scholarly journals Antonio Chamorro Daza (1903-2003): Scientific production during the first years of exile (1937-1945)

2021 ◽  
Vol 106 (106(812)) ◽  
pp. 44-53
Author(s):  
E. Barranco-Castillo ◽  
I. Melgares-Moreno ◽  
F. Girón-Irueste
Keyword(s):  
Research Work ◽  
Scientific Production ◽  
Point Of View ◽  
Google Scholar ◽  
Important Research ◽  
Research Institutions ◽  
Endocrine Glands ◽  
Practical Point ◽  
Metasearch Engine ◽  
Almost All

Objetives: The main aim of our work is to highlight the importance of Chamorro’s discoveries in the fields of endocrinology, gynaecology, reproduction and oncology. Methods: Evaluation of the bibliometric impact of Chamorro’s work using Google Scholar, PubMed, Scopus and Gallica. Results: Between 1937 and 1945 Chamorro carried out important research work, the results of which provided valuable discoveries about the activity of the main endocrine glands. Discussion: To achieve our objective, Google Scholar has been the most profitable metasearch engine from a practical point of view, having recognized almost all of the articles published by Chamorro, although having ignored some of them it could be thought that the overall impact of this author is higher than that which has been found. Conclusions: These findings were reflected in the most prestigious journals and widely disseminated in U.S. research institutions, amongst others. In Spain, however, they were ignored. Maybe it’s time to spread it.

Structural Differences in Masticated and Unmasticated Raw Rubber Mixtures and Vulcanizates, and Their Significance from a Practical Point of View

1930 ◽  
Vol 3 (1) ◽  
pp. 35-37
Author(s):  
E. A. Hauser ◽  
M. Hünemörder
Keyword(s):  
Theoretical Basis ◽  
Heterogeneous System ◽  
Point Of View ◽  
Rubber Mixture ◽  
Rubber Industry ◽  
Practical Point ◽  
Current Belief ◽  
Structural Differences ◽  
Almost All ◽  
Individual Particles

Abstract The use of latex in certain branches of the rubber industry is even today looked upon with a great deal of skepticism in technical circles. This point of view rests not so much on ignorance of actual progress in this field as on the still prevalent idea that a mixture of latex and fillers can never give a useful product and one comparable in quality with a raw rubber mixture. This belief is based on the fact that latex is a decidedly heterogeneous system, since the rubber in latex is distributed throughout in the form of individual particles. In spite, however, of this current belief there is now satisfactory evidence to show that products made from latex mixtures without mastication of the rubber are superior in almost all their physical properties to products made from raw rubber in the conventional way. This superiority is in evidence particularly in the higher tensile strength and elasticity and in the incomparably better resistance to tearing. The experiments to be described, which are based in part on work already published elsewhere and on still unpublished investigations of Miss Hünemörder and the author, will serve to make clear the theoretical basis on which these facts rest and will furthermore indicate a few points which in our opinion are worthy of special consideration in the preparation of latex mixtures.

scholarly journals Theoretical Astrophysics in the Byurakan Observatory (1946 - 2021)

2021 ◽  
pp. 186-235
Author(s):  
A. G. Nikoghossian
Keyword(s):  
Observational Data ◽  
Radiation Transfer ◽  
Research Work ◽  
Point Of View ◽  
The Other ◽  
Theoretical Physics ◽  
General Idea ◽  
Special Place ◽  
The One ◽  
Almost All

The purpose of this review is to give a general idea of the results on theoretical astrophysics investigations carried out at the Byurakan Observatory during the period of its existence. A special place in the review is given to the research work in the Department of "Theoretical Astrophysics", founded in 1965. The review consists of two parts. The first part is mainly devoted to works on the theory of radiation transfer somehow related to Ambartsumian's ideas developed in his fundamental studies of the 40-50s of the last century. The second part presents, on the one hand, the results which are of importance for theoretical physics in general and, on the other hand, gives their application to the interpretation of observational data of various cosmic objects. In order to get an idea of the importance of each result, the background and prerequisites of the research are given, indicating its significance from the point of view of astrophysics. Naturally, the most important results are presented in more detail. At the same time, the review in one way or another includes almost all of the most important results obtained by various members of the department at different times. It should be noted that works on some other areas of theoretical astrophysics are not included in the review, since they are presented in other reviews of this series.

scholarly journals On Ciphers that Continuously Access the Non-Volatile Key

2017 ◽  
pp. 52-79 ◽  
Author(s):  
Vasily Mikhalev ◽  
Frederik Armknecht ◽  
Christian Müller
Keyword(s):  
Point Of View ◽  
Limited Area ◽  
Practical Point ◽  
Non Volatile Memory ◽  
Volatile Memory ◽  
Encryption Decryption ◽  
The One ◽  
Almost All ◽  
The Impact ◽  
Memory Techniques

