scholarly journals Evaluation of information transfer between Extension Agents and dairy producers in Pennsylvania

2008 ◽  
Author(s):  
Carrie B. Nelson
Keyword(s):  
Information Transfer ◽  
Extension Agents

An evaluation of uptake and developmental impact in the semi-arid tropics of four crop production models

2000 ◽  
Vol 134 (2) ◽  
pp. 173-180
Author(s):  
E. KEBREAB ◽  
J. FRANCE ◽  
R. H. ELLIS ◽  
C. GARFORTH
Keyword(s):  
Information Transfer ◽  
Crop Production ◽  
Extension Agents ◽  
Water Harvesting ◽  
Structured Interviews ◽  
Crop Models ◽  
Production Models ◽  
Run Off ◽  
Production Modelling ◽  
Semi Arid

In the last two decades, crop production models have been developed or modified for use in the semi-arid tropics. Although potential uses of crop models have been discussed in detail in the literature, examples of successful uptake and impact of those models is lacking. Four models developed specifically for the semi-arid tropics were used as a basis for evaluating uptake and impact of models in the semi-arid tropics. PARCH accounts for differences in water availability when predicting yield. PARCHED-THIRST covers water-harvesting, run-off and run-on. EMERGE identifies opportunities for successful crop establishment, and SWEAT calculates evapo-transpiration and estimates temperature and moisture throughout the soil profile. The models are dynamic, deterministic and mechanistic in nature. The equations and notations comprising them are generally well structured, meaningful and concise. The uptake and impact of these models on crop production in the semi-arid tropics was assessed using questionnaires and semi-structured interviews with the model developers. There was limited uptake. Low uptake resulted from lack of efficient dissemination and discontinuity in information transfer: from model developers to scientists in the national research institutions; and thereon to extension agents and so to farmers. Although this paper is based on a study of only four models, there are important lessons to be drawn in order to avoid similar mistakes being repeated. Guidelines for improving impact for future crop production modelling projects are proposed.

scholarly journals Membangun Kesalingpercayaan dalam Proses Transfer Informasi antara Petani dan Penyuluh Pertanian

2019 ◽  
Vol 36 (2) ◽  
pp. 143
Author(s):  
Kadhung Prayoga ◽  
Suryani Nurfadillah ◽  
Ichma Butar Butar ◽  
Manna Saragih
Keyword(s):  
Interpersonal Communication ◽  
Information Exchange ◽  
Information Transfer ◽  
Innovation Adoption ◽  
Agricultural Extension ◽  
Extension Agents ◽  
Business Sector ◽  
Mutual Trust ◽  
Communication Climate ◽  
The Media

<p>Information transfer process in agricultural extension requires strong trust between extension workers and farmers. Agricultural extension workers who are outsiders will deal with challenges in order to entering a farmers’ community familiar with the values and norms they adhere to. If there is no trust between farmers and extension workers, there will be no information exchange, nor any innovation adoption. This paper reviews low mutual trust between farmers and extension workers. To increase trust between farmers and extension workers, it is necessary to improve competence of communicators, to create conducive communication climate, to involve informal actors, and to carry out interpersonal communication. Extension workers must be able act as farmers and so do farmers. Mutual respect process and opportunities provision may improve trust between them. In the future, it is necessary to involve business sector, academics, and the media to improve the competence of extension agents for o improving their credibility.</p><p> </p><p>Abstrak</p><p>Proses transfer informasi dalam penyuluhan pertanian mensyaratkan adanya kepercayaan yang kuat antara penyuluh dan petani. Penyuluh pertanian yang notabene sebagai orang luar akan banyak mendapatkan tantangan ketika masuk ke dalam suatu masyarakat tani yang sudah terbiasa dengan nilai dan norma yang dianutnya. Tidak ada kepercayaan antara petani terhadap penyuluh menyebabkan   tidak  terjadi proses pertukaran informasi dan  tidak akan terjadi proses  adopsi inovasi. Tulisan ini merupakan review yang menggunakan data sekunder dari laporan maupun hasil studi untuk mengungkap rendahnya salingpercaya antara petani dan penyuluh. Untuk meningkatkan salingpercaya antara petani dan penyuluh adalah dengan cara meningkatkan kompetensi komunikator, menciptakan iklim komunikasi yang kondusif, melibatkan aktor-aktor informal, dan melakukan komunikasi interpersonal. Perlu adanya kondisi dimana penyuluh bisa memposisikan diri sebagai petani dan sebaliknya. Proses saling menghargai dan memberikan kesempatan inilah yang kemudian bisa memupuk lahirnya kepercayaan di antara keduanya. Ke depan perlu juga campur tangan sektor bisnis, akademisi, dan media untuk meningkatkan kompetensi penyuluh sehingga kredibilitas mereka juga bertambah.</p>

Determination of the Best Emulsion for the Microscopy of Crystals

1981 ◽  
Vol 39 ◽  
pp. 32-33
Author(s):  
David A. Grano ◽  
Kenneth H. Downing
Keyword(s):  
Spatial Frequency ◽  
Information Transfer ◽  
Signal To Noise Ratio ◽  
Experimental Situation ◽  
Photographic Emulsion ◽  
Modulation Transfer ◽  
Signal To Noise ◽  
Frequency Space ◽  
Noise Ratio

