The Low Volume Technique of Spraying Fungicides for the Control of Potato Blight (Phytophthora Infestans)

1965 ◽  
Vol 69 (660) ◽  
pp. 855-861
Author(s):  
E. Evans ◽  
J. W. H. Taylor ◽  
R. Runham ◽  
B. J. Couzens
Keyword(s):  
Phytophthora Infestans ◽  
Aqueous Medium ◽  
Mass Distribution ◽  
Potato Crop ◽  
High Volume ◽  
Similar Rate ◽  
Potato Blight ◽  
History Of ◽  
Low Volume

The history of the application of fungicides is one which shows a tendency to use ever decreasing quantities of spray liquid to the acre; the reason for this is obviously one of economics. The classification of various spray techniques is discussed with particular reference to the term ultra low volume. This may be defined briefly as the spraying of such extremely small volumes of liquid to the acre that it becomes impossible to use a simple aqueous medium as carrier. The reasons for this are given and the advantages of using special formulating agents noted.The success of the low volume technique of spraying potatoes for the control of blight is illustrated with a series of blight progress curves, showing that 5 lb of copper oxy-chloride applied at 50 gpa gives identical results to a similar rate of copper at 2 gpa. Copper estimations made on leaf samples from the top, middle and bottom leaves of a potato crop sprayed at 100 gpa and 5 gpa respectively show that the mass distribution of copper is much more uniform in the high volume plots than in the low volume plots. However, the largest quantities of copper are found in the top layers of the plots sprayed at low volume.

scholarly journals DETECTION AND CLASSIFICATION OF CHANGES IN EVOLVING DATA STREAMS

2006 ◽  
Vol 05 (04) ◽  
pp. 659-670 ◽  
Author(s):  
MOHAMED MEDHAT GABER ◽  
PHILIP S. YU
Keyword(s):  
Data Streams ◽  
Data Stream ◽  
Weather Conditions ◽  
High Volume ◽  
Streaming Data ◽  
Wide Range ◽  
Change Characteristics ◽  
History Of ◽  
Scientific Phenomena

Data stream mining has attracted considerable attention over the past few years owing to the significance of its applications. Streaming data is often evolving over time. Capturing changes could be used for detecting an event or a phenomenon in various applications. Weather conditions, economical changes, astronomical, and scientific phenomena are among a wide range of applications. Because of the high volume and speed of data streams, it is computationally hard to capture these changes from raw data in real-time. In this paper, we propose a novel algorithm that we term as STREAM-DETECT to capture these changes in data stream distribution and/or domain using clustering result deviation. STREAM-DETECT is followed by a process of offline classification CHANGE-CLASS. This classification is concerned with the association of the history of change characteristics with the observed event or phenomenon. Experimental results show the efficiency of the proposed framework in both detecting the changes and classification accuracy.

scholarly journals Thirty years of the PROINPA Foundation's contribution to Bolivian agriculture: Case of “Marcela” potato crop

2020 ◽  
Vol 23 (2) ◽  
pp. 66-73
Author(s):  
J. Gabriel
Keyword(s):  
Climate Change ◽  
Phytophthora Infestans ◽  
Drought Resistance ◽  
Potato Crop ◽  
Potato Production ◽  
Alternative Strategy ◽  
Late Potato ◽  
Potato Blight

With the objetive of recognizing Bolivian researchers, who are not always mentioned, we have written this simple but significant document, in which the case of potato cultivation “Marcela”, which is being widely used in the valleys from Tarija and Potosí heights mainly, due to its tolerance to drought, resistance to late potato blight (Phytophthora infestans) and precocity, with yields ranging from 15 to 20 t ha-1. This cultivar was assumed by INIAF as an alternative strategy to deal with reducing the effects of climate change on potato production.

Split dosing with a low-volume preparation is not inferior to split dosing with a high-volume preparation for bowel cleansing in patients with a history of colorectal resection: a randomized trial

Endoscopy ◽  
2015 ◽  
Vol 47 (10) ◽  
pp. 917-924 ◽  
Author(s):  
Alessandro Mussetto ◽  
Leonardo Frazzoni ◽  
Silvia Paggi ◽  
Silvia Dari ◽  
Liboria Laterza ◽  
...  
Keyword(s):  
Randomized Trial ◽  
Colorectal Resection ◽  
High Volume ◽  
Bowel Cleansing ◽  
History Of ◽  
Low Volume ◽  
Split Dosing

To Understand the Informal (on the Book BY V. L. Tambovtsev “Economics of Informal Institutions”)

2015 ◽  
pp. 151-158
Author(s):  
A. Zaostrovtsev
Keyword(s):  
Social Psychology ◽  
Detailed Analysis ◽  
Human Behavior ◽  
Interdisciplinary Approach ◽  
Informal Institutions ◽  
Economic Thought ◽  
History Of ◽  
Original Classification

The review considers the first attempt in the history of Russian economic thought to give a detailed analysis of informal institutions (IF). It recognizes that in general it was successful: the reader gets acquainted with the original classification of institutions (including informal ones) and their genesis. According to the reviewer the best achievement of the author is his interdisciplinary approach to the study of problems and, moreover, his bias on the achievements of social psychology because the model of human behavior in the economic mainstream is rather primitive. The book makes evident that namely this model limits the ability of economists to analyze IF. The reviewer also shares the author’s position that in the analysis of the IF genesis the economists should highlight the uncertainty and reject economic determinism. Further discussion of IF is hardly possible without referring to this book.

