Results 51 to 60 of about 6,248,327 (201)

Spatial Pattern of Pinus tabulaeformis Forest

Shuitu baochi yanjiu, 2010
A Pinus tabulaeformis forest which was established in Heilihe natural reserve with the area of 1.96 hm2 in Inner Mongolia was investigated by sampling methods.The objective of the study was to obtain a better understanding of the structure of Pinus ...
QI Kai, ZHANG Chun-yu, HOU Ji-hua, WU Lei, ZOU Lu, ZHAO Xiu-hai   +5 more
doaj  

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

FEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer, Pawel Rubach, Zbigniew Dauter, Wojciech Dec, Dariusz Brzezinski, Marta Kulik, Wladek Minor, Mariusz Jaskolski   +7 more
wiley   +1 more source

Simple models and the corresponding h- and g-index [PDF]

, 2006
The relation between the Hirsch index and Egghe’s g-index is determined for some simple models such as the uniform model, the point model, the linear model and Zipf’s ...
Rousseau, Ronald
core   +1 more source

Surface modification of 3D‐printed polycaprolactone scaffolds with silk fibroin for bone tissue engineering

FEBS Open Bio, EarlyView.
Coating 3D‐printed PCL scaffolds with silk fibroin can improve biocompatibility and bone cell adhesion. One innovative design for tissue‐engineering scaffolds uses 3D printing technology. Here, we used polycaprolactone (PCL) filament as a biocompatible material to design a porous 3D scaffold for bone tissue engineering.
Hamed Koeini, Esmaeil Biazar, Davood Zaeifi, Reza Zeinali, Saeed Heidari‐Keshel, Amimasoud Hassanour, Helia Saheli, Arezou Mehrabi   +7 more
wiley   +1 more source

Parameter Design and Optimization of Grass Aerial Seeding Tower Based Computational Fluid Dynamics

Applied Sciences
Unstable airflow driven by natural wind forces inside a grass aerial seeding tower is a technical problem that needs to be improved. The authors used FLUENT 2020 R2 to simulate a basic nozzle unit, which is the fundamental component of a grass aerial ...
Bingjie Wang, Yingzi Zhang
doaj   +1 more source

Sex‐Stratified Association of Regional Dopamine Transporter Binding With Disease Progression in Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To clarify the clinical relevance of dopamine transporter single‐photon emission computed tomography (DAT‐SPECT) abnormalities in amyotrophic lateral sclerosis (ALS), with a prespecified focus on sex‐stratified associations with disease progression and short‐term prognosis.
Tomoya Kawazoe, Keizo Sugaya, Kentaro Hayashi, Keiko Hino, Yasuhiro Nakata, Kota Bokuda, Toshio Shimizu, Kazushi Takahashi   +7 more
wiley   +1 more source

Spatial structural characteristics of forests dominated by Pinus tabulaeformis Carr.

PLoS ONE, 2018
The Chinese pine (Pinus tabulaeformis Carr.) is an ecologically and economically important evergreen coniferous tree which dominates warm temperate forests throughout northern China.
Lianjin Zhang, Gangying Hui, Yanbo Hu, Zhonghua Zhao   +3 more
doaj   +1 more source

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi, Sola Al Ghazal, Salem Hannoun, Medhat A. Siddik, Nour M. Najjar, Jim Dagher, Joseph Abboud, Myriam G. Semaan, Samia J. Khoury   +8 more
wiley   +1 more source

Summary of statistical tests of spatial tree structure, null hypothesis, interpretation and related ecological questions; CE = neighbourhood-based Clark-Evans index, W¯ = Uniform Angle index, R¯ = Mean Directional index, LU(r) = univariate L-function, and LB(r) = bivariate L-function.

, 2015
Summary of statistical tests of spatial tree structure, null hypothesis, interpretation and related ecological questions; CE = neighbourhood-based Clark-Evans index, W¯ = Uniform Angle index, R¯ = Mean Directional index, LU(r) = univariate L-function ...
Artemio Carrillo-Parra (817489), João Marcelo Brazão-Protázio (817488), Christian Wehenkel (616387), José Hugo Martínez-Guerrero (817490), Felipe Crecente-Campo (817491)   +4 more
core   +1 more source

Integrated PANoptosis Profiling Identifies Immunosuppressive Subtypes and a Prognostic Signature With Functional Validation of MLKL in Glioblastoma

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The prognosis of glioblastoma (GBM) remains highly unfavorable, largely due to high tumor heterogeneity and an immunosuppressive microenvironment. However, the functional role of PANoptosis in this context is poorly understood. Methods Patients were stratified via K‐means clustering. A risk score model was constructed using prognosis‐
Langfei Tian, Minghui Zhao, Yuanbo Hu, Kaiyue Wang, Haiguang Liu, Zetong Bai, Kebin Zheng   +6 more
wiley   +1 more source