scholarly journals Sonochemical Degradation of Phenol and Para-Chlorophenol in an Ultrasonic bath in the Presence of Inorganic Salts and H2O2

Author(s):  
Md. Helal Uddin ◽  
Md. Jahangir Hossain ◽  
Md. Shaharul Islam

Phenol (Ph) and some of its derivatives such as para chloro-phenol (PCP) have received considerable attention from environmental scientists and engineers, due to their undesirable effects in the water environment, where they end up as a result of improper disposal methods. As a consequence, research has been conducted all around the world with the common goal of reducing their concentrations to allowable limits or converting them to non-toxic, non-hazardous forms that may easily be handled by natural decay processes. This report describes a system developed to degrade these substances using sonochemical reactions. Sonochemical degradation of phenolic compounds were carried out in the presence and absence of NaCl, Na2SO4, Na2CO3, NaNO3 and H2O2. In sonochemical degradation of phenol in sonicatior hight degradation rate was obtained in the presence of additives H2O2 and followed the order: Ph+H2O2 > Ph+Na2SO4 ? Ph+NaCl > Ph (0 mM salt & additive) ? Ph+NaNO3 > Ph+Na2CO3. Whereas, in case of parachlorophenol (PCP) hight rate was obtained in the presec of H2O2 and they followed the order: PCP+H2O2 > PCP+NaCl > PCP+Na2SO4 ? PCP (0 mM salt & additive) > PCP+Na2CO3 > PCP + NaNO3.

2019 ◽  
Vol 200 ◽  
pp. 01011
Author(s):  
Greg Stachowski ◽  
Aniket Sule

Astronomical Olympiads and similar competitions for highschool students have been run in some countries for more than half a century, and last year marked the tenth anniversary of the largest such competition with global reach, the International Olympiad on Astronomy and Astrophysics. The effect of these has been to reach out to a large number of school students who might not otherwise have considered astronomy as a subject; help maintain a high, guided standard of astronomy education even in countries where astronomy is not (or no longer) on the curriculum; and to encourage those students who participate to strive harder and pursue astronomy further by giving them goals to aim for, rewarding their efforts with medals, recognition and participation in the international events in interesting locations and, above all, showing them that there are many other students just like them both in their own country and around the world. Many of the students go on to careers in astronomy education or research. We believe that Astronomy Olympiads are a very valuable element in the astronomy education framework which can be used to further the common goal of sustaining and growing the astronomical community.


2019 ◽  
pp. 66-71
Author(s):  
Olesia Dzyra

The article describes the division of the Ukrainian community of Canada in the interwar period into a number of public and political organizations. The focus is on the national and patriotic bloc, which opposed the communist one. The basis of this bloc constituted liberal the Ukrainian self-reliance league of Canada, nationalist the Ukrainian war veterans association in Canada, the Ukrainian national federation of Canada, conservative the Ukrainian catholic brotherhood of Canada, and the United hetman organization. The basis of the various conflicts in the bloc, including differences in ideological postulates of liberal, nationalist and conservative societies and views on the religion of Orthodox and Greek Catholics who were members of the organizations mentioned above are analyzed in the study. It is described how opposing parties resisted against each other, and what role the press played in those conflicts. The article also enlightens attempts of agreements between public organizations and mentions joint actions to support the Ukrainian issue in the world. The common goal could reconcile the national and patriotic public associations at the time of the formation of the Ukrainian Canadian Committee on November 7, 1940, which marked a new stage in the social and political life of the Ukrainian Diaspora, as it was emphasized in the article. The reasons that hindered Ukrainian societies from reaching a mutually acceptable consensus and promoted further aggravation of relations were elucidated. The main consequences of conflicts in the environment of national and patriotic public organizations were identified, namely how it was reflected in the social and political life of the Ukrainian diaspora during the interwar period, how it was perceived by the ruling circles of Canada, and how it was used by the communist groups.


2021 ◽  
Vol 16 (2) ◽  
pp. 120-128
Author(s):  
Norlaila Ibrahim ◽  
Marha Abdol Ghapar ◽  
Azlina Shamsudin ◽  
Nik Fakrulhazri Nik Hassan ◽  
Norchahaya Johar

Educators all over the world are scrambling to develop new and more advanced methods of teaching through the use of technology, with the common goal of engaging students in classrooms. Furthermore, the new generation, which grew up with the internet, video games, and online gaming, prefers a technology-infused approach to teaching and learning. They are no longer interested in the traditional method of classroom lectures. Educational games (EG) have also become a hot topic in the academic community. The goal of this paper is to look into the factors that influence students’ acceptance of online education. Based on the literature review’s discussions and arguments, it is possible to conclude that all factors influence students’ acceptance of online EG.


