Promoting Effect of Choline-Phosphate Cytidylyltransferase Gene (pcyt-1) on Departure of Pinewood Nematode from Monochamus alternatus

In order to study the key gene in internal causes of pinewood nematode (PWN), Bursaphelenchus xylophilus, a departure from its vector beetle, Monochamus alternatus, we collected PWNs extracted from newly emerged M. alternatus and beetles 7 days after emergence. The total RNAs of the two groups of PWNs were extracted, transcriptomes sequencing was performed, and gene expression differences between the two groups of PWN were analyzed. It was found that the expression of the choline-phosphate cytidylyltransferase gene (pcyt-1) was markedly up-regulated. After inhibition of pcyt-1 expression by RNA interference, the rate of lipid degradation in PWN decreased significantly, and the motility of PWN also decreased significantly. The analysis identified that phosphatidylcholine could promote the emulsification and degradation of neutral lipid granules in PWN, which provides sufficient energy for PWN departure from M. alternatus. The up-regulation of the gene pcyt-1 is an important internal factor for PWN departure from its vector.

Is Bitcoin Price Driven by Macro-financial Factors and Liquidity? A Global Consumer Survey Empirical Study

This research aims to utilize macro-financial and liquidity elements as the factors that may affect the price of Bitcoin as the largest cryptocurrency in terms of market capitalization. The macro-financial factors analyzed in this study were foreign exchange, stock market index, interest rates, and gold, while liquidity ratio is the internal factor. This study applied a fixed-effect model (FEM) and Generalized Method of Moments (GMM) on gathered weekly data from 1 January 2017 to 29 December 2019 from 18 countries with the total of 2,826 observations. The analysis revealed that US Dollar amplifies Bitcoin trading; an increase in interest rate will decrease investors’ intention to invest in Bitcoin as a speculative asset, and gold could replace Bitcoin as a substitute asset. Moreover, Bitcoin was found to be highly liquid, which attracts many investors, while the stock market index proved to be insignificant.

Procedure for determining the effect of internal and external factors on the startup thrust spread of a liquid-propellant rocket engine

Despite of the package of measures to adjust a liquid-propellant rocket engine (LPRE) to a specified operating regime, minimum acceptable spreads in the geometrical parameters and operating conditions of its units and assemblies steel remain. These internal factors together with external ones (the pressure and temperature of the propellant components at the engine inlet) govern the engine thrust spread. To provide an acceptable engine thrust spread according to the engine requirements specification, it is important to know the spread value as early as at the stage of off-engine tryout of the engine units and assemblies. The aim of this work is to develop a procedure for calculating the effect of external and internal factors on the LPRE startup thrust spread. This paper presents a procedure for determining the effect of internal and external factors on the LPRE startup thrust spread. The procedure includes the development of a mathematical model of engine startup that accounts for the maximum number of internal factors, the choice of internal factors that produce the maximum effect on the LPRE startup thrust spread, the choice of a method for specifying the external and internal factor spread, engine startup calculations at different combinations of external and internal factor spread values, engine thrust spread determination, determining the statistical and the theoretical distributions of the 90 percent thrust time spread and the steady thrust spread, and assessing their goodness of fit using Pearson’s chi-squared test. The paper gives an example of calculating the effect of the external and internal factor spread on the LPRE startup thrust spread for a staged-combustion oxidizer-rich sustainer LPRE. Using the results of previous calculations, 12 internal factors that produce the maximum effect on the engine startup thrust spread are identified. It is shown that the calculated spread of the 90 percent thrust (combustion chamber pressure) time lies in the range – 0.08220s to +0.07300s about its nominal value, and the calculated steady engine thrust (combustion chamber pressure) spread lies in the range –6.4 percent to +6.6 percent of the nominal thrust. