Laboratory Studies of the Mating Habits of the Face Fly1

1969 ◽  
Vol 62 (3) ◽  
pp. 551-555 ◽  
Author(s):  
Ralph A. Killough ◽  
Edward Scott McClellan
Keyword(s):  
Laboratory Studies ◽  
The Face

scholarly journals Aspects of classification and diagnostic search for transient and persistent facial erythema

2021 ◽  
Author(s):  
T.А. Сысоева ◽  
И.Е. Фролова ◽  
Е.К. Мураховская ◽  
А.С. Бишарова ◽  
И.Б. Мерцалова
Keyword(s):  
Lupus Erythematosus ◽  
Carcinoid Syndrome ◽  
Accurate Diagnosis ◽  
Laboratory Studies ◽  
Facial Flushing ◽  
Systemic Lupus ◽  
Benign Diseases ◽  
Facial Erythema ◽  
Family Practitioners ◽  
The Face

Розацеа – одно из наиболее частых заболеваний кожи лица. Клиническая картина розацеа характеризуется покраснением центральных частей лица, приливами, телеангиэктазиями, реже папулами и пустулами, фиматозными проявлениями. С покраснением кожи лица сталкиваются дерматологи, аллергологи, терапевты, семейные врачи. В типичных случаях диагностика розацеа не вызывает затруднений, однако покраснением кожи лица и приливами может сопровождаться множество заболеваний, как доброкачественных, так и злокачественных. Большинство случаев вызваны очень распространенными доброкачественными заболеваниями, такими как розацеа, которые легко диагностируются после тщательного сбора анамнеза и осмотра. Однако в некоторых случаях точный диагноз требует дальнейших лабораторных, радиологических или гистопатологических исследований. Например, карциноидный синдром, феохромоцитому, системный мастоцитоз, дерматомиозит, системную красную волчанку, анафилаксию необходимо исключить лабораторными исследованиями. В статье приведены основные заболевания, которые необходимо учитывать при диагностике транзиторной или постоянной эритемы при розацеа. Rosacea is one of the most common conditions on the face. Rosacea affecting the central parts of the face and is characterized by erythema, flushing, telangiectasia; papules and pustules. Cutaneous flushing – a common presenting complaint to dermatologists, allergists, internists, and family practitioners. Diagnosis typical cases of rosacea is not difficult, but many diseases, both benign and malignant, can be associated with facial flushing and erythema. Most cases are caused by very common, benign diseases, such as rosacea, that are readily apparent after a thorough taking of history and physical examination. However, in some cases, accurate diagnosis requires further laboratory, radiologic, or histopathologic studies. In particular, the serious diagnoses of carcinoid syndrome, pheochromocytoma, mastocytosis, systemic lupus erythematosus, dermatomyositisand anaphylaxis need to be excluded by laboratory studies. In the article, we present main diseases that dermatologysts should consider when diagnosing rosacea.

scholarly journals Case Report: Isolated lingual dystonia

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 314
Author(s):  
Zaland Ahmed Yousafzai ◽  
Wajeeha Qayyum ◽  
Sohail Khan ◽  
Mawara Iftikhar ◽  
Qazi Kamran Amin
Keyword(s):  
Neurodegenerative Disorders ◽  
Neurodevelopmental Disorders ◽  
Metabolic Disorders ◽  
Viral Infections ◽  
Oromandibular Dystonia ◽  
Laboratory Studies ◽  
Detailed History ◽  
Multiple Imaging ◽  
Lingual Dystonia ◽  
The Face

Oromandibular dystonia is defined as a focal dystonia that manifests as forceful contractions of the face, jaw, and/or tongue. Lingual dystonia is a rare subtype of oromandibular dystonia that specifically affects the tongue. Multiple etiologies are thought to attribute to oromandibular dystonia, including brain damage, the use of neuroleptic medications, neurodegenerative disorders, metabolic disorders, neurodevelopmental disorders, and viral infections. Idiopathic cases of isolated lingual dystonia are rare and seldom reported in the literature. This report describes a 35-year-old female patient with lingual dystonia that was present at rest and aggravated during speech. Despite detailed history taking and a thorough examination, along with multiple imaging and laboratory studies, no cause could be established and her case was classified as being that of an idiopathic etiology.

Auditory-Visual Perception of Speech

1975 ◽  
Vol 40 (4) ◽  
pp. 481-492 ◽  
Author(s):  
Norman P. Erber
Keyword(s):  
Visual Perception ◽  
Visual Cues ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Visual Speech ◽  
Laboratory Studies ◽  
Reverberant Environments ◽  
The Face ◽  
Visual Speech Perception ◽  
Impaired Children

Hearing-impaired persons usually perceive speech by watching the face of the talker while listening through a hearing aid. Normal-hearing persons also tend to rely on visual cues, especially when they communicate in noisy or reverberant environments. Numerous clinical and laboratory studies on the auditory-visual performance of normal-hearing and hearing-impaired children and adults demonstrate that combined auditory-visual perception is superior to perception through either audition or vision alone. This paper reviews these studies and provides a rationale for routine evaluation of auditory-visual speech perception in audiology clinics.