2018 ◽  
Vol 5 (1) ◽  
pp. 49-53
Author(s):  
Raju Basnet Chhetri

Healthcare service in itself is one of the most crucial, most sensitive services in the world. Advancement in healthcare infrastructures, equipment and manpower are rapid day by day. “Healthcare service providers”, the definition is changing from commonly perceived “doctors” to “doctors plus managers”. The healthcare practice has changed all its way from individual practice to communal, organised hospital systems; resources are pooled in a common place; where patients expect for every kind of treatment once they enter the common roof. However, the hospital only can understand the role the doctor and manager play together for quality healthcare services. The two now cannot be separated despite of several disparities that appear between them.There should always be an effort to bridge the gap between them which appears between them despite serving the common goal. Doctor manager collaboration including collaboration of education system shall bring the real bond between them to understand each other, understand system and pace for their common goal.Journal of Universal College of Medical Sciences (2017) Vol.05 No.01 Issue 15, page: 49-53


2019 ◽  
Vol 7 (8) ◽  
pp. 12
Author(s):  
Kunal Debnath

High culture is a collection of ideologies, beliefs, thoughts, trends, practices and works-- intellectual or creative-- that is intended for refined, cultured and educated elite people. Low culture is the culture of the common people and the mass. Popular culture is something that is always, most importantly, related to everyday average people and their experiences of the world; it is urban, changing and consumeristic in nature. Folk culture is the culture of preindustrial (premarket, precommodity) communities.


Author(s):  
Ghotekar D S ◽  
Vishal N Kushare ◽  
Sagar V Ghotekar

Coronaviruses are a family of viruses that cause illness such as respiratory diseases or gastrointestinal diseases. Respiratory diseases can range from the common cold to more severe diseases. A novel coronavirus outbreak was first documented in Wuhan, Hubei Province, China in December 2019. The World Health Organization (WHO) has declared the coronavirus disease 2019 (COVID-19) a pandemic. A global coordinated effort is needed to stop the further spread of the virus. A novel coronavirus (nCoV) is a new strain that has not been identified in humans previously. Once scientists determine exactly what coronavirus it is, they give it a name (as in the case of COVID-19, the virus causing it is SARS-CoV-2).


2020 ◽  
Vol 11 (SPL1) ◽  
pp. 907-912
Author(s):  
Deepika Masurkar ◽  
Priyanka Jaiswal

Recently at the end of 2019, a new disease was found in Wuhan, China. This disease was diagnosed to be caused by a new type of coronavirus and affected almost the whole world. Chinese researchers named this novel virus as 2019-nCov or Wuhan-coronavirus. However, to avoid misunderstanding the World Health Organization noises it as COVID-19 virus when interacting with the media COVID-19 is new globally as well as in India. This has disturbed peoples mind. There are various rumours about the coronavirus in Indian society which causes panic in peoples mind. It is the need of society to know myths and facts about coronavirus to reduce the panic and take the proper precautionary actions for our safety against the coronavirus. Thus this article aims to bust myths and present the facts to the common people. We need to verify myths spreading through social media and keep our self-ready with facts so that we can protect our self in a better way. People must prevent COVID 19 at a personal level. Appropriate action in individual communities and countries can benefit the entire world.


2019 ◽  
pp. 512-519
Author(s):  
Teymur Dzhalilov ◽  
Nikita Pivovarov

The published document is a part of the working record of The Secretariat of the CPSU Central Committee on May 5, 1969. The employees of The Common Department of the CPSU Central Committee started writing such working records from the end of 1965. In contrast to the protocols, the working notes include speeches of the secretaries of the Central Committee, that allow to deeper analyze the reactions of the top party leadership, to understand their position regarding the political agenda. The peculiarity of the published document is that the Secretariat of the Central Committee did not deal with the most important foreign policy issues. It was the responsibility of the Politburo. However, it was at a meeting of the Secretariat of the Central Committee when Brezhnev raised the question of inviting G. Husák to Moscow. The latter replaced A. Dubček as the first Secretary of the Communist party of Czechoslovakia in April 1969. As follows from the document, Leonid Brezhnev tried to solve this issue at a meeting of the Politburo, but failed. However, even at the Secretariat of the Central Committee the Leonid Brezhnev’s initiative at the invitation of G. Husák was not supported. The published document reveals to us not only new facets in the mechanisms of decision-making in the CPSU Central Committee, the role of the Secretary General in this process, but also reflects the acute discussions within the Soviet government about the future of the world socialist systems.


