scholarly journals Morphological characteristics of local populations of European vendace Coregonus albula (L.) in some lakes of Latvia during 50 years

2009 ◽  
Vol 63 (6) ◽  
pp. 271-278 ◽  
Author(s):  
Jeļena Oreha ◽  
Nataļja Škute
Keyword(s):  
Cluster Analysis ◽  
Statistical Analysis ◽  
Morphological Characteristics ◽  
Specific Form ◽  
Living Conditions ◽  
Local Conditions ◽  
Coregonus Albula ◽  
Local Populations ◽  
History Of

Morphological characteristics of local populations of European vendace Coregonus albula (L.) in some lakes of Latvia during 50 years The vendace (Coregonus albula (L.)) is a widespread fish in the waters of the Holarctic and has been much studied in regard to history of spread and evolution. Statistical analysis of morphometric and meristic changes in Coregonus albula in some Latvian lakes for the last 50 years was conducted. Cluster analysis of meristic parameters showed that the vendace populations of lakes Stirnu - Alūksnes have become closer in meristic properties while the vendace populations of lakes Drīdzis - Sventes have become more dissimilar. The diversity and variation of morphological characteristics of vendace in the studied lakes are within the range of variations of the European vendace (Coregonus albula), although due to its flexibility it makes a lake-specific form depending on the local conditions of each reservoir. The discovered differences in the vendace populations from Lakes Nirzas, Rāznas, Stirnu, Alūksnes, Drīdzis, and Sventes seem to have resulted solely from/due to the adaptation of vendace to living conditions, which has changed during the previous 50 years.

Statistical Analysis of Personnel Data Using Factor Scoring Cluster Analysis and Multidimensional Scaling

1973 ◽  
Author(s):  
Robert R. Read ◽  
Richard S. Elster ◽  
Gerald L. Musgrave ◽  
John W. Creighton ◽  
William H. Githens
Keyword(s):  
Cluster Analysis ◽  
Statistical Analysis ◽  
Multidimensional Scaling

Insurgency, Land Rights and Feminism: Zapatista Women Building Themselves as Political Subjects

2021 ◽  
Vol 10 (1) ◽  
pp. 86-109
Author(s):  
Clara Bellamy
Keyword(s):  
Land Rights ◽  
Living Conditions ◽  
Nation State ◽  
Armed Struggle ◽  
Gender And Race ◽  
The World ◽  
History Of

This article discusses how Zapatista women have built themselves as transformative political subjects that disrupt the racist, classist, and patriarchal nation-state. It underscores the importance of reflecting on Zapatista women, on their struggle for particular demands specified in the Revolutionary Women’s Law, especially the collective struggle for obtaining rights such as to land, to participate politically, and to organize themselves in the armed struggle. Instead of entering into debate over whether Zapatista women are feminists or not, this article recognizes how, besides transforming living conditions, the Zapatistas have organized politically and gone from a process of invisibility, silence, and obedience to one of recognition, speech, and command. In this sense, the struggle of Zapatista women is an example of theoretical and practical ruptures within the history of class, gender, and race struggled in Mexico and the world.

Late-glacial and Post-glacial history of the Chalk escarpment near Brook, Kent

1964 ◽  
Vol 248 (745) ◽  
pp. 135-204 ◽  
Keyword(s):  
Bronze Age ◽  
Iron Age ◽  
Late Glacial ◽  
Climatic Conditions ◽  
Valley Floor ◽  
Glacial Period ◽  
Late Neolithic ◽  
Local Conditions ◽  
Arable Farming ◽  
History Of

