scholarly journals Supplementary material to "On the zero-level offset in the GOSAT TANSO-FTS O<sub>2</sub> A-band and the quality of solar-induced chlorophyll fluorescence (SIF): Comparison of SIF between GOSAT and OCO-2"

2019 ◽  
Author(s):  
Haruki Oshio ◽  
Yukio Yoshida ◽  
Tsuneo Matsunaga
Keyword(s):  
Chlorophyll Fluorescence ◽  
Zero Level ◽  
Supplementary Material

scholarly journals On the zero-level offset in the GOSAT TANSO-FTS O<sub>2</sub> A band and the quality of solar-induced chlorophyll fluorescence (SIF): comparison of SIF between GOSAT and OCO-2

2019 ◽  
Vol 12 (12) ◽  
pp. 6721-6735 ◽  
Author(s):  
Haruki Oshio ◽  
Yukio Yoshida ◽  
Tsuneo Matsunaga
Keyword(s):  
Chlorophyll Fluorescence ◽  
Spatial Scales ◽  
Bare Soil ◽  
Estimation Accuracy ◽  
Terrestrial Vegetation ◽  
Analogue Circuit ◽  
Zero Level ◽  
Global Carbon Budget ◽  
Photosynthetic Production

Abstract. Satellite remote sensing of solar-induced chlorophyll fluorescence (SIF) has attracted attention as a method for improving the estimation accuracy of the photosynthetic production of terrestrial vegetation in recent years. The Greenhouse gases Observing Satellite (GOSAT) has the ability to observe both SIF and the concentrations of CO2 and CH4 and thus is expected to contribute to the understanding of the global carbon budget. Evaluating artefact signals (e.g. zero-level offset caused by non-linearity in the analogue circuit in the case of GOSAT) is effective for inferring the instrument status and important for retrieving SIF from satellite measurements. Here we investigate the characteristics of the zero-level offset and the consistency of satellite-derived SIFs by comparing the derived SIF with the Orbiting Carbon Observatory-2 (OCO-2) SIF at multiple spatial scales (footprint to global). The zero-level offset was evaluated using filling-in signals over bare soil while investigating the criteria for identifying barren areas. An analysis of the temporal variation of the zero-level offset over a period of 9 years suggests that the radiometric sensitivity of the GOSAT spectrometer changed after switching the optics path selector in January 2015. The GOSAT SIF was highly consistent with the OCO-2 SIF, with a bias within 0.1 mW m−2 nm−1 sr−1 for most months and an inter-region bias of about 0.2 mW m−2 nm−1 sr−1. Our results agree with the previous comparisons and support the consistency among the present satellite SIF data, which is important for the utilization of those data.

Effects of gibberellic acid and prohexadione-calcium on growth, chlorophyll fluorescence and quality of okra plant

2007 ◽  
Vol 51 (3) ◽  
pp. 575-578 ◽  
Author(s):  
I. Ilias ◽  
G. Ouzounidou ◽  
A. Giannakoula ◽  
P. Papadopoulou
Keyword(s):  
Chlorophyll Fluorescence ◽  
Gibberellic Acid ◽  
Prohexadione Calcium

Assessment of Seed Yield and Quality of Winter Oilseed Rape Using Chlorophyll Fluorescence Parameters of Pods

2020 ◽  
Vol 63 (2) ◽  
pp. 231-242
Author(s):  
Haixia Xu ◽  
Haiyan Cen ◽  
Zhihong Ma ◽  
Liang Wan ◽  
Weijun Zhou ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Oilseed Rape ◽  
Seed Yield ◽  
Jip Test ◽  
N Application ◽  
Fluorescence Parameters ◽  
Crop Varieties ◽  
Yield And Quality ◽  
Agronomic Management

Abstract. Oilseed rape is one of the leading sources of vegetable oil in the world. Maximizing the seed yield and quality is crucial to improve the profit for farmers and meet the increasing consumer demand for healthy vegetable oil. However, the current evaluation process of seed yield and quality is tedious and inefficient due to its dependence on wet chemistry methods and/or manual measurements of small sample sizes. Because the photosynthesis of pods plays an important role in the accumulation of grain filling, this research aimed to evaluate the seed yield and quality of oilseed rape by using chlorophyll fluorescence (ChlF) parameters. The OJIP kinetics of rape pods were acquired in two independent experiments with different levels of nitrogen (N) application and different crop varieties, respectively. The JIP-test showed that the level of N fertilizer can influence the plant photosynthetic capacity and crop productivity, and the photosynthetic response also varied in the different varieties. The maximum quantum yield for primary photochemistry (Fv/Fm) was a sensitive indicator for evaluating the performance of photosystem II (PSII) activity with the different N applications and varieties. Increased quantum yield and efficiency with more active reaction centers (RCs) were observed under increased N application as well as with variety GY605, leading to higher energy utilization efficiencies. However, superior photosynthetic apparatus in pods is not recommended in high-quality seed breeding because it would increase the contents of glucosinolates and erucic acid. In addition, the random forest (RF) algorithm was proven to be effective in feature selection, and the selected fluorescence parameters mostly showed high correlations with seed yield and quality. These results demonstrate the potential of the ChlF method for assessing the seed yield and quality of oilseed rape at the early podding stage, which could also be useful for advancing crop breeding and improving agronomic management. Keywords: Agronomic management, Chlorophyll fluorescence, Crop varieties, JIP-test, Oilseed rape, Seed quality, Seed yield.

