scholarly journals Combining superior alleles from two homozygous populations in a cross-fertilizing species

1980 ◽  
Vol 36 (3) ◽  
pp. 277-287 ◽  
Author(s):  
Y. T. Ho ◽  
R. E. Comstock
Keyword(s):  
Real Life ◽  
The Other ◽  
Relative Fitness ◽  
Source Population ◽  
Effective Population ◽  
Complete Dominance ◽  
Selection Limit ◽  
The Difference ◽  
Source Populations ◽  
Foundation Stock

SUMMARYThe issue of incorporating the good alleles from two homozygous populations of a cross-fertilizing species into a single improved population was investigated assuming independent assortment, no epistasis, and either complete dominance (of the favourable or the unfavourable alleles) or additive genes. The selection limit in the foundation stock is a function of the effective population size (N), the proportion (x) contributed by the better source population (P1), the difference in relative fitness between single locus homozygotes and the proportion of loci (that will segregate in the foundation stock) fixed favourably in P1. In real life the last two of these are never known. We therefore focused on the response limits given x = 0·5, 0·75, 0·875 or the optimum value of x (which is a function of the other three parameters). Our general finding was that in situations where N is large enough so that a major portion of the potential can be achieved, the F2 population should be used as the foundation stock when the two source populations do not differ greatly in performance; but when one population performs considerably better than the other, the first backcross (but not second backcross) would be the choice.

scholarly journals Compensation is for real: Evidence from existing groups in the context of actual relations

2016 ◽  
Vol 20 (6) ◽  
pp. 745-756 ◽  
Author(s):  
Laurent Cambon ◽  
Vincent Y. Yzerbyt
Keyword(s):  
Real Life ◽  
Social Judgment ◽  
The Other ◽  
Ingroup Bias ◽  
Life Situation ◽  
The Status ◽  
Real Life Situation ◽  
Status Difference ◽  
The Difference

Compensation refers to the fact that a group perceived as higher than another on one of the fundamental dimensions of social judgment (competence and warmth) is also perceived as lower than the other group on the other dimension. Relying on a full-crossed design, the present work tested compensation in a real-life situation using existing groups involved in an ongoing relation. As predicted, compensation emerged when (a) the difference between the groups, and thus the perceived legitimacy of the status difference, was large as opposed to small, and (b) the relation between the groups was asymmetrical. In contrast, the smaller the difference (the lesser the legitimacy), the more ingroup bias emerged.

An Automated Vision System for Vehicle License Plate Localization, Segmentation in Real Life Scene

2018 ◽  
Vol 32 (07) ◽  
pp. 1855010
Author(s):  
Bei Chen ◽  
Wenlun Cao ◽  
Yuyao He
Keyword(s):  
Fractal Dimension ◽  
Vision System ◽  
Real Life ◽  
Image Data ◽  
Spatial Location ◽  
The Other ◽  
License Plate ◽  
Fractal Characteristic ◽  
Video Frames ◽  
The Difference

In this paper, we propose an image-based approach to detect the presence of a vehicle license plate (VLP) in a traffic image. This method is based on the fractal character difference between the VLP region and the other regions. The technique extracts information from fractal feature blocks and computes the dimension zone that describes the difference between the license plate and the other areas in the scene. A new fractal-dimension computing method aimed at gray-image data has been presented and been applied to image segmentation. Three indexes have been defined to measure the performance of the method. The fractal-dimension parameter’s choice and self-adapting adjustment have been discussed in detail. Further, the proposed system has been evaluated using test and verification datasets and has been proven to be robust against common issues of traffic images, such as varying illumination, camera vibration, insensitivity to vehicle plate’s color and location, and high noise levels. Since there is always a large number of fractal characteristic blocks around the same spatial location in traffic video frames, the efficiency of the proposed algorithm for video will be greatly improved.

scholarly journals Evidence for a new major gene influencing meat quality in pigs

1990 ◽  
Vol 55 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Pascale Le Roy ◽  
J. Naveau ◽  
J. M. Elsen ◽  
P. Sellier
Keyword(s):  
Major Gene ◽  
Maximum Likelihood Estimates ◽  
Quality Trait ◽  
Likelihood Ratios ◽  
Common Component ◽  
Polygenic Inheritance ◽  
Complete Dominance ◽  
Unfavourable Effect ◽  
The Difference ◽  
Foundation Stock

