Natural and anthropogenic substrates affect movement behavior of the Southern Graycheek Salamander (Plethodon metcalfi)

2012 ◽  
Vol 90 (9) ◽  
pp. 1128-1135 ◽  
Author(s):  
R.D. Semlitsch ◽  
S. Ecrement ◽  
A. Fuller ◽  
K. Hammer ◽  
J. Howard ◽  
...  
Keyword(s):  
Latency Period ◽  
Forest Litter ◽  
Population Connectivity ◽  
Movement Behavior ◽  
Behavioral Differences ◽  
Movement Path ◽  
Anthropogenic Substrates ◽  
Forested Landscapes ◽  
Habitat Resistance ◽  
Critical Process

Movement behavior is a critical process that interacts with landscape structure to affect population connectivity and persistence in fragmented or altered landscapes. The purpose of our study was to test whether different substrates (forest litter, soil, grass, gravel, and asphalt) found in fragmented forested landscapes affected the movement behavior of the Southern Graycheek Salamander (Plethodon metcalfi Brimley, 1912). Latency period of the salamanders was highest on grass substrate and significantly lower only on soil substrate. Sinuosity of the movement path of salamanders was lowest and contained more turns in grass and was significantly higher than only gravel and asphalt substrates. Velocity of the salamanders was highest on asphalt substrate but was not different from gravel substrate. Velocity was higher on asphalt than on grass, forest, or soil, and velocity was higher on gravel than on grass substrate. The results indicated that P. metcalfi reacted differently to natural and anthropogenic substrates, and we suggest that these behavioral differences could have both positive and negative implications for movement success and habitat resistance in forested landscapes fragmented by roads and development.

A Functional Test Bed for Producing Virtual Human's Human-Like Movement Based on Limited Perception

2013 ◽  
Vol 284-287 ◽  
pp. 3251-3255
Author(s):  
Chang Hee Han ◽  
Won Il Kim ◽  
Myoung Ho Oh
Keyword(s):  
Human Subjects ◽  
Functional Test ◽  
Movement Behavior ◽  
Virtual Human ◽  
Path Generation ◽  
View Point ◽  
Test Bed ◽  
Movement Path ◽  
Human Research ◽  
Fundamental Component

In this paper, the movement behavior of a virtual human based on realistically limited perception (RLP) is proposed to be human-like. As an interface between perception and movement-path generation, a mapping module is a fundamental component needed by a virtual human. Research of the mapping based on RLP was performed by Hill et al. However, their research was conducted using only a camera’s view point. In this present research, a virtual human’s integration with Hill et al’s mapping and other variables (e.g., enemy emergence) is considered in the context of a reconnaissance mission. The loci of the movement paths that were generated by human subjects and a virtual human based on RLP are compared with each other.

Extraversion and Dopamine

1998 ◽  
Vol 3 (1) ◽  
pp. 37-50 ◽  
Author(s):  
Thomas H. Rammsayer
Keyword(s):  
Individual Differences ◽  
D2 Receptor ◽  
D2 Receptors ◽  
Behavioral Differences ◽  
Biological Mechanisms ◽  
Brain Dopamine ◽  
Personality Dimension ◽  
Time Performance ◽  
Reaction Time Performance ◽  
Induced Changes

Recent research suggests that individual differences in brain dopamine (DA) functioning may be related to the personality dimension of extraversion. The present study was designed to further elucidate the biological mechanisms underlying behavioral differences between extraverts and introverts. For this purpose, the differential effects of a pharmacologically induced blockade of mesolimbocortical DA D2 receptors on reaction-time performance were investigated in 24 introverted and 24 extraverted subjects. Introverts were found to be much more susceptible to pharmacologically induced changes in D2 receptor activity than extraverts. This finding provides additional experimental evidence for the notion that individual differences in D2 receptor responsivity may represent a neurobiological substratum for the personality dimension of extraversion.

The Child in the Latency Period

1958 ◽  
Vol 3 (2) ◽  
pp. 29-30
Author(s):  
SAM L. WITRYOL
Keyword(s):  
Latency Period

Searching for O: Evidence for cognitive control in eye-movement behavior

2009 ◽  
Author(s):  
Polina M. Vanyukov ◽  
Erik D. Reichle ◽  
Tessa Warren
Keyword(s):  
Cognitive Control ◽  
Eye Movement ◽  
Movement Behavior

Race on Both Sides of the Razor

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Terence D. Keel
Keyword(s):  
Social Constructionism ◽  
Political Correctness ◽  
Genetic Basis ◽  
Genetic Research ◽  
Scientific Progress ◽  
Social Constructionist ◽  
Behavioral Differences ◽  
Social Activists ◽  
Continued Use ◽  
Biological Differences

The proliferation of studies declaring that there is a genetic basis to health disparities and behavioral differences across the so-called races has encouraged the opponents of social constructionism to assert a victory for scientific progress over political correctness. I am not concerned in this essay with providing a response to critics who believe races are expressions of innate genetic or biological differences. Instead, I am interested in how genetic research on human differences has divided social constructionists over whether the race concept in science can be used for social justice and redressing embodied forms of discrimination. On one side, there is the position that race is an inherently flawed concept and that its continued use by scientists, medical professionals, and even social activists keeps alive the notion that it has a biological basis. On the other side of this debate are those who maintain a social constructionist position yet argue that not all instances of race in science stem from discriminatory politics or the desire to prove that humans belong to discrete biological units that can then be classified as superior or inferior. I would like to shift this debate away from the question of whether race is real and move instead toward thinking about the intellectual commitments necessary for science to expose past legacies of discrimination.

