bluuebunny/crossref_metadata_2025 huggingface dataset:
Efficient Stabilization of Na Storage Reversibility by Ti Integration into O′3-Type NaMnO
2
Authors: Sato Takuro , Yoshikawa Kazuki , Zhao Wenwen , Kobayashi Tokio , Rajendra Hongahally Basappa , Yonemura Masao , Yabuuchi Naoaki
Published: May 2021

The development of an energy storage system with abundant elements is a key challenge for a sustainable society, and the interest of Na intercalation chemistry is extending throughout the research community. Herein, the impact of Ti integration into NaMnO
2
in a binary system of

x

NaMnO
2
–(

1
–
x

) TiO
2
(

0.5
≤
x
≤
1

) is systematically examined for rechargeable Na battery applications. Stoichiometric NaMnO
2
, which is classified as an in-plane distorted O

′

3-type layered structure, delivers a large initial discharge capacity of approximately 200 mAh g
-1
, but insufficient capacity retention is observed, most probably associated with dissolution of Mn ions on electrochemical cycles. Ti-substituted samples show highly improved electrode performance as electrode materials. However, the appearance of a sodium-deficient phase, Na
4
Mn
4
Ti
5
O
18
with a tunnel-type structure, is observed for Ti-rich phases. Among the samples in this binary system, Na
0.8
Mn
0.8
Ti
0.2
O
2
(

x
=
0.8

), which is a mixture of a partially Ti-substituted O

′

3-type layered oxide (Na
0.88
Mn
0.88
Ti
0.12
O
2
) and tunnel-type Na
4
Mn
4
Ti
5
O
18
as a minor phase elucidated by Rietveld analysis on both neutron and X-ray diffraction patterns, shows good electrode performance on the basis of energy density and cyclability. Both phases are electrochemically active as evidenced by
in situ
X-ray diffraction study, and the improvement of reversibility originates from the suppression of Mn dissolution on electrochemical cycles. From these results, the feasibility of Mn-based electrode materials for high-energy rechargeable Na batteries made from only abundant elements is discussed in detail.
The Influence of Enterprise Risk Management Implementation and Internal Audit Quality on Universities’ Performance in Indonesia
Authors: Yudianto Ivan , Mulyani Sri , Fahmi Mohamad , Winarningsih Srihadi
Published: May 2021

Universities obtain a lot of pressure from stakeholders to manage risk to achieve better performance. The enterprise risk management implementation and internal audit quality conditions are not optimal to help the university reach the performance target. This study aims to examine the influence of the enterprise risk management implementation and internal audit quality toward the performance of State-Owned Universities-Legal Entity and State-Owned Universities-Public Service Agency in Indonesia. Researchers use explanatory study and questionnaire instruments to collect data. The study concludes that the enterprise risk management implementation and the internal audit quality have a positive and significant influence on the Performance of State-Owned Universities-Legal Entity and State-Owned Universities-Public Service Agency in Indonesia. Improving university performance requires an effective enterprise risk management implementation and internal audit quality.
Optimization Model of Reservoir Operating Pattern Based on the Adaptive Inflow for Climate Change
Authors: Waluyadi Heriantono , Juwono Pitojo Tri , Soetopo Widandi , Rispiningtati  , Limantara Lily Montarcih , Legono Djoko
Published: May 2021

Urban Climate change in the past 40 years carries significant effects on the earth's surface. It shows an effect of extremely anomaly temperature because of such phenomenons as ENSO, IOD, and SOI. Thus, it can lead to seasonal change in Indonesia that affects the reservoir inflow and impacts the reservoir's operation pattern for managing power plant, irrigation, and raw water supply. This research used the relation between SST data (Nino 1.2, Nino 3, Nino 3.4, Nino 4, IOD West, IOD East, and SOI index) from NOAA and rainfall data from 1998 to 2018 in 9 stations at Wonogiri Reservoir Watershed from BBWS Bengawan Solo. With multiple linear regression analysis with a stepwise regression method, it indicated that the rainfall at Wonogiri Watershed and Inflow at Wonogiri reservoir was influenced by the SST index (Nino 1.2, Nino 3, Nino 3.4, Nino 4). Meanwhile, during the dry season, the rainfall at Wonogiri Watershed and the Inflow at Wonogiri reservoir were influenced by the SST index (IOD West, IOD East, and SOI). The rainfall and SST are related to being modeled for the probability of inflow distribution in each period (every 15 days). This inflow model influenced by climate change is to be used for the optimization model of reservoir operating pattern with Stochastic Model. The result that scenario 6 have the highest benefit, highest performance in the reliability and resiliency value in the simulation for a period between years 1979-2018.
CORRELATION OF SERUM ALBUMIN LEVELS WITH NOSOCOMIAL INFECTIONS IN PATIENTS UNDERGOING MAJOR ELECTIVE SURGERY
Authors: Data Sahil , Vashist M.G. , Kaushik Anil , Sachdeva Kanika , Singha Abhijit Kumar , Yadav Sunil Kumar
Published: May 2021