Due to the increased use of devices with restricted resources such as limited area size, power or energy, the community has developed various techniques for designing lightweight ciphers. One approach that is increasingly discussed is to use the cipher key that is stored on the device in non-volatile memory not only for the initialization of the registers but during the encryption/decryption process as well. Recent examples are the ciphers Midori (Asiacrypt’15) and Sprout (FSE’15). This may on the one hand help to save resources, but also may allow for a stronger key involvement and hence higher security. However, only little is publicly known so far if and to what extent this approach is indeed practical. Thus, cryptographers without strong engineering background face the problem that they cannot evaluate whether certain designs are reasonable (from a practical point of view) which hinders the development of new designs.In this work, we investigate this design principle from a practical point of view. After a discussion on reasonable approaches for storing a key in non-volatile memory, motivated by several commercial products we focus on the case that the key is stored in EEPROM. Here, we highlight existing constraints and derive that some designs, based on the impact on their throughput, are better suited for the approach of continuously reading the key from all types of non-volatile memory. Based on these findings, we improve the design of Sprout for proposing a new lightweight stream cipher that (i) has a significantly smaller area size than almost all other stream ciphers and (ii) can be efficiently realized using common non-volatile memory techniques. Hence, we see our work as an important step towards putting such designs on a more solid ground and to initiate further discussions on realistic designs.

GREEN OPEN ACCESS IN KENYA: A REVIEW OF THE CONTENT, POLICIES AND USAGE OF INSTITUTIONAL REPOSITORIES

Mousaion ◽  
2016 ◽  
Vol 33 (3) ◽  
pp. 25-54
Author(s):  
Wanyenda Leonard Chilimo
Keyword(s):  
Developing Countries ◽  
Open Access ◽  
Descriptive Study ◽  
Google Scholar ◽  
Research Institutions ◽  
Journal Articles ◽  
Content Type ◽  
Institutional Repositories ◽  
Current State ◽  
Theses And Dissertations

 There is scant research-based evidence on the development and adoption of open access (OA) and institutional repositories (IRs) in Africa, and in Kenya in particular. This article reports on a study that attempted to fill that gap and provide feedback on the various OA projects and advocacy work currently underway in universities and research institutions in Kenya and in other developing countries. The article presents the findings of a descriptive study that set out to evaluate the current state of IRs in Kenya. Webometric approaches and interviews with IR managers were used to collect the data for the study. The findings showed that Kenya has made some progress in adopting OA with a total of 12 IRs currently listed in the Directory of Open Access Repositories (OpenDOAR) and five mandatory self-archiving policies listed in the Registry of Open Access Repositories Mandatory Archiving Policies (ROARMAP). Most of the IRs are owned by universities where theses and dissertations constitute the majority of the content type followed by journal articles. The results on the usage and impact of materials deposited in Kenyan IRs indicated that the most viewed publications in the repositories also received citations in Google Scholar, thereby signifying their impact and importance. The results also showed that there was a considerable interest in Swahili language publications among users of the repositories in Kenya.

Tertiary Nitrification Pilot Plants on Parisian Waste Water

1990 ◽  
Vol 22 (1-2) ◽  
pp. 347-352 ◽  
Author(s):  
C. Paffoni ◽  
B. Védry ◽  
M. Gousailles
Keyword(s):  
Waste Water ◽  
Metropolitan Area ◽  
Fixed Bed ◽  
Point Of View ◽  
Operating Conditions ◽  
Research Center ◽  
Daily Output ◽  
Practical Point ◽  
Fixed Bed Reactors

The Paris Metropolitan area, which contains over eight million inhabitants, has a daily output of about 3 M cu.meters of wastewater, the purification of which is achieved by SIAAP (Paris Metropolitan Area Sewage Service) in both Achères and Valenton plants. The carbon pollution is eliminated from over 2 M cu.m/day at Achères. In order to improve the quality of output water, its tertiary nitrification in fixed-bed reactors has been contemplated. The BIOFOR (Degremont) and BIOCARBONE (OTV) processes could be tested in semi-industrial pilot reactors at the CRITER research center of SIAAP. At a reference temperature of 13°C, the removed load is approximately 0.5 kg N NH4/m3.day. From a practical point of view, it may be asserted that in such operating conditions as should be at the Achères plant, one cubic meter of filter can handle the tertiary nitification of one cubic meter of purified water per hour at an effluent temperature of 13°C.

scholarly journals On the Design of Outdoor Leader-Follower UAV-Formation Controllers from a Practical Point of View