scholarly journals Case Report: Isolated Lingual Dystonia

F1000Research ◽  
2021 ◽  
Vol 9 ◽  
pp. 314
Author(s):  
Zaland Ahmed Yousafzai ◽  
Wajeeha Qayyum ◽  
Sohail Khan ◽  
Mawara Iftikhar ◽  
Qazi Kamran Amin
Keyword(s):  
Neurodegenerative Disorders ◽  
Neurodevelopmental Disorders ◽  
Metabolic Disorders ◽  
Viral Infections ◽  
Oromandibular Dystonia ◽  
Laboratory Studies ◽  
Detailed History ◽  
Multiple Imaging ◽  
Lingual Dystonia ◽  
The Face

Oromandibular dystonia is defined as a focal dystonia that manifests as forceful contractions of the face, jaw, and/or tongue. Lingual dystonia is a rare subtype of oromandibular dystonia that specifically affects the tongue. Multiple etiologies are thought to attribute to oromandibular dystonia, including brain damage, the use of neuroleptic medications, neurodegenerative disorders, metabolic disorders, neurodevelopmental disorders, and viral infections. Idiopathic cases of isolated lingual dystonia are rare and seldom reported in the literature. This report describes a 35-year-old female patient with lingual dystonia that was present at rest and aggravated during speech. Despite detailed history taking and a thorough examination, along with multiple imaging and laboratory studies, no cause could be established and her case was classified as being that of an idiopathic etiology.

Why do people believe in a zero-sum economy?

2018 ◽  
Vol 41 ◽  
Author(s):  
Samuel G. B. Johnson
Keyword(s):  
Perspective Taking ◽  
Evolutionary Model ◽  
Everyday Experience ◽  
Coalitional Psychology ◽  
The Face ◽  
Zero Sum

AbstractZero-sum thinking and aversion to trade pervade our society, yet fly in the face of everyday experience and the consensus of economists. Boyer & Petersen's (B&P's) evolutionary model invokes coalitional psychology to explain these puzzling intuitions. I raise several empirical challenges to this explanation, proposing two alternative mechanisms – intuitive mercantilism (assigning value to money rather than goods) and errors in perspective-taking.

Mars: was There an Ancient Eden?

1997 ◽  
Vol 161 ◽  
pp. 203-218 ◽  
Author(s):  
Tobias C. Owen
Keyword(s):  
Positive Answer ◽  
Biogenic Elements ◽  
Habitable Zones ◽  
The Face ◽  
The Origin Of Life ◽  
Early Mars ◽  
Favorable Conditions ◽  
Open Question ◽  
Rocky Planets ◽  
Impact Erosion

AbstractThe clear evidence of water erosion on the surface of Mars suggests an early climate much more clement than the present one. Using a model for the origin of inner planet atmospheres by icy planetesimal impact, it is possible to reconstruct the original volatile inventory on Mars, starting from the thin atmosphere we observe today. Evidence for cometary impact can be found in the present abundances and isotope ratios of gases in the atmosphere and in SNC meteorites. If we invoke impact erosion to account for the present excess of129Xe, we predict an early inventory equivalent to at least 7.5 bars of CO2. This reservoir of volatiles is adequate to produce a substantial greenhouse effect, provided there is some small addition of SO2(volcanoes) or reduced gases (cometary impact). Thus it seems likely that conditions on early Mars were suitable for the origin of life – biogenic elements and liquid water were present at favorable conditions of pressure and temperature. Whether life began on Mars remains an open question, receiving hints of a positive answer from recent work on one of the Martian meteorites. The implications for habitable zones around other stars include the need to have rocky planets with sufficient mass to preserve atmospheres in the face of intensive early bombardment.

Hydrogen Cyanide Polymers from the Impact of Comet P/Shoemaker-Levy 9 on Jupiter

1997 ◽  
Vol 161 ◽  
pp. 179-187
Author(s):  
Clifford N. Matthews ◽  
Rose A. Pesce-Rodriguez ◽  
Shirley A. Liebman
Keyword(s):  
Amino Acids ◽  
Solar System ◽  
Hydrogen Cyanide ◽  
Nitrogen Heterocycles ◽  
Laboratory Studies ◽  
Heterogeneous Solids ◽  
The Many ◽  
Comet Halley ◽  
The Impact ◽  
By Products

AbstractHydrogen cyanide polymers – heterogeneous solids ranging in color from yellow to orange to brown to black – may be among the organic macromolecules most readily formed within the Solar System. The non-volatile black crust of comet Halley, for example, as well as the extensive orangebrown streaks in the atmosphere of Jupiter, might consist largely of such polymers synthesized from HCN formed by photolysis of methane and ammonia, the color observed depending on the concentration of HCN involved. Laboratory studies of these ubiquitous compounds point to the presence of polyamidine structures synthesized directly from hydrogen cyanide. These would be converted by water to polypeptides which can be further hydrolyzed to α-amino acids. Black polymers and multimers with conjugated ladder structures derived from HCN could also be formed and might well be the source of the many nitrogen heterocycles, adenine included, observed after pyrolysis. The dark brown color arising from the impacts of comet P/Shoemaker-Levy 9 on Jupiter might therefore be mainly caused by the presence of HCN polymers, whether originally present, deposited by the impactor or synthesized directly from HCN. Spectroscopic detection of these predicted macromolecules and their hydrolytic and pyrolytic by-products would strengthen significantly the hypothesis that cyanide polymerization is a preferred pathway for prebiotic and extraterrestrial chemistry.