It has been suggested that the low serum albumin levels are associated with the increased incidence of complications after gastrointestinal surgery.
The aim of this study was to determine if preoperative total albumin levels are associated with a higher risk of postoperative infections. A total of
151 patients undergoing general surgical procedures between March 2018 to Feb 2019 presenting in the outpatient Department of surgery of Pt. B.
D. Sharma Postgraduate Institute of Medical Sciences, Rohtak were studied. Serum albumin levels were done in all the patients preoperatively. Chi
square test was used to look for association of nosocomial infection with albumin levels. Serum albumin <3.5 gm/dl was one of the strong risk
factors for the development of nosocomial infection after surgery.
TO COMPARE THE EFFECTS OF ROPIVACAINE(1.8mg/kg) WITH FENTANYL (50μg) AND ROPIVACAINE (1.8mg/kg) WITH CLONIDINE (75μg) FOR INTRAVENOUS REGIONAL ANAESTHESIA (IVRA) FOR UPPER LIMB AND LOWER LIMB SURGERIES
Authors: Kumar Rajan , Kumar Das Bisswadeep , Thatte W. S. , Jana Debarshi
Published: May 2021

Introduction: Intravenous Regional Anaesthesia (IVRA) is indicatedfor short surgical procedures of upper extremity(below elbow) and of lower
extremity (below knee). The aim of this randomised double-blind controlled study was to investigate the effects of adding Injection Clonidine as
adjuvant to Injection Ropivacaine and Injection Fentanyl as adjuvant to injection Ropivacaine for IVRA in patients undergoing upper limb (below
elbow) and lower limb (below knee) surgeries. Sixty adult ASA I and II patients Material and methods: of either sex in the age range of 20 to 60
years were randomly divided equally into 2 groups of 30 each. Group A received Injection Ropivacaine(0.75%) 1.8 mg/kgwith Injection
Clonidine75µg/kg and Group B received Injection Ropivacaine (0.75%) 1.8 mg/kg with Injection Fentanyl 50 µg/kg. Results: Sensory onset
showed high statistically signicant difference with Group A having earlier onset at 28.50 19.96 seconds as compared to Group B at 238 111.95
seconds (P<0.0001). Comparison of peak sensory showed high signicant statistical difference with Group A having earlier onset at 194 223.21
seconds as compared to Group B at 720 217.19 seconds (P<0.0001). The sensory wearoff between both the groups were highly signicant
statistically showing Group A at 1150 ± 486.19 seconds as compared with Group B 184 ± 112.45 seconds (P<0.0001). The Visual Analogue Score
in post operative ward just after completion of surgery show Group B having higher VAS score as compared with Group A.The time for rescue
analgesia was prolonged in Group A as compared with Group B. Conclusion: Adding Clonidine to Ropivacaine improved the quality of
anaesthesia and post-operative analgesia in Intravenous Regional Anaesthesia as compared to when Fentanyl was added to Ropivacaine.
THE STUDY OF THYROID FUNCTION IN RHEUMATOID ARTHRITIS IN NORTH BIHAR
Authors: Priyanka Priyanka , Bala Nutan , Shreya Shreya , Kumari Sheela , Jana Debarshi
Published: May 2021

RA patients coming from North Bihar reason i.e. Darbhanga, Madhubani, Samastipur etc. at DMCH, OPD. The study was of prospective nature,
and analytical cross sectional study.The relationship between thyroid function and rheumatoid arthritis (RA) is a debatable subject and many
studies have successfully demonstrated the autoimmune nature of thyroid dysfunction in RA.
In a systematic review analyzing the results of 54 studies that investigated the coexistence of ADs within individuals and 9 studies that examined
within-family associations, these data supported an increased prevalence of ATDs among patients with RA. In a separate study investigating the
frequency of rheumatic diseases in patients suffering from ATDs, various rheumatic diseases were detected in 62% of patients with ATDs, one of
which wasRA.
The combination of RA and autoimmune thyroiditis was already recognized half a century ago. More recently, the coexistence of RA and
hypothyroidism was reassessed, but data on this relationship remains sparse. As hypothyroidism and RA are both relatively common autoimmune
diseases associated with increased CVD morbidity and mortality.Further research into the interaction between these two diseases is worthwhile,
both from a cardiovascular and from an immunological point of view.
COMPASSION FATIGUE OF TEACHERS HANDLING STUDENTS WITH DISRUPTIVE BEHAVIOURS IN INCLUSIVE CLASSROOM
Authors: Kanmani S. , Sujathamalini J.
Published: May 2021

The present study, the investigator aims to compassion fatigue of teachers while handling students with disruptive behaviours in inclusive
classroom. One Hundred and Fifty teachers handling students with disruptive behaviours in inclusive setup from Sivaganga District in Tamil Nadu
were chosen as sample, by using purposive sampling technique and administered with a compassion fatigue Rating Scale. The results of the
research questions tested revealed that teachers were signicantly more likely to have high and moderate risk of compassion fatigue, while teachers
handling students with disruptive behaviours. Male teachers experience higher level of compassion fatigue than the female teachers. This result
shows that the female teachers are experiencing less compassion fatigue than male teachers and it may be due to their nature of patience, tolerance
and societal & cultural background. This study revealed the need for compassion fatigue reduction training programme for the teachers handling
students with disruptive behaviour. Educational Bodies like NCERT, SCERT, DIET should design in service and pre service training programme
for teachers to overcome their depression and compassion fatigue while handling disruptive behaviours. Training to male counterparts to strength
their emotional stability is also to be designed to combat the compassion fatigue arising out of their nature.
Reconstruction methods during laparoscopic gastrectomy
Authors: Amilcare Parisi  , Chang-Ming Huang
Published: May 2021

