scholarly journals NORTH AMERICAN THYSANURA

1893 ◽  
Vol 25 (5) ◽  
pp. 127-128
Author(s):  
Alex. D. Macgillivray
Keyword(s):  
North American ◽  
Posterior Part ◽  
Apical Part ◽  
White Hair ◽  
The Body ◽  
Apical Segment ◽  
White Spots ◽  
Basal Joint

Smynthurus spinatus, n. sp.Olive. Head tinted with purple, lighter on the sides, olive around the mouth and eyes; coarsely and sparsely punctuate, punctures light olive, each bearing a white hair. Antennæ purplish, basal joint lighter, as long as the body; apical segment with from seventeen to twenty subsegments. Abdomen fuscous with lighter spots; the apical part with an olivaceus cloud, the remainder fuscous with whitish or olivaceous blotches; on the middle of the back a number of groups or circular white spots, and on the posterior part of each side a row of white spots, varying from four to ten.

scholarly journals Histological Study of the Immune System in Zebrafish, Danio Rerio (Hamilton, 1822)

2021 ◽  
Vol 23 (2) ◽  
pp. 21-28
Author(s):  
Azin Azar ◽  
Zahra Khoshnood
Keyword(s):  
Immune System ◽  
Danio Rerio ◽  
Histological Study ◽  
Abdominal Cavity ◽  
Posterior Part ◽  
Model Organism ◽  
Apical Part ◽  
The Body ◽  
Laboratory Model ◽  
Hematopoietic Tissue

Abstract The aim of the present study was to investigate the cellular characteristics of the immune tissues of Zebrafish, Danio rerio (Hamilton, 1822). The fish were fixed in Bouin՚s solution for 24 hours then dehydrated, cleared, paraffinized, embedded and finally sectioned, stained and observed through optical microscopy. Results showed that immune system tissues of Zebrafish include the apical part of the kidney, thymus, and spleen. The apical part of the kidney was composed of hematopoietic tissue containing blood and immune cells. The spleen was a single organ located at the abdominal cavity containing melanomacrophages. The thymus was observed as a paired organ at the posterior part of the branchial cavity. Results showed that the immune system of the Zebrafish was dispersed in several organs of the body and that this species could be used as a laboratory model organism in immune system studies.

scholarly journals Redescription of Paradiplozoon hemiculteri (Monogenea, Diplozoidae) from the type host Hemiculter leucisculus, with neotype designation

Parasite ◽  
2018 ◽  
Vol 25 ◽  
pp. 4 ◽  
Author(s):  
Dagmar Jirsová ◽  
Xuejuan Ding ◽  
Kristína Civáňová ◽  
Eliška Jirounková ◽  
Jana Ilgová ◽  
...  
Keyword(s):  
Southern China ◽  
Phylogenetic Analyses ◽  
Posterior Part ◽  
Original Description ◽  
Molecular Data ◽  
The Body ◽  
Type Host ◽  
Hemiculter Leucisculus ◽  
Morphological And Molecular Data ◽  
Median Plate

Paradiplozoon hemiculteri (Ling, 1973), a member of the Diplozoidae, parasitizes the gills of Asian fish. Not only is the type material unavailable for this species, the original description was poor and somewhat conflicting, and adequate molecular data were not available. What is more, the available morphological and molecular data are inconsistent and fluctuate significantly. Here, we present a redescription of P. hemiculteri based on morphological and molecular data from new isolates collected from the type host, the sharpbelly Hemiculter leucisculus (Basilewsky, 1855), captured at the neotype locality (Shaoguan, Guangdong Province, southern China); a neotype for P. hemiculteri was designated from this collection. The length and width of the body, buccal suckers, pharynx, attachment clamps, sickle and the central hook handle were all measured and the shape of the anterior and posterior part of the median plate and anterior and posterior joining sclerites accurately documented. Phylogenetic analyses based on the sequences of the second rDNA internal transcribed spacer (ITS2) indicated that all new samples clustered together and differed clearly from sequences attributed to P. hemiculteri, which are deposited in GenBank. Our results confirm that P. hemiculteri is the only diplozoid that has demonstrably been found on the gills of H. leucisculus to date.

EARLY STAGES OF FIDONIA NOTATARIA, Walk

1882 ◽  
Vol 14 (10) ◽  
pp. 199-200 ◽  
Author(s):  
L. W. Goodell
Keyword(s):  
Pinus Strobus ◽  
White Hair ◽  
The Body ◽  
White Stripe ◽  
Yellowish Green ◽  
Yellow Body ◽  
Bright Green ◽  
Deep Green ◽  
Pale Green ◽  
Dorsal Stripe

Eggs.—Oblong, covered with hexagonal depressions and bright green in color. Length 0.6 mil.; width 0.3 mil. Duration of egg stage 12 days.Young Larva.—Length 2 mil.; head twice as wide as the body, round and deep ochre yellow; body dull yellowish green with a faint paler stigmatal stripe.Mature Larva.—Body of uniform thickness, deep green with a narrow sub-dorsal and stigmatal white stripe, and a dorsal greenish-white hair line; dorsal space pale green; ventral space yellowish green. Head brownish green with a lateral white stripe which is a continuation of the sub-dorsal stripe of the body. Length at rest 25 to 26 mil.; when crawling, 26 to 27 mil. Food plant, Pinus strobus. Duration of larva stage, 35 to 40 days. Described from 57 specimens.

