scholarly journals The occurrence of epibionts of Gordiida (Nematomorpha) in Catamarca, Argentina

2010 ◽  
Vol 55 (3) ◽  
Author(s):  
Cristina Villalobos ◽  
Liliana Salas ◽  
Fernanda Zanca ◽  
Adrián Atencio
Keyword(s):  
Body Surface ◽  
The Body ◽  
Genus Level ◽  
First Time

AbstractThe presence of larvae and pupae of the genus Metrichia (Trichoptera, Hydroptilidae), larvae of the genus Macrelmis and Phanocerus (Coleoptera, Elmidae), three diatom genera Achnanthes, Cocconeis, Gomphonema, and some specimens of very small diatoms that could not be determined to species or genus level, were recorded for the first time as epibionts for Chordodes brasiliensis (Gordiida, Nematomorpha). Such epibionts were found on the body surface of this species of hairworms, captured from El Tala stream, Catamarca, Argentina.

Social Carrying and Defensive Behavior During Colony Emigration in the Leaf-cutting Ant Atta sexdens

Sociobiology ◽  
2017 ◽  
Vol 64 (4) ◽  
pp. 492
Author(s):  
Lohan Valadares ◽  
Fábio S. Nascimento
Keyword(s):  
Body Surface ◽  
Defensive Behavior ◽  
The Body ◽  
Fungus Garden ◽  
Atta Sexdens ◽  
Defensive Strategies ◽  
Laboratory Conditions ◽  
Nesting Site ◽  
Leaf Cutting ◽  
First Time

In this work, we describe for the first time and under laboratory conditions, the behaviors related to social carrying and defensive strategies during colony emigration in the leaf-cutting ant Atta sexdens. Once colonies were laid on a tray under suboptimal conditions, groups of workers aggregated all over the body surface of the queen and brood, with mandibles half open and legs widely open in a ‘entangle’ formation. Queens were the first caste to be reallocated, followed respectively by the transportation of brood, newly-emerged workers, and pieces of fungus garden to the new nesting site. Contrary to what have been reported to the Myrmicinae species, adult transport followed a stereotyped sequence of acts involving approach, seize and transportation of newly-emerged workers to new target areas. Our results suggest that, in front of rapid unfavorable changes, leaf-cutting ants are capable of reorganize the nest in order to protect their members and resources.

scholarly journals Contribution to the knowledge of oribatid mites of the genus Austrocarabodes (Acari, Oribatida, Carabodidae) of Madagascar

Acarologia ◽  
2020 ◽  
Vol 60 (2) ◽  
pp. 353-370
Author(s):  
Sergey G. Ermilov ◽  
Josef Starý
Keyword(s):  
New Species ◽  
Body Surface ◽  
National Park ◽  
Oribatid Mites ◽  
The Body ◽  
First Time ◽  
A New Species

This work includes taxonomic and faunistic data on carabodid mites (Oribatida, Carabodidae) collected from the Montagne d'Ambre National Park, North Madagascar. A new species of the genus Austrocarabodes is described; A. madagascarensis n. sp. differs from A. similis and A. spathulatus by the presence of foveolae on the body surface. Supplementary descriptions of Austrocarabodes parapustulatus Mahunka, 2009 and A. planisetus Mahunka and Mahunka-Papp, 2011 which were originally described from Madagascar, are presented. The species Austrocarabodes spathulatus Mahunka, 1978 is recorded in Madagascar for the first time.

