scholarly journals Larval nematodes found in amphibians from northeastern Argentina

2010 ◽  
Vol 70 (4) ◽  
pp. 1089-1092 ◽  
Author(s):  
CE. González ◽  
MI. Hamann
Keyword(s):  
Life Cycle ◽  
Intermediate Hosts ◽  
Pseudis Paradoxa ◽  
First Time ◽  
Northeastern Argentina

Five species of amphibians, Leptodactylus podicipinus, Scinax acuminatus, S. nasicus, Rhinella fernandezae and Pseudis paradoxa, were collected in Corrientes province, Argentina and searched for larval nematodes. All larval nematodes were found as cysts in the serous of the stomach of hosts. Were identified one superfamily, Seuratoidea; one genus, Spiroxys (Superfamily Gnathostomatoidea) and one family, Rhabdochonidae (Superfamily Thelazioidea). We present a description and illustrations of these taxa. These nematodes have an indirect life cycle and amphibians are infected by consuming invertebrate, the intermediate hosts. The genus Spiroxys and superfamily Seuratoidea were reported for the first time for Argentinean amphibians.

Taeniasis in a German Shepherd Pup: A Case Report

2019 ◽  
Vol 15 (01) ◽  
pp. 83-84
Author(s):  
B J Thakre ◽  
Joice P Joseph ◽  
Binod Kumar ◽  
Nilima Brahmbhatt ◽  
Krishna Gamit
Keyword(s):  
Case Report ◽  
Life Cycle ◽  
Definitive Host ◽  
Gastrointestinal Diseases ◽  
Intermediate Hosts ◽  
German Shepherd ◽  
Taenia Hydatigena ◽  
Taenia Multiceps ◽  
Taenia Crassiceps ◽  
Dipylidium Caninum

Taenia spp. are long, segmented, parasitic tapeworms and are relatively uncommon in canine gastrointestinal diseases compared to other tapeworms like Dipylidium caninum. These parasites have an indirect life cycle, cycling between definitive and intermediate hosts. Dogs act as definitive hosts of different species of Taenia including Taenia multiceps, Taenia serialis, Taenia crassiceps, Taenia hydatigena, Taenia pisiformis, etc. Taenia multiceps is of greatest zoonotic relevance in human. In the definitive host, it causes only mild infection. Larvae are more likely to cause disease than adult tapeworms. Taeniasis in pets should be cautiously handled because of its zoonotic importance. This communication reports a case of 3 months old pup suffering from Taenia infection that was successfully managed with a combination of praziquantel and fenbendazole.

Research of Graphic User Interface of Carbon Dioxide Emission Evaluation Model in Construction Life Cycle Based on Matlab

2013 ◽  
Vol 689 ◽  
pp. 546-550
Author(s):  
Xue Hong Gan ◽  
Wei Wang ◽  
Shi Mei Liu
Keyword(s):  
Carbon Dioxide ◽  
Life Cycle ◽  
Evaluation Model ◽  
Carbon Dioxide Emission ◽  
Graphic User Interface ◽  
Property Management ◽  
Low Carbon ◽  
Management Responsibility ◽  
Residential Quarter ◽  
First Time

To build carbon dioxide emission evaluation model in construction life cycle is the key link to make low-carbon research of theoretical studies head towards practical application. For the first time, residential quarter is selected as the object in the study, carbon dioxide emission management responsibility of owner and property being considered and carbon dioxide emission evaluation model in construction life cycle based on matlab as well as database of carbon dioxide factor being built initially. Net carbon dioxide emission information will be shown timely, then carbon dioxide emission and absorption can be adjusted by property management accordingly.

scholarly journals METODE INTERAKSI PARENTING: UPAYA MENGOPTIMALKAN PENDIDIKAN SISWA SEJAK DINI

2016 ◽  
Vol 3 (02) ◽  
Author(s):  
Moh Rifai
Keyword(s):  
Life Cycle ◽  
Elementary Students ◽  
Key Words ◽  
Well Being ◽  
Good Schools ◽  
Children Education ◽  
First Time ◽  
Do So ◽  
The Way