Gastric surgery is one of the most relevant fi elds of development for minimally invasive technologies. Laparoscopy is now widespread, and several studies have demonstrated its feasibility and safety even in some advanced oncological procedures. Robotic surgery has several intrinsic advantages that theoretically can improve an extensive lymphadenectomy or the reconstruction phase. Much remains to be addressed in this field and further studies are necessary to offer the patient the best possible approach based on his characteristics and the stage of his disease. The present report off ers an overview on robotics and its role in gastric surgery.
Multiple neuroendocrine tumors of the small bowel: a case report
Authors: Selene Rossi  , Federico Farinacci  , Alessandro Gemini  , Felice Mucilli
Published: May 2021

Neuroendocrine tumors of the small bowel are rare malignancies that often occur in the case of bowel obstruction or intestinal bleeding. The present case is a 46-year-old man who underwent emergency surgery for obstruction due to a rare presentation of multiple neuroendocrine lesions located in an intestinal loop. Pathology showed 15 NETs (grade 1) between 4 and 15 mm diameter with positive lymph nodes and liver metastases already detected by the preoperative CT scan.
Enhanced Recovery After Surgery (ERAS) Protocol for Gastrectomy: A Tailored Program Developed at a Gastric Cancer Unit
Authors: Jacopo Desiderio  , Stefano Trastulli  , Antonio Di Cintio  , Rita Commissari  , Andrea Colasanti  , Marialaura Scarcella  , Ilenia Grandone  , Sergio Bracarda  , Anna Mariniello  , Amilcare Parisi
Published: May 2021

Background Planning for and managing patients who follow multidisciplinary paths allow institutions to provide better care administration; greater collaboration among medical staff, patients, and their relatives; better patients education; reduced possible complications related to surgery and hospital stay; and increased patient adherence to the proposed treatments due to better information. The ERAS Society’s guidelines align in this direction, and many institutions are now looking to apply the suggestions contained in its items. This effort is especially important in surgical oncology. In this work, we report the experience of our center in developing tailored guidelines for patients undergoing gastrectomy based on evidence from the literature and adapted to address the availability of personnel and equipment in our institute. Methods A permanent institutional working group was established at St. Mary’s Hospital. Evidence‐based comprehensive research was conducted to find optimal perioperative care management for patients undergoing gastrectomy. Evidence and recommendations were thoroughly evaluated and considered together with the items from the ERAS Society’s guidelines. Results A complete patient pathway has been established from the first outpatient visit to discharge. All ERAS items were considered and adapted to our hospital’s care environment. Education, nutrition, anesthesiologist care, surgical approach, and ward organization are the main points of strength highlighted in the present work. Conclusion This proposed institutional evidence‐based protocol show comprehensive management for patients with gastric cancer eligible for enhanced surgical pathways.
Laparoscopic repair for perforated peptic ulcer: our experience, a comparison with the open approach and a review of the literature.
Authors: Samuele Vaccari  , Vito D'Andrea  , Augusto Lauro  , Roberto D'Intino  , Eliana Gulotta  , Maurizio Cervellera  , Valeria Tonini
Published: May 2021

Backgrounds: The incidence of perforated peptic ulcers has decreased during the last decades but the optimal treatment for these patients remains controversial. At the same time, a laparoscopic approach to this condition has been adopted by an increased number of surgeons. Therefore, this study wants to evaluate the postoperative results of the laparoscopic treatment of perforated peptic ulcer performed in one Italian center with extensive experience in laparoscopic surgery. Methods: This retrospective study includes 94 patients who were operated for perforated peptic ulcer peritonitis at “St. Orsola Hospital - Emergency Surgery Unit - University of Bologna” from May 2014 to December 2019. The patients’ charts were reviewed for demographics, surgical procedure, complications, and short-term outcomes. Results: The diagnosis was made clinically and confirmed by the presence of gas under diaphragm on abdominal X-ray. All patients underwent primary suture repair with or without omentopexy. Boey score 0 or 1 was found in 66 (70%) patients, Boey 2 or 3 in 28 (30%) patients. The operative time was between 35 and 255 minutes, with a mean of 93 minutes. The overall median hospital stay was 9.5 (1-60) days. Post-operative complications occurred in 19 (20%) patients and 18 (19%) patients died. Conclusions: Perforated peptic ulcer is a severe condition that requires early hospital admission and immediate surgery. Laparoscopy in experienced centers and for selected patients is safe, associated with optimal outcomes and should be the preferred approach.
Our experience with laparoscopic total gastrectomy for gastric cancer: A case series
Authors: Manash Ranjan Sahoo  , Satyajit Samal  , Jyotirmay Nayak
Published: May 2021

Background: Though laparoscopic distal gastrectomy has become a standard procedure for treatment of gastric cancer, laparoscopic total gastrectomy has not been widely accepted as it requires more dexterity and lack of evidence about its feasibility and safety. Methods: Here retrospectively we review a series of 12 cases of gastric cancer undergone laparoscopic total gastrectomy with D1 or D2 lymphadenectomy over a period of 7 years at a tertiary care hospital. The patient demographic characteristics were reviewed and the outcomes after surgery was analyzed in terms of extent of lymphadenectomy, mean operative time, mean intraoperative blood loss median number of lymph nodes harvested, median time for postoperative ambulation, median time for postoperative oral feeding, median time of postoperative hospital stay, postoperative complications and mortality. Results: All patients had total gastrectomy entirely through laparoscopic method. Mean operative time was 282 minutes, mean intraoperative blood loss was 120 ml, median time for ambulation and oral feeding was 3 days and 6 days respectively. Median time of hospital stay was 16 days and 2 patients had complications as pancreatic fistula and port site abscess. No mortality was observed. Conclusion: With zero mortality and accepted rate of complications, laparoscopic total gastrectomy appears to be technically feasible and safe for management of gastric cancer. But more studies have to be conducted with comparison to other standard gastrectomies and long term follow up to be done to establish its standardized application.
“Dovetail” gastric resection: a novel model in the treatment of gastrointestinal stromal tumors
Authors: Denise Gambardella  , Angelo Aldo Schicchi  , Andrea Boccuto  , Vito Bilotta  , Ettore Caruso  , Luigino Borrello  , Manfredo Tedesco
Published: May 2021