Redescription of Lernaeenicus ramosus Kirtisinghe, 1956 (Copepoda, Siphonostomatoida, Pennellidae), with description of its male and the postnaupliar developmental stages

Crustaceana ◽  
2019 ◽  
Vol 92 (1) ◽  
pp. 119-128 ◽  
Author(s):  
Kunihiko Izawa
Keyword(s):  
Body Surface ◽  
Developmental Stages ◽  
Developmental Process ◽  
The Body ◽  
Epinephelus Akaara ◽  
First Time

Abstract Lernaeenicus ramosus Kirtisinghe, 1956 is redescribed on the basis of metamorphosed females recovered from the body surface of Epinephelus akaara (Temminck & Schlegel, 1842) (Pisces, Serranidae). Also the male, copepodid I, both sexes of chalimus II and III, and chalimus IV male were recovered, together with the females, from the branchial lamellae of the same host and are herein described for the first time for the species. The developmental process of leg 4 in L. ramosus differs from that in L. sprattae (Sowerby, 1806).

scholarly journals First record of Palombitrema triangulum (Suriano, 1981) Suriano, 1997 (Monogenea: Dactylogyridae) from freshwater fishes in Brazil

2015 ◽  
Vol 75 (1) ◽  
pp. 229-233
Author(s):  
VD. Abdallah ◽  
RK. Azevedo ◽  
RJ. Silva
Keyword(s):  
Nasal Cavity ◽  
Body Surface ◽  
First Record ◽  
Freshwater Fishes ◽  
Morphological Characterization ◽  
The Body ◽  
Native Fish ◽  
Morphological Differences ◽  
First Time

This study reports for the first time the monogenean Palombitrema triangulum Suriano (1981) in freshwater fishes from Brazil, highlighting new sites of infection for this helminth and some morphological differences. Monogeneans were collected on the body surface, gills and nasal cavity of two native fish species from Brazil, Cyphocharax modestus (Fernández-Yépez, 1948) and Cyphocharax nagelii (Steindachner, 1881). A brief morphological characterization of this species is presented.

scholarly journals Macrochelid mite (Acari: Gamasida) associated with dung beetles in Baluran National Pak, East Java, Indonesia

TREUBIA ◽  
2015 ◽  
Vol 42 ◽  
pp. 23
Author(s):  
Sri Hartini ◽  
Dhian Dwibadra ◽  
Masahiro Ohara ◽  
Gen Takaku
Keyword(s):  
Key Words ◽  
Body Surface ◽  
National Park ◽  
Mite Species ◽  
Dung Beetles ◽  
The Body ◽  
The Family ◽  
First Time

Eight mite species of the family Macrochelidae (Acari: Gamasida) were collected from the body surface of dung beetles in Baluran National Park, East Java, Indonesia. Of these, one species, Macrocheles subwallacei sp. nov., was describe as new to science. Female of Macrocheles crispa (Berlese, 1910) was rediscribed and the male was described for the first time. The remaining six species were Neopodocinum  jaspersi (Oudemans, 1900), M. dispar (Berlese, 1910), M. hallidayi Walter & Krantz, 1986, M. entetiensis Hartini & Takaku, 2005, M. jabarensis Hartini & Takaku, 2003 and M. persimilis Hartini, Dwibadra & Takaku, 2007.Key words: Acari, Macrochelidae, dung beetles, Baluran, East Java, Indonesia

The Role of Computer Modeling in Electrocardiography

1990 ◽  
Vol 29 (04) ◽  
pp. 282-288 ◽  
Author(s):  
A. van Oosterom
Keyword(s):  
Electrical Activity ◽  
Computer Modeling ◽  
Body Surface ◽  
Electrical Current ◽  
The Body ◽  
Volume Conductor ◽  
Current Generator ◽  
Cardiac Electrical Activity ◽  
Source Models

AbstractThis paper introduces some levels at which the computer has been incorporated in the research into the basis of electrocardiography. The emphasis lies on the modeling of the heart as an electrical current generator and of the properties of the body as a volume conductor, both playing a major role in the shaping of the electrocardiographic waveforms recorded at the body surface. It is claimed that the Forward-Problem of electrocardiography is no longer a problem. Several source models of cardiac electrical activity are considered, one of which can be directly interpreted in terms of the underlying electrophysiology (the depolarization sequence of the ventricles). The importance of using tailored rather than textbook geometry in inverse procedures is stressed.