<p>Parents are obliged to take care of their children’s future, especially by rendering sufficient education. Children are believed to bring about happiness every now and then, who generate family’s pride up to the almighty judication. Some people are save and some are not in that court, where children will give sigificant contribution in it. That’s why the children’s well being has become the parents obligation. To bring about children’s well being, parents should also render the good treatments during the life cycle of their children. The main duties of parents for their children are giving them the good names, sending them to the good schools where they can learn religion, and marry them to their good spouses. Psychologically, when children are sent to school for the first time, they will feel that they are put apart from parents’ care, so that may of them have to go difficult phase of adjustment. The adjustment includes that of education so as to run as naturally as possible. To get the naturality of the education delegation, teachers and educators are obliged to be able to nurture any value to students as naturally as possible. Parenting model of teaching serves the requirements of teaching children just the way the parrents do, so that it is assumptively effective in teaching elementary students by taking consideration on the psychologial aspect of children.</p><p> </p><p>Key words:   Parenting Model of teaching, children education optimalization</p>

scholarly journals Ultrastructure of Lobosphaera reniformis (Watanabe) Komárek et Fott (Chlorellales) from King George Island, South Shetland Islands, Antarctica

2014 ◽  
Vol 63 (2) ◽  
pp. 205-210 ◽  
Author(s):  
A. Massalski ◽  
T. Mrozińska ◽  
M. Olech
Keyword(s):  
Electron Microscopy ◽  
Life Cycle ◽  
South Shetland Islands ◽  
King George Island ◽  
Vegetative Cells ◽  
Shetland Islands ◽  
Complete Life Cycle ◽  
Laboratory Cultures ◽  
First Time

<i>Lobosphaera reniformis</i> (Wat.) Kom. et Fott (=<i>Chlorella reniformis</i> Wat.) so far known only from Japan, and Papua Island, was for the first time found in Antarctica (King George Island, South Shetland Islands). In laboratory cultures a complete life cycle was obtained, and most of its stages were followed by the electron microscopy. Reproduction is by morphologically different autospores. In some large vegetative cells two Golgi apparatuses lying side by side were observed.

scholarly journals Morphobiological characteristics of trematode cercariae of the families Opisthorchiidae and Notocotylidae

2020 ◽  
Vol 49 (6) ◽  
pp. 71-78
Author(s):  
О. M. Bonina ◽  
Е. А. Serbina
Keyword(s):  
Life Cycle ◽  
Western Siberia ◽  
The Body ◽  
Parasitic Diseases ◽  
Body Structure ◽  
Intermediate Hosts ◽  
Laboratory Conditions ◽  
Bithynia Tentaculata ◽  
Morphobiological Characteristics

The results of studying the body structure of trematode cercariae of the families Opisthorchiidae and Notocotylidae and the features of their development in Western Siberia are presented. The data of long-term (1994–2019) studies on the spread of these pathogens of dangerous parasitic diseases in humans and animals are analyzed and summarized. The studies were conducted according to generally accepted methods in parasitology and hydrobiology. The species affi  liation of trematodes was determined in laboratory conditions on mature cercariae that independently left the shells of the host mollusks Bithynia tentaculata and B. troscheli. It was noted that the trematodes of the Opisthorchiidae and Notocotylidae families at the cercaria stage have the following similar features: a simple tail, pigmented eyes, and one oral sucking cup. Diagnosis of trematode cercariae of Opisthorchiidae and Notocotylidae families is possible by the following signs: the tail of the opisthorchis cercaria has a swimming membrane and is 2 times longer than the body, the tail of the notocotylid has no swimming membrane and is approximately equal in length to the body. Opisthor-chis cercariae have two pigment eyes, notocotilids – three. In the life cycle of opisthorchis, there are two intermediate hosts (bitinia and fi  sh), in the notocotylid cycle, one (bitinia). Opisthorchis cercariae have penetration glands, but notocotylids do not; the maximum daily emission of opisthorchis cercariae is ten times higher than that of notocotylids (6672 and 422 cercariae, respectively). The ability to diagnose opisthorchis and notocotilid at the cercaria stage allows the identifi cation of local foci of epidemiologically and epizootically dangerous diseases.

scholarly journals Tactical Competition Model Application in Restaurant Services Industry at Different Lifecycle Stages of Organization

2021 ◽  
Vol 15 (3) ◽  
pp. 5-16
Author(s):  
Rimma R. Akhmedova ◽  
◽  
Mikhail V. Lednev ◽  
◽  
Keyword(s):  
Life Cycle ◽  
Successful Implementation ◽  
Special Role ◽  
Model Application ◽  
Development Tactics ◽  
Services Sector ◽  
Stage Of Development ◽  
Competitive Activity ◽  
Competitive Actions ◽  
First Time

