With the high availability of agricultural wastes in Malaysia, green energy is practical to be conducted. Thus, a research on the modification of the physical conditions of the solid state culture system, specifically...With the high availability of agricultural wastes in Malaysia, green energy is practical to be conducted. Thus, a research on the modification of the physical conditions of the solid state culture system, specifically different initial moisture content, fermentation temperature, inoculums size and different percentage of carbon and nitrogen sources were conducted to compare the usage of two different lignocellulosic materials which were oil palm frond and banana petiole respectively. After using a conventional method （one factor at a time）, the optimum fermentation conditions would be a combination of 70% initial moisture content （v/w）, at 28 ~C fermentation temperature with supplementation of 1% sucrose （w/w） and 1% peptone using 1 mL of inoculum in order to achieve highest xylanase production which was 1,711.87 U/mL and 1,579.60 U/mL for oil palm frond and banana petiole respectively. It was suggested that oil palm frond showed higher xylanase production compared to banana petiole.展开更多
Language acquisition is a system with four components： language development, academic development, cognitive development and sociocultural development. Based on this theory, Chinese students in the United States are ...Language acquisition is a system with four components： language development, academic development, cognitive development and sociocultural development. Based on this theory, Chinese students in the United States are studied from three perspectives： linguistically, culturally, and social psychologically. It indicated that, to help Chinese students develop their English performance and cultural appreciation in this diverse world, the profession of English teaching in China should cover a variety of domains, including linguistic, cultural and psychological input. Both American and Chinese education can benefit from this special group of Chinese students if they can be better understood, and used as a bridge between China and U. S. cultural and academic exchange. In the meantime, the mirror held up to the Chinese students in these perspectives reflects not only who they are but also who they can become.展开更多
Helicobacter pylori (H. pylori) is widely adaptable for colonization in human stomachs in more than half of the world’s population. The microorganism is characterized by an unusual capability of arranging ...Helicobacter pylori (H. pylori) is widely adaptable for colonization in human stomachs in more than half of the world’s population. The microorganism is characterized by an unusual capability of arranging itself in both genotypic and phenotypic ways. Stressing conditions, including antimicrobial agents in sub-inhibitory concentrations, facilitate entering the viable but nonculturable state in which bacterial cells acquire the coccoid form. This morphotype represents an important strategy for bacterial survival in unsuitable conditions and also allows escape from the immune system. H. pylori is capable of forming biofilm outside and inside the host. For the bacterial population, the sessile growth mode represents an ideal environment for gene rearrangement, as it allows the acquiring of important tools aimed to improve bacterial “fitness” and species preservation. Biofilm formation in H. pylori in the human host also leads to recalcitrance to antibiotic treatment, thus hampering eradication. These lifestyle changes of H. pylori allow for a “safe haven” for its survival and persistence according to different ecological niches, and strongly emphasize the need for careful H. pylori surveillance to improve management of the infection.展开更多
Many historians of China and the world have long worked within certain paradigms that are increasingly recognized to be excessively Eurocentric, linear, and teleological. This article draws on both primary and seconda...Many historians of China and the world have long worked within certain paradigms that are increasingly recognized to be excessively Eurocentric, linear, and teleological. This article draws on both primary and secondary sources to propose a theory of Chinese history that is more sinocentric, cyclical, and open-ended. The theory takes seriously the well-known Chinese emphasis on establishing and maintaining cultural centrality and Chinese interest in learning from the past to influence the present and shape the future. It argues that these concerns have resulted in a spiral or helical pattern of Chinese historical development. It goes on to suggest that the Chinese spiral might help us to conceptualize world history in a way that respects all peoples of the world and all periods of history from the origins of our subspecies to the present. History is in one sense what actually happened in the past and historiography is how people interpret it to meet present needs and realize future aspirations. Given acceleration in the pace of change and expansion in the arena of action, historians can tell us little about what to expect in the future, but they may enhance the range of possibilities by bringing to light various past experiences. In this article I examine how the Chinese experience might assist us in fashioning a more peaceful, just, and sustainable world order.展开更多
文摘With the high availability of agricultural wastes in Malaysia, green energy is practical to be conducted. Thus, a research on the modification of the physical conditions of the solid state culture system, specifically different initial moisture content, fermentation temperature, inoculums size and different percentage of carbon and nitrogen sources were conducted to compare the usage of two different lignocellulosic materials which were oil palm frond and banana petiole respectively. After using a conventional method （one factor at a time）, the optimum fermentation conditions would be a combination of 70% initial moisture content （v/w）, at 28 ~C fermentation temperature with supplementation of 1% sucrose （w/w） and 1% peptone using 1 mL of inoculum in order to achieve highest xylanase production which was 1,711.87 U/mL and 1,579.60 U/mL for oil palm frond and banana petiole respectively. It was suggested that oil palm frond showed higher xylanase production compared to banana petiole.
文摘Language acquisition is a system with four components： language development, academic development, cognitive development and sociocultural development. Based on this theory, Chinese students in the United States are studied from three perspectives： linguistically, culturally, and social psychologically. It indicated that, to help Chinese students develop their English performance and cultural appreciation in this diverse world, the profession of English teaching in China should cover a variety of domains, including linguistic, cultural and psychological input. Both American and Chinese education can benefit from this special group of Chinese students if they can be better understood, and used as a bridge between China and U. S. cultural and academic exchange. In the meantime, the mirror held up to the Chinese students in these perspectives reflects not only who they are but also who they can become.
文摘Helicobacter pylori (H. pylori) is widely adaptable for colonization in human stomachs in more than half of the world’s population. The microorganism is characterized by an unusual capability of arranging itself in both genotypic and phenotypic ways. Stressing conditions, including antimicrobial agents in sub-inhibitory concentrations, facilitate entering the viable but nonculturable state in which bacterial cells acquire the coccoid form. This morphotype represents an important strategy for bacterial survival in unsuitable conditions and also allows escape from the immune system. H. pylori is capable of forming biofilm outside and inside the host. For the bacterial population, the sessile growth mode represents an ideal environment for gene rearrangement, as it allows the acquiring of important tools aimed to improve bacterial “fitness” and species preservation. Biofilm formation in H. pylori in the human host also leads to recalcitrance to antibiotic treatment, thus hampering eradication. These lifestyle changes of H. pylori allow for a “safe haven” for its survival and persistence according to different ecological niches, and strongly emphasize the need for careful H. pylori surveillance to improve management of the infection.
文摘Many historians of China and the world have long worked within certain paradigms that are increasingly recognized to be excessively Eurocentric, linear, and teleological. This article draws on both primary and secondary sources to propose a theory of Chinese history that is more sinocentric, cyclical, and open-ended. The theory takes seriously the well-known Chinese emphasis on establishing and maintaining cultural centrality and Chinese interest in learning from the past to influence the present and shape the future. It argues that these concerns have resulted in a spiral or helical pattern of Chinese historical development. It goes on to suggest that the Chinese spiral might help us to conceptualize world history in a way that respects all peoples of the world and all periods of history from the origins of our subspecies to the present. History is in one sense what actually happened in the past and historiography is how people interpret it to meet present needs and realize future aspirations. Given acceleration in the pace of change and expansion in the arena of action, historians can tell us little about what to expect in the future, but they may enhance the range of possibilities by bringing to light various past experiences. In this article I examine how the Chinese experience might assist us in fashioning a more peaceful, just, and sustainable world order.
