Robert Kendell: his career and contribution to psychiatric diagnosis

2020 ◽  
pp. 096777202096131
Author(s):  
Geoffrey Lloyd
Keyword(s):  
Personality Disorders ◽  
Psychiatric Diagnosis ◽  
Categorical Approach ◽  
Affective Psychoses ◽  
Clear Cut ◽  
Definition Of

This paper reviews the career of Robert Kendell with emphasis on his contribution to diagnosis in psychiatry. His studies on the classification of depression showed that symptoms were distributed on a continuum and that division of depression into sub-types was not justified. Similarly he showed there was no clear-cut distinction between symptoms of schizophrenia and affective psychoses. He examined Scadding’s definition of disease as it applied to psychiatry and questioned whether some conditions such as neuroses and personality disorders would qualify as illnesses. He concluded that available evidence supported a dimensional rather than a categorical approach to diagnosis.

scholarly journals A Mathematical Interpretation of the International Classification of Headache Disorders 3rd Edition

2021 ◽  
Author(s):  
Pengfei Zhang
Keyword(s):  
Facial Pain ◽  
International Classification ◽  
Significant Implication ◽  
Headache Disorders ◽  
Categorical Approach ◽  
Mathematical Basis ◽  
Definition Of ◽  
Diagnosis Criterion ◽  
Mathematical Interpretation

International Classification of Headache Disorders (ICHD3) provides definition of headache disorders that can be used to construct a mathematical basis for headache classification. We seek to construct a theoretical framework for such a construction.Headache and facial pain conditions are interpreted as bundles of phenotypes. ICHD3 diagnoses are then defined as sets. We proceed to show that observations, in the form of theorems, can be proved with our set theoretic construction for the ICHD3.The all-present “not accounted for by another ICHD3 diagnosis” criterion must be removed in order for our system to be set theoretic consistent. Furthermore, our system can be used to construct a categorical approach to headache medicine in the tradition of category theory.Mathematical interpretation of ICHD3 is possible and may provide significant implication for understanding the structure and organization of headache diagnostic classification.

Diagnostic Practice in a Psychiatric Unit

1974 ◽  
Vol 19 (3) ◽  
pp. 287-290 ◽  
Author(s):  
Stewart Meikle ◽  
Richard Gerritse ◽  
Keith Pearce
Keyword(s):  
Personality Disorders ◽  
Psychiatric Diagnosis ◽  
Classification Scheme ◽  
Reliability And Validity ◽  
Initial Diagnosis ◽  
Psychiatric Unit ◽  
Affective Psychoses ◽  
Diagnostic Practice ◽  
The Stability ◽  
Differential Degree

This study takes the view that although psychiatric diagnosis has frequently been criticized as being deficient in terms of both reliability and validity, as long as it remains in use as a classification scheme its limitation should continue to be investigated. In line with this approach the present investigation examined three questions: What are the frequencies of major diagnostic groupings on admission to hospital? Do these frequencies change by the time discharge arrives? Are there differences in the stability of initial diagnosis for the various diagnostic sub-groupings? It was found that the most frequently used admitting diagnoses in order were: affective psychoses, neuroses and schizophrenia. Both personality disorders and other psychoses were relatively rarely used. In general the same ranking also held on discharge. However some diagnoses applied on admission appeared much more stable than others. For example 80 percent of those patients initially diagnosed as schizophrenic remained so classified on discharge. In contrast the equivalent figure for diagnoses listed under ‘other conditions’ was 46 percent. Although practitioners often talk as though diagnosis is a meaningless ritual, in fact the present study suggests a differential degree to selection and consideration in their application of psychiatric categories.

CONCEPTS AND MECHANISMS OF RESISTANCE IN HELMINTHIC INFECTIONS

1937 ◽  
Vol 15d (4) ◽  
pp. 77-90 ◽  
Author(s):  
Thomas W. M. Cameron
Keyword(s):  
Mechanisms Of Resistance ◽  
Host Environment ◽  
Clear Cut ◽  
Helminthic Infections ◽  
The Subject ◽  
Definition Of

The relations that exist between the helminths and their hosts cannot be divided into specific groups. Nevertheless, it is desirable that some classification of these relations, together with clear-cut definition of terms, be widely accepted in order that the subject may be discussed intelligibly. A tentative classification is suggested, which distinguishes between (i) compatibility and incompatibility, which refer only to the host environment as it exists before invasion by the parasite; (ii) resistance, of various kinds and degrees, which refers to the reaction of the environment to the presence of the helminth; and (iii) tolerance and intolerance, which refer to the reaction of the environment to the effects of the helminth.