Gastrointestinal stromal tumors (GISTs) are the most common malignant subepithelial lesions of the gastrointestinal tract. The prognosis of this disease is associated with the tumor size and mitotic index. The standard treatment of a GIST without metastasis is surgical resection. The stomach is the most frequent site of the disease and many technical solutions have recently been proposed as shown also by the dramatic increase in publications on this field. There are many studies that suggest laparoscopy may be an acceptable surgical treatment option compared to open surgery for gastric GIST. However, open surgery assumes great importance in large tumors located in difficult to access locations. Here, we present a case involving a 60-year-old man who was diagnosed with gastric antrum GIST, according to a preoperative examination and postoperative pathology. Then, the patient successfully underwent an atypical gastric resection. We proposed a novel surgical technique to be considered in case of gastric benign disease or GIST localized at the gastric antrum.
Superior Mesenteric Artery Syndrome: A Single-institution Experience
Authors: Chun-huang Chen  , Victor T.K. Chen  , Shao-Jiun Chou  , Hsiang-Chun Jan  , Tzu-Hung Chen  , Sheng Chun Wang  , Hui-Yu Lin  , Yi-Hsuan Hu
Published: May 2021

Background: Superior mesenteric artery syndrome (SMAS) is a rare disease in adult. SMAS is characterized by acute, or, more commonly, chronic nonspecific symptoms due to duodenal obstruction and severe malnutrition with reduced arterio-mesenteric angle and distance. Surgical treatment may be necessary in most cases with chronic symptoms or when conservative treatment fails in SMAS. Methods: A retrospective chart review was performed on patients who underwent operation for SMAS from January 2008 to August 2020 in Cardinal Tien Hospital. Patients’ clinical presentations, surgical intervention, and outcomes. Results: Data from a total of 14 patients diagnosed with SMAS were analyzed, of which seven were diagnosed with SMAS by abdominal computed tomography and upper gastrointestinal series with water-soluble barium contrast. Six of the confirmed cases underwent surgery, namely, gastric decompression using a nasogastric tube, and correction of electrolyte imbalance. The nasoduodenal tube was placed through the obstructed duodenum to provide a high-nutrient fluid supplement. After conservative treatment failure, the patients underwent surgery. Of the six patients, four underwent duodenojejunostomy, one underwent a mini-laparotomy duodenojejunostomy bypass, and the last one underwent Roux-en-Y duodenojejunal bypass with duodenal feeding tube insertion. Conclusion: Patients with SMAS should initially be treated conservative. Surgical intervention should be considered in patients in whom conservative treatments were not effective. Complete resolution of all symptoms may not always be guaranteed after surgical intervention. Laparoscopy is currently widely used. In well-selected patients, minimally invasive or mini-laparotomy duodenojejunostomy is a safe and effective treatment for SMAS. The main advantages of mini-laparotomy duodenojejunostomy over other surgical approaches include half-length surgical incision and a shorter operative time. Duodenojejunostomy is rapidly becoming the standard procedure of this condition, and it has excellent outcomes comparable with those of open surgery.
The Correlation Between Air Pollution Exposure Duration and Occurence of Emphysema Based on Chest CT Scan in Public Transportation Drivers
Authors: Simargi Yopi , Seprianto Jessica , Santi Bryany Titi
Published: May 2021

Background: Emphysema is included in chronic obstructive pulmonary disease (COPD) whose prevalence tends to increase in Indonesia. Air pollution is one of risk factor for emphysema. Public transportation drivers are one of the most vulnerable occupation exposed to air pollution. This study aimed to determine the correlation between air pollution exposure duration and occurence of emphysema in public transportation drivers. Methods: This was an analytic observational study using a cross-sectional approach. Samples of this study (n=32) were public transportation drivers in North Jakarta. Data were collected during August – October 2019 at Atma Jaya Hospital, North Jakarta. The study datawere secondary data obtained through interviews and chest CT scan. Data analysis was performed using Fisher’s exact method. Results: The prevalence of emphysema was 46,9% with 9 respondents (60%) had mixed type emphysema and 13 respondents (87,7%) had mild degrees. The prevalence of public transportation drivers exposed to air pollution for more than or equal to 8 hours a day was 87,5%. There was a significant correlation between air pollution exposure duration and occurence of emphysema (P=0,038). Conclusion: There was a statistically significant correlation between air pollution exposure duration and occurence of emphysema. As many as 11 respondents (39,3%) exposed to air pollution for more than or equal to 8 hours a day exposure were found to have emphysema. However, all respondents in this study were smokers, which was also a risk factor for emphysema and could be considered as severe air pollution.
IMPROVING THE EFFICIENCY OF HEAT TRANSFER IN AIR COOLERS
Authors: Scherbin Sergey , Koryachenko Anton
Published: May 2021

The method of estimation of efficiency of heat transfer of air in air coolers at different

values of the coefficient of finned heat exchanger tubes.
COMPARATIVE ANALYSIS OF EXISTING METHODS FOR DEVELOPING CORRESPONDENCE MATRICES
Authors: Lebedeva Ol'ga
Published: May 2021

The study is aimed at comparing the methods of restoring correspondence matri ces, the traditional transport school and modern mobile technologies. Traditionally, correspondence

matrices are restored by interviewing vehicle drivers and applying gravity models (to extrapolate and

fill in unobserved movements), then matrix estimation methods are used to calculate traffic flows.