Author(s):  
Avtandil kyzy Ya

Abstract: This paper highlights similarities and different features of the category of kinesics “hand gestures”, its frequency usage and acceptance by different individuals in two different cultures. This study shows its similarities, differences and importance of the gestures, for people in both cultures. Consequently, kinesics study was mentioned as a main part of body language. As indicated in the article, the study kinesics was not presented in the Kyrgyz culture well enough, though Kyrgyz people use hand gestures a lot in their everyday life. The research paper begins with the common definition of hand gestures as a part of body language, several handshake categories like: the finger squeeze, the limp fish, the two-handed handshake were explained by several statements in the English and Kyrgyz languages. Furthermore, this article includes definitions and some idioms containing hand, shake, squeeze according to the Oxford and Academic Dictionary to show readers the figurative meanings of these common words. The current study was based on the books of writers Allan and Barbara Pease “The definite book of body language” 2004, Romana Lefevre “Rude hand gestures of the world”2011 etc. Key words: kinesics, body language, gestures, acoustics, applause, paralanguage, non-verbal communication, finger squeeze, perceptions, facial expressions. Аннотация. Бул макалада вербалдык эмес сүйлѳшүүнүн бѳлүгү болуп эсептелген “колдордун жандоо кыймылы”, алардын эки башка маданиятта колдонулушу, айырмачылыгы жана окшош жактары каралган. Макаланын максаты болуп “колдордун жандоо кыймылынын” мааниси, айырмасы жана эки маданиятта колдонулушу эсептелет. Ошону менен бирге, вербалдык эмес сүйлѳшүүнүн бѳлүгү болуп эсептелген “кинесика” илими каралган. Берилген макалада кѳрсѳтүлгѳндѳй, “кинесика” илими кыргыз маданиятында толугу менен изилденген эмес, ошого карабастан “кинесика” илиминин бѳлүгү болуп эсептелген “колдордун жандоо кыймылы” кыргыз элинин маданиятында кѳп колдонулат. Андан тышкары, “колдордун жандоо кыймылынын” бир нече түрү, англис жана кыргыз тилдеринде ма- селен аркылуу берилген.Тѳмѳнкү изилдѳѳ ишин жазууда чет элдик жазуучулардын эмгектери колдонулду. Түйүндүү сѳздѳр: кинесика, жандоо кыймылы, акустика,кол чабуулар, паралингвистика, вербалдык эмес баарлашуу,кол кысуу,кабыл алуу сезими. Аннотация. В данной статье рассматриваются сходства и различия “жестикуляции” и частота ее использования, в американской и кыргызской культурах. Следовательно, здесь было упомянуто понятие “кинесика” как основная часть языка тела. Как указано в статье, “кинесика” не была представлена в кыргызской культуре достаточно хорошо, хотя кыргызский народ часто использует жестикуляцию в повседневной жизни. Исследовательская работа начинается с общего определения “жестикуляции” как части языка тела и несколько категорий жестикуляции, таких как: сжатие пальца, слабое рукопожатие, рукопожатие двумя руками, были объяснены несколькими примерами на английском и кыргызском языках. Кроме того, эта статья включает определения слов “рука”, “рукопожатие”, “сжатие” и некоторые идиомы, содержащие данных слов согласно Оксфордскому и Академическому словарю, чтобы показать читателям их образное значение. Данное исследование было основано на книгах писателей Аллана и Барбары Пиз «Определенная книга языка тела» 2004 года, Романа Лефевра «Грубые жестикуляции мира» 2011 года и т.д. Ключевые слова: кинесика, язык жестов, жесты, акустика, аплодисменты, паралингвистика, невербальная коммуникация, сжатие пальца, чувство восприятия, выражение лиц.


Sign in / Sign up

Export Citation Format

Share Document