SummaryThe present investigation primarily deals with the inheritance of a pigmeat quality trait, the Napole technological yield (RTN), a measure of cooked weight to fresh weight. This trait as well as lean percentage at 100 kg liveweight and fattening length from 20 to 100 kg liveweight were recorded on 3459 offspring from 67 sires and 433 dams, and 3052 offspring from 64 sires and 405 dams in Penshire (P66) and Pen Ar Lan (P77) composite lines respectively. The hypothesis of a major 2-allele locus contributing to RTN was tested by use of a segregation analysis method. Highly significant likelihood ratios (mixed vs. polygenic transmission models) lead us to conclude that a major gene RN− exerting an unfavourable effect on RTN is segregating in both lines. Maximum likelihood estimates of the parameters under the hypothesis of mixed (monogenic + polygenic) inheritance show that the difference between the means of the 2 homozygotes amounts to about 3 phenotypic standard deviations of the trait, whereas the complete dominance of RN− cannot be rejected. The frequency of RN− is about 0·6 in both lines. These results are discussed in connection with the previously reported ‘Hampshire effect’ on pigmeat quality, as the Hampshire breed is a common component of the foundation stock of the 2 composite lines under study.

Choosing source populations for conservation reintroductions: lessons from variation in thermal tolerance among populations of the imperilled redside dace

2021 ◽  
Author(s):  
Andy J Turko ◽  
Alexandra T.A. Leclair ◽  
Nicholas E. Mandrak ◽  
D. Andrew R. Drake ◽  
Graham R Scott ◽  
...  
Keyword(s):  
Thermal Tolerance ◽  
Selection Process ◽  
The Other ◽  
Source Population ◽  
Thermal Safety ◽  
Safety Margins ◽  
Population Selection ◽  
Acclimation Response ◽  
Research Populations ◽  
Source Populations

Reintroduction is an increasingly common conservation tool to recover populations of imperilled species, but success depends on the suitability of the introduced animals’ phenotype for their new habitat. For fishes, thermal tolerance may be a key trait in urbanized habitats. We compared thermal tolerance (CTmax) among three lineages (western, central, eastern) of imperilled redside dace Clinostomus elongatus. CTmax of eastern adults was 3-4°C lower than the other lineages, but adults of each lineage had similar thermal acclimation responses. In contrast, the acclimation response of juveniles differed by ~80% between the central and western lineages. Using this data, we predicted how each lineage would fare in a hypothetical reintroduction to relatively warm urbanized habitats. Due to the differences in juvenile acclimation responses, predicted thermal safety margins for the central lineage were double those predicted for the western lineage. Overall, we suggest that CTmax is a useful trait to incorporate into the source population selection process. However, there is an urgent need for the establishment of captive experimental research populations of imperilled species to address remaining uncertainties.

scholarly journals How to Domesticate Otherness: Three Metaphors of Otherness in the European Cultural Tradition

Paideusis ◽  
2020 ◽  
Vol 16 (3) ◽  
pp. 33-43
Author(s):  
Robi Kroflic
Keyword(s):  
Life Experience ◽  
Real Life ◽  
Radical Change ◽  
The Other ◽  
Cultural Tradition ◽  
Collective Identities ◽  
Educational Processes ◽  
The Face ◽  
History Of ◽  
The Difference

Individual and collective identities always develop in relation to the other as different, and in this process, the otherness is always subjected to the attempts of cultivation/domestication. In the history of European thought, we can recognize three metaphors which express the impossibility of seeing the other as different: the metaphors of The Leper, The Court Fool and The Noble Savage. They developed on the basis of the relationship between the difference and common rationality, which means that a more inclusive relationship to otherness as a conversational ideal could be formed if we were able shift the emphasis of ethical discourse from the universal concept of autonomy to respect for authenticity and to Levinas’s ethics of “the face of the other”. Such a step requires a radical change of discursive practices of all involved in the educational processes. That is why I propose the principle of observing the face of the other as different in both real-life experience and in expressive images of art, as well as the recognition and acceptance of otherness at the very core of our own identity.

