scholarly journals Evidence of Competition Between Two Canopy Ant Species: Is Aggressive Behavior Innate or Shaped by a Competitive Environment?

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Nádia Barbosa do Espírito Santo ◽  
Sérvio Pontes Ribeiro ◽  
Juliane Floriano Santos Lopes
Keyword(s):  
Aggressive Behavior ◽  
Dominant Species ◽  
Montane Forest ◽  
The Other ◽  
Competitive Environment ◽  
Ecological Communities ◽  
Field Site ◽  
Other Hand ◽  
Camponotus Rufipes ◽  
Bait Traps

Competition occurs in all ecological communities, although it has not always been experimentally tested as a structuring force in the distribution of species. We tested the hypothesis that the aggressiveness exhibited byCamponotus rufipeschanges according to the pressures of a competitive environment. This is a dominant species in the montane forest of the Itacolomi State Park, Brazil, whereCamponotus sericeiventrisdoes not occur. Using bait traps in a field site where both species occur, (“Juiz de Fora” site) we showed thatC. sericeiventriswas able to removeC. rufipesworkers at the same bait. In the laboratory, we used dyadic encounters to test workers from both species taken from colonies found in areas where both occur and where onlyC. rufipeswas found.Camponotus rufipesfrom Itacolomi fought significantly less and was killed during the first few minutes in 60% of the events. On the other hand, the workers that co-existed withC. sericeiventrisin the field were more aggressive, but less efficient fighters than the latter. This investigation demonstrated existence of competition betweenC. rufipesandC. sericeiventris, and also the lower aggressiveness ofC. rufipes'individuals that did not co-exist in the field withC. sericeiventris.

Benthic community structure of the Bosphorus and surrounding area

2002 ◽  
Vol 46 (8) ◽  
pp. 37-44 ◽  
Author(s):  
A. Uysal ◽  
A. Yüksek ◽  
E. Okuş ◽  
N. Yilmaz
Keyword(s):  
Black Sea ◽  
Dominant Species ◽  
Lower Layer ◽  
Current System ◽  
Temporal Distribution ◽  
Wide Distribution ◽  
The Other ◽  
The Black Sea ◽  
Sea Of Marmara ◽  
Other Hand

Spatial and temporal distribution of benthic communities around the Strait of Istanbul (Bosphorus) and the effect of lower layer discharge on these communities have been evaluated during studies between FebruaryÐDecember 1999. Mytilus galloprovincialis was the dominant species with fasies at the Black Sea station that is not affected by the strait lower layer current system. On the other hand, another Black Sea station, influenced by the strait lower layer currents, has a similar biota to the strait stations. Species richness and diversity is highest in the strait than other areas. The dominant species is Maera grossimana. However, the station located at the Black Sea exit of the strait has a different biota, and various groups/species appeared to be dominant. Melinna palmata is the dominant species at the Sea of Marmara during the study period. Low dissolved oxygen values of lower layer and soft substratum of sediment resulted in wide distribution of Melinna palmata, adapted to these conditions. The closer stations to the strait in the Sea of Marmara have higher diversity as a result of hydrodynamic processes. On the other hand, coastal stations with low currents and inputs have lower index values, showing the negative effect of discharges and pollution.

scholarly journals Aggression towards Referees in Amateur Football in Spain: A Loglinear Approach

2019 ◽  
Vol 18 (3) ◽  
pp. 1-13 ◽  
Author(s):  
Diego Fuente ◽  
Enrique Cantón ◽  
Francisco Montes ◽  
María Ángeles Sanruperto Abella
Keyword(s):  
Aggressive Behavior ◽  
Aggressive Behaviour ◽  
Ad Hoc ◽  
The Other ◽  
Loglinear Model ◽  
The Third ◽  
Youth Football ◽  
Other Hand ◽  
The City

Aggressive behavior towards football referees is becoming increasingly common, and as a result we are getting used to it and coming to see it as an inevitable and intrinsic element of football matches. Spectators, players and coaches are all prone to take this view. This article studies how the types of aggression shown by these three groups towards the referee are related to one another, and how they are perceived by the referee, in amateur football. For this purpose, the phenomenon was assessed, using an ad-hoc form, both by an expert and by the referee, in 119 regional and youth football matches in the city of Valencia and surrounding municipalities. We analysed the data using a loglinear model, which enabled us to establish that from the referee’s perspective pairs of the above-mentioned groups influenced each other regardless of the attitude of the third group. On the other hand, departing from the traditional idea that aggressive behaviour by one of the groups determines the behaviour of the other two, the analysis of the expert’s opinions on the attitudes of the three groups led us to a model in which their respective actions were independent of one another.

