COMPOSITION AND CONTENT OF ORGANIC ACIDS IN JUICE AND WINE FROM GRAPES GROWN IN THE NORTH-WESTERN ZONE OF DAGESTAN

Author(s):  
Т.И. ДАУДОВА ◽  
О.К. ВЛАСОВА

Методом капиллярного электрофореза изучен качественный состав и количественное содержание органических кислот в соках и виноматериалах из винограда сортов Ркацители и Молдова, выращенных в экологических условиях равнины и предгорья северо-западной зоны Дагестана. Идентифицировано восемь компонентов: винная, лимонная, молочная, муравьиная, уксусная, щавелевая, яблочная и янтарная кислоты. Превалировали винная и яблочная кислоты, которые, как и уксусная, содержались во всех опытных образцах. Количество обнаруженных органических кислот составляло от 0,01 (молочная и янтарная) до 3,31 г/дм3 (винная). Их наибольшая общая массовая концентрация определена в соке из винограда сорта Ркацители – 5,3 г/дм3. Отмечено, что суммарное содержание этих компонентов в образцах соков и виноматериалов из винограда сортов Ркацители и Молдова незначительно зависит от высоты места произрастания винограда над уровнем моря. Этот природный фактор обусловливает различия в соотношениях кислот, особенно при формировании их пулов в виноматериалах. Органические кислоты, обнаруженные в исследованных образцах продуктов переработки винограда, способны влиять на появление неординарных нюансов цвета, вкуса и аромата, повышающих качество шампанских вин и коньяков. The qualitative composition and quantitative content of organic acids in juices and wine materials from grapes of Rkatsiteli and Moldova grown under the ecological conditions of the plains and foothills of the North West zone of Dagestan were studied by the method of capillary electrophoresis. Eight components are identified: wine, lemon, dairy, ant, acetic, oxalic, apple and amber acids. The amount of the found organic acids was 0,01 (dairy and amber acids) – 3,31 g/dm3 (wine acid). Their highest general mass concentration is defined in juice from Rkatsiteli – 5,3 g/dm3. It is noted that the total content of these components in the samples of juice and wine materials from grapes of Rkatsiteli and Moldova slightly depends on the height of your growing grapes above the sea level. This natural factor causes differences in ratios of acids, especially when forming their pools in wine materials. The organic acids found in the studied products of processing made from Rkatsiteli and Moldova grapes are capable to influence emergence of the extraordinary nuances of color, taste and aroma increasing quality of sparkling wines and cognacs.

Author(s):  
Kamohelo Nthebe ◽  
Nicolene Barkhuizen ◽  
Nico Schutte

Orientation: School principals have an important role to play in the quality of service delivery in schools. Evidence suggests that school principals are generally poorly compensated, which has an adverse impact on their well-being and subsequent service quality orientation.Research purpose: This study investigated whether rewards are a predictor of well-being and service orientation of school principals in the North-West province.Motivation for the study: Effective school principals are fundamental to the success of any school, which necessitates the establishment of an effective reward and remuneration system.Research design, approach and method: Quantitative research was carried out among school principals (N = 155) in four districts of the North-West province. The Total Rewards Scale, Maslach’s Burnout Inventory – General Survey, the Utrecht Work Engagement Scale and the SERVQUAL measure were administered among the principals.Main findings: The results showed that rewards are a significant predictor of the well-being and service quality of school principals. The results further showed that burnout significantly reduces the service quality of school principals. No significant relationships were found between work engagement and the service quality of school principals.Practical/managerial implications: An effective total rewards system enhances the well-being of school principals and, subsequently, their willingness and commitment to delivering quality services.Contribution: The results of this study point out some key elements that need to be considered by the Department of Education to enable quality service delivery in South African schools.


2014 ◽  

Looking at two smaller-scale systemic school improvement projects implemented in selected district circuits in the North West and Eastern Cape by partnerships between government, JET Education Services, and private sector organisations, this book captures and reflects on the experiences of the practitioners involved. The Systemic School Improvement Model developed by JET to address an identified range of interconnected challenges at district, school, classroom and household level, is made up of seven components. In reflecting on what worked and what did not in the implementation of these different components, the different chapters set out some of the practical lessons learnt, which could be used to improve the design and implementation of similar education improvement projects. Many of the lessons in this field that remain under-recorded to date relate to the step-by-step processes followed, the relationship dynamics encountered at different levels of the education system, and the local realities confronting schools and districts in South Africa's rural areas. Drawing on field data that is often not available to researchers, the book endeavours to address this gap and record these lessons. It is not intended to provide an academic review of the systemic school improvement projects. It is presented rather to offer other development practitioners working to improve the quality of education in South African schools, an understanding of some of the real practical and logistical challenges that arise and how these may be resolved to take further school improvement projects forward at a wider district, provincial and national scale.


