Exercise, Oxidative Stress, and Antioxidants: A Review

1993 ◽  
Vol 3 (4) ◽  
pp. 356-375 ◽  
Author(s):  
Robert R. Jenkins

Elemental and gaseous oxygen presents a conundrum in that it is simultaneously essential for and potentially destructive to human life. Traditionally the ability to consume large volumes of oxygen has been assumed to be totally beneficial to the organism. In the past 10 years it has become clear that oxygen radicals are generated even during normal resting metabolism Nevertheless, such radicals are usually of no appreciable threat since a wide array of protective biochemical systems exist. However, under certain circumstances aerobic exercise may increase free radical production to a level that overwhelms those defenses. A broad array of nutrients such as vitamin C, vitamin E, p-carotene, and so forth are known to suppress such radical events. This paper reviews the status of our knowledge relative to the potential benefits of nutritional modification in augmenting the organism's normal defense against harmful radical chemistry.

Author(s):  
Sergey S. Avanesov ◽  

The article investigates the problem of the mutual relationship of the autobiographical text, personal existence, and human culture. The subject of analysis is Nikolai Berdyaev’s book “Self-knowledge”. The research context is set by three initial positions: culture is made up of personal biographies; the connection of a private biography with a common human culture is carried out through an autobiography; cultural memory communicates to the facts of individual life the status of universally significant events that persist outside of time. On the example of Berdyaev’s autobiographical text, the purpose, structure, language, and motives of a philosophical autobiography are considered. The article shows that the leading motives of the author of “Self-knowledge” are the defense of singular existence and the fight against the destructive action of time. For Berdyaev, it is very important to emphasize the independence of the history of his personal life from the general history of the world, and also to free individual memory from its connection with chronology. Therefore, the autobiography does not list the facts in their historical sequence but shows the whole life at once and in its entirety. Further, the author of the autobiography not only records the events of the past but selects them for publication in his text: he retains in his memory only that which has a high value for culture. Finally, it is the autobiography that makes it possible to bridge the gap between the past and the present: all important events of the past are constantly relevant, which means they belong to eternity. Defragmentation of episodes, axiological selection of events, the relevance of the past – these are the results that are achieved on the path of the philosopher’s recollection of himself. Autobiography allows the philosopher to discover the uniqueness of his existence, but at the same time it reveals the imperfection of this existence to him. The power of time over human life is expressed as the threat of inevitable death that awaits every person in the future. Memory, according to Berdyaev, should become not only a tool for remembering the past but also a weapon in the fight against death. Victory over death is achieved through participation in the eternal meaning of culture, which the author discovers not in empirical history, but in his inner personal life. The ahistoricism of this meaning is emphasized by the nonlinear structure of the autobiographical text and the aphoristic nature of its language. In addition, the author sees himself in this text sub specie aeternitatis as an unchanging, eternal subject. The assertion of one’s own singularity and immutability, according to Berdyaev, turns out to be the main means of preserving universal human culture from destruction in time. Consequently, (1) autobiography is the most philosophical genre of all philosophical genres, (2) any philosopher can most successfully develop his doctrine only in the sphere of personal memories, (3) an autobiographical book is the main philosophical work of Berdyaev. It is in this book that the philosopher achieves the ideal of existential philosophy: the coincidence of personal life, individual thinking, text, and culture.


2016 ◽  
Vol 18 (3) ◽  
pp. 161-224
Author(s):  
ʿĀʾiḍ B. Sad Al-Dawsarī

The story of Lot is one of many shared by the Qur'an and the Torah, and Lot's offer of his two daughters to his people is presented in a similar way in the two books. This article compares the status of Lot in the Qur'an and Torah, and explores the moral dimensions of his character, and what scholars of the two religions make of this story. The significance of the episodes in which Lot offers his daughters to his people lies in the similarities and differences of the accounts given in the two books and the fact that, in both the past and the present, this story has presented moral problems and criticism has been leveled at Lot. Context is crucial in understanding this story, and exploration of the ways in which Lot and his people are presented is also useful in terms of comparative studies of the two scriptures. This article is divided into three sections: the first explores the depiction of Lot in the two texts, the second explores his moral limitations, and the third discusses the interpretations of various exegetes and scholars of the two books. Although there are similarities between the Qur'anic and Talmudic accounts of this episode, it is read differently by scholars from the two religions because of the different contexts of the respective accounts.