Two Representations of the Moscow Art Theater Audience

2020 ◽  
Vol 17 (5) ◽  
pp. 462-476
Author(s):  
Alexander A. Ushkarev ◽  
Galina G. Gedovius ◽  
Tatyana V. Petrushina
Keyword(s):  
Online Community ◽  
Modern Art ◽  
Virtual Space ◽  
Demographic Parameters ◽  
Cultural Consumption ◽  
Cultural Activity ◽  
Behavioral Differences ◽  
Technological Revolution ◽  
Definition Of

The technological revolution of recent decades has already brought art to the broadest masses, and the unexpected intervention of the pandemic has significantly accelerated the process of migration of theatrical art to the virtual space, causing the corresponding dynamics of the audience. What is the theater audience in the era of digitalization and the spread of alternative forms of cultural consumption? How does the theater build its relationship with the audience today? In search of answers, we conducted a series of sociological surveys of the Chekhov Moscow Art Theater’s audience — both at the theater’s performances and in the online community of its fans. The purpose of this phase of the study was to answer the fundamental questions: do spectators surveyed in the theater and those surveyed online represent the same audience; what are their main differences; and what are the drivers of their spectator behavior? The article presents the main results of a comparative analysis of two images of the Moscow Art Theatre’s audience based on a number of content parameters by two types of surveys, as well as the results of a regression analysis of the theater attendance. The study resulted in definition of the qualitative and behavioral differences between the theater visitors and the viewers surveyed online, and identification of the factors of theater attendance for both of the represented audience groups. The study made it possible to clarify the role of age and other socio-demographic parameters in cultural activity, as well as the influence of preferred forms of cultural consumption (live contacts or online views) on one’s attitude to art, motivation and spectator behavior. The conclusions of the study, despite the uniqueness of the object, reflect the general patterns of the modern art audience’s dynamics.

Tuberculosis, an old disease, still present in Romania

Farmacist ro ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 6-13
Author(s):  
Cristina Daniela Marineci ◽  
Cristina Elena Zbârcea ◽  
Simona Negreş
Keyword(s):  
Miliary Tuberculosis ◽  
Latency Period ◽  
Latent Tuberculosis ◽  
Multidrug Resistant ◽  
Active Immunization ◽  
Sputum Smear ◽  
The European Union ◽  
Directly Observed Therapy ◽  
Resistant Tuberculosis ◽  
Antituberculosis Treatment

Tuberculosis is a chronic infection, most often affecting the lungs, which usually manifests after a latency period from primary infection with Mycobacterium tuberculosis. Symptoms are generally nonspecific, with fever, cough, weight loss and malaise. The diagnosis is based on microscopic examination of sputum smear and rapid diagnostic molecular tests, which are increasingly used today. Genotypic tests for establishing the strain involved and phenotypic antibiograms for early detection of drug resistance should guide the initiation of treatment but are still expensive. Treatment of active tuberculosis is done with combination of antimycobacterial drugs, administered for at least 6 months. The antituberculosis treatment has several purposes: to cure the patient, to reduce the risk of recurrence, to prevent the installation of chemo-resistance, to prevent complications and to reduce mortality, as well as to limit the spread of the infection. Drug combinations are used to prevent the development of resistance. The administration is long-lasting in order to achieve the sterilization of foci that are difficult to access by medicines, ensuring healing and relapse prevention. Generally, standard pharmacological protocols are used. In order to increase the adherence to the treatment and its completion, often the anti-tuberculosis treatment is done under direct observation, in what is called directly observed therapy. Undesirable effects of anti-tuberculosis drugs should be detected early and managed appropriately. Recently, many cases of tuberculosis are resistant to the first-line drugs isoniazid and rifampicin (multidrug-resistant tuberculosis), or to these drugs, fluoroquinolones and at least one injectable antimycobacterial drugs (extensively drug-resistant tuberculosis). Especially the treatment of the latter is difficult to do, because there are not currently too many therapeutic options. That is why it is important to detect the resistance early and to establish the appropriate treatment. Treatment of latent tuberculosis usually involves the administration of isoniazid for 9 months. BCG vaccination is an active immunization method used in countries with high incidence of tuberculosis (Romania being the country of the European Union with the highest incidence of tuberculosis), protecting mainly against miliary tuberculosis, a spread form of tuberculosis, severe especially in children.  

Sign in / Sign up

Export Citation Format

Share Document