Outplant Method for Phenological Studies of Chondrus crispus in Mechanically Harvested Beds

1978 ◽  
Vol 35 (3) ◽  
pp. 336-338 ◽  
Author(s):  
L. A. Hanic ◽  
J. D. Pringle
Keyword(s):  
Key Words ◽  
Field Conditions ◽  
Chondrus Crispus ◽  
Irish Moss ◽  
Long Term Studies

A method is described employing a primary pottery unit for seeding and growing Chondrus crispus Stackhouse and a secondary concrete platform for support and protection. The combined units facilitate long-term studies where frequent removal of plants for observation is required and where field conditions are adverse. Key words: Chondrus crispus, Irish moss, seeding, outplanting method

Planning a system of permanent sample plots for integrated long-term studies of community-based forest management

1970 ◽  
Vol 16 (2) ◽  
pp. 3-11 ◽  
Author(s):  
H Meilby ◽  
L Puri ◽  
M Christensen ◽  
S Rayamajhi
Keyword(s):  
Forest Management ◽  
Key Words ◽  
Research Note ◽  
Managed Forests ◽  
Community Based ◽  
Permanent Sample Plots ◽  
Long Term Studies

To monitor the development of four community-managed forests, networks of permanent sample plots were established in 2005 at sites in Chitwan, Kaski and Mustang Districts, Nepal. This research note documents the procedures used when preparing for establishment of the plot networks, evaluates the applied stratification of the forest on the basis of data gathered in pilot surveys conducted in the early 2005, and provides a discussion on the implications of the choices made. Key words: Community-managed forests; permanent sample plots; stratification; allocation; estimates Banko Janakari Vol.16(2) 2006 pp.3-11

A retrospective look at 80 years of silvicultural research at Petawawa

1999 ◽  
Vol 75 (3) ◽  
pp. 385-388
Author(s):  
Steve D'Eon
Keyword(s):  
Experimental Design ◽  
Key Words ◽  
Research Priorities ◽  
Factorial Designs ◽  
Forest Research ◽  
Permanent Sample Plots ◽  
Site Characteristics ◽  
Over Time ◽  
Long Term Studies

Canada's oldest forest research plot was laid out at Petawawa in 1918. Since then, hundreds of researchers have established plots, gathered data, and published results utilizing the Petawawa Research Forest. Many of the projects and plots were designed as long-term studies meant to endure and be re-measured over the decades. Although control plots were utilized, these early experiments were established prior to the benefits of repetition and experimental design. Later experiments were installed with three or more reps and factorial designs strengthening their analytical capabilities. Research priorities have shifted over time from documenting the results of a particular silvicultural treatment to understanding why silvicultural responses are obtained. Factors that influenced the continuance of some studies and the discarding of others are reviewed.Some studies achieved their original goals and have been continued for longer periods or utilized for additional goals. Characteristics such as tenure, experimental design, and site characteristics are described for several of these studies. Key words: long-term research, permanent sample plots, Petawawa

scholarly journals La video-filmación como técnica de estudio de mamíferos silvestres: un ejemplo de jaguares en el noreste de la Península de Yucatán.

2007 ◽  
Vol 11 (1) ◽  
pp. 47
Author(s):  
Juan Carlos Faller-Menéndez ◽  
Luis A. Lago-Torres ◽  
Alfonsina Hernández-Cardona ◽  
Mederic Calleja-Alvarado ◽  
Gerardo Ceballos González ◽  
...  
Keyword(s):  
South America ◽  
Key Words ◽  
Mating Behavior ◽  
Wide Spectrum ◽  
Video Camera ◽  
Panthera Onca ◽  
Unique Information ◽  
Palabras Clave ◽  
Long Term Studies

Resumen: En noviembre de 2006 se utilizó un prototipo de cámara de video, en la reserva privada El Zapotal, en la porción noreste de la Península de Yucatán, y obtuvimos la filmación de una pareja de jaguares en actitud de apareamiento. Esta filmación representa una de las primeras experiencias de su tipo, y ha proporcionado información única sobre comportamiento y fecha de apareamiento de jaguares libres, que es consistente con algunos resultados de investigaciones de amplio espectro y largo plazo sobre poblaciones de esta especie en Sudamérica. Palabras clave: Apareamiento, Panthera onca, videofilmación, Yucatán Abstract: In november 2006, using a prototype of video camera, we obtained the shooting of a pair of jaguars in mating attitude. This was done in the El Zapotal private reserve, in the northeastern portion of the Yucatan Peninsula, and represents one of the first experiences of its type, also providing unique information about the mating behavior and the date of occurrence. The latter is consistent with some results derived from wide spectrum, long term studies about jaguar populations in South America. Key words: Mating, Panthera onca, videoshooting, Yucatan

Implications of Long-Term Studies of Three Model Preschool Programs for Head Start

2008 ◽  
Author(s):  
Lawrence J. Schweinhart ◽  
Elena V. Malofeeva ◽  
Lawrence J. Schweinhart ◽  
Michelle M. Englund ◽  
Arthur J. Reynolds ◽  
...  
Keyword(s):  
Head Start ◽  
Preschool Programs ◽  
Long Term Studies