scholarly journals MO Diaries and Their Editors

2021 ◽  
Vol 10 ◽  
pp. MO68-MO91
Author(s):  
Robert Malcolmson ◽  
Patricia Malcolmson
Keyword(s):  
Home Front ◽  
International Affairs ◽  
Modern Life ◽  
Supplementary Material ◽  
War News ◽  
Post War ◽  
The Impact ◽  
Authorial Voice ◽  
Considerable Experience

In August 1939, MO asked its volunteer Observers 'to begin keeping day-to-day personal diaries of everything that happened to them, the conversations they heard and took part in, their general routine of life, and the impact of the war on it’. More than 450 individual diarists wrote for MO during the war. Each diarist had to work out their own way of ‘observing’, and to create a comfortable authorial voice expressing their very varied personal concerns and experiences. Common themes included: outbreak of war; evacuation of children; the blackout; the call-up for compulsory service; and what was thought of as ‘morale’. The diaries show keen minds struggling hard to make sense of the unfolding war news, striving to understand the deeper currents of history and future possibilities in international affairs. Other themes concerned the home front: the wartime difficulties around food and transport; attitudes to class, and the arrival of American troops; and the hopes and fears for post-war reconstruction. This article reflects on its authors' considerable experience of selecting and preparing MO diaries for publication. Editors play a prominent role in the presentation of modern life history. This involves technical and/or literary judgments (about the length and quality of texts, the provision of supplementary material), in relation to the requirements of particular publishing formats (commercial or scholarly). It also involves ethical questions. MO diaries, once submitted, could not be revised; their authors were promised anonymity. Hence publication often requires the consent of the diarists (though few are still alive) or their heirs; and measures are sometimes required to protect the identities of people mentioned.

scholarly journals Lung transplantation: a review of the optimal strategies for referral and patient selection

2019 ◽  
Vol 13 ◽  
pp. 175346661988007 ◽  
Author(s):  
Alicia B. Mitchell ◽  
Allan R. Glanville
Keyword(s):  
Lung Transplantation ◽  
Supply And Demand ◽  
Optimal Strategies ◽  
Perioperative Period ◽  
Respiratory Illness ◽  
Major Surgery ◽  
Potential Candidate ◽  
Supplementary Material ◽  
The Relationship

One of the great challenges of lung transplantation is to bridge the dichotomy between supply and demand of donor organs so that the maximum number of potential recipients achieve a meaningful benefit in improvements in survival and quality of life. To achieve this laudable goal is predicated on choosing candidates who are sufficiently unwell, in fact possessing a terminal respiratory illness, but otherwise fit and able to undergo major surgery and a prolonged recuperation and rehabilitation stage combined with ongoing adherence to complex medical therapies. The choice of potential candidate and the timing of that referral is at times perhaps more art than science, but there are a number of solid guidelines for specific illnesses to assist the interested clinician. In this regard, the relationship between the referring clinician and the lung transplant unit is a critical one. It is an ongoing and dynamic process of education and two way communication, which is a marker of the professionalism of a highly performing unit. Lung transplantation is ultimately a team effort where the recipient is the key player. That principle has been enshrined in the three consensus position statements regarding selection criteria for lung and heart-lung transplantation promulgated by the International Society for Heart and Lung Transplantation over the last two decades. During this period, the number of indications for lung transplantation have broadened and the number of contraindications reduced. Risk management is paramount in the pre- and perioperative period to effect early successful outcomes. While it is not the province of this review to reiterate the detailed listing of those factors, an overview position will be developed that describes the rationale and evidence for selected criteria where that exists. Importantly, the authors will attempt to provide an historical and experiential basis for making these important and life-determining decisions. The reviews of this paper are available via the supplementary material section.

Postharvest quality of ornamental cuttings evaluated by chlorophyll fluorescence

2019 ◽  
pp. 413-420
Author(s):  
A. Christiaens ◽  
J. Van Huylenbroeck ◽  
B. Gobin ◽  
M.C. Van Labeke
Keyword(s):  
Chlorophyll Fluorescence ◽  
Postharvest Quality

scholarly journals Students Perceptions of Effectiveness of Course Contents, Supplementary Material and Tutorial Support in Phonology Course offered By Allama Iqbal Open University, Islamabad

2019 ◽  
Vol IV (II) ◽  
pp. 546-563
Author(s):  
Ubaidullah Khan ◽  
Shaista Zeb ◽  
Muhammad Uzair
Keyword(s):  
English Language ◽  
Applied Linguistics ◽  
Evaluation Study ◽  
Open University ◽  
Teaching Techniques ◽  
Supplementary Material

This study has been conducted to evaluate the Phonology course offered by the Department of English Language & Applied Linguistics, Allama Iqbal Open University, Islamabad, Pakistan. The research is a descriptive evaluation study that aims to investigate the effectiveness of the course. It is based on the feedback of the students regarding the effectiveness of course contents, supplementary material, and tutorial support. A survey-based questionnaire was designed, which sought students opinions about the above three areas. The questionnaire was administered to 24 students studying at one of the 26 study centers. The data have been analysed statistically/quantitatively as well as qualitatively. The study found out that the textbook needs to be revised/rewritten with the latest teaching techniques included in it. The supplementary material needs to be made more relevant, and the quality of printed and recorded material needs to be improved.

Sign in / Sign up

Export Citation Format

Share Document