scholarly journals Dinamika Sikap Provos Menwa Mahadhipa Batalyon 914 Ganesha UKSW Terhadap Agresi Dalam Pembentukan Disiplin

2021 ◽  
Vol 5 (1) ◽  
pp. 99-113
Author(s):  
Lezario Anantyas Basuki ◽  
Rudangta Arianti
Keyword(s):  
Qualitative Research ◽  
Aggressive Behavior ◽  
The Other ◽  
Research Approach ◽  
Aggressive Behaviors ◽  
Research Participants ◽  
Other Hand

In the Resimen Mahasiswa (menwa), all members are obligated to comply to the rules. The disciplining tactis used in menwa’s training are often associated with aggressive behavior from the provosts to the  juniors. These aggressive behaviors often cause the juniors to become victims, hence why most juniors decide to leave menwa. The purpose of this study is to determine the attitude of the Resimen Mahasiswa Satya Wacana Christian University's Provos 914 Battalion Mahadhipa towards aggression in their training. This research uses a qualitative research approach, with 2 provosts as research participants. The results of this study showed that different attitudes of the two participants will result in different internal responses which will form a certain belief. This belief can also form different results in the behavior of the two participants. On the other hand, different internal responses can also produce similar behavior.

scholarly journals الدور الريادي للقيادات الادارية في تعزيز التنمية المستدامة – دراسة استطلاعية لعدد من الكليات في جامعتي كركوك وتكريت

2020 ◽  
Vol 1 (1) ◽  
pp. 56-72
Author(s):  
شيماء الهاشمي ◽  
جمال الجبوري
Keyword(s):  
Sustainable Development ◽  
Survey Methodology ◽  
The Other ◽  
Competitive Environment ◽  
Senior Leaders ◽  
The Sustainable Development ◽  
Leading Role ◽  
Other Hand ◽  
Administrative Leaders

As a result of the uncertainties in the environment of contemporary organizations and the intensification of the competitive environment in them, and the correlation with the diversity and increasing aspirations and expectations of the beneficiaries of the outputs of the organization on the other hand to become the leading role of the administrative leaders the most appropriate approach to achieve the objectives of those parties benefiting from the existence of the Organization and promote sustainable development On the other hand, the aim of the research is to identify the nature of the leading role of the higher leaders in promoting the sustainable development of a number of faculties of the Universities of Kirkuk and Tikrit, through the use of the survey methodology to collect data, The study concludes with a set of recommendations, the most important of which is the adoption of senior leaders in the field concerned with the concept of entrepreneurship by providing the basic elements of this concept as well as identifying the positive aspects that promote sustainable development and address negative situations. Which hinder their access.

A study of cometary eruptions through OH radio-lines

1999 ◽  
Vol 173 ◽  
pp. 249-254
Author(s):  
A.M. Silva ◽  
R.D. Miró
Keyword(s):  
Short Duration ◽  
Growth Curves ◽  
The Other ◽  
Initial Mass ◽  
Radio Lines ◽  
Other Hand ◽  
Sudden Rise

AbstractWe have developed a model for theH2OandOHevolution in a comet outburst, assuming that together with the gas, a distribution of icy grains is ejected. With an initial mass of icy grains of 108kg released, theH2OandOHproductions are increased up to a factor two, and the growth curves change drastically in the first two days. The model is applied to eruptions detected in theOHradio monitorings and fits well with the slow variations in the flux. On the other hand, several events of short duration appear, consisting of a sudden rise ofOHflux, followed by a sudden decay on the second day. These apparent short bursts are frequently found as precursors of a more durable eruption. We suggest that both of them are part of a unique eruption, and that the sudden decay is due to collisions that de-excite theOHmaser, when it reaches the Cometopause region located at 1.35 × 105kmfrom the nucleus.

Closing the GAP—A 5Å Scanning Microscope

1969 ◽  
Vol 27 ◽  
pp. 6-7
Author(s):  
A. V. Crewe
Keyword(s):  
Normal Form ◽  
The Other ◽  
Resolving Power ◽  
Scanning Microscope ◽  
Conventional Microscope ◽  
Other Hand ◽  
Closing The Gap ◽  
Thermal Sources ◽  
Better Than ◽  
Transmission Microscope

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.