scholarly journals Autosomal admixture levels are informative about sex bias in admixed populations

2014 ◽  
Author(s):  
Amy Goldberg ◽  
Paul Verdu ◽  
Noah A Rosenberg
Keyword(s):  
Sex Chromosomes ◽  
Sex Bias ◽  
Source Population ◽  
Effective Population ◽  
History Of ◽  
Specific Source ◽  
Unequal Number ◽  
Admixed Population ◽  
Source Populations

AbstractSex-biased admixture has been observed in a wide variety of admixed populations. Genetic variation in sex chromosomes and ratios of quantities computed from sex chromosomes and autosomes have often been examined in order to infer patterns of sex-biased admixture, typically using statistical approaches that do not mechanistically model the complexity of a sex-specific history of admixture. Here, expanding on a model of Verdu & Rosenberg (2011) that did not include sex specificity, we develop a model that mechanistically examines sex-specific admixture histories. Under the model, multiple source populations contribute to an admixed population, potentially with their male and female contributions varying over time. In an admixed population descended from two source groups, we derive the moments of the distribution of the autosomal admixture fraction from a specific source population as a function of sex-specific introgression parameters and time. Considering admixture processes that are constant in time, we demonstrate that surprisingly, although the mean autosomal admixture fraction from a specific source population does not reveal a sex bias in the admixture history, the variance of autosomal admixture is informative about sex bias. Specifically, the long-term variance decreases as the sex bias from a contributing source population increases. This result can be viewed as analogous to the reduction in effective population size for populations with an unequal number of breeding males and females. Our approach can contribute to methods for inference of the history of complex sex-biased admixture processes by enabling consideration of the effect of sex-biased admixture on autosomal DNA.

Enhancement of ADP-induced Platelet Aggregation by Adrenaline in Vivo and Its Prevention

1973 ◽  
Vol 29 (02) ◽  
pp. 490-498 ◽  
Author(s):  
Hiroh Yamazaki ◽  
Itsuro Kobayashi ◽  
Tadahiro Sano ◽  
Takio Shimamoto
Keyword(s):  
Platelet Count ◽  
Platelet Aggregation ◽  
Platelet Rich Plasma ◽  
The Other ◽  
Endothelial Surface ◽  
Important Interaction ◽  
Blood Coagulability ◽  
The Difference

SummaryThe authors previously reported a transient decrease in adhesive platelet count and an enhancement of blood coagulability after administration of a small amount of adrenaline (0.1-1 µg per Kg, i. v.) in man and rabbit. In such circumstances, the sensitivity of platelets to aggregation induced by ADP was studied by an optical density method. Five minutes after i. v. injection of 1 µg per Kg of adrenaline in 10 rabbits, intensity of platelet aggregation increased to 115.1 ± 4.9% (mean ± S. E.) by 10∼5 molar, 121.8 ± 7.8% by 3 × 10-6 molar and 129.4 ± 12.8% of the value before the injection by 10”6 molar ADP. The difference was statistically significant (P<0.01-0.05). The above change was not observed in each group of rabbits injected with saline, 1 µg per Kg of 1-noradrenaline or 0.1 and 10 µg per Kg of adrenaline. Also, it was prevented by oral administration of 10 mg per Kg of phenoxybenzamine or propranolol or aspirin or pyridinolcarbamate 3 hours before the challenge. On the other hand, the enhancement of ADP-induced platelet aggregation was not observed in vitro, when 10-5 or 3 × 10-6 molar and 129.4 ± 12.8% of the value before 10∼6 molar ADP was added to citrated platelet rich plasma (CPRP) of rabbit after incubation at 37°C for 30 second with 0.01, 0.1, 1, 10 or 100 µg per ml of adrenaline or noradrenaline. These results suggest an important interaction between endothelial surface and platelets in connection with the enhancement of ADP-induced platelet aggregation by adrenaline in vivo.

