scholarly journals I. On the development of striped muscular fibre in man, mammalia, and birds

1862 ◽  
Vol 11 ◽  
pp. 513-516 ◽  
Keyword(s):  
Domestic Fowl ◽  
Muscular Fibre ◽  
Muscular Tissue ◽  
Muscular Layer ◽  
Narrow Bands

In the domestic fowl, until the beginning of the fifth day of incubation, the so-called voluntary muscular tissue consists only of a crowded multitude of free nuclei imbedded in a finely granular blastema; the nuclei are round, oval, pyriform, and somewhat angular, with granular contents. On the fifth and sixth days of incubation, fibres become superadded under two forms,— 1st, as processes extending from the ends, or from the sides of nuclei; 2nd, as narrow bands, either uniformly delicate and pale, or bordered by darker outlines, and containing nuclei at variable intervals. They are most numerous near the surface of the layer, and probably belong, at least partly, to the muscular layer of the skin.

scholarly journals I. Researches into the nature of the involuntary muscular tissue of the urinary bladder

1859 ◽  
Vol 9 ◽  
pp. 573-574
Keyword(s):  
Smooth Muscle ◽  
Urinary Bladder ◽  
Connective Tissue ◽  
Human Body ◽  
Single Fibre ◽  
Muscular Fibre ◽  
Small Scale ◽  
Muscular Tissue ◽  
Present Communication ◽  
Voluntary Muscle

In the present communication the author endeavours to show, that the involuntary muscular tissue of the bladder and the voluntary muscle in other parts of the human body have a like composition, and that Prof. Kölliker’s view, that involuntary or smooth muscle is made up of fusiform cells, is incorrect. On the contrary, the muscular substance of the bladder is composed of lengthened fibres with fixed and tendinous terminal attachments. The fasciculi of muscular fibres in the bladder are interwoven into a network, and are marked at varying intervals by tendinous intersections, like those of the Rectus abdominis on a small scale. The author terms what are usually called the ‘nuclei’ of the muscular tissue—‘corpuscles,’ and distinguishes two varieties of them, the oval and the fusiform. The latter are the more numerous, and are the rod-like nuclei of Kölliker. Two or even three of these may be observed in the length of a single fibre. If a single muscular fibre of the bladder is isolated, it will he found to terminate as in voluntary muscle; connective tissue investing not only the fibre, but each of the separate portions into which it ultimately divides.

scholarly journals XXI. Physiological action of the bark of erythrophleum guinense (casca, cassa, or sassy bark)

1877 ◽  
Vol 25 (171-178) ◽  
pp. 172-174 ◽  
Keyword(s):  
Muscular Fibre ◽  
Amoeboid Movement ◽  
Muscular Tissue ◽  
Alcoholic Extract ◽  
Blue Colour ◽  
Physiological Action ◽  
Fresh Vegetable ◽  
Fatty Metamorphosis ◽  
Yeast Fungus ◽  
Do So

1. It diminishes oxidation, and thus prevents fresh vegetable tissues from communicating a blue colour to tincture of guaiac. 2. It does not hinder the development of the yeast-fungus nor the germination of seeds. Penicillium grows freely in a solution of it. 3. A watery solution of the alcoholic extract prevents the development of Bacteria , but one of the watery extract does not do so. 4. It does not destroy the life of Bacteria or Infusoria. The motion of cilia is not arrested by it. 5. It arrests amœboid movement in leucocytes. 6. It has no action on fresh muscular fibre; but muscular tissue, when kept in a solution of the alcoholic extract for some days, undergoes extensive fatty metamorphosis, but does not become putrid.

On the Minute Structure of the Involuntary Muscular Tissue.

1857 ◽  
Vol 3 ◽  
pp. 413-428
Author(s):  
Joseph Lister
Keyword(s):  
Human Body ◽  
Muscular Fibre ◽  
Muscular Tissue ◽  
General Account ◽  
Contractile Tissue ◽  
Made In

In this paper the author, after a short general account of the different forms in which contractile tissue occurs in the human body, describes at greater length the discovery made in 1847 by Professor Kölliker, that involuntary muscular fibre is capable of being resolved into nucleated elements, supposed to be of the nature of elongated cells, and hence termed “contractile” or “muscular fibre-cells.”

scholarly journals Path Loss Measurement and Channel Modeling with Muscular Tissue Characteristics

2017 ◽  
Vol 11 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Yu-Ping Qin ◽  
Shuang Zhang ◽  
Hai-Yan Liu ◽  
Yi-He Liu ◽  
You-Zhi Li ◽  
...  
Keyword(s):  
Communication Channel ◽  
Path Loss ◽  
Channel Modeling ◽  
Maximum Error ◽  
Sine Wave ◽  
Muscular Fibre ◽  
Muscular Tissue ◽  
Experimental Sample ◽  
Galvanic Coupling ◽  
Communication Distance

Background: The galvanic coupling intra-body communication has low radiation and strong anti-interference ability, so it has many advantages in the wireless communication. Method: In order to analyze the effect of muscle tissue’s characteristics upon the communication channel, we selected the muscle of pig buttock as the experimental sample, and used it to study the attenuation property with the galvanic coupling intra-body communication channel along the parallel direction and the transverse direction relative to the muscular fibre line as well as on the surface of destroyed muscular fibre; the study frequency ranges from 1kHz to 10MHz.In the isotropic experiment, in order to destroy muscle’s fibre characteristics, we grinded the muscle four times, at least five minutes for each time. 0dbm sine-wave signal was input to measure the channel attenuation parameter S21 when the transmitter and the receiver were placed at different positions and different distances d1 and d2 (20mm, 40mm, 60mm), so as to analyze channel loss. Conclusion: Within the same frequency range and at the same communication distance, the maximum error of channel attenuation was 10dB; within the same frequency, as the communication distance was increased, the channel attenuation rose gradually, with 4dB increased every 20mm. The conclusion provides the basis for building the theoretical model in the future.