2020 ◽  
pp. 250-266
Author(s):  
Jonathan Scott

This chapter studies cultural invention in light of the North-Western European cultural movement called Enlightenment. Enlightenment refers, in the first place, to a description by European intellectuals of what they took to be an advanced present state of moral and natural knowledge by comparison to that of the ancients. With related self-confidence, in the heyday of their empires, some described their culture as possessed of a dynamic modernity to be distinguished from the ‘oriental' lethargy and backwardness existing elsewhere. Yet Enlightenment also originated as European self-criticism. One context for that was the comparative perspective acquired by discovery of non-European cultures. In this and in other ways the origin of Enlightenment, including its ‘conviction that progress had become unstoppable', lies in the period when Renaissance and Reformation combined with printing and natural philosophy to establish the culture of the European North-West.


2020 ◽  
Vol 11 (3) ◽  
pp. 57-63
Author(s):  
Dmitrii A. Dobroserdov ◽  
Mikhail V. Shchebenkov ◽  
Alexey L. Shavkin

The dialysis department of the Childrens City Multidisciplinary Clinical Specialized Center for High Medical Technologies has been operating since 1977 and is the only specialized department in the North-West Region of the Russian Federation that provides assistance to children with both acute and chronic renal failure. Peritoneal dialysis is the treatment of choice for children with acute renal failure, the most common cause of which is hemolytic-uremic syndrome. Despite widely used measures to improve the results of peritoneal dialysis, complications are extremely common. The article analyzes the complications of peritoneal dialysis in children with acute renal failure who were treated in a hospital from 2008 to 2018. The emphasis in the study is on the analysis of complications of peritoneal dialysis, in the treatment of which the surgeon actively participated or should have taken part in. If the problem of acute renal failure is multidisciplinary in the sense that it requires the participation of nephrologists, resuscitators, infectious disease specialists, then if necessary, renal replacement therapy requires the surgeon to become not only a specialist providing access, but also a full-fledged participant in the treatment process. As follows from the foregoing, the surgeons actions depend not only on the quality of dialysis, but also the timeliness and adequacy of treatment of complications, which ultimately improves or worsens the quality of medical care in general.


Author(s):  
Kiros Abay ◽  
Kahsu Gebretsion

Aims: The aim of the study was to investigate the regeneration status and importance of Hypahene thebaica L. and associated species in Tekeze riparian vegetation of the North western zone of Tigray, Northern Ethiopia.  Study Design: Systematic sampling technique. Place and Duration of Study: The study was carried out along Tekeze riverine vegetation, northern Ethiopia between January 2015 and March 2015. Methodology: Three transects (one and two transects on the right and left side of the Tekeze River, respectively) were laid. The distance between the two transects on the left side of the river was 200 m. Along the transects, 30 plots were established systematically at intervals of 100 m to collect vegetation data. Results:  Eighteen plant species belonging to 12 families were recorded. Fabaceae was found to be the dominant family in the study area and were represented by five species, which contributed to 27.7% of the total species documented, whereas nine families were represented by one species each. The overall density of the study area was 70.97 individuals/ha. Hyphaene thebaica was the second abundant species with 16.13 individuals/ha, and contributed 22.7% to the total density of the riparian vegetation. The total basal area of plants was 1.03 m2 ha-1. Hyphaene thebaica was ranked third and accounts for 12.6% of the total basal area with 0.13 m2 ha-1. The species was the most frequent with 17.02%, followed by Ricinus communis and Balanites aegyptiaca. Balanites aegyptiaca (53.52%), H. thebaica (52.37%) and Ricinus communis (51.76%) were the three most important species. Conclusion: More mature trees were documented than saplings and seedlings, indicating “poor’’ regeneration status for the riparian vegetation. Hyphaene thebaica has shown “fair’’, while most species were found to have “poorly’’ or “no’’ regenerating. Hence a sound management plan is urgently required to sustainably utilize and conserve the riverine vegetation. 


Author(s):  
A.Yu. Ozerov ◽  
◽  
O.A. Girina, ◽  
D.V. Melnikov, ◽  
I.A. Nuzhdaev ◽  
...  

