scholarly journals Colloids and Interfaces in Oil Recovery

2019 ◽  
Vol 3 (2) ◽  
pp. 50
Author(s):  
Spencer E. Taylor

The role of surface and colloid chemistry in the petroleum industry is of great importance to the many current and future challenges confronting this sector [...]

2017 ◽  
Vol 7 (2) ◽  
pp. 20160151 ◽  
Author(s):  
Angela Logan ◽  
Michael P. Murphy

Our understanding of the role of mitochondria in biomedical sciences has expanded considerably over the past decade. In addition to their well-known metabolic roles, mitochondrial are also central to signalling for various processes through the generation of signals such as ROS and metabolites that affect cellular homeostasis, as well as other processes such as cell death and inflammation. Thus, mitochondrial function and dysfunction are central to the health and fate of the cell. Consequently, there is considerable interest in better understanding and assessing the many roles of mitochondria. Furthermore, there is also a growing realization that mitochondrial are a promising drug target in a wide range of pathologies. The application of interdisciplinary approaches at the interface between chemistry and biology are opening up new opportunities to understand mitochondrial function and in assessing the role of the organelle in biology. This work and the experience thus gained are leading to the development of new classes of therapies. Here, we overview the progress that has been made to date on exploring the chemical biology of the organelle and then focus on future challenges and opportunities that face this rapidly developing field.


2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Rilan Bai ◽  
Zheng Lv ◽  
Xiao Chen ◽  
Hanfei Guo ◽  
Ling Bai ◽  
...  

In recent years, precision medical detection techniques experienced a rapid transformation from low-throughput to high-throughput genomic sequencing, from multicell promiscuous detection to single-cell precision sequencing. The emergence of liquid biopsy technology has compensated for the many limitations of tissue biopsy, leading to a tremendous transformation in precision detection. Precision detection techniques contribute to monitoring disease development more closely, evaluating therapeutic effects more scientifically, and developing new targets and new drugs. In the future, the role of precision detection and the joint detection in epigenetics, rare gene detection, individualized targeted therapy, and multigene targeted drug combination therapy should be extensively explored. This article reviews the changes in precision medical detection technology in the era of precision medicine, as well as the development, clinical application, and future challenges of liquid biopsy.


2015 ◽  
Vol 1125 ◽  
pp. 200-204 ◽  
Author(s):  
Wan Rosli Wan Sulaiman ◽  
A.J. Adala ◽  
Radzuan Junin ◽  
Issham Ismail ◽  
Abdul Razak Ismail ◽  
...  

The role of nanoparticles in enhancing oil recovery from oil reservoirs is an increasingly important topic of research. Nanoparticles have the properties that are potentially useful for enhanced oil recovery (EOR) processes. One of the important roles of nanoparticles in petroleum industry is to change the wettability of reservoir rocks. The main objective of this study is to investigate the efficiency of silica nanoparticles in enhancing oil recovery in the presence of formation brine with different concentrations. The methodology of this study involved several laboratory tests. It is divided into two main sections with the aim of enhance oil recovery of oil wet reservoirs. First, the wettability alteration and oil–water interfacial tension modification induced by introducing different concentrations of nanosilica (0.01, 0.05, 0.1wt %) and different concentrations of NaCl formation brine (0.3, 1, 2, 3, 4 wt %) was studied by experimental approach. Second, the displacement test for determining oil recovery for those different concentrations of nanosilica and formation brine. There exists an optimal nanoslica concentration for varying salinity and an optimal salinity for varying nanosilica concentration at which the wettability alteration on oil wet limestone is the maximum for the study. The results revealed that IFT and contact angle tests were found to have the same optimal salinity (0.3wt %) and optimal nanosilica concentration (0.1wt %). Furthermore the highest value of displacement efficiency obtained at nanosilica (0.05wt %) and salinity (0.3 wt %) NaCl. As conclusion, as the salinity increases the extent of wettability alteration, IFT reduction, and enhanced oil recovery by nanosilica decreases.


Author(s):  
Benjamin F. Trump ◽  
Irene K. Berezesky ◽  
Raymond T. Jones

The role of electron microscopy and associated techniques is assured in diagnostic pathology. At the present time, most of the progress has been made on tissues examined by transmission electron microscopy (TEM) and correlated with light microscopy (LM) and by cytochemistry using both plastic and paraffin-embedded materials. As mentioned elsewhere in this symposium, this has revolutionized many fields of pathology including diagnostic, anatomic and clinical pathology. It began with the kidney; however, it has now been extended to most other organ systems and to tumor diagnosis in general. The results of the past few years tend to indicate the future directions and needs of this expanding field. Now, in addition to routine EM, pathologists have access to the many newly developed methods and instruments mentioned below which should aid considerably not only in diagnostic pathology but in investigative pathology as well.


2014 ◽  
Vol 11 (01) ◽  
pp. 35-42
Author(s):  
M. Hermans

SummaryThe author presents his personal opinion inviting to discussion on the possible future role of psychiatrists. His view is based upon the many contacts with psychiatrists all over Europe, academicians and everyday professionals, as well as the familiarity with the literature. The list of papers referred to is based upon (1) the general interest concerning the subject when representing ideas also worded elsewhere, (2) the accessibility to psychiatrists and mental health professionals in Germany, (3) being costless downloadable for non-subscribers and (4) for some geographic aspects (e.g. Belgium, Spain, Sweden) and the latest scientific issues, addressing some authors directly.