The use of Body Surface Index as a Better Clinical Health indicators Compare to Body Mass Index and Body Surface Area for Clinical Application

2018 ◽  
pp. 131-136
Author(s):  
Shirazu I. ◽  
Theophilus. A. Sackey ◽  
Elvis K. Tiburu ◽  
Mensah Y. B. ◽  
Forson A.
Keyword(s):  
Surface Area ◽  
Body Surface Area ◽  
Clinical Application ◽  
Body Surface ◽  
Body Height ◽  
Health Indicators ◽  
The Body ◽  
Body Parameters ◽  
The Relationship ◽  
Individual Body

The relationship between body height and body weight has been described by using various terms. Notable among them is the body mass index, body surface area, body shape index and body surface index. In clinical setting the first descriptive parameter is the BMI scale, which provides information about whether an individual body weight is proportionate to the body height. Since the development of BMI, two other body parameters have been developed in an attempt to determine the relationship between body height and weight. These are the body surface area (BSA) and body surface index (BSI). Generally, these body parameters are described as clinical health indicators that described how healthy an individual body response to the other internal organs. The aim of the study is to discuss the use of BSI as a better clinical health indicator for preclinical assessment of body-organ/tissue relationship. Hence organ health condition as against other body composition. In addition the study is `also to determine the best body parameter the best predict other parameters for clinical application. The model parameters are presented as; modeled height and weight; modelled BSI and BSA, BSI and BMI and modeled BSA and BMI. The models are presented as clinical application software for comfortable working process and designed as GUI and CAD for use in clinical application.

Mannose-binding C-type lectins as defense molecules on the body surface of the sea urchin Pseudocentrotus depressus

2021 ◽  
Vol 116 ◽  
pp. 103915
Author(s):  
Chihiro Iiyama ◽  
Fuyu Yoneda ◽  
Masaya Tsutsumi ◽  
Shigeyuki Tsutsui ◽  
Osamu Nakamura
Keyword(s):  
Sea Urchin ◽  
Body Surface ◽  
The Body ◽  
Mannose Binding ◽  
Defense Molecules

scholarly journals Electro-Quasistatic Animal Body Communication for Untethered Rodent Biopotential Recording

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shreeya Sriram ◽  
Shitij Avlani ◽  
Matthew P. Ward ◽  
Shreyas Sen
Keyword(s):  
Lower Energy ◽  
Sensor Node ◽  
State Of The Art ◽  
The Body ◽  
Animal Body ◽  
Current State ◽  
Communication Modalities ◽  
First Time ◽  
Biopotential Recording

AbstractContinuous multi-channel monitoring of biopotential signals is vital in understanding the body as a whole, facilitating accurate models and predictions in neural research. The current state of the art in wireless technologies for untethered biopotential recordings rely on radiative electromagnetic (EM) fields. In such transmissions, only a small fraction of this energy is received since the EM fields are widely radiated resulting in lossy inefficient systems. Using the body as a communication medium (similar to a ’wire’) allows for the containment of the energy within the body, yielding order(s) of magnitude lower energy than radiative EM communication. In this work, we introduce Animal Body Communication (ABC), which utilizes the concept of using the body as a medium into the domain of untethered animal biopotential recording. This work, for the first time, develops the theory and models for animal body communication circuitry and channel loss. Using this theoretical model, a sub-inch$$^3$$ 3 [1″ × 1″ × 0.4″], custom-designed sensor node is built using off the shelf components which is capable of sensing and transmitting biopotential signals, through the body of the rat at significantly lower powers compared to traditional wireless transmissions. In-vivo experimental analysis proves that ABC successfully transmits acquired electrocardiogram (EKG) signals through the body with correlation $$>99\%$$ > 99 % when compared to traditional wireless communication modalities, with a 50$$\times$$ × reduction in power consumption.

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