Observation of the presence of crypsis in white mullet Mugil curema (Pisces: Mugilidae) juveniles under artificial rearing conditions

2018 ◽  
Vol 99 (1) ◽  
pp. 223-227
Author(s):  
Ana L. Ibáñez ◽  
Diana Y. Montero
Keyword(s):  
Laboratory Culture ◽  
The Body ◽  
Artificial Rearing ◽  
Pigmentation Change ◽  
White Spots ◽  
Dorsal Axis ◽  
In The Wild ◽  
Dorsal Area ◽  
Being Moved ◽  
One Way Anova

This study documents the presence of crypsis in Mugil curema juveniles under laboratory culture. Initially, the juveniles were located in one brown tank (BT1), later almost half of the individuals were placed in a white tank (WT) where they showed a pigmentation change to white. After being moved to another brown tank (BT2), the juveniles changed to their brown original colour, but kept a few small white spots on the dorsal axis of the body. The ventral head melanophore pattern also changed in the white specimens. Temperature (°C), oxygen (mg l−1) and Illuminance light (Lux m−2), total length (mm) and total weight (g) were determined by tank. Chromaticity was measured in L*(relative luminance) a*(measurement relating to the redness or greenness of the light) b*(measurement relating to the yellowness or blueness of the light) coordinates where all three values are required to completely describe an object’s colour. One-way ANOVA showed no differences for temperature, oxygen and illuminance light among tanks. Length and weight were similar for BT1 and WT but both were different from BT2. The white juveniles depicted similar L* as the WT background as well as the dorsal area of the brown pigmentation and converted juveniles to the brown tanks BT1 and BT2, respectively. Therefore, the fish's body relative luminance matches the background. To our knowledge this behaviour has not been reported before for any fish mullet either cultured or living in the wild.

scholarly journals Spatial and temporal variation in body mass and the blubber, muscle and visceral fat content of North Atlantic common minke whales

2020 ◽  
Vol 21 (1) ◽  
pp. 59-70
Author(s):  
Thorvaldur Gunnlaugsson
Keyword(s):  
Body Mass ◽  
North Atlantic ◽  
Visceral Fat ◽  
Energy Content ◽  
Posterior Part ◽  
The Body ◽  
Spatial And Temporal Variation ◽  
Total Body Mass ◽  
The North ◽  
Minke Whales

The exponent for predicting total body mass from length has been studied in many species and here data on common minke whales from areas in the North Atlantic is added from both Icelandic and Norwegian research catches. The exponent was found to be not significantly different from 3. In addition seasonal changes in body mass and in the parts of blubber, muscle and visceral fat are reported. The exponent for how blubber mass increases with length is lower than 3. In all cases a significant increase over the season was detected, in particular for the mature animals, and also in girth measurements, particularly at the posterior part of the body. Pregnant females had significantly more blubber than other whales. These results agree with studies on blubber thickness measurements and tissue energy content of Icelandic baleen whales and observed changes in the ecosystem around Iceland during the research period.

scholarly journals PKMS Kampung Lele, Desa Pantai Raja, Kecamatan Perhentian Raja, Kabupaten Kampar

2020 ◽  
Vol 4 (1) ◽  
pp. 100-106
Author(s):  
Nofripa Herlina ◽  
Novia Gesriantuti ◽  
Shabri Putra Wirman ◽  
Elsie Elsie ◽  
Israwati Harahap ◽  
...  
Keyword(s):  
Water Quality ◽  
The Body ◽  
Fungal Diseases ◽  
Community Partnership ◽  
White Spots ◽  
Monitoring Activities ◽  
Partnership Program ◽  
And Training

Partners in the Stimulus Community Partnership Program (PKMS) are RT 08 RW 02 Pantai Raja Village, Perhentian Raja District, Kampar Regency. This partner group has a business as a catfish breeder (Clarias sp.). Catfish hatchery efforts in Pantai Raja Village have started 8 years ago.  However, there are problems faced by catfish farmers, namely catfish attacked by diseases and death such as fungal diseases, white spots on the body of the fish. This is thought to be caused by water quality that is not good (poisonous) as well as a lot of residual fish residue at the bottom of the pond. Based on this, the team from the Stimulus Community Partnership Program (PKMS) Muhammadiyah University of Riau (UMRI) has conducted mentoring and monitoring activities to help resolve problems from partners. The forms of activities that have been carried out are socialization and training in aquaponics making. Based on discussions with participants during the socialization and training, it can be seen that participants' knowledge of good aquaponics is felt to be very lacking.