Author(s):  
Ihsan Sanusi

This article in principle wants to examine the history of the emergence of the conflict of Islamic revival in Minangkabau starting from the Paderi Movement to the Youth in Minangkabau. Especially in the initial period, namely the Padri movement, there was a tragedy of violence (radicalism) that accompanied it. This study becomes important, because after all the reformation of Islam began to be realized by reforming human life in the world. Both in terms of thought with the effort to restore the correct understanding of religion as it should, from the side of the practice of religion, namely by reforming deviant practices and adapted to the instructions of the religious texts (al-Qur'an and sunnah), and also from the side of strengthening power religion. In this case the research will be directed to the efforts of renewal by the Padri to the Youth towards the Islamic community in Minangkabau. To discuss this problem used historical research methods. Through this method, it is tested and analyzed critically the records and relics of the past. In analyzing the data in this research basically used approach or interactive analysis model by Miles and Huberman. In this analysis model, the three components of the analysis are data reduction, data presentation, and conclusion drawing or verification, the activity is carried out in an interactive form with the process of collecting data as a process that continues, repeats, and continues to form acycle.


Metahumaniora ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 54
Author(s):  
Erlina Zulkifli Mahmud ◽  
Taufik Ampera ◽  
Yuyu Yohana Risagarniwa ◽  
Inu Isnaeni Sidiq

Kedudukan dan fungsi bahasa sebagai alat komunikasi manusia mencakup seluruh bidang kehidupan termasuk ilmu pengetahuan antara lain terkait sejarah peradaban manusia; bagaimana manusia mempertahankan hidupnya, bagaimana manusia memperlakukan alam, bagaimana alam menyediakan segala kebutuhan manusia. Apa yang dilakukan manusia saat ini, saat lampau, dan apa yang dilakukan manusia jauh di masa prasejarah, bagaimana kondisi alam di masa-masa tersebut, apa perubahan dan perkembangannya, dapat didokumentasikan melalui bahasa, divisualisasikan kembali, lalu dipajang sebagai salah satu upaya konversai dan preservasi dalam satu institusi yang disebut museum. Penelitian ini membahas kedudukan dan fungsi bahasa dalam permuseuman. Bagaimana kedudukan dan fungsi bahasa dalam permuseuman baik dalam informasi yang disampaikan oleh pemandu wisata museumnya maupun yang terpajang menyertai benda-benda dan gambar-gambar merupakan tujuan dari penelitian ini. Metode penelitian yang digunakan adalah gabungan antara metode lapangan dan metode literatur. Hasil penelitian menunjukkan bahwa secara umum kedudukan bahasa Indonesia berada pada urutan pertama setelah Bahasa Inggris dan keberadaan kedua bahasa dalam permuseuman ini melibatkan dua fungsi utama bahasa, yakni fungsi komunikatif dan fungsi informatif.The existence and function of language  as a medium of communication covers all fields of human life including knowledge, one of them is the history of human civilization; how humans survived, how human utilized nature for their lives, and how nature provides all the necessities for humans. What humans have been doing now, what they have done in the past and far before that in the pre-history time, how the conditions of the nature at those times were and what changes as well as progresses occurred are documented using language, then re-visualized,  displayed as one of conservation and preservation acts in an institution called museum. This research discusess the existence and function of language in museums. How important the existence of a language in museums and what language functions used in museums both in informations given by the museum guides and on the displays accompanying objects and pictures are the aims of this research. The methods used are the combination between field research and library research. The results show that generally the existence of Indonesian language plays more important role than English and both languages have two main functions; communicative function and informative function.     


2020 ◽  
Vol 63 (2) ◽  
pp. 123-143
Author(s):  
Elena I. Yaroslavtseva

The article examines the impact of digitalization on human life and intellectual experience. The development of computer technology demands an understanding of new aspects of human development and requires a capability to overcome not only external conditions but also ourselves. Entering a new level of development cannot imply a complete rejection of previous dispositions, but should be accompanied by reflection on personal experience and by the quest for new forms of interaction in society and with nature. Communicative and cognitive activity of a person has an ontological basis and relies on processes that actually evolve in nature. Therefore, the creation of new objects is always associated with the properties of natural material and gives rise to new points of support in the development of man. The more audacious his projects, the more important it is to preserve this connection to nature. It is always the human being who turns out to be the initiator who knows how to solve problems. The conformity of complex technical systems to nature is not only a goal but also a value of meaningful construction of development perspectives. The key to the nature orientation of the modern digital world is the human being himself, who keeps all the secrets of the culture of his natural development. Therefore, the proposed by the Russian philosopher V.S. Stepin post-non-classical approach, based on the principle of “human-sizedness,” is an important contribution to contemporary research because it draws attention to the “human – machine” communication, to the relationship between a person and technological systems he created. The article concludes that during digital transformation, a cultural conflict arises: in an effort to solve the problems of the future, a person equips his life with devices that are designed to support him, to expand his functionality, but at the same time, the boundaries of humanity become dissolved and the forms of human activity undergo simplification. Transhumanism engages society in the fight against fears of vulnerability and memory loss and ignores the flexibility and sustainability of natural foundation.


