نتایج جستجو برای: GPP

تعداد نتایج: 1505  

ژورنال: مرتع 2023
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Gross primary productivity is one of the most important factors in the carbon cycle of terrestrial ecosystems. With global warming increase, the frequent drought events and the specific response of regional vegetation to these changes, it is essential to identify and quantify the relationships between climatic and GPP data in arid region. In this study, the responses of gross primary productivi...

Journal: :journal of pharmaceutical care 0
somayeh hanafi pharmaceutical care department, dr.shariati hospital, tehran university of medical sciences, tehran, iran farshad poormalek epidemiology and biostatistics department, faculty of health, tehran university of medical sciences, tehran, iran hassan torkamandi pharmaceutical care department, dr.shariati hospital, tehran university of medical sciences, tehran, iran mirhamed hajimiri 13 aban drug and poison information center, tehran university of medical sciences, tehran, iran meysam esmaeili 13 aban drug and poison information center, tehran university of medical sciences, tehran, iran seyedhamid khooie clinical pharmacy department, faculty of pharmacy and pharmaceutical sciences, tehran university of medical sciences, tehran, iran

background: the principles of pharmaceutical care are embedded in the concept of good pharmacy practice (gpp). gpp is poorly applied in community pharmacies not only in asian countries, but even in united states and europe. the present study was undertaken to evaluate the knowledge, attitude and practice of the community pharmacists in iran, regarding gpp. methods: a total of 794 pharmacists we...

D. Eamus H. Shi J. Beringer J. Cleverly L. Cheng L. He Q. Yu, R. Whitley W. Zhuang Y. Wang

Energy and water availability were identified as the first order controls of evapotranspiration(ET) in ecohyrodrology. With a ~1,000 km precipitation gradient and distinct wet-dry climate,the North Australian Tropical Transect (NATT) was well suited for evaluating how energy andwater availabilities constrain water use by vegetation, but has not been done yet. In this study,we addressed this que...

2010
Kasturi Devi Kanniah Jason Beringer Lindsay Hutley

Gross primary productivity (GPP) is a critical flux determining the quantity of carbon entering an ecosystem. Thus, studying GPP at larger spatial and longer time scales is necessary to identifying locations of potential sinks or sources of carbon. This study employs remote sensing techniques to estimate savanna GPP in the Northern Territory (NT), Australia using MODIS (Moderate Resolution Imag...

2009
Yangjian Zhang Ming Xu Hua Chen Jonathan Adams

Aim To examine the global pattern of the net primary production (NPP)/gross primary production (GPP) ratio of the Earth’s land area along geographical and climatic gradients. Location The global planetary ecosystem. Methods The 4-year average annual NPP/GPP ratio of the Earth’s land area was calculated using 2000–03 Moderate Resolution Imaging Spectroradiometer (MODIS) data. The global pattern ...

Journal: :Remote Sensing 2015
Zhengjia Liu Quanqin Shao Jiyuan Liu

The aims are to validate and assess the performances of MODIS gross primary production (MODIS-GPP) and evapotranspiration (MODIS-ET) products in China’s different land cover types and their sensitivity to remote sensing input data. In this study, MODIS-GPP and -ET are evaluated using flux derived/measured data from eight sites of ChinaFLUX. Results show that MODIS-GPP generally underestimates G...

Journal: :Remote Sensing 2017
Tianxiang Cui Rui Sun Chen Qiao Qiang Zhang Tao Yu Gang Liu Zhigang Liu

Accurately quantifying gross primary production (GPP) is of vital importance to understanding the global carbon cycle. Light-use efficiency (LUE) models and process-based models have been widely used to estimate GPP at different spatial and temporal scales. However, large uncertainties remain in quantifying GPP, especially for croplands. Recently, remote measurements of solar-induced chlorophyl...

Journal: :JAAD case reports 2015
Yee-Leng Teoh Yong-Kwang Tay

GPP: generalized pustular psoriasis IL-36RN: interleukin-36 receptor antagonist PV: psoriasis vulgaris INTRODUCTION Generalized pustular psoriasis (GPP) is a rare but serious inflammatory skin disease that may be caused by deficiency of interleukin-36 receptor antagonist in which there is presence of homozygous or compound heterozygous mutations of the IL-36RN gene. Most GPP cases are sporadic,...

2018
Li Zhang Bruce K. Wylie Thomas Loveland Eugene A. Fosnight Larry L. Tieszen Lei Ji Bruce Wylie Eugene Fosnight Tagir Gilmanov

Two spatially-explicit estimates of gross primary production (GPP) are available for the Northern Great Plains. An empirical piecewise regression (PWR) GPP model was developed from flux tower measurements to map carbon flux across the region. The Moderate Resolution Imaging Spectrometer (MODIS) GPP model is a process-based model that uses flux tower data to calibrate its parameters. Verificatio...

Journal: :Journal of environmental management 2013
Qinghua Zhu Yong Geng Joseph Sarkis

Green public procurement (GPP) practices have been recognized as an effective policy tool for sustainable production and consumption. However, GPP practices adoption, especially in developing countries, is still an issue. Seeking to help understand these adoption issues, we develop a conceptual model which hypothesizes moderation effects of GPP knowledge on the relationships between GPP drivers...

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