Studies on the physiology of the maternal placenta in the rat

1935 ◽  
Vol 119 (812) ◽  
pp. 1-31 ◽  
Keyword(s):  
Life Span ◽  
Sex Hormones ◽  
Point Of View ◽  
Experimental Investigations ◽  
Pregnant Rat ◽  
The Past ◽  
Female Sex Hormones ◽  
Recent Advances ◽  
Important Progress

Although a great many investigators have made adequate studies on the maternal placenta from the morphogenetic point of view, little attention has so far been given to the humoral conditions which make the formation of the placenta materna possible. Experimental investigations of the problems of placental physiology have as yet been few, and leave unanswered many important questions. Which are the factors determining the life span of the placenta, and what is responsible for its ageing ? In what way are the pregnancy changes influenced by the three structures —maternal placenta, foetal placenta, and embryo—present during gestation, and what is the role of each ? Recent advances in the physiology of reproduction have made it possible to attempt the elucidation of these problems under unusually favourable conditions. Of great importance was the observation of Leo Loeb that the maternal placenta could be produced experimentally in the rodent. Furthermore, we have reported experiments which showed that the embryos could be removed from the pregnant rat and mouse without interfering with the development of either the foetal or the maternal placenta. These facts, together with the important progress of the past few years in the physiology of the female sex hormones in general, have formed the basis for our present studies, and have enabled us to elucidate some of the problems indicated above.

The role of female sex hormones in the development and severity of allergic and non-allergic asthma

2009 ◽  
Vol 39 (10) ◽  
pp. 1477-1481 ◽  
Author(s):  
M. van den Berge ◽  
H. I. Heijink ◽  
A. J. M. van Oosterhout ◽  
D. S. Postma
Keyword(s):  
Allergic Asthma ◽  
Sex Hormones ◽  
Female Sex ◽  
Female Sex Hormones

scholarly journals Malaysia’s Vision 2020 and the Role of leadership in Economic Development

2017 ◽  
Vol 13 (8) ◽  
pp. 49
Author(s):  
Mahmoud Safy Mahmoud ◽  
Hoda Mitkees
Keyword(s):  
National Development ◽  
Point Of View ◽  
Social Aspects ◽  
Vision 2020 ◽  
New Economic Policy ◽  
Developed Country ◽  
The Past ◽  
The Social ◽  
Economic Growth Rates

Malaysia has adopted several developmental plans since 1969 starting with the New Economic Policy (NEP), passing by the National Development Plan (NDP) and ending with the Vision 2020 adopted in 1991 under the rule of Mahathir Mohammed (1981-2003), whereby Malaysia has aimed to become a developed country by 2020. Looking for the future, Malaysia 2020 should build upon the older developmental plans; however there are some new elements that need to be considered if Malaysia is to continue on its successful developmental path. This paper aims at focusing on the issues that still need to be considered in Vision 2020 from an outsider point of view. This paper addresses the questions of what Malaysia’s economic plans adopted in the past which were able to achieve high economic growth rates while preserving at the same time the social aspects. And the paper focuses on trade policy in Malaysia under Mahathir rule, identifying how was it shaped and how likely it will continue in 2020. The paper identifies the challenges likely to be faced by Malaysia in the coming period and how such issues should be tackled in Vision 2020.

scholarly journals Role of Catecholamines in the Mediation of Peripheral Effects of Female Sex Hormones

1973 ◽  
Vol 23 (3) ◽  
pp. 349-354
Author(s):  
J.P. BARTHWAL ◽  
T.K. GUPTA ◽  
M.L. GUPTA ◽  
K.P. BHARGAVA
Keyword(s):  
Sex Hormones ◽  
Female Sex ◽  
Female Sex Hormones

Energy Legislation in the General System of Business Law

2016 ◽  
Vol 4 (8) ◽  
pp. 0-0
Author(s):  
Сергей Занковский ◽  
Sergey Zankovskiy
Keyword(s):  
Import Substitution ◽  
General System ◽  
Point Of View ◽  
Soviet Period ◽  
Business Law ◽  
The Past ◽  
Business Regulation ◽  
The Russian Federation ◽  
Energy Law

The article considers the problems of energy legislation in the context of improving the legislation on entrepreneurship. In the judgment of the author the construction of the energy legislation is a possibility provided it is of a centrifugal nature with the general principles making the basis for such acts attempted to solve the outstanding problems. One of such principles which is to be legislatively enacted could be the principle of import substitution adopted to do away with dependence on foreign-made goods. The role of energy law can only be understood provided we have the relevant contemporary system of laws. This can be possibly achieved from the doctrinal point of view. The author analyses legal business regulation existing in the pre revolutionary and soviet period. It helps to understand better what is to borrowed from the experience of the past to be used to regulate said relationships. The author calls for necessity to issue the Code of Laws of the Russian Federation as the first step to make legislation systematized. The next step to be taken could be the adoption of comprehensive legal acts, say, Energy Code which could eventually make so-called legislation blocks. The latter could , in turn, serve the basis for so-called central legislative act to regulate business law.