Primary varicose veins

Phlebologie ◽  
2010 ◽  
Vol 39 (03) ◽  
pp. 133-137
Author(s):  
H. Partsch
Keyword(s):  
Varicose Veins ◽  
Compression Therapy ◽  
Daily Practice ◽  
Clinical Severity ◽  
Compression Stockings ◽  
Primary Varicose Veins ◽  
The Cost ◽  
Convincing Data ◽  
Long Term Studies

SummaryBackground: Compression stockings are widely used in patients with varicose veins. Methods: Based on published literature three main points are discussed: 1. the rationale of compression therapy in primary varicose veins, 2. the prescription of compression stockings in daily practice, 3. studies required in the future. Results: The main objective of prescribing compression stockings for patients with varicose veins is to improve subjective leg complaints and to prevent swelling after sitting and standing. No convincing data are available concerning prevention of progression or of complications. In daily practice varicose veins are the most common indication to prescribe compression stockings. The compliance depends on the severity of the disorder and is rather poor in less severe stages. Long-term studies are needed to proof the cost-effectiveness of compression stockings concerning subjective symptoms and objective signs of varicose veins adjusted to their clinical severity. Conclusion: Compression stockings in primary varicose veins are able to improve leg complaints and to prevent swelling.

Diatoms and aquatic palynomorphs in the sediments of the Eurasian Arctic seas and their significance for paleooceanological investigations in the Arctic

2019 ◽  
pp. 246-251
Author(s):  
Yelena I. Polyakova ◽  
Yekaterina I. Novichkova ◽  
Tatiana S. Klyuvitkina ◽  
Elizaveta A. Agafonova ◽  
Irina M. Kryukova
Keyword(s):  
Bering Sea ◽  
Surface Sediments ◽  
Sea Water ◽  
The Arctic ◽  
Marginal Filter ◽  
Arctic Seas ◽  
Hydrological Parameters ◽  
The Arctic Ocean ◽  
Long Term Studies

Presented the results of long-term studies of diatoms and aquatic palynomorphs in surface sediments of the Arctic seas and the possibility of their use for the reconstructions of paleocirculation water masses, advection of Atlantic and Bering sea water into the Arctic ocean, changes in the river runoff to the seas, sedimentary processes in the marginal filter of the largest rivers, seasonal sea ice cover and other hydrological parameters.

Aspects of the Evolution of the Romanian Tourists’ Preferences Concerning the Domestic Tourist Destinations

2019 ◽  
Vol 10 (1) ◽  
pp. 21-28
Author(s):  
Aniela Bălăcescu ◽  
Radu Șerban Zaharia
Keyword(s):  
Logistic Model ◽  
Local Level ◽  
Medium Term ◽  
Tourist Destinations ◽  
Tourism Management ◽  
Production And Consumption ◽  
On Line ◽  
The One ◽  
Long Term Studies

Abstract Tourist services represent a category of services in which the inseparability of production and consumption, the inability to be storable, the immateriality, and last but not least non-durability, induces in tourism management a number of peculiarities and difficulties. Under these circumstances the development of medium-term strategies involves long-term studies regarding on the one hand the developments and characteristics of the demand, and on the other hand the tourist potential analysis at regional and local level. Although in the past 20 years there has been tremendous growth of on-line booking made by household users, the tour operators agencies as well as those with sales activity continue to offer the specific services for a large number of tourists, that number, in the case of domestic tourism, increased by 1.6 times in case of the tour operators and by 4.44 times in case of the agencies with sales activity. At the same time, there have been changes in the preferences of tourists regarding their holiday destinations in Romania. Started on these considerations, paper based on a logistic model, examines the evolution of the probabilities and scores corresponding to the way the Romanian tourists spend their holidays on the types of tourism agencies, actions and tourist areas in Romania.

Budapest airport air quality long-term studies by remote sensing with DOAS and FTIR with focus upon runway emissions

2007 ◽  
Author(s):  
Klaus Schäfer ◽  
Gregor Schürmann ◽  
Carsten Jahn ◽  
Candy Matuse ◽  
Herbert Hoffmann ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Air Quality ◽  
Long Term Studies

Modeling of unforced demand response programs

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hassan Jalili ◽  
Pierluigi Siano
Keyword(s):  
Demand Response ◽  
Load Shifting ◽  
Response Models ◽  
Temperature Changes ◽  
Proposed Model ◽  
Equipment Failures ◽  
Demand Response Programs ◽  
Simultaneous Implementation ◽  
Long Term Studies

Abstract Demand response programs are useful options in reducing electricity price, congestion relief, load shifting, peak clipping, valley filling and resource adequacy from the system operator’s viewpoint. For this purpose, many models of these programs have been developed. However, the availability of these resources has not been properly modeled in demand response models making them not practical for long-term studies such as in the resource adequacy problem where considering the providers’ responding uncertainties is necessary for long-term studies. In this paper, a model considering providers’ unavailability for unforced demand response programs has been developed. Temperature changes, equipment failures, simultaneous implementation of demand side management resources, popular TV programs and family visits are the main reasons that may affect the availability of the demand response providers to fulfill their commitments. The effectiveness of the proposed model has been demonstrated by numerical simulation.

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