129 research outputs found

    Řízení měnového rizika v čínské společnosti

    Get PDF
    Encouraged by the needs of enterprises' transformation and upgrade and the “going out” policy of the country, more and more Chinese enterprises are entering the global markets, however, whether it is an overseas acquisition or the capital operation, enterprises are facing with the foreign exchange risk. They have to start with the management of the foreign exchange risk, the significant influence of government and domestic rules also must be taken into consideration. The aim of this thesis is to analyze and manage the foreign exchange exposure of the chosen company in China (HUAWEI), to do this, it is necessary to research the foreign exchange rate, foreign exchange system and foreign exchange risk, and analyze the impact of foreign exchange risk on Chinese enterprises combining with China’s exchange rate system. And through case study, it will be shown that how to manage the exposure of foreign exchange, so that Chinese enterprises can make better financial managements with foreign exchange risk. The first chapter is introduction, the aim of this thesis and contents of each chapter will be explained in it. The second chapter is the theoretical part, including definition and development of exchange rate, types of exchange rate system, foreign exchange risk and how to manage it. China’s exchange rate system will be introduced in the third chapter, showing how it changes and reforms in different periods, and what characteristics it has. The fourth chapter is application part of foreign exchange rate risk and its management in Chinese company, in this chapter, we will briefly introduce the company, such as its history, corporate affairs, and achievements. Then we will use this company as our case object to analyze its foreign exchange exposure and its management. In the last part of this chapter, some methods and suggestions will be put forward about how to manage the foreign transaction exposure for this company. Finally, we will make a conclusion in the fifth chapter.Encouraged by the needs of enterprises' transformation and upgrade and the “going out” policy of the country, more and more Chinese enterprises are entering the global markets, however, whether it is an overseas acquisition or the capital operation, enterprises are facing with the foreign exchange risk. They have to start with the management of the foreign exchange risk, the significant influence of government and domestic rules also must be taken into consideration. The aim of this thesis is to analyze and manage the foreign exchange exposure of the chosen company in China (HUAWEI), to do this, it is necessary to research the foreign exchange rate, foreign exchange system and foreign exchange risk, and analyze the impact of foreign exchange risk on Chinese enterprises combining with China’s exchange rate system. And through case study, it will be shown that how to manage the exposure of foreign exchange, so that Chinese enterprises can make better financial managements with foreign exchange risk. The first chapter is introduction, the aim of this thesis and contents of each chapter will be explained in it. The second chapter is the theoretical part, including definition and development of exchange rate, types of exchange rate system, foreign exchange risk and how to manage it. China’s exchange rate system will be introduced in the third chapter, showing how it changes and reforms in different periods, and what characteristics it has. The fourth chapter is application part of foreign exchange rate risk and its management in Chinese company, in this chapter, we will briefly introduce the company, such as its history, corporate affairs, and achievements. Then we will use this company as our case object to analyze its foreign exchange exposure and its management. In the last part of this chapter, some methods and suggestions will be put forward about how to manage the foreign transaction exposure for this company. Finally, we will make a conclusion in the fifth chapter.154 - Katedra financívelmi dobř

    Finanční analýza společnosti Lenovo Group

    Get PDF
    Import 02/11/2016This thesis is about what is financial analysis and how to analyze a selected company’s financial situation. Warren Buffett once said: "No one wants to invest in a company do not understand." The aim of submitted thesis is financial analysis of a selected company - Lenovo Group. And the thesis will be divided into five parts: introduction, description of financial analysis methodology, financial profitability of Lenovo Group, financial analysis of Lenovo Group and conclusion. We will select the period from 2011 to 2015, these 5 years as one analysis period. The thesis will be divided into five parts: introduction, description of financial analysis methodology, information about Lenovo Group, analysis and calculation of Lenovo Group and conclusion. It goes without saying that financial analysis is very important, investors should use it to make sense of the enterprise and solve various decision-making problems.This thesis is about what is financial analysis and how to analyze a selected company’s financial situation. Warren Buffett once said: "No one wants to invest in a company do not understand." The aim of submitted thesis is financial analysis of a selected company - Lenovo Group. And the thesis will be divided into five parts: introduction, description of financial analysis methodology, financial profitability of Lenovo Group, financial analysis of Lenovo Group and conclusion. We will select the period from 2011 to 2015, these 5 years as one analysis period. The thesis will be divided into five parts: introduction, description of financial analysis methodology, information about Lenovo Group, analysis and calculation of Lenovo Group and conclusion. It goes without saying that financial analysis is very important, investors should use it to make sense of the enterprise and solve various decision-making problems.154 - Katedra financídobř

    A new species of the genus Cryptoxilos Viereck (Hymenoptera: Braconidae: Euphorinae) from China

    Get PDF
    A new species of the genus Cryptoxilos Viereck, 1911 is described from China. This is the first record of the genus from the East Palaearctic region. The new species is included in a key to the described species of the genus. The subgeneric name Cryptoxiloides Capek & Capecki, 1979 is used to accommodate the Palaearctic species in the genus Cryptoxilos Viereck

    Differences in Induced Volatile Emissions among Rice Varieties Result in Differential Attraction and Parasitism of Nilaparvata lugens Eggs by the Parasitoid Anagrus nilaparvatae in the Field

    Get PDF
    We compared the volatiles of JA-treated plants of six rice varieties and then determined, in the laboratory and field, if they differed in attractiveness to Anagrus nilaparavate Pand et Wang, an egg parasitoid of rice planthoppers. Analyses of volatiles revealed significant differences among varieties, both in total quantity and quality of the blends emitted. On the basis of these differences, the six varieties could be roughly divided into three groups. In a Y-tube olfactometer, female wasps preferred odors from two groups. These preferences corresponded to observed parasitism rates in a field experiment. A comparison of the volatiles with results from behavioral assays and field experiments indicates that the quality (composition) of the blends is more important for attraction than the total amount emitted. The results imply that the foraging success of natural enemies of pests can be enhanced by breeding for crop varieties that release specific volatile

