Results 11 to 20 of about 155,131 (262)

Environmental Factors Associated With Nitrogen Fixation Prediction in Soybean

Frontiers in Plant Science, 2021
Biological nitrogen (N)-fixation is the most important source of N for soybean [Glycine max (L.) Merr.], with considerable implications for sustainable intensification.
André Froes de Borja Reis, Luiz Moro Rosso, Larry C. Purcell, Seth Naeve, Shaun N. Casteel, Péter Kovács, Sotirios Archontoulis, Dan Davidson, Ignacio A. Ciampitti   +8 more
doaj   +1 more source

RIDGE MAPPING

Implant Dentistry, 1994
An important aspect of surgical diagnosis before implant placement is measurement of the width of the alveolar ridge. Besides the use of radiographic methods, alveolar crest width can be measured by ridge mapping. A ridge mapping technique using a specially designed caliper (Ultimapper) is presented.
C M, ten Bruggenkate, T B, de Rijcke, H A, Kraaijenhagen, H S, Oosterbeek   +3 more
openaire   +3 more sources

A Comparison of Model-Assisted Estimators, With and Without Data-Driven Transformations of Auxiliary Variables, With Application to Forest Inventory

Frontiers in Forests and Global Change, 2021
Forest information is requested at many levels and for many purposes. Sampling-based national forest inventories (NFIs) can provide reliable estimates on national and regional levels.
Magnus Ekström, Magnus Ekström, Mats Nilsson   +2 more
doaj   +1 more source

Local-Scale Cereal Yield Forecasting in Italy: Lessons from Different Statistical Models and Spatial Aggregations

Agronomy, 2020
Statistical, data-driven methods are considered good alternatives to process-based models for the sub-national monitoring of cereal crop yields, since they can flexibly handle large datasets and can be calibrated simultaneously to different areas.
David García-León, Raúl López-Lozano, Andrea Toreti, Matteo Zampieri   +3 more
doaj   +1 more source

Power Plant Energy Predictions Based on Thermal Factors Using Ridge and Support Vector Regressor Algorithms

Energies, 2021
This work aims to model the combined cycle power plant (CCPP) using different algorithms. The algorithms used are Ridge, Linear regressor (LR), and upport vector regressor (SVR).
Asif Afzal, Saad Alshahrani, Abdulrahman Alrobaian, Abdulrajak Buradi, Sher Afghan Khan   +4 more
doaj   +1 more source

Spatio-temporal development of cuticular ridges on leaf surfaces of Hevea brasiliensis alters insect attachment [PDF]

Royal Society Open Science, 2020
Cuticular ridges on plant surfaces can control insect adhesion and wetting behaviour and might also offer stability to underlying cells during growth. The growth of the plant cuticle and its underlying cells possibly results in changes in the morphology ...
Venkata A. Surapaneni, Georg Bold, Thomas Speck, Marc Thielen   +3 more
doaj   +1 more source

AgeGuess, a Methylomic Prediction Model for Human Ages

Frontiers in Bioengineering and Biotechnology, 2020
Aging was a biological process under regulations from both inherited genetic factors and various molecular modifications within cells during the lifespan.
Xiaoqian Gao, Shuai Liu, Haoqiu Song, Haoqiu Song, Xin Feng, Meiyu Duan, Lan Huang, Fengfeng Zhou   +7 more
doaj   +1 more source

Genetic Nature of Fertility Type in Cotton Hybrids [PDF]

BIO Web of Conferences
Studies have been conducted to evaluate the genetic potential of cotton species and to develop disease and pest resistant cotton varieties from them. The significance of the level of leaf hairiness in the representatives of the Gossypium L.
Khalikova Malokhat, Matyakubova Elmira, Uzokov Turgun, Soriyeva Sayyora   +3 more
doaj   +1 more source

The use of the model for determining potato (Solanum tuberosum L.) tuber distribution in the soil

Acta Agriculturae Slovenica, 2017
The paper focuses on the testing of a model for determining the distribution of potato tubers in the soil. Analytical testing of the model was performed at the laboratory of the Biotechnological Faculty (University in Ljubljana) in 2015 and in the same ...
Jošt Potrpin, Uroš Benec, Rajko Bernik, Bojan Gospodarič   +3 more
doaj   +1 more source

Adding bias to reduce variance in psychological results: A tutorial on penalized regression [PDF]

Tutorials in Quantitative Methods for Psychology, 2017
Regression models are commonly used in psychological research. In most studies, regression coefficients are estimated via maximum likelihood (ML) estimation.
Helwig, Nathaniel E.
doaj   +1 more source