scholarly journals Reproduction in the spotted hyaena, Crocuta crocuta (erxleben)

1939 ◽  
Vol 230 (565) ◽  
pp. 1-78 ◽  
Keyword(s):  
Crocuta Crocuta ◽  
Anatomy And Physiology ◽  
Pliny The Elder ◽  
At Will

From time immemorial it has been known that there is something peculiar about the sexual anatomy and physiology of the spotted hyaena. The writers of antiquity relate the legend that this animal is hermaphrodite, or that it can change its sex at will. Aristotle (384-322 B.C.) mentions the story, but says that it is untrue. He did not, however, distinguish between the spotted and striped hyaenas: the legend relates to the spotted hyaena, but his refutation to the striped, the genital anatomy of which he correctly describes. Pliny the Elder (A.D. 23-79) repeats the legend, mentioning Aristotle’s denial of its truth. Claudius Aelianus ( ca. A.D. 160-220) also states th at the hyaena changes its sex in alternate years.

Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

1970 ◽  
Vol 28 ◽  
pp. 360-361
Author(s):  
John W. Coleman
Keyword(s):  
Boundary Conditions ◽  
High Performance ◽  
Force Fields ◽  
Optical Design ◽  
Direct Conversion ◽  
Design Engineering ◽  
Design Data ◽  
Scalar Potentials ◽  
Geometric Elements ◽  
At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

Resistance Monitor and Control for Vacuum Evaporation of Metals and Carbon

1976 ◽  
Vol 34 ◽  
pp. 572-573
Author(s):  
Russell L. Steere ◽  
Eric F. Erbe ◽  
J. Michael Moseley
Keyword(s):  
Electronic Device ◽  
Point Sources ◽  
High Contrast ◽  
Variable Resistor ◽  
Quality Of Results ◽  
Low Contrast ◽  
Evaporation Source ◽  
And Control ◽  
At Will

We have designed and built an electronic device which compares the resistance of a defined area of vacuum evaporated material with a variable resistor. When the two resistances are matched, the device automatically disconnects the primary side of the substrate transformer and stops further evaporation.This approach to controlled evaporation in conjunction with the modified guns and evaporation source permits reliably reproducible multiple Pt shadow films from a single Pt wrapped carbon point source. The reproducibility from consecutive C point sources is also reliable. Furthermore, the device we have developed permits us to select a predetermined resistance so that low contrast high-resolution shadows, heavy high contrast shadows, or any grade in between can be selected at will. The reproducibility and quality of results are demonstrated in Figures 1-4 which represent evaporations at various settings of the variable resistor.

Five Decades of Research Experience in Speech Anatomy and Physiology

2016 ◽  
Vol 1 (5) ◽  
pp. 4-12
Author(s):  
David P. Kuehn
Keyword(s):  
Ohio State University ◽  
State University ◽  
Research Experience ◽  
University Of Iowa ◽  
University Of Illinois ◽  
Anatomy And Physiology ◽  
The Ohio State University ◽  
Speech Science ◽  
The University ◽  
East Carolina University

This report highlights some of the major developments in the area of speech anatomy and physiology drawing from the author's own research experience during his years at the University of Iowa and the University of Illinois. He has benefited greatly from mentors including Professors James Curtis, Kenneth Moll, and Hughlett Morris at the University of Iowa and Professor Paul Lauterbur at the University of Illinois. Many colleagues have contributed to the author's work, especially Professors Jerald Moon at the University of Iowa, Bradley Sutton at the University of Illinois, Jamie Perry at East Carolina University, and Youkyung Bae at the Ohio State University. The strength of these researchers and their students bodes well for future advances in knowledge in this important area of speech science.

Anatomy and Physiology of Speech and Hearing

2018 ◽  
Author(s):  
Bernard Rousseau ◽  
RYAN BRANSKI
Keyword(s):  
Anatomy And Physiology

Venus Complete: Recognition of and Respect for the Urethrovaginal Gland and its Function

2019 ◽  
Vol 3 (6) ◽  
Keyword(s):  
Sexual Satisfaction ◽  
Medical Professionals ◽  
Movie Industry ◽  
Human Female ◽  
Female Urethra ◽  
Anatomy And Physiology ◽  
Critical Elements ◽  
Raising Awareness ◽  
Women And Girls ◽  
Pass Through

This article is about women and girls and the potential for major changes. I begin with two premises: first, the urethrovaginal gland (UVG) and its secretion, amrita, are critical elements of being a human female; and, second, there is a genetic underpinning to the robustness of UVG activity and its contribution to sexual satisfaction. The anticipation is that, in addition to facilitating women’s sexual satisfaction both through raising awareness and identifying geneticbased pharmaceuticals, we might also modestly enhance medical care and biomedical research endeavors relevant to human female sexual anatomy and physiology. However, there is substantial, almost uniform ignorance, reticence and untoward prejudice among medical professionals-both clinicians and researchers-that has compromised innumerable girls and women. Most important has been the ubiquitous incorrect presumption that the only fluid to pass through-or issue from-the female urethra is urine. The source of the other important urethral effluent, amrita, is the UVG (sometimes known as the Skene gland), but the UVG has most often been considered a fiction, a myth or irrelevant. Thus, its secretion, amrita, has similarly been considered a fiction, myth or irrelevant. Only one venue has openly acknowledged and exploited amrita: the adult movie industry. However, such endorsement predictably added to the rationales for making light of or ignoring this aspect of femininity.

Morphological Freedom and Medicine: Constructing the Posthuman Body

2018 ◽  
Author(s):  
Luna Dolezal
Keyword(s):  
Common Sense ◽  
Cosmetic Surgery ◽  
The Body ◽  
Popular Imagination ◽  
Gender Reassignment ◽  
Common Parlance ◽  
And Gender ◽  
Body Practices ◽  
Health Function ◽  
At Will

The notion that the body can be changed at will in order to meet the desires and designs of its ‘owner’ is one that has captured the popular imagination and underpins contemporary medical practices such as cosmetic surgery and gender reassignment. In fact, describing the body as ‘malleable’ or ‘plastic’ has entered common parlance and dictates common-sense ideas of how we understand the human body in late-capitalist consumer societies in the wake of commercial biotechnologies that work to modify the body aesthetically and otherwise. If we are not satisfied with some aspect of our physicality – in terms of health, function or aesthetics – we can engage with a whole variety of self-care body practices – fashion, diet, exercise, cosmetics, medicine, surgery, laser – in order to ‘correct’, reshape or restyle the body. In addition, as technology has advanced and elective cosmetic surgery has unapologetically entered the mainstream, the notion of the malleable body has become intrinsically linked to the practices and discourses of biomedicine and, furthermore, has become a significant means to assert and affirm identity.

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