scholarly journals Molecular Diversity of Mytilin-Like Defense Peptides in Mytilidae (Mollusca, Bivalvia)

Antibiotics ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 37 ◽  
Author(s):  
Samuele Greco ◽  
Marco Gerdol ◽  
Paolo Edomi ◽  
Alberto Pallavicini
Keyword(s):  
Disulfide Bonds ◽  
Molecular Diversity ◽  
Sequence Similarity ◽  
Evolutionary Relationship ◽  
Alpha Helix ◽  
Clear Cut ◽  
Marine Mussels ◽  
Defense Peptides ◽  
Definition Of

The CS-αβ architecture is a structural scaffold shared by a high number of small, cationic, cysteine-rich defense peptides, found in nearly all the major branches of the tree of life. Although several CS-αβ peptides involved in innate immune response have been described so far in bivalve mollusks, a clear-cut definition of their molecular diversity is still lacking, leaving the evolutionary relationship among defensins, mytilins, myticins and other structurally similar antimicrobial peptides still unclear. In this study, we performed a comprehensive bioinformatic screening of the genomes and transcriptomes available for marine mussels (Mytilida), redefining the distribution of mytilin-like CS-αβ peptides, which in spite of limited primary sequence similarity maintain in all cases a well-conserved backbone, stabilized by four disulfide bonds. Variations in the size of the alpha-helix and the two antiparallel beta strand region, as well as the positioning of the cysteine residues involved in the formation of the C1–C5 disulfide bond might allow a certain degree of structural flexibility, whose functional implications remain to be investigated. The identification of mytilins in Trichomya and Perna spp. revealed that many additional CS-αβ AMPs remain to be formally described and functionally characterized in Mytilidae, and suggest that a more robust scheme should be used for the future classification of such peptides with respect with their evolutionary origin.

Development and Evaluation of Fuzzy Criteria for the Diagnosis of Rheumatoid Arthritis

1996 ◽  
Vol 35 (04/05) ◽  
pp. 334-342 ◽  
Author(s):  
K.-P. Adlassnig ◽  
G. Kolarz ◽  
H. Leitich
Keyword(s):  
Rheumatoid Arthritis ◽  
Reference Model ◽  
American Rheumatism Association ◽  
Uniform Definition ◽  
Sensitivity Rate ◽  
Fuzzy Techniques ◽  
Definition Of ◽  
Different Levels ◽  
Specificity Rate

Abstract:In 1987, the American Rheumatism Association issued a set of criteria for the classification of rheumatoid arthritis (RA) to provide a uniform definition of RA patients. Fuzzy set theory and fuzzy logic were used to transform this set of criteria into a diagnostic tool that offers diagnoses at different levels of confidence: a definite level, which was consistent with the original criteria definition, as well as several possible and superdefinite levels. Two fuzzy models and a reference model which provided results at a definite level only were applied to 292 clinical cases from a hospital for rheumatic diseases. At the definite level, all models yielded a sensitivity rate of 72.6% and a specificity rate of 87.0%. Sensitivity and specificity rates at the possible levels ranged from 73.3% to 85.6% and from 83.6% to 87.0%. At the superdefinite levels, sensitivity rates ranged from 39.0% to 63.7% and specificity rates from 90.4% to 95.2%. Fuzzy techniques were helpful to add flexibility to preexisting diagnostic criteria in order to obtain diagnoses at the desired level of confidence.

ABOUT THE PROBLEM OF CLASSIFICATION OF THE CONCEPTS OF INFORMATICS STUDIED AT SECONDARY SCHOOL

2018 ◽  
pp. 4-7
Author(s):  
S. I. Zenko
Keyword(s):  
Secondary School ◽  
Foreign Language ◽  
Computer Science ◽  
Parts Of Speech ◽  
The Third ◽  
The Cross ◽  
Definition Of

The article raises the problem of classification of the concepts of computer science and informatics studied at secondary school. The efficiency of creation of techniques of training of pupils in these concepts depends on its solution. The author proposes to consider classifications of the concepts of school informatics from four positions: on the cross-subject basis, the content lines of the educational subject "Informatics", the logical and structural interrelations and interactions of the studied concepts, the etymology of foreign-language and translated words in the definition of the concepts of informatics. As a result of the first classification general and special concepts are allocated; the second classification — inter-content and intra-content concepts; the third classification — stable (steady), expanding, key and auxiliary concepts; the fourth classification — concepts-nouns, conceptsverbs, concepts-adjectives and concepts — combinations of parts of speech.