In this article, for the first time, the distribution of well-known strategies and tactics of competitive actions by stages of the lifecycle according to the model of D. Miller and P. Friesen is carried out, which allows to provide a more accurate description of the competitive activity of an organization at different stages of its development. Tactics and strategy are closely related, and there is a need for their gradation in the context of the characteristics of the stages of the organization’s life cycle. This study is especially relevant in the period of the COVID-19 pandemic, where tactical models of competition play a special role in accordance with the selected strategies in the field of restaurant services. During the analysis of the activities of restaurant service establishments at different stages of the life cycle, certain patterns in the competitive actions of the organization were identified, which can be compared with the strategies and tactics of competition. The criteria for determining the stage of development of the organization, which determine the conduct of competitive processes, are given. Each stage of the organization’s life cycle is characterized: birth, development, maturity, flourishing, decline on the example of the restaurant services sector. It shows how organizations apply different strategies and tactics of competitive actions within each stage of the life cycle, as well as during the transition from one stage to another. The use of this article can help restaurant businesses by applying the developed matrix of tactical models of competition at various stages of the organization’s life cycle within the framework of a competitive strategy in the practical activities of the organization. Thus, the result of successful implementation of the strategy and tactical models is an increase in the number of potential guests, including permanent ones, and an increase in investment, production, sales and other opportunities.

scholarly journals Natural infection of Deroceras laeve (Mollusca: gastropoda) with metastrongylid larvae in a transmission focus of abdominal angiostrongyliasis

2002 ◽  
Vol 44 (1) ◽  
pp. 53-54 ◽  
Author(s):  
Rafael Lucyk MAURER ◽  
Carlos GRAEFF-TEIXEIRA ◽  
José Willibaldo THOMÉ ◽  
Luís Antônio CHIARADIA ◽  
Hiroko SUGAYA ◽  
...  
Keyword(s):  
Epidemiological Study ◽  
Natural Infection ◽  
Southern Brazil ◽  
Intermediate Hosts ◽  
Santa Catarina ◽  
Crop Pest ◽  
The Third ◽  
The Family ◽  
Third Stage ◽  
First Time

Angiostrongylus costaricensis is a nematode parasitic of rodents. Man may become infected by ingestion of the third stage larvae produced within the intermediate hosts, usually slugs from the family Veronicellidae. An epidemiological study carried out in a locality in southern Brazil (western Santa Catarina State) where these slugs are a crop pest and an important vector for A. costaricensis has documented for the first time the natural infection of Deroceras laeve with metastrongylid larvae. This small limacid slug is frequently found amid the folds of vegetable leaves and may be inadvertently ingested. Therefore D. laeve may have an important role in transmission of A. costaricensis to man.

Life cycle studies on two Digenea, Paradistomum geckonum (Dicrocoeliidae) and Mesocoelium sociale (Mesocoeliidae), in geckonid lizards from Indonesia

1987 ◽  
Vol 65 (10) ◽  
pp. 2491-2497 ◽  
Author(s):  
Murray J. Kennedy ◽  
L. M. Killick ◽  
M. Beverley-Burton
Keyword(s):  
Life Cycle ◽  
Intermediate Host ◽  
Intermediate Hosts ◽  
Larval Stages ◽  
Hemidactylus Frenatus ◽  
Pulmonate Gastropod ◽  
First Intermediate Host

Life cycle studies of Paradistomum geckonum (Dicrocoeliidae) were attempted experimentally. The pulmonate gastropod Lamellaxis gracilis served as the first intermediate host; geckonid lizards (Cosymbotus platyurus, Gehyra mutilata, and Hemidactylus frenatus) served as definitive hosts. The life cycle of Mesocoelium sociale (Mesocoeliidae) was studied in naturally infected first intermediate hosts (L. gracilis, Huttonella bicolor) and experimentally in geckonid definitive hosts (C. platyurus, G. mutilata, and H. frenatus). Some naturally infected L. gracilis were infected concurrently with larval stages of both digeneans. Second intermediate hosts, presumed to be arthropods, were experimentally unnecessary. Metacercariae of P. geckonum were not found. Cercariae of M. sociale formed encysted metacercariae in the same individual snails.

On the Life Cycle of Spirocerca lupi: Preinfective Stages in the Intermediate Host

1972 ◽  
Vol 46 (2) ◽  
pp. 125-137 ◽  
Author(s):  
R. C. Chhabra ◽  
Kunwar Suresh Singh
Keyword(s):  
Life Cycle ◽  
Intermediate Host ◽  
Spirocerca Lupi ◽  
Second Stage ◽  
Stage 1 ◽  
First Time

The development of the preinfective stages of S. lupi has been described and illustrated and the details of morphology given for the first time.The sex of the first stage juveniles can be distinguished by locating the position of the genital primordium. On an average, the first stage juveniles measure 0·39 mm. in length and 0·036 mm. in breadth, early second stage 0·78 and 0·044 mm. and the advanced second stage 1·40 mm. and 0·63 mm. respectively. The second stage juveniles obtained from beetles were not infective to dogs.

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