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Lucas Vago Santana ◽  
Alexandre Santos Brandao ◽  
Mario Sarcinelli-Filho
Keyword(s):  
Point Of View ◽  
Practical Point

scholarly journals How ethical challenges of covert observations can be met in practice

2021 ◽  
pp. 174701612110082
Author(s):  
Nicole Podschuweit
Keyword(s):  
Social Research ◽  
Role Playing ◽  
Great Distance ◽  
Point Of View ◽  
Ethical Challenges ◽  
Research Subjects ◽  
Written Information ◽  
Ethical Debate ◽  
The People ◽  
Almost All

This paper aims to bring into the ethical debate on covert research two aspects that are neglected to date: the perspective of the research subjects and the special responsibility of investigators towards their observers. Both aspects are falling behind, especially in quantitative social research. From a methodological point of view, quantitative forms of covert observation involve a great distance between the researcher and the research subjects. When human observers are involved, the focus is usually on the reliable application of the measuring instrument. Therefore, herein, a quantitative study is used as an example to show how the protection needs of both the observed persons and the observers can be met in practice. The study involved 40 student observers who covertly captured everyday conversations in real-world settings (e.g. in cafés or trains) by a highly standardised observation scheme. The study suggests that the anonymity of the research subjects and their trust in the observers are crucial for their subsequent consent. However, many participants showed only little or even no interest in the written information they were provided. Further, this study strongly emphasises how mentally stressful covert observations are to the observers. Almost all observers were worried in advance that the people they were observing would prematurely blow their cover and confront them. Role-playing and in-depth discussions in teams are good strategies to alleviate such and other fears and to prepare student assistants well for their demanding work in the field.

Quantitative Analysis of Microstructure and Modeling of Sintering

2009 ◽  
Vol 624 ◽  
pp. 1-18 ◽  
Author(s):  
Jean Marc Chaix
Keyword(s):  
Image Analysis ◽  
Input Data ◽  
3D Imaging ◽  
Point Of View ◽  
Size Distributions ◽  
Practical Point ◽  
The Past ◽  
Modeling Techniques ◽  
Mean Size ◽  
Sintering Mechanisms

Microstructure is the key scale to understand and describe sintering mechanisms and their consequences at the macroscopic level. As modeling techniques are continuously developing, the need for input data and comparison with more and more accurate descriptions of the evolution is expected to create a growing demand for quantitative microstructure data. Image analysis is the classic way to get these data. This paper reviews the practical use and progresses of this old technique in the sintering literature during the past and recent years. The place of basic tools and more recent ones, such as 3D imaging, are discussed from a practical point of view accounting from sintering models needs: mean size and size distributions in pores and grains, homogeneity, sintering trajectories…

Technology and the management imagination

2005 ◽  
Vol 13 (3) ◽  
pp. 533-563 ◽  
Author(s):  
Fred Phillips
Keyword(s):  
Corporate Culture ◽  
Point Of View ◽  
Local Culture ◽  
Social Consensus ◽  
Practical Point ◽  
Research Questions ◽  
Crisis Managers

This paper explores the evolution of the techno-management imagination (TMI). This is the process by which, in times of crisis, managers think not just out of the box, but out of the very reality in which the box resides. Tacit social consensus, also known as corporate culture, can lead to a shared, implicit, and incorrect view that certain actions are impossible. TMI transcends local culture, accessing technological solutions that are unknown and/or unimagined. Members of the organization tend to call such solutions “magic”. The paper looks at social, perceptual, and managerial aspects of magic from a practical point of view that is grounded in research. It examines the risks of TMI, and concludes with suggested perspectives and research questions for management scientists and cognitive scientists.

Towards a New Model of Conversion Careers: the Impact of Personality and Contingency Factors

Exchange ◽  
2005 ◽  
Vol 34 (2) ◽  
pp. 149-166 ◽  
Author(s):  
Henri Gooren
Keyword(s):  
Religious Conversion ◽  
Religious Affiliation ◽  
Point Of View ◽  
Small Scale ◽  
Central Question ◽  
Roman Catholicism ◽  
Guatemala City ◽  
Practical Point ◽  
The Poor ◽  
The Impact

AbstractThe central question of this article — why people may change their religious affiliation or become disaffiliated — is relevant from both an academic and a practical point of view. The article makes first an inventory of existing literature on religious conversion. Next I sketch the contours of the new conversion careers approach I am currently working on. I make some comparisons with a region that is not usually mentioned in the literature on conversion: Latin America. These comparisons are based on my earlier fieldwork on Roman Catholicism, Pentecostalism, and Mormonism in Costa Rica and Guatemala (H. Gooren, Rich among the Poor: Church, Firm, and Household among Small-scale Entrepreneurs in Guatemala City, Amsterdam: Thela Thesis 1999).

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