Each of these approaches has a number of advantages and disadvantages, but there is no evidence

to assess the quality of the data obtained.
INVESTIGATION OF THE THERMAL CONDUCTIVITY OF AUTOCLAVED AER ATED CONCRETE
Authors: Ryabkov Maksim , Baranova Al'bina , Skulin Aleksandr , Kocyr' Alina
Published: May 2021

The results of measuring the thermal conductivity coefficients of autoclaved aerated

concrete grades D450 and D600 in the dry, water-saturated and frozen state are presented.
IMPROVING THE STABILITY OF METAL FRAME ELEMENTS WHEN WORKING TOGETHER WITH FOAM CONCRETE
Authors: Savenkov Andrey , Zaenec Evgeniy , Ketner Andrey
Published: May 2021

The static operation of building frame elements is considered. A comparison of the

load-bearing capacity of floor beams made of rolled steel and beams made of thin-walled curved pro files is given
ABOUT IMPLEMENTATION OF NEUFAL NETWORKS IN SCILAB
Authors: Chihachev Sergey
Published: May 2021

An example of the implementation of the Kohonen map in SCILAB is given.
THE LEGAL HERITAGE OF THE NUREMBERG TRIBUNAL: A HISTORICAL ASPECT
Authors: Savchuk Natal'ya , Kobak Ekaterina
Published: May 2021

The main principles and norms of the Nuremberg Military Tribunal are described.

Their importance for the development of international law and cooperation of states in the prevention

of military conflicts is shown.
FEATURES OF SCIENTIFIC AND TECHNICAL TEXT TRANSLATION
Authors: Yushko Galina
Published: May 2021

Translation of scientific and technical texts is a difficult task due to the presence of

specific terminology. However, knowledge of syntactic constructions accelerates mastering the ability

to read scientific and technical texts
THE OPERATION OF THE CONDENSING EQUIPMENT OF THE ISOMERIZATION UNITS OF LIGHT RIGHT NAPTHA
Authors: Knyazeva Tamara , Raskulova Tat'yana
Published: May 2021

the analysis of the operation of the condensation equipment of the units for the pre liminary fractionation of raw materials for the isomerization of straight-run naphtha. Variants of ar rangement of condensing devices of rectification columns are considered, their efficiency is e
FINANCIAL PROBLEMS OF THE RUSSIAN CONSTRUCTION SECTOR
Authors: Dugar-Zhabon Ruslana , Yalovik Mihail
Published: May 2021

The financial indicators of the construction sector of the Russian economy are considered.
ABOUT SOME ISSUES OF MOBILE APP MARKETING
Authors: Zarubina Yuliya
Published: May 2021

The article is devoted to the marketing of mobile applications in the field of tourism
ZIGGURATS OF BABYLON AND ANCIENT MESOPOTAMIA
Authors: Panchuk Ekaterina , Samchuk Roman
Published: May 2021

The features of the structure of ziggurats, assumptions about their purpose are con sidered, a comparative characteristic of ziggurats and pyramids is given.
ASSESSMENT OF PHYSICAL DEVELOPMENT OF STUDENTS FIRST COURSE
Authors: Yaroshevich Irina
Published: May 2021

In the course of training sessions, the data of third-year students with somatoscopy

and anthropometry were revealed, which make it possible to assess the level of physical development

and body features of girls.
METHODOLOGY OF STATISTICAL PROCESSING OF KNOWLEDGE TESTING RESULTS
Authors: Bal'chugov Aleksey
Published: May 2021

It is proposed to use a criterion similar to Cochran's criterion for statistical pro cessing of test results. It is shown that the critical value of the Cochran criterion for a group of 4 people

who have been tested on 5 topics is approximately 0.2.
SELECTION OF FACTORS OF THE LEARNING PROCESS USING THE RANKING METHOD
Authors: Bal'chugov Aleksey
Published: May 2021

It is shown that the ranking method allows for a preliminary selection of factors in

the study of the learning process
COMMUNICATIVE APPROACH IN FOREIGN LANGUAGE TEACHING
Authors: Sitosanova Ol'ga
Published: May 2021

The article deals with the use of communicative situations in foreign language classes.
«BLACK BOX» AS A MODEL OF THE OBJECT OF RESEARCH IN CHEMICAL TECHNOLOGY
Authors: Bal'chugov Aleksey , Enhbat R.
Published: May 2021

It is shown that the “black box” or “ark” model is purposefully used when planning

experiments in chemical technology, as well as when presenting complex issues of chemical technol ogy in lectures.
MODERNIZATION THE STAGE OF METHYLAMINES RECTIFICATION IN JSC «ANHK»
Authors: Shvalev Egor , Kuzora Igor' , Dubrovskiy Dmitriy , Semenov Ivan
Published: May 2021

