Results 111 to 120 of about 32,903 (300)

Information and Meaning in Life, Humans and Robots [PDF]

open access: yes, 2005
Information and meaning exist around us and within ourselves, and the same information can correspond to different meanings. This is true for humans and animals, and is becoming true for robots.
Menant, Christophe
core  

Primary and secondary siRNA synthesis triggered by RNAs from food bacteria in the ciliate Paramecium tetraurelia

open access: yesNucleic Acids Research, 2015
In various organisms, an efficient RNAi response can be triggered by feeding cells with bacteria producing double-stranded RNA (dsRNA) against an endogenous gene.
Q. Carradec   +6 more
semanticscholar   +1 more source

Immunological studies on the sexual recognition molecules in paramecium caudatum [PDF]

open access: yes, 2002
In Paramecium, when cells of the odd (O) and even (E) complementary mating types are mixed together under appropriate conditions, they undergo massive agglutination, which eventually leads to conjugation.
Xu Xuehua, 許 雪花
core  

Gause's exclusion principle revisited: artificial modified species and competition

open access: yes, 2000
Gause's principle of competition between two species is studied when one of them is sterile. We study the condition for total extinction in the niche, namely, when the sterile population exterminates the native one by an optimal use of resources.
Aluja M   +10 more
core   +2 more sources

The mechanics of gravitaxis inParamecium [PDF]

open access: yesJournal of Experimental Biology, 2010
SUMMARYAn analysis of swimming patterns in the ciliate Paramecium shows that the ability to swim preferentially upwards (negative gravitaxis) is primarily the result of upwardly curving trajectories. The trajectory characteristics are consistent with those produced by mechanical orientation. Cell profile measurements from microscope images suggest that
openaire   +3 more sources

The Neuromotor Apparatus of Paramecium [PDF]

open access: yesThe American Naturalist, 1921
Cover-title. ; "Literature cited": p. 353-355. ; Mode of access: Internet. ; MAIN; 308t.R328.n: Has bound with it typewritten ms. of the same. 1 p. l., 70 numb. l. (Without plates)
openaire   +4 more sources

Food and feeding habits of Synodontis nigrita from the Osun River, SW Nigeria [PDF]

open access: yes, 2003
An investigation was conducted into the food and feeding habits of Synodontis nigrita from the Osun River near Epe, Lagos, Nigeria. The food items in the stomach of the S.
Olojo, E.A.A.   +2 more
core  

THE EFFECT OF CYANIDE ON RESPIRATION IN PARAMECIUM CAUDATUM AND PARAMECIUM AURELIA

open access: yesThe Biological Bulletin, 1945
1. The oxygen consumption in Paramecium caudatum and Paramecium aurelia is partially inhibited by potassium cyanide.2. The extent of inhibition by cyanide is dependent upon the food content of the organisms as well as upon the concentration of cyanide in the solution.3. In P.
openaire   +3 more sources

THE FOOD-VACUOLE INPARAMECIUM

open access: yesThe Biological Bulletin, 1947
1. The feeding apparatus in Paramecium consists of a shallow ciliated groove, a ciliated tube which leads into the body, and a bundle Of fibers (esophageal fibers) which extend from the tube nearly to the posterior end of the body. The tube is composed of an outer part (the vestibulum) and an inner part (the pharynx).2.
openaire   +5 more sources

Somersault of Paramecium in extremely confined environments

open access: yesScientific Reports, 2015
We investigate various swimming modes of Paramecium in geometric confinements and a non-swimming self-bending behavior like a somersault, which is quite different from the previously reported behaviors.
S. Jana   +3 more
semanticscholar   +1 more source

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