Life Beyond 1MeV

1980 ◽  
Vol 38 ◽  
pp. 30-33
Author(s):  
K.H. Westmacott
Keyword(s):  
Electron Microscopy ◽  
Past Experience ◽  
The Other ◽  
Good Case ◽  
Other Hand ◽  
The U.S

Life beyond 1MeV – like life after 40 – is not too different unless one takes advantage of past experience and is receptive to new opportunities. At first glance, the returns on performing electron microscopy at voltages greater than 1MeV diminish rather rapidly as the curves which describe the well-known advantages of HVEM often tend towards saturation. However, in a country with a significant HVEM capability, a good case can be made for investing in instruments with a range of maximum accelerating voltages. In this regard, the 1.5MeV KRATOS HVEM being installed in Berkeley will complement the other 650KeV, 1MeV, and 1.2MeV instruments currently operating in the U.S. One other consideration suggests that 1.5MeV is an optimum voltage machine – Its additional advantages may be purchased for not much more than a 1MeV instrument. On the other hand, the 3MeV HVEM's which seem to be operated at 2MeV maximum, are much more expensive.

Can the Academic Self-Concept be Positive and Realistic?

2005 ◽  
Vol 19 (3) ◽  
pp. 129-132 ◽  
Author(s):  
Reimer Kornmann
Keyword(s):  
Academic Performance ◽  
Opposite Effect ◽  
Self Esteem ◽  
Point Of View ◽  
The Other ◽  
Self Concept ◽  
High Ability ◽  
Self Image ◽  
Other Hand

Summary: My comment is basically restricted to the situation in which less-able students find themselves and refers only to literature in German. From this point of view I am basically able to confirm Marsh's results. It must, however, be said that with less-able pupils the opposite effect can be found: Levels of self-esteem in these pupils are raised, at least temporarily, by separate instruction, academic performance however drops; combined instruction, on the other hand, leads to improved academic performance, while levels of self-esteem drop. Apparently, the positive self-image of less-able pupils who receive separate instruction does not bring about the potential enhancement of academic performance one might expect from high-ability pupils receiving separate instruction. To resolve the dilemma, it is proposed that individual progress in learning be accentuated, and that comparisons with others be dispensed with. This fosters a self-image that can in equal measure be realistic and optimistic.

Stories and the Self

2020 ◽  
Vol 32 (2) ◽  
pp. 47-58 ◽  
Author(s):  
Stefan Krause ◽  
Markus Appel
Keyword(s):  
Meta Analysis ◽  
The Self ◽  
The Other ◽  
Lower Degree ◽  
Contrast Effects ◽  
Self Perception ◽  
Self Perceptions ◽  
Other Hand ◽  
The One ◽  
Implicit And Explicit

Abstract. Two experiments examined the influence of stories on recipients’ self-perceptions. Extending prior theory and research, our focus was on assimilation effects (i.e., changes in self-perception in line with a protagonist’s traits) as well as on contrast effects (i.e., changes in self-perception in contrast to a protagonist’s traits). In Experiment 1 ( N = 113), implicit and explicit conscientiousness were assessed after participants read a story about either a diligent or a negligent student. Moderation analyses showed that highly transported participants and participants with lower counterarguing scores assimilate the depicted traits of a story protagonist, as indicated by explicit, self-reported conscientiousness ratings. Participants, who were more critical toward a story (i.e., higher counterarguing) and with a lower degree of transportation, showed contrast effects. In Experiment 2 ( N = 103), we manipulated transportation and counterarguing, but we could not identify an effect on participants’ self-ascribed level of conscientiousness. A mini meta-analysis across both experiments revealed significant positive overall associations between transportation and counterarguing on the one hand and story-consistent self-reported conscientiousness on the other hand.

Don’t Put Me in This Group

2019 ◽  
Vol 50 (2) ◽  
pp. 80-93
Author(s):  
Jort de Vreeze ◽  
Christina Matschke
Keyword(s):  
Positive Emotions ◽  
Negative Emotions ◽  
Negative Information ◽  
The Self ◽  
The Other ◽  
Other Hand ◽  
Group Memberships

Abstract. Not all group memberships are self-chosen. The current research examines whether assignments to non-preferred groups influence our relationship with the group and our preference for information about the ingroup. It was expected and found that, when people are assigned to non-preferred groups, they perceive the group as different to the self, experience negative emotions about the assignment and in turn disidentify with the group. On the other hand, when people are assigned to preferred groups, they perceive the group as similar to the self, experience positive emotions about the assignment and in turn identify with the group. Finally, disidentification increases a preference for negative information about the ingroup.

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