Energy Approximation

2017 ◽  
Author(s):  
Philip Isett
Keyword(s):  
Main Lemma ◽  
The Other ◽  
Coarse Scale ◽  
Continuous Solutions ◽  
Material Derivative ◽  
Energy Variation ◽  
Energy Approximation ◽  
The Difference ◽  
Derivatives Of

This chapter presents the equations and calculations for energy approximation. It establishes the estimates (261) and (262) of the Main Lemma (10.1) for continuous solutions; these estimates state that we are able to accurately prescribe the energy that the correction adds to the solution, as well as bound the difference between the time derivatives of these two quantities. The chapter also introduces the proposition for prescribing energy, followed by the relevant computations. Each integral contributing to the other term can be estimated. Another proposition for estimating control over the rate of energy variation is given. Finally, the coarse scale material derivative is considered.

Pengaruh Unsur Budaya Lokal dalam Ungkapan Berbahasa Perancis

Metahumaniora ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 378
Author(s):  
Vincentia Tri Handayani
Keyword(s):  
Mental Representation ◽  
Cultural Context ◽  
Oral Tradition ◽  
Minimal Element ◽  
The Other ◽  
Local Culture ◽  
Community Groups ◽  
Cultural Community ◽  
The Difference ◽  
Complex Words

AbstrakFolklor yang menghasilkan tradisi lisan merupakan perwujudan budaya yang lahirdari pengalaman kelompok masyarakat. Salah satu bentuk tradisi lisan adalah ungkapan yangmengandung unsur budaya lokal dalam konstruksinya yang tidak dimiliki budaya lainnya.Ungkapan idiomatis memberikan warna pada bahasa melalui penggambaran mental. Dalambahasa Perancis, ungkapan dapat berupa locution dan expression. Perbedaan motif acuansuatu ungkapan dapat terlihat dari pengaruh budaya masyarakat pengguna bahasa. Sebuahleksem tidak selalu didefinisikan melalui unsur minimal, tidak juga melalui kata-kata,baik kata dasar atau kata kompleks, namun dapat melalui kata-kata beku yang maknanyatetap. Hubungan analogis dari makna tambahan yang ada pada suatu leksem muncul dariidentifikasi semem yang sama. Semem tersebut mengarah pada term yang diasosiasikan danyang diperkaya melalui konteks (dalam ungkapan berhubungan dengan konteks budaya).Kata kunci: folklor, ungkapan, struktur, makna idiomatis, kebudayaanAbstractFolklore which produces the oral tradition is a cultural manifestation born out theexperience of community groups. One form of the oral tradition is a phrase that containsthe elements of local culture in its construction that is not owned the other culture. Theidiomatic phrase gives the color to the language through the mental representation. InFrench, the expression can consist of locution and expression. The difference motivesreference of an expression can be seen from the influence of the cultural community thelanguage users. A lexeme is not always defined through a minimal element, nor throughwords, either basic or complex words, but can be through the frost words whose meaningsare fixed. The analogical connection of the additional meanings is on a lexeme arises fromthe identification of the same meaning. The meaning ‘semem’ leads to the associated termsand which are enriched through the context (in idiom related to the cultural context).Keywords : folklore, idioms, structure, idiom meaning, cultureI PENDAHULUAN

Rhetoric and argumentation: the unity of the field

2017 ◽  
Author(s):  
Michel Meyer
Keyword(s):  
The Other ◽  
Classic Problem ◽  
False Dilemma ◽  
The Difference ◽  
As If

Rhetoric has always been torn between the rhetoric of figures and the rhetoric of conflicts or arguments, as if rhetoric were exclusively one or the other. This is a false dilemma. Both types of rhetoric hinge on the same structure. A common formula is provided in Chapter 3 which unifies rhetoric stricto sensu and rhetoric as argumentation as two distinct but related strategies adopted according to the level of problematicity of the questions at stake, thereby giving unity to the field called “Rhetoric.” Highly problematic questions require arguments to justify their answers; non-divisive ones can be treated rhetorically through their answers as if they were self-evident. Another classic problem is how to understand the difference between logic and rhetoric. The difference between the two is due to the presence of questions explicitly answered in the premises in logic and only suggested (or remaining indeterminate) in rhetoric.

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