    Discovery of Xestophanopsis gen. n. from China and taxonomic revision of two species misplaced in Ceroptres Hartig, 1840 (Hymenoptera, Cynipoidea: Cynipidae)

    Get PDF
    In the present paper, we describe Xestophanopsis Pujade-Villar &Wang gen. n. to the tribe Diastrophini based on Ceroptres distinctusWang, Liu & Chen, 2012 and transfer Ceroptres distinctusWang, Liu&Chen, 2012 to Periclistus Foerster, 1869 as Periclistus setosus (Wang, Liu & Chen, 2012) comb. n. In addition, we report the first record of Periclistus capillatus Kovalev, 1968 from China, along with the first report and description of themale. Finally, we provide a taxonomic key to all Eastern Palaearctic species of the genus Periclistus

    Identification of molecular subtypes based on PANoptosis-related genes and construction of a signature for predicting the prognosis and response to immunotherapy response in hepatocellular carcinoma

    Get PDF
    BackgroundPrevious studies have demonstrated that PANoptosis is strongly correlated with cancer immunity and progression. This study aimed to develop a PANoptosis-related signature (PANRS) to explore its potential value in predicting the prognosis and immunotherapy response of hepatocellular carcinoma (HCC).MethodsBased on the expression of PANoptosis-related genes, three molecular subtypes were identified. To construct a signature, the differentially expressed genes between different molecular subtypes were subjected to multivariate least absolute shrinkage and selection operator Cox regression analyses. The risk scores of patients in the training set were calculated using the signature. The patients were classified into high-risk and low-risk groups based on the median risk scores. The predictive performance of the signature was evaluated using Kaplan-Meier plotter, receiving operating characteristic curves, nomogram, and calibration curve. The results were validated using external datasets. Additionally, the correlation of the signature with the immune landscape and drug sensitivity was examined. Furthermore, the effect of LPCAT1 knockdown on HCC cell behavior was verified using in vitro experiments.ResultsThis study developed a PANRS. The risk score obtained by using the PANRS was an independent risk factor for the prognosis of patients with HCC and exhibited good prognostic predictive performance. The nomogram constructed based on the risk score and clinical information can accurately predicted the survival probability of patients with HCC. Patients with HCC in the high-risk groups have high immune scores and tend to generate an immunosuppressive microenvironment. They also exhibited a favorable response to immunotherapy, as evidenced by high tumor mutational burden, high immune checkpoint gene expression, high human leukocyte antigen gene expression, low tumor immune dysfunction and low exclusion scores. Additionally, the PANRS enabled the identification of 15 chemotherapeutic agents, including sorafenib, for patients with HCC with different risk levels, guiding clinical treatment. The signature gene LPCAT1 was upregulated in HCC cell lines. LPCAT1 knockdown markedly decreased HCC cell proliferation and migration.ConclusionPANRS can accurately predict the prognosis and immunotherapy response of patients with HCC and consequently guide individualized treatment

    Microbial denitrification characteristics of typical decentralized wastewater treatment processes based on 16S rRNA sequencing

    Get PDF
    Despite the widespread application of decentralized wastewater treatment (WWT) facilities in China, relatively few research has used the multi-media biological filter (MMBF) facilities to investigate the microorganism characteristics. This study utilizes 16S rRNA high-throughput sequencing (HTS) technology to examine the microbial biodiversity of a representative wastewater treatment (WWT) system in an expressway service area. The pathways of nitrogen removal along the treatment route were analyzed in conjunction with water quality monitoring. The distribution and composition of microbial flora in the samples were examined, and the dominant flora were identified using LEfSe analysis. The FAPROTAX methodology was employed to investigate the relative abundance of genes associated with the nitrogen cycle and to discern the presence of functional genes involved in nitrogen metabolism. On average, the method has a high level of efficiency in removing COD, TN, NH3-N, and TP from the effluent. The analysis of the microbial community identified a total of 40 phyla, 111 classes, 143 orders, 263 families, and 419 genera. The phyla that were predominantly observed include Proteobacteria, Acidobacteria, Chloroflexi, Actinobacteria, Nitrospirae, Bacteroidetes. The results show that the system has achieved high performance in nitrogen removal, the abundance of nitrification genes is significantly higher than that of other nitrogen cycle genes such as denitrification, and there are six nitrogen metabolism pathways, primarily nitrification, among which Nitrospirae and Nitrospira are the core differentiated flora that can adapt to low temperature conditions and participate in nitrification, and are the dominant nitrogen removal flora in cold regions. This work aims to comprehensively investigate the diversity and functional properties of the bacterial community in decentralized WWT processes

    Two Improved Multiple-Differential Collision Attacks

    Get PDF
    In CHES 2008, Bogdanov proposed multiple-differential collision attacks which could be applied to the power analysis attacks on practical cryptographic systems. However, due to the effect of countermeasures on FPGA, there are some difficulties during the collision detection, such as local high noise and the lack of sampling points. In this paper, keypoints voting test is proposed for solving these problems, which can increase the success ratio from 35% to 95% on the example of one implementation. Furthermore, we improve the ternary voting test of Bogdanov, which can improve the experiment efficiency markedly. Our experiments show that the number of power traces required in our attack is only a quarter of the requirement of traditional attack. Finally, some alternative countermeasures against our attacks are discussed
    corecore