This paper describes the morphology of a small piece of the Chalk escarpment near Brook in east Kent, and reconstructs its history since the end of the Last Glaciation. The escarpment contains a number of steep-sided valleys, or coombes, with which are associated deposits of chalk debris, filling their bottoms and extending as fans over the Gault Clay plain beyond. Here the fans overlie radiocarbon-dated marsh deposits of zone II (10 000 to 8800 B.C.) of the Late-glacial Period. The debris fans were formed and the coombes were cut very largely during the succeeding zone III (8800 to 8300 B.C.). The fans are the products of frost-shattering, probably transported by a combination of niveo-fluvial action and the release of spring waters; intercalated seams of loess also occur. The molluscs and plants preserved in the Late-glacial deposits give a fairly detailed picture of local conditions. The later history of one of the coombes, the Devil’s Kneadingtrough, is reconstructed. The springs have effected virtually no erosion and have probably always emerged more or less in their present position. In the floor of the coombe the periglacial chalk rubbles of zone III are covered by Postglacial deposits, mainly hillwashes. They are oxidized and yield no pollen, but contain rich faunas of land Mollusca, which are presented in the form of histograms revealing changing local ecological and climatic conditions. During most of the Post-glacial Period, from the end of zone III until about the beginning of zone VIII, very little accumulation took place on the coombe floor. But below the springs there are marsh deposits which span much of this interval. They yield faunas of considerable zoogeographical interest. The approximate beginning of zone VII a (Atlantic Period) is reflected by a calcareous tufa, which overlies a weathering horizon, and represents an increase in spring flow. Two clearance phases are deduced from the molluscan record. The first may have taken place at least as early as the Beaker Period (Late Neolithic/earliest Bronze Age); the second is probably of Iron Age ‘A’ date. In Iron Age times the subsoil was mobilized and a phase of rapid hillwashing began. As a result the valley floor became buried by humic chalk muds. The prime cause of this process was probably the beginning of intensive arable farming on the slopes above the coombe; a possible subsidiary factor may have been the Sub-Atlantic worsening of climate. The muds yield pottery ranging in date from Iron Age ‘Kentish first A’ ( ca . 500 to ca . 300 B.C.) to Romano-British ware of the first or second centuries A.D. Evidence is put forward for a possible climatic oscillation from dry to wet taking place at about the time of Christ. In the later stages of cultivation, possibly in the Roman Era, the valley floor was ploughed and given its present-day form.

Uno studio sulle presidenziali americane: l'economia conta?

2012 ◽  
pp. 41-55
Author(s):  
Marco Morini
Keyword(s):  
Statistical Analysis ◽  
Presidential Elections ◽  
Economic Indicators ◽  
Economic Data ◽  
The Real ◽  
Approval Rating ◽  
History Of ◽  
Electoral Behaviour

The economy matters. This is one of the dogmas taught us by those who have studied the history of the American presidential elections. But is this collective perception of the influence of economic data on individual electoral behaviour confirmed by statistical analysis of the history of presidential elections? This study shows that the most commonly used economic indicators are poor predictors of election outcomes, and also that variation in the approval rating of the incumbent president is a variable independent from the real economic data.

Features hormonal status in pregnant women with benign cervical pathology in anamnesis

2017 ◽  
pp. 71-73
Author(s):  
N.Yu. Bysaha ◽  
Keyword(s):  
Statistical Analysis ◽  
Pregnant Women ◽  
Placental Lactogen ◽  
Control Group ◽  
Hormonal Status ◽  
Hormonal Changes ◽  
Fetoplacental Complex ◽  
History Of ◽  
Objective Study ◽  
Stimulation Of

The objective: study of hormonal status in pregnant women with benign cervical pathology (CP) in anamnesis. Patients and methods. Clinical and statistical analysis of the hormonal status of 100 women with a history of benign CP pathology has been performed. According to the revealed symptoms of CP during colposcopic examination, women were divided into two groups: 100 pregnant women, in whom colposcopic and cytologically signs of CP pathology were not detected, were included in the control group; and 100 women who had a pathology of CP, entered the main group. Results. The study examined hormonal relationships in the system mother–placenta–fetus, namely the level of hormones such as estriol, progesterone, human chorionic gonadotropin, placental lactogen. Hormonal changes in pregnant women and contribute to reducing the immunoreactivity unwanted stimulation of existing benign hyperplastic background processes in the cervix. Conclusion. Determining functional state placenta is an important factor in the timely diagnosis of disorders in the functioning of the system mother–placenta–fetus. Key words: hormonal status, placenta, uterine cervix, fetoplacental complex.