The article describes the experience of JSC «ANHK» in modernizing the most en ergy-intensive stage of methylamine production in replacing the outdated grooved plates. The low

productivity of the installation and the large diameters of the columns for the production of methyla mines forced to take a non-standard approach to the selection and replacement of internal contact

devices. The modernization made it possible to obtain a significant economic effect several times

greater than the costs of developing and implementing the project
Diseño de una app como herramienta de apoyo para la enseñanza-aprendizaje del álgebra básica
Authors: Cortés Velazquez Farid , Castillo Quiroz Gregorio , Cruz Luna Manuel , Hernández Cabrera Hugo
Published: May 2021

Algesquares is an innovative method based on the algebraic tiles created by Caleb Gattegno, which seeks a more dynamic student experience, instead of teaching algebra by the traditional method. The present work aimed to present the design of an application that functions as a teaching tool for students and teachers, in Basic Algebra topics, through a board with colored cards marked with a positive and negative sign that solve issues such as reduction of terms like, multiplication, factoring, etc. Students will be the protagonists of their own learning and will play an active role in and out of the classroom, obtaining points through solving interactive algebraic exercises, increasing levels and difficulty. Algesquares, seeks to capture the student's attention, motivate and interest them, encouraging students to be self-taught, advancing in the application gradually and advancing at their own pace, building meaningful learning in students, developing mathematical skills, knowledge and skills, to continue their school training.
Comparative Analysis of Conventional Formwork with Specialized Emerging Formwork Regarding Project Engineering Factors for High-rise Building
Authors: Mistry Deep Jayesh , Raval Amit D. , Pitroda Jayesh R.
Published: May 2021

Today, because of globalization, there have been a number of improvements in the construction of modern technology worldwide, as a result of the quick and reliable distribution of new and emerging technologies through societies worldwide and the cross-border information sharing. Shaping which helps to mount the concrete in the desired shape It is a critical component of the construction to support the loads placed on it, as well as supporting moist cement until it sets. Formwork is a significant building function that accounts for 20–25 percent of overall construction costs. As a result of using the more recent formwork techniques, it is possible to cast larger components quicker than normal, reducing the need for time and labour when opposed to traditional methods. This paper conducts a comparative analysis between current formwork technologies and recently evolving formwork systems such as aluminum formwork and jump formwork systems, which are not widely used in India, and thus suggests which approach is best for the project under consideration. To gain a better understanding of this topic, various construction projects using newly emerging formwork techniques are analyzed, and the data obtained from these projects is used to compare newly emerging formwork with traditional formwork systems.
USE OF FATTY STROMAL CELLS IN THE COMPLEX TREATMENT OF TROPHIC ULCERS IN THE EXPERIMENT
Authors: Lupaltsov Volodymyr , Yagniuk Andriy , Kitchenko Sergii , Sorokina Irina , Kaluzhina Oksana
Published: May 2021

Abstract. The aim of the study. The purpose of the research is to study the effectiveness of the treatment of trophic ulcers by autologous transplantation of stromal cells from adipose tissue in the experiment.
Materials and methods of research. Experimental studies of the effectiveness of the treatment of trophic ulcers of venous etiology by autotransplantation of adipose tissue cells on 14 rabbits of the Chinchilla line, aged more than 4 months in both sexes, weighing 3 kilograms, are presented. After receiving the trophic ulcer, the rabbits were divided into 2 groups. A control group of 7 rabbits who used drug therapy and a core group of 7 rabbits who underwent autotransplantation of stromal cells from adipose tissue against the background of drug therapy. Both groups performed morphological and immunohistochemical studies.
Results and conclusions. It is determined that the use of the method of autotransplantation of the stromo-vascular fraction of adipose tissue (SVF) in the treatment of trophic ulcer of venous etiology in the experiment in rabbits leads to acceleration of the processes in the healing of trophic ulcer, which is increased by the level of cytokyntinucleation, into more mature connective tissue.
Keywords: mesenchymal stromal cells from adipose tissue, trophic ulcer, chronic venous insufficiency, experiment, morphological study, immunohistochemically research.
First finding of Greeffiella Cobb, 1922 (Nematoda, Desmoscolecida) in the Black Sea
Authors: Sergeeva Nelly G. , Revkova Tatiana N.
Published: May 2021

The first finding of the genus Greeffiella Cobb 1922 (Greeffiellinae, Desmoscolecidae) in the Black Sea is presented. Two mature females were collected in Northwestern Shelf of Crimea in strongly silted fine sand with detritus at a water depth of 56 m. Greeffiella sp. is described and illustrated. The absence of males in the collections does not allow the authors to present it as a new species for science or to identify it as one of the known species of the genus Greeffiella. Black sea specimen is distinguished from the other known species of the genus Greeffiella with the presence of 8 pairs of thicker specific setae along the body, the basis of which looks like a small lamina, but without hairs, which was previously described for G. pierri Schrage & Gerlach, 1975 and G. australis Schrage & Gerlach, 1975. The short esophagus at the base has two salivary glands and a cardia. Cardia has not been mentioned before for the known species of the genus Greeffiella.
Aktivitas Antioksidan Ekstrak Metanol Daun Alpukat Menggunakan Metode DPPH
Authors: Surya Alfin , Nazir Zaiyar , Syazulfa Anggun
Published: May 2021

