scarce regions.
On fixpoints of Higham’s function
Authors: TRÎMBIŢAŞ RADU T.
Published: June 2021

We study the strange behavior in floating-point arithmetic of a function proposed by Nicholas Higham, consisting of repeated square roots extraction followed by the same number of times squaring and find its fixpoints. For IEEE standard double precision floating point numbers the fixpoints have the form

\[ x \in \left\{\left( 1+k\mathrm{eps}\right) ^{\frac{1}{\mathrm{eps}}},\quad k=\left[ -745:\frac{1}{2}:-\frac{1}{2},0:709\right]\right\} \cup \{0\} , \]

where \mathrm{eps} is the machine epsilon."