Evidence for a shear mechanism for the precipitation of γ-zirconium hydride in zirconium

1978 ◽  
Vol 36 (1) ◽  
pp. 658-659
Author(s):  
G.J.C. Carpenter
Keyword(s):  
Elevated Temperature ◽  
Strain Field ◽  
Zirconium Hydride ◽  
Zirconium Atom ◽  
Atom Diffusion ◽  
Solvus Temperature ◽  
Hexagonal Close Packed ◽  
Partial Dislocations ◽  
The Face

In zirconium-hydrogen alloys, rapid cooling from an elevated temperature causes precipitation of the face-centred tetragonal (fct) phase, γZrH, in the form of needles, parallel to the close-packed <1120>zr directions (1). With low hydrogen concentrations, the hydride solvus is sufficiently low that zirconium atom diffusion cannot occur. For example, with 6 μg/g hydrogen, the solvus temperature is approximately 370 K (2), at which only the hydrogen diffuses readily. Shears are therefore necessary to produce the crystallographic transformation from hexagonal close-packed (hep) zirconium to fct hydride.The simplest mechanism for the transformation is the passage of Shockley partial dislocations having Burgers vectors (b) of the type 1/3<0110> on every second (0001)Zr plane. If the partial dislocations are in the form of loops with the same b, the crosssection of a hydride precipitate will be as shown in fig.1. A consequence of this type of transformation is that a cumulative shear, S, is produced that leads to a strain field in the surrounding zirconium matrix, as illustrated in fig.2a.

A study of interface sliding at F.C.C.-B.C.C. boundaries in a Cu-Zn alloy

1978 ◽  
Vol 36 (1) ◽  
pp. 422-423
Author(s):  
F. Monchoux ◽  
A. Rocher ◽  
J.L. Martin
Keyword(s):  
Face Centered Cubic ◽  
Creep Tests ◽  
High Voltage Electron Microscopy ◽  
Diffusion Treatment ◽  
Voltage Electron ◽  
The Face ◽  
Face Centered ◽  
Interface Sliding ◽  
Zn Alloy ◽  
Made In

Interphase sliding is an important phenomenon of high temperature plasticity. In order to study the microstructural changes associated with it, as well as its influence on the strain rate dependence on stress and temperature, plane boundaries were obtained by welding together two polycrystals of Cu-Zn alloys having the face centered cubic and body centered cubic structures respectively following the procedure described in (1). These specimens were then deformed in shear along the interface on a creep machine (2) at the same temperature as that of the diffusion treatment so as to avoid any precipitation. The present paper reports observations by conventional and high voltage electron microscopy of the microstructure of both phases, in the vicinity of the phase boundary, after different creep tests corresponding to various deformation conditions.Foils were cut by spark machining out of the bulk samples, 0.2 mm thick. They were then electropolished down to 0.1 mm, after which a hole with thin edges was made in an area including the boundary

The glycomes of Caenorhabditis elegans and other model organisms

2002 ◽  
Vol 69 ◽  
pp. 117-134 ◽  
Author(s):  
Stuart M. Haslam ◽  
David Gems ◽  
Howard R. Morris ◽  
Anne Dell
Keyword(s):  
Caenorhabditis Elegans ◽  
Current Knowledge ◽  
Structural Data ◽  
Model Organisms ◽  
Entire Genome ◽  
C Elegans ◽  
The Face ◽  
Area Of Concern ◽  
Nematode Worm

There is no doubt that the immense amount of information that is being generated by the initial sequencing and secondary interrogation of various genomes will change the face of glycobiological research. However, a major area of concern is that detailed structural knowledge of the ultimate products of genes that are identified as being involved in glycoconjugate biosynthesis is still limited. This is illustrated clearly by the nematode worm Caenorhabditis elegans, which was the first multicellular organism to have its entire genome sequenced. To date, only limited structural data on the glycosylated molecules of this organism have been reported. Our laboratory is addressing this problem by performing detailed MS structural characterization of the N-linked glycans of C. elegans; high-mannose structures dominate, with only minor amounts of complex-type structures. Novel, highly fucosylated truncated structures are also present which are difucosylated on the proximal N-acetylglucosamine of the chitobiose core as well as containing unusual Fucα1–2Gal1–2Man as peripheral structures. The implications of these results in terms of the identification of ligands for genomically predicted lectins and potential glycosyltransferases are discussed in this chapter. Current knowledge on the glycomes of other model organisms such as Dictyostelium discoideum, Saccharomyces cerevisiae and Drosophila melanogaster is also discussed briefly.

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