The retrieval of high-resolution information from images of biological crystals depends, in part, on the use of the correct photographic emulsion. We have been investigating the information transfer properties of twelve emulsions with a view toward 1) characterizing the emulsions by a few, measurable quantities, and 2) identifying the “best” emulsion of those we have studied for use in any given experimental situation. Because our interests lie in the examination of crystalline specimens, we've chosen to evaluate an emulsion's signal-to-noise ratio (SNR) as a function of spatial frequency and use this as our critereon for determining the best emulsion.The signal-to-noise ratio in frequency space depends on several factors. First, the signal depends on the speed of the emulsion and its modulation transfer function (MTF). By procedures outlined in, MTF's have been found for all the emulsions tested and can be fit by an analytic expression 1/(1+(S/S0)2). Figure 1 shows the experimental data and fitted curve for an emulsion with a better than average MTF. A single parameter, the spatial frequency at which the transfer falls to 50% (S0), characterizes this curve.

Ultimate resolution and information in electron microscopy

1991 ◽  
Vol 49 ◽  
pp. 496-497
Author(s):  
D. Van Dyck
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Transfer Function ◽  
Information Transfer ◽  
Communication Channel ◽  
Structural Information ◽  
Information Rate ◽  
Noise Power ◽  
Signal Power ◽  
Imaging Device

An (electron) microscope can be considered as a communication channel that transfers structural information between an object and an observer. In electron microscopy this information is carried by electrons. According to the theory of Shannon the maximal information rate (or capacity) of a communication channel is given by C = B log2 (1 + S/N) bits/sec., where B is the band width, and S and N the average signal power, respectively noise power at the output. We will now apply to study the information transfer in an electron microscope. For simplicity we will assume the object and the image to be onedimensional (the results can straightforwardly be generalized). An imaging device can be characterized by its transfer function, which describes the magnitude with which a spatial frequency g is transferred through the device, n is the noise. Usually, the resolution of the instrument ᑭ is defined from the cut-off 1/ᑭ beyond which no spadal information is transferred.

What Is Left Is Right

2009 ◽  
Vol 14 (1) ◽  
pp. 78-89 ◽  
Author(s):  
Kenneth Hugdahl ◽  
René Westerhausen
Keyword(s):  
Speech Processing ◽  
Information Transfer ◽  
Hemispheric Asymmetry ◽  
Functional Neuroimaging ◽  
Gray Matter Volume ◽  
Functional Anatomy ◽  
Posterior Part ◽  
Functional Asymmetry ◽  
Planum Temporale ◽  
Evolution Of Speech

The present paper is based on a talk on hemispheric asymmetry given by Kenneth Hugdahl at the Xth European Congress of Psychology, Praha July 2007. Here, we propose that hemispheric asymmetry evolved because of a left hemisphere speech processing specialization. The evolution of speech and the need for air-based communication necessitated division of labor between the hemispheres in order to avoid having duplicate copies in both hemispheres that would increase processing redundancy. It is argued that the neuronal basis of this labor division is the structural asymmetry observed in the peri-Sylvian region in the posterior part of the temporal lobe, with a left larger than right planum temporale area. This is the only example where a structural, or anatomical, asymmetry matches a corresponding functional asymmetry. The increase in gray matter volume in the left planum temporale area corresponds to a functional asymmetry of speech processing, as indexed from both behavioral, dichotic listening, and functional neuroimaging studies. The functional anatomy of the corpus callosum also supports such a view, with regional specificity of information transfer between the hemispheres.

A distributed cognition approach to understanding information transfer in mission critical domains

2006 ◽  
Author(s):  
Ayse P. Gurses ◽  
Yan Xiao ◽  
Paul Gorman ◽  
Brian Hazlehurst ◽  
Grant Bochicchio ◽  
...  
Keyword(s):  
Distributed Cognition ◽  
Information Transfer ◽  
Mission Critical

Bok Choy, an Asian Leafy Green Vegetable Emerging in Florida

EDIS ◽  
2019 ◽  
Vol 2019 (6) ◽  
pp. 5
Author(s):  
Hai Liu ◽  
Guodong Liu
Keyword(s):  
Graduate Students ◽  
Crop Production ◽  
Health Benefits ◽  
Extension Agents ◽  
Vegetable Crops ◽  
Green Vegetable ◽  
General Overview

Asian vegetable crops are rapidly expanding in Florida in the last decade due to their health benefits combined with their high profitability. These crops can help increase vegetable growers’ income and diversify Florida’s crop production, and they are new to most Floridians. This new 5-page article provides a general overview of bok choy for vegetable growers, crop consultants, certified crop advisors, Extension agents, and graduate students. Written by Hai Liu and Guodong Liu and published by the UF/IFAS Horticultural Sciences Department.https://edis.ifas.ufl.edu/hs1337

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