scholarly journals MUSCLE TENSION AND REFLEXES IN THE EARTHWORM

1923 ◽  
Vol 5 (3) ◽  
pp. 327-333 ◽  
Author(s):  
A. R. Moore
Keyword(s):  
Nerve Cord ◽  
Ventral Nerve Cord ◽  
Body Wall ◽  
Muscle Tension ◽  
Posterior Part ◽  
The Body ◽  
Entire Length ◽  
Sensory Cells ◽  
Ventral Region ◽  
Anterior Segments

1. By the use of preparations of earthworm in which the cutaneous receptors have been anesthetized with a solution of M/8 MgCl2, it is shown that peristalsis can be initiated by tension alone. 2. The receptors of the tension reflex are the intermyal sensory cells of the ventral region of the body wall. 3. It is concluded that Straub obtained the tension reflex because his preparations contained the intermyal receptors; Budington was unable to observe the tension reflex in any preparation from which the intermyal receptors had been removed. 4. Intermyal receptors are the receptors of the following reaction: Passive unilateral tension of the posterior part of an earthworm induces active homolateral tension of the musculature of the anterior segments, and results in the course of progress being brought into line with the enforced orientation of the tail. This reaction is termed the homostrophic reflex. 5. The receptors for the reaction are distributed throughout the entire length of the worm, the effectors are limited to the anterior 15 to 20 segments. The impulse is conducted by the ventral nerve cord. 6. The interaction of the homostrophic reflex and tropisms is considered.

Odontogenic keratocyst: diagnostic characteristics and conservative surgical treatment

2021 ◽  
pp. 1-12
Author(s):  
Javier Sánchez Sánchez ◽  
José Aguilar Maldonado ◽  
Karem Barreno Haro
Keyword(s):  
Third Molar ◽  
Posterior Part ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
The Body ◽  
Odontogenic Keratocyst ◽  
High Recurrence Rate ◽  
En Bloc ◽  
Dental Lamina ◽  
Diagnostic Characteristics

Keratocyst is a benign odontogenic lesion with aggressive behavior, probably derived from the dental lamina. It is frequently located in the posterior part of the mandibular bone in the area of ​​the third molar, mandibular angle and can progress towards the ramus and the body, presenting a direct association with retained dental organs. There is a wide variety of techniques for the treatment of this lesion, such as decompression, marsupialization, enucleation, and en bloc resection, as well as the combination of these with adjuvant methods. The interest in this lesion stems from its high recurrence rate, which is estimated to be 20-30% in the general population, however, at present the use of conservative treatments such as marsupialization and decompression has been chosen. demonstrated greater effectiveness and less recurrence. This is why after treating the lesions it is important to give a long-term follow-up. The objective of the publication is to present the report of a clinical case of a 21-year-old male patient with a diagnosis of odontogenic keratocyst treated with a decompression technique for five months for subsequent surgical enucleation. It has been proven that decompression treatment followed by enucleation and accompanied by adjuvant methods is an adequate therapeutic management for keratocysts as it demonstrates its lower rate of recurrence and its noble behavior with neighboring vital structures. However, in all cases, regular monitoring should be carried out to prevent recurrence of the lesion.

Cognitive Style, North American Values, and the Body of Christ,

1974 ◽  
Vol 2 (2) ◽  
pp. 77-88 ◽  
Author(s):  
V. Mary Stewart
Keyword(s):  
Cognitive Style ◽  
North American ◽  
Cognitive Styles ◽  
The Body ◽  
Body Of Christ ◽  
Personal Style ◽  
American Values ◽  
The Reformation ◽  
Psychological Models

The Reformation doctrine of “the Word and the Spirit,” as outlined by Bernard Ramm, is related to various psychological models of cognitive and personal style. It is suggested that Witkin's distinction between “analytic” and “global” cognitive styles has its parallel in two differing religious styles, which are labelled “Word-oriented” and “Spirited-oriented.” The implications of these two styles for the functioning of pastors, parishioners and Christian workers are examined in detail.

scholarly journals Murine genes related to the Drosophila AbdB homeotic genes are sequentially expressed during development of the posterior part of the body.

1991 ◽  
Vol 10 (8) ◽  
pp. 2279-2289 ◽  
Author(s):  
J.C. Izpisúa-Belmonte ◽  
H. Falkenstein ◽  
P. Dollé ◽  
A. Renucci ◽  
D. Duboule
Keyword(s):  
Posterior Part ◽  
The Body ◽  
Homeotic Genes
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