scholarly journals Búsqueda de patrones para mejorar productos y servicios en las bibliotecas

2017 ◽  
Vol 31 (72) ◽  
pp. 209
Author(s):  
Esther Marina Ruiz Lobaina ◽  
Pedro Lázaro Romero Suárez
Keyword(s):  
Cluster Analysis ◽  
Statistical Analysis ◽  
Data Management ◽  
Graphical Representation ◽  
Bibliographic Database ◽  
Statistical Algorithms ◽  
Hidden Patterns ◽  
Selective Dissemination Of Information ◽  
Data Group ◽  
Bar Graphs

Este trabajo muestra los resultados alcanzados durante la búsqueda de patrones ocultos, aplicando algoritmos estadísticos, a una base de datos bibliográfica. Para esta investigación se seleccionó el software WinIDAMS v.1.3, que utiliza para el manejo de los datos la construcciónde un dataset IDAMS (BUILD) y la agrupación de datos (AGGREG), para el análisis estadístico los algoritmos Análisis de conglomerados (CLUSFIND) y los diagramas de dispersión (SCAT). Para las salidas de los resultados este software ofrece las tablas multidimensionales, capaces de crear por cada grupo de variables seleccionadas una tabla interna con resultados como la frecuencia y la media aritmética, que fueron las seleccionadas para estas pruebas, mientras que para la representación gráfica de los resultados se decidió utilizar los histogramas porque son gráficas de barras que permiten interpretar de forma muy fácil y rápida el comportamiento de las variables seleccionadas para el análisis. Este estudio encontró patrones a través de la clusterización con los cuales fue posible potenciar los servicios de difusión selectiva de la información y proponer nuevos servicios para que formen parte de los productos que brinda la biblioteca. This work shows the results obtained during the search for hidden patterns using statistical algorithms, in a bibliographic database. For this research the WinIDAMS v.1.3 software, used for data management, building an IDAMS dataset (BUILD) and Data Group (AGGREG) for statistical analysis algorithms, Cluster analysis was selected (CLUSFIND) and scatterplots (SCAT). In addition to the outputs of the results this software provides multidimensional tables, able to create for each group of selected variables, an internal table with results such as frequency and average arithmetic were selected for these tests, while for graphical representation of theresults, it was decided to use histograms, because they are bar graphs that allow us to interpret very easily and quickly, the behavior of the variables selected for analysis. This study found patterns through clustering, with which services could enhance Selective Dissemination of Information and propose new services, to become part of the products offered by the library.

scholarly journals How Bovine Livestock Affects Seed Rain in Subtropical Climate Forest

2019 ◽  
Vol 11 (10) ◽  
pp. 240
Author(s):  
Maureen de Moraes Stefanello ◽  
Ana Paula Moreira Rovedder ◽  
Roselene Marostega Felker ◽  
Matheus Degrandi Gazzola ◽  
Betina Camargo ◽  
...  
Keyword(s):  
Diversity Index ◽  
Morphological Characteristics ◽  
Floristic Composition ◽  
Seed Rain ◽  
Subtropical Climate ◽  
Floristic Similarity ◽  
Management Regime ◽  
Pampa Biome ◽  
Forest Remnants ◽  
History Of

Seed rainfall may be one of the mechanisms most impacted by livestock production in forest remnants. The trampling and cattle grazing alter dynamics, structure and floristic composition of the forest. The present work characterized the seed rainin forest remnants and the possible impacts of the presence and the management regime with different cattle stocks in the Pampa biome, southern region of Brazil. We compared three areas in Seasonal Forest remnants with a management history of 43 years: cattle exclusion area (A1); area with a cattle stock of 0.5 ua ha-1 (A2); and area with cattle stock of 1.0 ua ha-1 (A3). The seed rain was collected quarterly in 16 collectors (1 × 1 m²) per area for 24 months. The seeds were counted and identified according to external morphological characteristics, habit and dispersion syndrome. Shannon diversity index, submitted to the Hutcheson test, Pielou evenness, expected diversity and floristic similarity were determined. The results indicated that the impacts caused by livestock to seed rain were more significant in A3 where a quantitative reduction in the number of seeds was observed, probably due to the low number of plant individuals that make up the community.

