scholarly journals III. Analyses of agricultural yield. Part I.—The spacing experiment with Egyptian cottom, 1912

1915 ◽  
Vol 206 (325-334) ◽  
pp. 103-180 ◽  
Keyword(s):  
Statistical Analysis ◽  
Environmental Conditions ◽  
Field Work ◽  
Senior Author ◽  
Agricultural Crops ◽  
Chief Factors ◽  
Full Analysis ◽  
Final Yield ◽  
Agricultural Yield

The aim of the investigations here entered upon is statistical analysis of the yield of agricultural crops in terms of the stages of the plant’s development. When the yield is a fruit, then precedent stages determining the yield must be the flower and, before this, the development of flowering branches. In such a case, for full analysis of the final yield, careful records of these stages must first be taken all through the development season of the crop. The senior author has elaborated, during experiments on cotton in Egypt, the procedure for carrying out such analysis and the points to be attended to. Armed with this method of analysis the effects of environmental conditions on the development of the crop can be satisfactorily distinguished. The chief factors of environment capable of control in field work are—the space allowed to each plant, the date of sowing, the supply of water, of manures, and the choice of the year in which the crop is grown.

Expertise of Surgeons Publishing Novel Techniques in the Journal of Wrist Surgery

2021 ◽  
Author(s):  
Lara L. Cohen ◽  
Dustin H. Massel ◽  
Joseph S. Geller ◽  
David L. Chen ◽  
Seth D. Dodds
Keyword(s):  
Statistical Analysis ◽  
Surgical Techniques ◽  
Senior Author ◽  
New Technique ◽  
Novel Technique ◽  
Research Outcomes ◽  
Surgeon Experience ◽  
Standardize Reporting ◽  
Statistical Results

Abstract Introduction Recent efforts to standardize reporting of surgeon experience in novel technique publications have recommended reporting of Tang level of expertise (LOE). Question/Purpose The aim of this study was to document trends in LOE reporting for novel technique articles published in the Journal of Wrist Surgery and evaluate whether author experience affects novel research outcomes. Methods A total of 261 articles published from 2018 to 2020 were reviewed. Articles describing novel surgical techniques were included and examined for Tang LOE. Author variables were collected online. Results Eight percent (21/261) of articles discussed novel surgical techniques and one reported LOE. Nearly half (47.6%) of articles did not conduct statistical analysis. Four (19.0%) reported insignificant statistical results and 7 (33.3%) reported significant findings. All significant statistical findings were positive. Number of prior related publications by the senior author did not affect new technique result significance (p = 0.34). Discussion From 2018 to 2020, only one article documented LOE. Authors' variables, including number of prior related publications, were not correlated with significant results in their new publications. This may suggest that an author's established experience in a novel technique, quantified by prior publications on the topic, does not make one more likely to achieve significantly better or worse outcomes in their reviewed Journal of Wrist Surgery study. Conclusions Tang LOE is an important way for readers to classify expertise and should be reported, and potentially modified to better define contributing variables.

Mapping and analysis of distribution patterns of lichens on rural medieval churches in north-eastern Germany

2001 ◽  
Vol 33 (3) ◽  
pp. 231-248 ◽  
Author(s):  
Bettina Weber ◽  
Burkhard Büdel
Keyword(s):  
Statistical Analysis ◽  
Environmental Conditions ◽  
Distribution Patterns ◽  
Lichen Species ◽  
Habitat Factors ◽  
Wide Range ◽  
North Eastern ◽  
Detailed Statistical Analysis ◽  
Stone Walls ◽  
Important Habitat

AbstractLichen communities were examined on 62 churches in Mecklenburg–Vorpommern, Germany. Ninety-six lichen species and subspecies, and three species of lichenicolous fungi identified. Tylothallia biformigera and Lecanora campestris subsp. dolomitica are reported as new Germany, and another 20 species are considered as threatened. This implies that the stone walls churches represent an extremely important habitat in Mecklenburg–Vorpommern, where natural outcrops are rare. The distribution of lichen species was analyzed quantitatively in relation to several habitat factors. Aspect, substratum and inclination were found to be important factors for 35, 34 31 species, respectively. The height of the relevé was a significant factor for many species. Twenty-three species, which are described in the literature with oceanic to suboceanic distributions, occur significantly more frequently near the coast. The ways in which microclimate affects each these habitat factors and contributes to the presence or absence of a species or group of species discussed. Some species have narrow and specific habitat demands, whereas others thrive under wide range of environmental conditions. The advantages of a strictly schematic approach with detailed statistical analysis are discussed.

scholarly journals 331 Late Planting Reduces Annual Artichoke Productivity

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 500B-500
Author(s):  
D.T. Drost ◽  
N. Philips ◽  
N. Thomsen
Keyword(s):  
Plant Growth ◽  
Leaf Area ◽  
Environmental Conditions ◽  
Bare Soil ◽  
Planting Date ◽  
Plastic Mulch ◽  
Cool Season ◽  
Late Planting ◽  
Final Yield ◽  
Black Plastic

Artichoke, a cool-season, frost-tolerant, but freeze-sensitive, crop, was investigated for annual production in Utah. The objectives were to assess the effects of alternative cropping methods on growth and productivity. Artichoke (`Imperial Star') was seeded in January or February and grown for 3 months before transplanting to the field. Plants were planted in bare soil, through plastic mulch or through plastic with floating rowcovers in April or May. Plant growth (leaf area), environmental conditions, and yield (number, weight, and quality) were monitored throughout the year. Planting date and mulching treatments had a significant effect on plant growth and productivity. Leaf area was greatest at all measurement dates as temperature adjacent to the plant increased (plastic with cover > plastic > bare soil). Early planting had greater yield than late planting regardless of mulching treatment. There was no difference in final yield between the plastic mulch and plastic plus cover at early plantings, although yields were higher than in bare soil. However, late planting through plastic with rowcovers significantly reduced bud yields compared to bare soil or black plastic only. While higher temperatures associated with plastic and rowcovers increased plant growth, increased temperatures under covers after the May planting date devernalized artichoke seedlings, which contributed to the lower yields late in the season.

scholarly journals Problems of use and conservation of soil of Lviv region

2013 ◽  
pp. 292-303
Author(s):  
S. Pozniak ◽  
V. Haskevich ◽  
M. Pshevlotsky ◽  
O. Teleguz
Keyword(s):  
Key Words ◽  
Environmental Conditions ◽  
Power Plants ◽  
Wind Erosion ◽  
The Other ◽  
Soil Protection ◽  
Agricultural Crops ◽  
Ecological State ◽  
Ecological Situation ◽  
Rational Use

The article analyzes the agro-ecological situation and problems of soil use in Lviv region. It is established that the conduct of agriculture is often not the landscape and environmental conditions of the area and agro-ecological conditions of cultivation of agricultural crops. In soils have become widespread degradation processes, such as water and wind erosion, acidification, dehumidification, the depletion of elements of the other power plants. The measures of rational use and protection of soils are proposed. Key words: Lviv region, soil, agro-ecological state of, degradation, soil protection.

scholarly journals Nullpest: a mobile application of agricultural pest locator using sonar sensor set-up

2018 ◽  
Vol 7 (3.29) ◽  
pp. 107
Author(s):  
Cortez Dan Michael A ◽  
Molina Charito M ◽  
Abante Marmelo V. ◽  
Santos Myra S
Keyword(s):  
Mobile Application ◽  
The Philippines ◽  
Agricultural Activities ◽  
Agricultural Crops ◽  
Agricultural Pest ◽  
Pesticide Monitoring ◽  
Sonar Sensor ◽  
Agricultural Yield ◽  
Set Up ◽  
Pesticide Usage

Philippines have already achieved its highest peak when it comes to substantive agricultural activities. The country has been one of the most leading distributors of agricultural crops most especially the rice commodity all throughout the world. With this, it can be concluded that agriculture is one important factor that affects the Philippines’ economy, thus, it must be given thorough attention and importance not only by the country’s government but also its constituents. There are inevitable factors that affects agricultural yield which results to rapid decrease of crop activities resulting to a devastating loss to the Philippine farmers, one of which is the existence of agricultural pest. These destructive pest gives fatal damage to agricultural crops by thriving its nutrients resulting to agricultural loss. Considering this, the aim of the study is to aid and help farmers locate such agricultural pest particularly on the rice commodity, give pesticide monitoring in order to limit pesticide usage that gives possible health risk to consumers, and lastly give pest information to its user particularly on farmers. With the combination of a Mobile Application and Arduino device all of this will become possible.   

scholarly journals Anatomo-morphological features of free-living and farmed pheasants