Free radicals are molecules that lose electrons in their outer orbitals so that the number of electrons becomes odd and unstable. Free radicals can damage various macromolecule cells including proteins, carbohydrates, fats. Antioxidants are compounds that can donate one or more electrons to free radicals. Avocado leaves contain high bioactive components that can be used as a source of natural antioxidants. Avocado leaves that have been dried, mashed and then shifted with methanol. The extracts were tested by phytochemical screening, including flavonpoid, phenolic, tannin and antioxidant activity using the DPPH (2,2-diphenyl-1-picrylhidrazyl) method. This method is based on the reduction of 2,2-diphenyl-1-picrylhydrazyl (DPPH) against free radicals which causes a change from purple to yellow 2,2-diphenyl-1-picrylhydrazyl) (DPPH). From the research, the IC50 values ​​in avocado leaves were 118.8056 µg / mL and 7,276 µg / mL on ascorbic acid as a positive control. From the IC50 value obtained, it is known that the methanol extract of avocado leaves has strong antioxidant activity to fight free radicals.
DEVELOPMENT AND IMPLEMENTATION OF A TENTH-ORDER HYBRID BLOCK METHOD FOR SOLVING FIFTH-ORDER BOUNDARY VALUE PROBLEMS
Authors: Ramos Higinio , Momoh Adelegan L.
Published: May 2021

A hybrid convergent method of tenth-order is presented in this work for directly solving fifth-order boundary value problems in ordinary differential equations. A unique direct block approach is obtained by combining multiple Finite Difference Formulas which are derived via the collocation technique. The proposed method is fully analyzed and the existence and uniqueness of the discrete solution is established. Different numerical examples are considered and the results are compared with those provided by existing works in the literature. The comparison shows the good performance of the present method over some cited works in the literature, confirming the competitiveness and superiority of the new numerical integrator.
AN SEIR MODEL WITH INFECTIOUS LATENT AND A PERIODIC VACCINATION STRATEGY
Authors: Moneim Islam A.
Published: May 2021

An SEIR epidemic model with a nonconstant vaccination strategy is studied. This SEIR model has two disease transmission rates β1 and β2 which imitate the fact that, for some infectious diseases, a latent person can pass the disease into a susceptible one. Here we study the spread of some childhood infectious diseases as good examples of diseases with infectious latent. We found that our SEIR model has a unique disease free solution (DFS). A lower bound and an upper bound of the basic reproductive number, R0 are estimated. We show that, the DFS is globally asymptotically stable when and unstable if Computer simulations have been conducted to show that non trivial periodic solutions are possible. Moreover the impact of the contact rate between the latent and the susceptibles is simulated. Different periodic solutions with different periods including one, two and three years, are obtained. These results give a clearer view for the decision makers to know how and when they should take action against a possible new wave of these infectious diseases. This action is mainly, applying a suitable dose of vaccination just before a severe peak of infection occurs.
ASYMPTOTIC DISTRIBUTION OF EIGENVALUES AND EIGENFUNCTIONS OF A NONLOCAL BOUNDARY VALUE PROBLEM
Authors: Şen Erdoğan , Štikonas Artūras
Published: May 2021

In this work, we obtain asymptotic formulas for eigenvalues and eigenfunctions of the second order boundary-value problem with a Bitsadze–Samarskii type nonlocal boundary condition.
ARES.*
V. No Evidence For Molecular Absorption in the HST WFC3 Spectrum of GJ 1132 b
Authors: Mugnai Lorenzo V. , Modirrousta-Galian Darius , Edwards Billy , Changeat Quentin , Bouwman Jeroen , Morello Giuseppe , Al-Refaie Ahmed , Baeyens Robin , Bieger Michelle Fabienne , Blain Doriann , Gressier Amélie , Guilluy Gloria , Jaziri Yassin , Kiefer Flavien , Morvan Mario , Pluriel William , Poveda Mathilde , Skaf Nour , Whiteford Niall , Wright Sam , Yip Kai Hou , Zingales Tiziano , Charnay Benjamin , Drossart Pierre , Leconte Jérémy , Venot Olivia , Waldmann Ingo , Beaulieu Jean-Philippe
Published: May 2021

We present a study on the spatially scanned spectroscopic observations of the transit of GJ 1132 b, a warm (∼500 K) super-Earth (1.13 R
⊕) that was obtained with the G141 grism (1.125–1.650 μm) of the Wide Field Camera 3 (WFC3) on board the Hubble Space Telescope. We used the publicly available Iraclis pipeline to extract the planetary transmission spectra from the five visits and produced a precise transmission spectrum. We analyzed the spectrum using the TauREx3 atmospheric retrieval code, with which we show that the measurements do not contain molecular signatures in the investigated wavelength range and are best fit with a flat-line model. Our results suggest that the planet does not have a clear primordial, hydrogen-dominated atmosphere. Instead, GJ 1132 b could have a cloudy hydrogen-dominated atmosphere, have a very enriched secondary atmosphere, be airless, or have a tenuous atmosphere that has not been detected. Due to the narrow wavelength coverage of WFC3, these scenarios cannot be distinguished yet, but the James Webb Space Telescope may be capable of detecting atmospheric features, although several observations may be required to provide useful constraints.
An Exploration of Model Degeneracies with a Unified Phase Curve Retrieval Analysis: The Light and Dark Sides of WASP-43 b
Authors: Changeat Q. , Al-Refaie A. F. , Edwards B. , Waldmann I. P. , Tinetti G.
Published: May 2021