scholarly journals Friederike Oberdieck. Beitrag zur Kenntniss des Alkoholimus und seiner rationellen Behandlung. —(Arch. f. Psych. Bd. 27. Heft. 2. pg. 579 — 632)

2020 ◽  
Vol V (4) ◽  
pp. 210
Author(s):  
G. Idelson
Keyword(s):  
Statistical Analysis ◽  
History Of

This work presents a statistical analysis of the history of the illness of alcoholics from the Burghlzli insane asylum during the period from 1879 to 1894 (367 mus. And 31 women). The known facts about the consequences of alcoholism are confirmed again in this work.

scholarly journals Differential Diagnosis between the Varieties of Vasculitis Forms

2018 ◽  
Vol 6 (2) ◽  
pp. 1-8
Author(s):  
Joana Hankollari ◽  
Marsida Duli ◽  
Qamil Dika ◽  
Xhenila Duli ◽  
Indrit Bimi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Differential Diagnosis ◽  
Blood Vessel ◽  
Specific Form ◽  
The Body ◽  
Imaging Studies ◽  
Patient Assessment ◽  
Diagnostic Difficulties ◽  
History Of ◽  
Specific Symptoms

Vasculitis is an inflammation of the blood vessels. It can affect any blood vessel in the body by manifesting a variety of systemic, non-specific symptoms that make difficult the diagnosis of this pathology and especially its specific form. In front of any patient suspected of being affected by vasculitis, some questions are asked: Is the vasculitis or other pathology that camouflages, whether it is primary or secondary vasculitis, in which vessels this pathology extends, how can the diagnosis be confirmed and how can it be determined the type of vasculitis?The purpose of this study is to inform about the protocols to be followed to perform differential diagnosis of vasculitis types.This study is a review based on the research of world studies and literature regarding the recommendations for performing differential diagnosis among the variety of vasculitis forms.Primary patient assessment involves taking the history of the medications it uses, risk factors for infectious pathology, history of cardiac valve pathologies, and autoimmune pathologies. Then laboratory and imaging studies are carried out, aiming at setting the diagnosis, determining the affected organ and the degree of disease activity. And recently we refer to algorithms to make differential diagnosis between the varieties of vasculitis forms.Despite the diagnostic difficulties of vasculitis, the variety of its forms, the separation of responsibilities among many specialities, there are protocols that need to be followed rigorously to arrive at a safe diagnosis as well as auxiliary algorithms to distinguish the type of vasculitis.

scholarly journals Impact Des Facteurs Intersubjectifs Sur L'engagement Des Cadres Ivoiriens Au Développement De Leur Localité d’Origine

2018 ◽  
Vol 14 (32) ◽  
pp. 237
Author(s):  
Daboné Inoussa ◽  
Méité Zoumana
Keyword(s):  
Statistical Analysis ◽  
Data Collection ◽  
Public Administration ◽  
Rural Areas ◽  
Present Survey ◽  
Urban Populations ◽  
Local Populations ◽  
Personal Commitment ◽  
Rural And Urban

Despite the policy of developing localities initiated by the Ivorian state, disparities between rural and urban populations are still obvious. The lack of interest in this process of development from localities’ native executives is highlighted. The present survey tempts to examine this lack of personal commitment from executives in relation with intersubjective factors such as sympathy, autonomy, mystical practices and communication. In so doing, a sample of 121 executives from the Ivorian public administration are selected rationally in the purpose of data collection through a questionnaire. Statistical analysis indicate that, except the autonomy to bring innovations in rural areas, the targeted intersubjective factors have a significant impact on the executives' level of commitment in their locality’s development. As regards to practical repercussions, these results underline the necessity to develop the local populations’ mind of sympathy and communication towards their executives. Local populations have also to put an end to any mystical practice able to frighten their native executives if they want them to fully take part in the development of their different localities.

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