2015 ◽  
Vol 33 (1) ◽  
pp. 1-15
Author(s):  
Henrietta Bannerman

John Cranko's dramatic and theatrically powerful Antigone (1959) disappeared from the ballet repertory in 1966 and this essay calls for a reappraisal and restaging of the work for 21st century audiences. Created in a post-World War II environment, and in the wake of appearances in London by the Martha Graham Company and Jerome Robbins’ Ballets USA, I point to American influences in Cranko's choreography. However, the discussion of the Greek-themed Antigone involves detailed consideration of the relationship between the ballet and the ancient dramas which inspired it, especially as the programme notes accompanying performances emphasised its Sophoclean source but failed to recognise that Cranko mainly based his ballet on an early play by Jean Racine. As Antigone derives from tragic drama, the essay investigates catharsis, one of the many principles that Aristotle delineated in the Poetics. This well-known effect is produced by Greek tragedies but the critics of the era complained about its lack in Cranko's ballet – views which I challenge. There is also an investigation of the role of Antigone, both in the play and in the ballet, and since Cranko created the role for Svetlana Beriosova, I reflect on memories of Beriosova's interpretation supported by more recent viewings of Edmée Wood's 1959 film.


Author(s):  
Jonathan Evans

The Many Voices of Lydia Davis shows how translation, rewriting and intertextuality are central to the work of Lydia Davis, a major American writer, translator and essayist. Winner of the Man Booker International Prize 2013, Davis writes innovative short stories that question the boundaries of the genre. She is also an important translator of French writers such as Maurice Blanchot, Michel Leiris, Marcel Proust and Gustave Flaubert. Translation and writing go hand-in-hand in Davis’s work. Through a series of readings of Davis’s major translations and her own writing, this book investigates how Davis’s translations and stories relate to each other, finding that they are inextricably interlinked. It explores how Davis uses translation - either as a compositional tool or a plot device - and other instances of rewriting in her stories, demonstrating that translation is central for understanding her prose. Understanding how Davis’s work complicates divisions between translating and other forms of writing highlights the role of translation in literary production, questioning the received perception that translation is less creative than other forms of writing.


2002 ◽  
Vol 4 (2) ◽  
pp. 127-139 ◽  
Author(s):  
Ian Patterson

This article addresses the increasingly popular approach to Freud and his work which sees him primarily as a literary writer rather than a psychologist, and takes this as the context for an examination of Joyce Crick's recent translation of The Interpretation of Dreams. It claims that translation lies at the heart of psychoanalysis, and that the many interlocking and overlapping implications of the word need to be granted a greater degree of complexity. Those who argue that Freud is really a creative writer are themselves doing a work of translation, and one which fails to pay sufficiently careful attention to the role of translation in writing itself (including the notion of repression itself as a failure to translate). Lesley Chamberlain's The Secret Artist: A Close Reading of Sigmund Freud is taken as an example of the way Freud gets translated into a novelist or an artist, and her claims for his ‘bizarre poems' are criticized. The rest of the article looks closely at Crick's new translation and its claim to be restoring Freud the stylist, an ordinary language Freud, to the English reader. The experience of reading Crick's translation is compared with that of reading Strachey's, rather to the latter's advantage.


2020 ◽  
Vol 11 (SPL1) ◽  
pp. 967-971
Author(s):  
Poonam Thakre ◽  
Waqar M. Naqvi ◽  
Trupti Deshmukh ◽  
Nikhil Ingole ◽  
Sourabh Deshmukh

The emergence in China of 2019 of severe acute respiratory syndrome coronavirus2 (SARS-CoV-2) previously provisionally names 2019-nCoV disease (COVID19) caused major global outbreak and is a major public health problem. On 30 January 2020, the WHO declared COVID19 to be the sixth international public health emergency. This present pandemic has engrossed the globe with a high rate of mortality. As a front line practitioner, physiotherapists are expected to be getting in direct contact with patients infected with the virus. That’s why it is necessary for understanding the many aspects of their role in the identification, contains, reduces and treats the symptoms of this disease. The main presentation is the involvement of respiratory system with symptoms like fever, cough, sore throat, sneezing and characteristics of pneumonia leads to ARDS(Acute respiratory distress syndrome) also land up in multiorgan dysfunction syndrome. This text describes and suggests physiotherapy management of acute COVID-19 patients. It also includes recommendations and guidelines for physiotherapy planning and management. It also covers the guidelines regarding personal care and equipment used for treatment which can be used in the treatment of acute adult patients with suspected or confirmed COVID-19.


2013 ◽  
Vol 16 (1) ◽  
pp. 220-243
Author(s):  
Verena Mayer

How do we understand other minds? The current debate uses the iridescent term “empathy” to explain our quite different mindreading capacities. Since no alternatives seemed to be available the discussion has been mostly in a deadlock between “simulation theory” and “theory theory”. Only recently the relevance of phenomenological findings on the issue has been brought forward. In this paper Husserl’s two concepts of “Einfühlung”, as developed in the second volume of his Ideas, are set against the background of the latest discussion. Husserl’s explanation of empathy in terms of analogical experience highlights the transcendental role of empathy in the context of constitution. At the same time it may solve some of the many riddles left by the recent debate.


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