Search

Simple Summary: Trachycarpus nanus is a national, second-class, rare and endangered plant in China, and a plant species endemic to Yunnan. This species has a high medicinal, ecological, and scientific value, but it is currently on the verge of extinction. Therefore, it is urgent to learn its extinction risk under global warming. We predict its multi-temporal distribution pattern based on the optimized MaxEnt model. The results show that precipitation is the most important factor. In the future, drastic climatic changes and human disturbances may lead to the extinction of this species, so it is necessary to strengthen the protection of this species using specific strategies. Climate change affects the geographical distribution of plant species. Rare Trachycarpus nanus with a narrow distribution range, high medicinal value and extremely small population is facing increasing extinction risks under global climate change. In this study, 96 recorded occurrences and 23 environmental factors are used to predict the potential suitable area of T. nanus based on the optimized MaxEnt (3.4.4) model and ArcGIS (10.7) software. The results show that when the parameters are FC = LQ and RM = 1, the MaxEnt model is optimal and AUC = 0.946. The distribution patterns were predicted in the past, present, and four future phases, i.e., 2021–2040 (2030), 2041–2060 (2050), 2061–2080 (2070), and 2081–2100 (2090). The main factors are the annual precipitation (bio12), mean temperature of the coldest quarter (bio11), temperature seasonality (bio4), precipitation of the wettest quarter (bio16), and isothermality (bio3). The potential distribution of T. nanus is primarily concentrated in central Chuxiong, encompassing a total potential suitable area of 5.65 × 104 km2. In historical periods, the total habitat area is smaller than that in the present. In the future, the potential suitable area is generally increased. The centroid analysis shows that T. nanus will move to a high-altitude area and to the southeast. But its dispersal capacity may not keep up with the climate change rate. Therefore, additional protection sites for this species should be appropriately established and the habitat connectivity should be enhanced. [ABSTRACT FROM AUTHOR]

Globalization is the major confronting challenge of higher education worldwide. And internationalization has become a response of higher education to meet the demands and challenges of globalization. In the recent decades, Chinese government has developed different policies to steer education reforms in order to achieve the aim of internationalization. The internationalizing process has produced contradictory changes in academic workplaces. This study explores how globalizing processes affect academic work and academics' workplace learning in China. It reports on a series of policy changes, and the effects of these policies on the workplace learning of academics. The changing policies positively affect academics by bringing rich information and resources to their workplaces. But at the same time, academic work is becoming increasingly restrictive and controlled. The self-interests of the academics are reconstituted in terms of the interests of government and university, producing tension in academics' workplaces. Moreover, the conflicts among different policies cause confusion. We argue that the changing policies in relation to the internationalization of higher education have affected academics in both positive and negative ways. Therefore, there is a call for policy-makers to adjust the existing policies in order to create a better policy environment for academics.

E Difference analysis of grain number in different panicle parts, the panicle is divided into 3 parts namely top (top, from 1-1 to 4-2 panicle positons), middle (mid, from 5-1 to 8-2 panicle positons) and bottom (bot, from 9-1 to 12-2 panicle positons) respectively. B Eating quality of different panicle locations under H treatment, the panicle is divided into 3 parts namely top (top, from 1-1 to 4-2 panicle positons), middle (mid, from 5-1 to 8-2 panicle positons) and bottom (bot, from 9-1 to 12-2 panicle positons) respectively. [Extracted from the article]

Ep type is an important morphological improvement (following dwarf breeding and ideal plant type) that has contributed to breeding super-high yielding, and shows a pleiotropic effect in increasing grain yield and also nitrogen-use efficiency (NUE) in rice. Nevertheless, it remains unclear whether Ep has adverse effects on eating quality and how it affects nitrogen uptake and assimilation. In this study, we developed a pair of near-isogenic lines (NILs) for panicle type (NIL-Ep, NIL-non Ep) in the Liaogeng 5 (LG5) and Akihikari (AKI) backgrounds. Rice plants of the NIL-Ep had higher grain numbers per panicle in the middle to bottom spike positions than plants of the NIL-non Ep. The increased grain number is not only is the key factor leading to increased yield but also is the reason for reduced the eating quality. The content of prolamin and glutelin was significantly higher in NIL-Ep, which resulted in higher hardness and worse viscosity of rice after cooking. In addition, the activity of several essential enzymes catalyzing nitrogen metabolism was higher in the NIL-Ep line grains than in the NIL-non Ep, especially from the mid to late grain filling stage. Based on these results, we conclude that Ep positively regulates grain protein accumulation, primarily through enhancing the activity of enzymes involved in nitrogen assimilation and redistribution during the mid to late grain-filling stage, resulting in excessive accumulation of grain protein and decreased eating quality. [ABSTRACT FROM AUTHOR]

Globalization is the major confronting challenge of higher education worldwide. And internationalization has become a response of higher education to meet the demands and challenges of globalization. In the recent decades, Chinese government has developed different policies to steer education reforms in order to achieve the aim of internationalization. The internationalizing process has produced contradictory changes in academic workplaces. This study explores how globalizing processes affect academic work and academics’ workplace learning in China. It reports on a series of policy changes, and the effects of these policies on the workplace learning of academics. The changing policies positively affect academics by bringing rich information and resources to their workplaces. But at the same time, academic work is becoming increasingly restrictive and controlled. The self-interests of the academics are reconstituted in terms of the interests of government and university, producing tension in academics’ workplaces. Moreover, the conflicts among different policies cause confusion. We argue that the changing policies in relation to the internationalization of higher education have affected academics in both positive and negative ways. Therefore, there is a call for policy-makers to adjust the existing policies in order to create a better policy environment for academics. [ABSTRACT FROM PUBLISHER]

Glaciers are recognized as key indicators of climate change on account of their sensitive reaction to minute climate variations. Extracting more accurate glacier boundaries from satellite data has become increasingly popular over the past decade, particularly when glacier outlines are regarded as a basis for change assessment. Automated multispectral glacier mapping methods based on Landsat imagery are more accurate, efficient and repeatable compared with previous glacier classification methods. However, some challenges still exist in regard to shadowed areas, clouds, water, and debris cover. In this study, a new index called the automated glacier extraction index (AGEI) is proposed to reduce water and shadow classification errors and improve the mapping accuracy of debris-free glaciers using Landsat imagery. Four test areas in China were selected and the performances of four commonly used methods: Maximum-likelihood supervised classification (ML), normalized difference snow and ice index (NDSI), single-band ratios Red/SWIR, and NIR/SWIR, were compared with the AGEI. Multiple thresholds identified by inspecting the shadowed glacier areas were tested to determine an optimal threshold. The confusion matrix, sub-pixel analysis, and plot-scale validation were calculated to evaluate the accuracies of glacier maps. The overall accuracies (OAs) created by AGEI were the highest compared to the four existing automatic methods. The sub-pixel analysis revealed that AGEI was the most accurate method for classifying glacier edge mixed pixels. Plot-scale validation indicated AGEI was good at separating challenging features from glaciers and matched the actual distribution of debris-free glaciers most closely. Therefore, the AGEI with an optimal threshold can be used for mapping debris-free glaciers with high accuracy, particularly in areas with shadows and water features. [ABSTRACT FROM AUTHOR]

Leave epidermis of 6 Viola spp. from Nanjing was studied, and the similarities and the differences of the microscopical structural characteristics among them were found. The tables comparing their structural characteristics were also listed on.

Microscopical identification of 6 species of plants from Viola in Nanjing was made, and the distinguished microscopical characteristics of them were found. The key was also listed on, which can provide scientific data for identification and exploitation of Viola plants.