2012 ◽  
Vol 18 (1) ◽  
Author(s):  
Hunud Abia Kadouf ◽  
Umar Aimhanosi Oseini ◽  
Ainul Jaria Maidin

The primary function of Ahmad Ibrahim Kulliyyah (Faculty) of Laws, at the very beginning of its inception, was that of teaching civil law and Sharî’ah subjects. As it matured, its vision has been varied from teaching to that of research with the aim of attaining the status of a full research institution that provides both quality research and best legal education in the region. Similar to other institutions of higher education in Malaysia, the responsibility of research is a shared function of both graduate students and the academic staff. The research output, on the part of the students is mostly composed of either Master Dissertations or PhD Theses. The academic members of the Faculty, however, are involved either in direct research, individually or jointly, supervision, and publications of their findings. By investigating and analyzing factors influencing research activities at AIKOL in the past twenty years, the researchers will be able to identify the general trends and development of research as it unfolded over years. The researchers hope that the policymakers, at both Faculty and University levels, will use the findings to improve research quality by boldly addressing the problems hampering research progress at AIKOL.


Author(s):  
Irnawati Irnawati ◽  
Florentinus Dika Octa Riswanto ◽  
Sugeng Riyanto ◽  
Sudibyo Martono ◽  
Abdul Rohman

Several oils have been reported as nutritional source and providing potential benefits for human life. Oil adulteration becomes major issue due to economical attempt to reduce the price of high cost oils. The employment of FTIR spectroscopy combined with Principal Component Analysis (PCA) technique can be applied in oils authentication study. Two of R software packages namely factoextra and FactoMineR were exploited to perform PCA for analysis sixteen various oils from market in Yogyakarta, Indonesia. The results showed that PCA model have been successfully generated using these two statistical packages. Individual plot, variable plot, and biplot were presented to visualize the PCA model. It was also proved that extra virgin olive oil (EVOO) has similar chemical characteristics to palm oil (PO) as reported in the previous study.


Author(s):  
Gerald O’Collins, SJ

Help towards understanding the human and religious functions of tradition comes from such sociologists as Peter Berger, Anthony Giddens, and Edward Shils. Tradition by Shils continues to illuminate how, although human beings modify inherited beliefs and change traditional patterns of behaviour, the new always incorporates something of the past. Shils takes a global view of tradition; it embodies everything individuals inherit when born into the world. It is through tradition that new members of society begin to identify themselves. The bearers of tradition may be not only official but also ‘learned’ and ‘ordinary’. Shils dedicates many further pages to changes in traditions and the forces leading to these changes. What sociologists like Giddens say about globalization also affects theological reflection on tradition. Surprisingly, the very few theologians who have published on tradition have ignored the sociologists.


Author(s):  
Caroline Fleay

Throughout the past forty years various leaders from both major political parties in Australia have categorized the arrival by boat of people seeking asylum as a “crisis” and the people themselves as “illegal.” This is despite Australia being a signatory to the United Nations Convention Relating to the Status of Refugees, and receiving relatively few people who seek asylum compared with many other countries. Punitive government policies and processes have further reinforced these representations, such that “crisis” and “illegal” can now be understood as both categories of analysis and practice. The repeated use of such categories may be helping to produce and reproduce prejudice and racism and obscure the needs and experiences of people seeking asylum.


Universe ◽  
2021 ◽  
Vol 7 (6) ◽  
pp. 163
Author(s):  
Verónica Motta ◽  
Miguel A. García-Aspeitia ◽  
Alberto Hernández-Almada ◽  
Juan Magaña ◽  
Tomás Verdugo

The accelerated expansion of the Universe is one of the main discoveries of the past decades, indicating the presence of an unknown component: the dark energy. Evidence of its presence is being gathered by a succession of observational experiments with increasing precision in its measurements. However, the most accepted model for explaining the dynamic of our Universe, the so-called Lambda cold dark matter, faces several problems related to the nature of such energy component. This has led to a growing exploration of alternative models attempting to solve those drawbacks. In this review, we briefly summarize the characteristics of a (non-exhaustive) list of dark energy models as well as some of the most used cosmological samples. Next, we discuss how to constrain each model’s parameters using observational data. Finally, we summarize the status of dark energy modeling.


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