Assessment criteria for aggregate social welfare

2020 ◽  
Vol 19 (12) ◽  
pp. 2358-2371
Author(s):  
S.A. Moskal'onov
Keyword(s):  
Social Welfare ◽  
Mathematical Analysis ◽  
Exchange Economy ◽  
Assessment Criteria ◽  
Impossibility Theorem ◽  
New Approaches ◽  
History Of Development ◽  
Arrow's Impossibility Theorem ◽  
History Of

Subject. The article addresses the history of development and provides the criticism of existing criteria for aggregate social welfare (on the simple exchange economy (the Edgeworth box) case). Objectives. The purpose is to develop a unique classification of criteria to assess the aggregate social welfare. Methods. The study draws on methods of logical and mathematical analysis. Results. The paper considers strong, strict and weak versions of the Pareto, Kaldor, Hicks, Scitovsky, and Samuelson criteria, introduces the notion of equivalence and constructs orderings by Pareto, Kaldor, Hicks, Scitovsky, and Samuelson. The Pareto and Samuelson's criteria are transitive, however, not complete. The Kaldor, Hicks, Scitovsky citeria are not transitive in the general case. Conclusions. The lack of an ideal social welfare criterion is the consequence of the Arrow’s Impossibility Theorem, and of the group of impossibility theorems in economics. It is necessary to develop new approaches to the assessment of aggregate welfare.

COLLECTING THE PERSONAL ORIGIN DOCUMENTS OF THE GREAT PATRIOTIC WAR PERIOD

2020 ◽  
pp. 97-114
Author(s):  
Elena M. Burova ◽  
Keyword(s):  
Research Literature ◽  
Home Front ◽  
Organization Of Work ◽  
Great Patriotic War ◽  
History Of ◽  
Ordinary Citizens

The article covers the issues of initiative acquisition of archives in the documents of personal origin during the Great Patriotic War, the organization of work to identify and collect the wartime documents. Collecting documents of ordinary citizens, in particular letters from the front and to the front is analyzed. Proposals to create the specialized archives of documents on the history of the war were never implemented. Quite a lot of the actions, search operations and expeditions were conducted in the country, for example, the “Chronicle of the Great Patriotic War”, the “Frontline letter”, the “Search”, the “Memory”, etc., during which a significant number of documents of war participants and home front workers were collected and stored. Not so much of the documents of personal origin of the war participants are concentrated in the archives. In general, there prevails the collection type of organization for storing documents from the period of the Great Patriotic War. With reference to the corpus of documents of personal origin of the war period the research literature pays its attention mostly to correspondence and diaries, memoirs. Historians and archivists, analyzing wartime letters, offer different classifications depending on the authors, recipients, subjects, etc. The article provides a generalized classification of letters based on their inherent similarities. The author also analyzes the reasons for a small number of extant diaries and memoirs, and provides examples of their classification. Likewise the article describes current approaches to the collection of personal papers within the frames of the Moscow Glavarkhiv project “Moscow – with care for history” and the Ministry of Defense project “The Memory Road”.

(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).

СОЦИАЛЬНАЯ КОНФЛИКТОЛОГИЯ: ТЕОРЕТИКО-ИСТОРИЧЕСКИЙ АСПЕКТ

2020 ◽  
Vol 15 (2) ◽  
pp. 68
Author(s):  
А. Н. Сухов
Keyword(s):  
Theory And Practice ◽  
Important Task ◽  
Social Conflicts ◽  
Psychological Approach ◽  
Structure Dynamics ◽  
History Of ◽  
The Subject ◽  
First Time

This given article reveals the topicality not only of destructive, but also of constructive, as well as hybrid conflicts. Practically it has been done for the first time. It also describes the history of the formation of both foreign and domestic social conflictology. At the same time, the chronology of the development of the latter is restored and presented objectively, in full, taking into account the contribution of those researchers who actually stood at its origins. The article deals with the essence of the socio-psychological approach to understanding conflicts. The subject of social conflictology includes the regularities of their occurrence and manifestation at various levels, spheres and conditions, including normal, complicated and extreme ones. Social conflictology includes the theory and practice of diagnosing, resolving, and resolving social conflicts. It analyzes the difficulties that occur in defining the concept, structure, dynamics, and classification of social conflicts. Therefore, it is no accident that the most important task is to create a full-fledged theory of social conflicts. Without this, it is impossible to talk about effective settlement and resolution of social conflicts. Social conflictology is an integral part of conflictology. There is still a lot of work to be done, both in theory and in application, for its complete design. At present, there is an urgent need to develop conflict-related competence not only of professionals, but also for various groups of the population.

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