February 18, 2021, a flank eruption started on the north-western slope of the Klyuchevskoy Volcano (Kamchatka, Russia). Cinder cone was formed at the altitude of 2 850 m above sea level, from which a lava flow was spreading north-west. Having moved 1.2 km downslope, the lava flow entered the Ehrmann Glacier, which resulted in the formation of huge mud-stone flows. The latter made their way further north-east along the Kruten’kaya River bed and reached the length of about 30 km. The eruption brought onto the surface high-aluminous basaltic andesites typical of the Klyuchevskoy Volcano. By March 21, the flank eruption ended. It has been named after G.S. Gorshkov, associate member of USSR Academy of Science, famous Russian volcanologist.


2021 ◽  
Vol 79 (1) ◽  
Author(s):  
Mohammad Asghari Jafarabadi ◽  
Kamal Gholipour ◽  
Hassan Shahrokhi ◽  
Ayyoub Malek ◽  
Akbar Ghiasi ◽  
...  

Abstract Background Socioeconomic disparities in health and healthcare are global issues that affect both adults as well as children. Children with exceptional healthcare needs, especially those with developmental impairments, including Autism Spectrum Disorders (ASD), encounter major disparities in access to and quality of health services. However, disparities in the population of children are rarely studied. The main aim of this paper is to study the socioeconomic disparities in children with ASD by examining the association between their Social Determinants of Health (SDH) status and access to and the quality of services. Methods This is a cross-sectional study on 202 children with ASD conducted in 2019 in two provinces including Ardabil and East-Azerbaijan, in the North-West of Iran. A structured, valid questionnaire was used to collect data on demographic, SDH status, quality of services, and access to services in a population of children with ASD aged 2–16-year-old. Around 77% participants were male and the mean age of children was 2 years and 6 months. Structural Equation Modeling (SEM) were used to assess the relationship. Results Based on the results of this study, the overall mean scores of the quality of services, access to services, and SDH status were 61.23 (30.01), 65.91 (21.89), and 29.50 (22.32) out of 100, respectively. All the associations between the quality and access dimensions and quality (B: 0.464–0.704) and access (B: 0.265–0.726) scales were statistically significant (P < 0.001). By adjusting to covariates, the access was also significantly related to service quality (P = 0.004). Finally, the associations between SDH score with service quality (P = 0.039) and access (P < 0.001) were positively significant. Conclusions There are socioeconomic disparities in the quality of and access to services among children with ASD, who use ASD services, in the North-West of Iran. We recommend health/medical centers, where children are diagnosed with ASD, conducting SDH screening and providing families of low-SDH status with specific information about the quality of and access to services for children with ASD. Additionally, medical universities must have a plan to routinely monitor the quality of and access to services provided for the children with low SDH.


2020 ◽  
Vol 12 (1) ◽  
pp. 62-72
Author(s):  
Boris I. Chibisov

Introduction. History of the North-West area of Novgorod land at the end of the XV century attracted the attention of researchers mainly in the socio-economic aspect. This is due to the fact that Novgorod scribal books are dated by the end of the XV century. From the standpoint of socio-economic history their value is not in doubt, but from an ethno-historical point their onomastic content is underestimated. Materials and methods. The main source of research was the scribe book of the Vodskaya Pyatina 1499/1500. The descriptive method of research is to identify and record the Baltic-Finnish oikonyms (names of rural settlements) and anthroponyms mentioned in the scribe books. Baltic-Finnish anthroponyms are identified on the basis of an analysis of formal indicators of borrowing the anthroponyms. Results and Discussion. There are several areas where the Baltic-Finnish oikonymy and anthroponymy were concentrated, namely Korboselsky graveyard in the northern Prinevye, Lopsky and Terebuzhsky graveyards in the southern Ladoga, as well as Dudorovsky and Izhora graveyards south of the Neva. Archaeological sources record a significant presence of the Izhora antiquities. The presence of Karelians is noted in the northern Prievye and southern Ladoga. Slavic onomastic materials are recorded throughout Orekhovsky and Ladoga counties, but to mostly in the cities of Oreshka, Ladoga and their nearest areas. Conclusion. By the end of the XV century the north-western graveyards of Novgorod land were inhabited by representatives of various ethnic groups: Slavs, Vodians, Izhora and Karelians, as evidenced by the data of anthroponyms and toponyms of the scribe’s books and confirmed by archaeological sources.


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