2017 ◽  
Vol 73 (6) ◽  
pp. 370-374 ◽  
Author(s):  
Sławomir Beeger ◽  
Mariusz Wójcik ◽  
Marian Flis ◽  
Marek Marecki ◽  
Robert Pyrkosz Roman Dziedzic
Keyword(s):  
Body Weight ◽  
Statistical Analysis ◽  
Gastrointestinal Tract ◽  
Analysis Of Variance ◽  
Environmental Conditions ◽  
Natural Habitat ◽  
The Other ◽  
Free Living ◽  
Whitney Test ◽  
Biometric Measurements

This study compared pheasant roosters living in a natural habitat (n = 10), where farm-bred birds had not been released for 7 years (hence the wild-living birds were assumed to have been determined exclusively by environmental conditions),. The other group (n = 10) comprised farmed pheasant roosters. In December 2010, the pheasants were hunted, and biometric measurements of some traits were performed. After dissection, the muscles, bones, organs, and gastrointestinal tract were weighed, and the length of the intestines was measured. It was shown that the farmed pheasants had a significantly higher body weight (1583 g and 1407 g), which was mainly related to the higher fat content (144 g and 30 g). The farmed roosters had shorter rectrices. The heart-to-body weight and liver-to-body weight ratios, i.e. 0.6 % and 1.9 % respectively, were the same in both groups. No differences were found between the groups in terms of the weight of the pectoral, limb, and wing muscles, but the farmed roosters had heavier leg and wing bones. The length of the intestines per 100 g body weight was 10.5 cm in the farmed roosters and 13.3 cm in the free-living birds. Statistical analysis of variance was performed, and the differences between the groups were verified with the Mann-Whitney test. The farmed pheasants were shown to differ only slightly from the free-living birds from the natural habitat; hence, they are suitable for reintroduction.

Nullpest: a mobile application of agricultural pest locator using sonar sensor set-up

2018 ◽  
Vol 7 (3.29) ◽  
pp. 107
Author(s):  
Cortez Dan Michael A ◽  
Molina Charito M ◽  
Abante Marmelo V. ◽  
Santos Myra S
Keyword(s):  
Mobile Application ◽  
The Philippines ◽  
Agricultural Activities ◽  
Agricultural Crops ◽  
Agricultural Pest ◽  
Pesticide Monitoring ◽  
Sonar Sensor ◽  
Agricultural Yield ◽  
Set Up ◽  
Pesticide Usage

Philippines have already achieved its highest peak when it comes to substantive agricultural activities. The country has been one of the most leading distributors of agricultural crops most especially the rice commodity all throughout the world. With this, it can be concluded that agriculture is one important factor that affects the Philippines’ economy, thus, it must be given thorough attention and importance not only by the country’s government but also its constituents. There are inevitable factors that affects agricultural yield which results to rapid decrease of crop activities resulting to a devastating loss to the Philippine farmers, one of which is the existence of agricultural pest. These destructive pest gives fatal damage to agricultural crops by thriving its nutrients resulting to agricultural loss. Considering this, the aim of the study is to aid and help farmers locate such agricultural pest particularly on the rice commodity, give pesticide monitoring in order to limit pesticide usage that gives possible health risk to consumers, and lastly give pest information to its user particularly on farmers. With the combination of a Mobile Application and Arduino device all of this will become possible.   

Rotating Ring Crack Growth Test

1965 ◽  
Vol 38 (4) ◽  
pp. 719-729 ◽  
Author(s):  
J. R. Beatty ◽  
A. E. Juve
Keyword(s):  
Statistical Analysis ◽  
Laboratory Test ◽  
Crack Growth ◽  
Environmental Conditions ◽  
Type Specimen ◽  
Specimen Preparation ◽  
The Road ◽  
Growth Initiation ◽  
Ring Crack ◽  
On The Road

Abstract Groove cracking of tires is a continuing problem. Cracking takes place in two steps; initiation and growth. Initiation is inevitable in service from ozone cracking, cuts and nicks. This indicates that a study of groove cracking should concern itself with cut growth. A laboratory test has been developed to evaluate crack growth in vulcanizates under a variety of environmental conditions. The apparatus is compact, vibration free, and utilizes a ring-type specimen. Flexing is accomplished by running the specimen around two pulleys like a belt. Specimen preparation is simple and reproducible and a reasonable number may be tested simultaneously. Each specimen weighs approximately twenty grams and fifteen individually initiated cracks are measured on each. The large number of cracks measured makes the data amenable to statistical analysis. Strains and frequency of flexure were chosen to approximate those encountered in the service of a tire tread. Results obtained have been found to predict reasonably performance of tires on the road.

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