The analysis of exoplanetary atmospheres often relies upon the observation of transit or eclipse events. While very powerful, these snapshots provide mainly one-dimensional information on the planet structure and do not easily allow precise latitude–longitude characterizations. The phase curve technique, which consists of measuring the planet emission throughout its entire orbit, can break this limitation and provide useful two-dimensional thermal and chemical constraints on the atmosphere. As of today, however, computing performances have limited our ability to perform unified retrieval studies on the full set of observed spectra from phase curve observations at the same time. Here, we present a new phase curve model that enables fast, unified retrieval capabilities. We apply our technique to the combined phase curve data from the Hubble and Spitzer space telescopes of the hot Jupiter WASP-43 b. We tested different scenarios and discussed the dependence of our solution on different assumptions in the model. Our more comprehensive approach suggests that multiple interpretations of this data set are possible, but our more complex model is consistent with the presence of thermal inversions and a metal-rich atmosphere, contrasting with previous data analyses, although this likely depends on the Spitzer data reduction. The detailed constraints extracted here demonstrate the importance of developing and understanding advanced phase curve techniques, which we believe will unlock access to a richer picture of exoplanet atmospheres.
Spatial structure and morphometric relationships of the deep-sea shrimp Solenocera acuminata (Decapoda, Solenoceridae) in the Colombian Caribbean
Authors: Pacheco Carlos , Cusba José , Paramo Jorge , Queirolo Dante , Pérez Daniel
Published: May 2021

Given the potential interest in targeting Solenocera acuminata in a new deep-sea fishery in the Colombian Caribbean, biological information is needed to support the management of this species. The objective of this study is to provide biological information about size structure, size at sexual maturity, morphometric relationships, abundances and spatial and bathymetric distribution of S. acuminata in the Colombian Caribbean. Specimens of S. acuminata were collected during four deep-sea prospecting surveys in the Colombian Caribbean Sea, which were conducted between Punta Gallinas and the Gulf of Uraba. A total of 87 exploratory fishing trawls were made between 100 and 550 m depth. Sexual dimorphism was evident, with males being smaller than females. The size at sexual maturity of the females was 95.2 mm total length (23.82 mm CL). Relatively high biomass values were found in the northern zone of the Colombian Caribbean, between Santa Marta and Riohacha. In the southern zone, higher biomass was found between Cartagena and Morrosquillo Gulf. The biomass of S. acuminata was higher at night (mean 1.82 kg/km2) than during daylight (mean 0.15 kg/km2). This species was distributed between 150 and 400 m depth and the highest biomass was associated with depths between 330 and 380 m. Before starting a new fishery, more research is needed to understand the life cycle parameters of deep-sea resources, such as growth, reproduction, recruitment, mortality, spawning areas and times, nursery areas and associated biodiversity.
Two new crane fly species of the subgenus Vestiplex Bezzi, 1924 (Diptera, Tipulidae, Tipula) from Yunnan and Sichuan, China, with a key to species in the immota species group
Authors: Men Qiu-Lei , Starkevich Pavel , Saldaitis Aidas
Published: May 2021

Two new crane fly species, Tipula (Vestiplex) gongdangensissp. nov. and T. (V.) dechangensissp. nov. are described and illustrated based on materials collected in the Yunnan and Sichuan provinces, China. A key is provided to distinguish males of the new species from those of other species in the T. (V.) immota Alexander, 1935 species group which is proposed here for the first time.
Le renouveau du store vénitien, reflet d’un matériau moderne
Authors: Beiglig Alice
Published: May 2021

Cet article traite du store vénitien en aluminium, objet de second œuvre souvent discret dans la construction. Dans un contexte où, dès le début du XX e  siècle, la lumière se trouve au centre de la conception architecturale, l’utilisation de ce système hybride, entre le rideau et le volet, devient la réponse évidente à l’occultation de baies de toutes tailles. Sa simplicité d’usage, sa modularité mais surtout son changement de matière, allant du bois à l’aluminium, en font un produit adapté à l’architecture moderne de l’époque. Une base de données composée de coupures publicitaires et d’exemples architecturaux dans lequel il est mis en œuvre dans les années 1950 et 1960, permet de comprendre comment ce store à lamelles a su s’imposer grâce à ces qualités innées. Utilisé en intérieur, présenté comme une solution idéale à l’ensoleillement dans le logement, en extérieur dans les bureaux où les bâtiments industriels, mais aussi intégré entre deux vitrages, dans certains bâtiments publics, sa mise en œuvre variée s’adapte à tous types et toutes échelles de programmes.
Why is there a Home Bias? An Analysis of US REITs Geographic Concentration
Authors: Coën Alain , Simon Arnaud , Zaiter Saadallah
Published: May 2021

Dans cet article nous revisitons le biais domestique (ou home bias) en recourant aux options de croissance. En utilisant une base de données unique en immobilier, nous montrons que les foncières cotées sur les marchés financiers (ou les REITs) qui sont concentrées géographiquement exploitent mieux les options de croissance que celles qui sont non concentrées. Nos résultats empiriques (portant sur le marché américain de 1995 à 2017) montrent que le beta des options de croissance est significativement plus élevé que le beta des actifs en place pour les foncières qui ont un plus haut degré de concentration géographique. Nous constatons également que les options de croissance plutôt que les actifs en place représentent une composante importante dans la valorisation des foncières concentrées géographiquement. Globalement, nous montrons que la distance géographique et l›exploitation des options de croissance, pour les REITs américaines, sont liées et constituent des variables importantes dans l’explication du processus de décision d’investissement.