Further Studies on the Ultrastructure of Harderian Gland in Adult Rats

1974 ◽  
Vol 32 ◽  
pp. 288-289
Author(s):  
Alfredo Feria-Velasco ◽  
Guadalupe Tapia-Arizmendi
Keyword(s):  
Fine Structure ◽  
Domestic Fowl ◽  
Animal Species ◽  
Acinar Cells ◽  
Harderian Gland ◽  
Myoepithelial Cells ◽  
The Other ◽  
Albino Rats ◽  
Adult Rats ◽  
Cell Components

The fine structure of the Harderian gland has been described in some animal species (hamster, rabbit, mouse, domestic fowl and albino rats). There are only two reports in the literature dealing on the ultrastructure of rat Harderian gland in adult animals. In one of them the author describes the myoepithelial cells in methacrylate-embbeded tissue, and the other deals with the maturation of the acinar cells and the formation of the secretory droplets. The aim of the present work is to analize the relationships among the acinar cell components and to describe the two types of cells located at the perifery of the acini.

Least-square refinement of structure parameters from CBED integrated intensities: application to determination of temperature factors in Y BA2CU3O7

1992 ◽  
Vol 50 (2) ◽  
pp. 1456-1457
Author(s):  
Kjersti Gjønnes ◽  
Jon Gjønnes
Keyword(s):  
Least Square ◽  
Measured Intensity ◽  
Structure Information ◽  
Accurate Temperature ◽  
Least Square Fit ◽  
Case Application ◽  
Integrated Intensities ◽  
Temperature Factors ◽  
Narrow Bands

Electron diffraction intensities can be obtained at large scattering angles (sinθ/λ ≥ 2.0), and thus structure information can be collected in regions of reciprocal space that are not accessable with other diffraction methods. LACBED intensities in this range can be utilized for determination of accurate temperature factors or for refinement of coordinates. Such high index reflections can usually be treated kinematically or as a pertubed two-beam case. Application to Y Ba2Cu3O7 shows that a least square refinememt based on integrated intensities can determine temperature factors or coordinates.LACBED patterns taken in the (00l) systematic row show an easily recognisable pattern of narrow bands from reflections in the range 15 < l < 40 (figure 1). Integrated intensities obtained from measured intensity profiles after subtraction of inelastic background (figure 2) were used in the least square fit for determination of temperature factors and refinement of z-coordinates for the Ba- and Cu-atoms.

Amphetamine Suppresses Activity and Distress Vocalizations in Domestic Fowl Cockerels

2002 ◽  
Author(s):  
Rebecca A. Sheffield ◽  
Pamela A. Komassa ◽  
Michael R. Baker
Keyword(s):  
Domestic Fowl ◽  
Distress Vocalizations

RADIOIMMUNOASSAY OF OESTRONE AND OESTRADIOL IN THE PERIPHERAL PLASMA OF THE DOMESTIC FOWL IN VARIOUS PHYSIOLOGICAL STATES AND OF HYPOPHYSECTOMIZED AND OVARIECTOMIZED FOWLS

1974 ◽  
Vol 75 (1) ◽  
pp. 133-140 ◽  
Author(s):  
B. E. Senior
Keyword(s):  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Diethyl Ether ◽  
Bovine Serum ◽  
Domestic Fowl ◽  
Laying Hens ◽  
Peripheral Plasma ◽  
The Mean ◽  
Precision And Accuracy ◽  
Chicken Ovary

ABSTRACT A radioimmunoassay was developed to measure the levels of oestrone and oestradiol in 0.5–1.0 ml of domestic fowl peripheral plasma. The oestrogens were extracted with diethyl ether, chromatographed on columns of Sephadex LH-20 and assayed with an antiserum prepared against oestradiol-17β-succinyl-bovine serum albumin using a 17 h incubation at 4°C. The specificity, sensitivity, precision and accuracy of the assays were satisfactory. Oestrogen concentrations were determined in the plasma of birds in various reproductive states. In laying hens the ranges of oestrone and oestradiol were 12–190 pg/ml and 29–327 pg/ml respectively. Levels in immature birds, in adult cockerels and in an ovariectomized hen were barely detectable. The mean concentrations of oestrone and oestradiol in the plasma of four non-laying hens (55 pg/ml and 72 pg/ml respectively) and one partially ovariectomized hen (71 pg/ml and 134 pg/ml respectively) were well within the range for laying hens. It is evident that the large, yolk-filled follicles are not the only source of oestrogens in the chicken ovary.

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