Potential role of female sex hormones in the pathophysiology of migraine

2007 ◽  
Vol 113 (2) ◽  
pp. 321-340 ◽  
Author(s):  
Saurabh Gupta ◽  
Suneet Mehrotra ◽  
Carlos M. Villalón ◽  
Mercedes Perusquía ◽  
Pramod R. Saxena ◽  
...  
Keyword(s):  
Sex Hormones ◽  
Potential Role ◽  
Female Sex ◽  
Female Sex Hormones

Experimental Investigations for Statistically Controlled Rapid Moulding Solution of Plastics Using Polyjet Printing

2010 ◽  
Author(s):  
Rupinder Singh ◽  
Varinderjit Singh ◽  
Manohar Singh Saini
Keyword(s):  
Plastic Material ◽  
Coordinate Measuring Machine ◽  
Dimensional Accuracy ◽  
Point Of View ◽  
Experimental Investigations ◽  
Economic Point ◽  
The Past ◽  
Measuring Machine ◽  
Plastic Components ◽  
Polyjet Printing

Rapid prototyping (RP) has been in evidence for the past twenty years and is being widely used in diverse areas, from the building of aesthetic and functional prototypes to the production of tools and moulds for technological prototypes. The purpose of the present study is to experimentally investigate statistically controlled rapid moulding (RM) solutions for plastic components using polyjet printing (PP). Starting from the identification of component/benchmark, prototypes with three different type of plastic material were prepared, at different orientations. Measurements on the coordinate measuring machine helped in calculating the dimensional tolerances of the components prepared. Some important mechanical properties were also compared to verify the suitability of the components. The study highlighted the best orientation, support material quantity and type of plastic material for the selected component from dimensional accuracy and economic point of view as RM solution for plastic components. Final components prepared are acceptable as per ISO standard UNI EN 20286-I (1995). This process ensures rapid production of statistically controlled pre-series technological prototypes and proof of concept at less production cost and time.

scholarly journals The role of female sex hormones in multiple sclerosis and its animal models

2017 ◽  
Vol 17 (1) ◽  
pp. 23-33
Author(s):  
Kaja Śmietanka ◽  
◽  
Bartosz Bielecki ◽  
Keyword(s):  
Multiple Sclerosis ◽  
Animal Models ◽  
Sex Hormones ◽  
Female Sex ◽  
Female Sex Hormones

scholarly journals Female Roles in La Cinta Dorada by María Manuela Reina and Models of the World

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Ana María Aguilar López ◽  
Marta Miguel Borge
Keyword(s):  
Internal Model ◽  
Point Of View ◽  
The Past ◽  
Male Characters ◽  
The World ◽  
And Gender ◽  
Psychological Balance ◽  
Over Time ◽  
Female Drama

Our model of the world that we perceive within ourselves, our conscience, in short, our psychological balance is influenced by our surroundings. Part of the input to which we are exposed in this immediate environment is related to texts, self-managed discourse, which can also influence our internal model of the world; hence they are deserving of our attention. In the same way as the models of the world that we construct throughout our lives, reality is not static and also changes as time goes by. From a social point of view, we can see that the roles of women in modern-day society and the ways that those roles can be perceived today are a consequence of changes initiated in the past within different areas and in a prolonged process over time up until our day. With the aim of evaluating whether female drama has contributed to that change, we present an analysis in this paper of the play La Cinta Dorada [The Golden Ribbon] by María Manuela Reina, written and set in the 1980s, a decade that for Spain implied a more obvious abandonment of the most traditional conceptions of the role of women. In the analysis of the play, we see how the models of the world of the older people are counterposed with those of the younger people, a generational divide that is enriched with the gender difference, as we also analyze how the psychological structures of the female and male characters confront the clichés pertaining to another era in reference to such topics as success, infidelity, matrimony, and gender. The results of our analysis demonstrate how Reina responds to archaic conceptions, thereby inciting the audiences of the day to question their respective models of the world, especially, with regard to the role of the woman in society. 

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