Determining the discount rate when evaluating trade organizations: Some features

2020 ◽  
Vol 13 (1) ◽  
pp. 71-84
Author(s):  
E.A. Grigor'eva ◽  
A.S. Buzhikeeva
Keyword(s):  
Discount Rate ◽  
Economic Activity ◽  
Systems Approach ◽  
Market Value ◽  
Additional Risk ◽  
Evaluation Procedures ◽  
Analytical Research ◽  
Definition Of ◽  
Traditional Approaches

Subject. This article deals with the issues of determining the market value of the trading business, taking into account a number of characteristics. Objectives. The article aims to develop certain provisions of the methodology and practice of evaluating the business of trading organizations, namely, taking into account the additional risk of inventory feasibility when calculating the discount rate. Methods. For the study, we used a systems approach, and the cognition, and economic and analytical research methods. Results. The article presents a three-tiered classification of stocks and a definition of risk based on the criteria for dividing stocks by purpose, degree of implementation, and shelf life in accordance with the scale. Based on the classification, the article offers certain recommendations for determining the discount rate when evaluating trading organizations, aimed at taking into account additional risk. Conclusions. Various evaluation procedures within the framework of traditional approaches and methods in relation to trading organizations do not take into account risk specific to this type of economic activity. The proposed methodology for calculating the discount rate for trade organizations takes into account the features of their functioning.

State Failure and the Political Violence Phenomenon: A Comparative Analysis of Iraq and Syria Cases

2016 ◽  
Vol 4 (2) ◽  
pp. 170 ◽  
Author(s):  
K. Eylem Özkaya Lassalle
Keyword(s):  
Cold War ◽  
Political Violence ◽  
State Failure ◽  
The Political ◽  
Collective Violence ◽  
Short Run ◽  
Definition Of ◽  
The Cold War

The concept of failed state came to the fore with the end of the Cold War, the collapse of the USSR and the disintegration of Yugoslavia. Political violence is central in these discussions on the definition of the concept or the determination of its dimensions (indicators). Specifically, the level of political violence, the type of political violence and intensity of political violence has been broached in the literature. An effective classification of political violence can lead us to a better understanding of state failure phenomenon. By using Tilly’s classification of collective violence which is based on extent of coordination among violent actors and salience of short-run damage, the role played by political violence in state failure can be understood clearly. In order to do this, two recent cases, Iraq and Syria will be examined.

ECOLOGICAL SIGNIFICANCE OF PHEROMONES

2020 ◽  
Vol 6 (2) ◽  
pp. 64-68
Author(s):  
Nondira Khondhodjayeva ◽  
◽  
Nurmamat Rajabov ◽  
Keyword(s):  
Biological Significance ◽  
Ecological Significance ◽  
Definition Of

This article reveals the essence of the concept of "pheromones" and their biological significance. In the article variants of their application in agriculture for struggle against insects-pests are presented. The definition of term and classification of pheromones and their types are given: feromons of insects, feromons of fish, feromons of vertebrates, feromons of humans, fermons of plants, sexual feromons, anxiety feromons, trace feromons, epidemic feromons and their functions and significance for the representative's organism and the environment as a whole

(A review). BRAUN-BLANQUETIA. Recueil de travaux de geobotanique / review of geobotanical monographs. Vol. 46. Centenaire de la phytosociologie. CAMERINO, 2010. 423 p.

2011 ◽  
pp. 143-147
Author(s):  
L. G. Naumova ◽  
V. B. Martynenko ◽  
S. M. Yamalov
Keyword(s):  
Plant Association ◽  
Northern Asia ◽  
The Third ◽  
International Botanical ◽  
International Botanical Congress ◽  
History Of ◽  
Definition Of

Date of «birth» of phytosociology (phytocenology) is considered to be 1910, when at the third International Botanical Congress in Brussels adopted the definition of plant association in the wording Including Flaó and K. Schröter (Flahault, Schröter, 1910; Alexandrov, 1969). The centenary of this momentous event in the history of phytocenology devoted to the 46th edition of the Yearbook «Braun-Blanquetia», which began to emerge in 1984 in Camerino (Italy) and it has a task to publish large geobotanical works. During the years of the publication of the Yearbook on its pages were published twice work of the Russian scientists — «The steppes of Mongolia» (Z. V. Karamysheva, V. N. Khramtsov. Vol. 17. 1995), and «Classification of continental hemiboreal forests of Northern Asia» (N. B. Ermakov in collaboration with English colleagues and J. Dring, J. Rodwell. Vol. 28. 2000).

Sign in / Sign up

Export Citation Format

Share Document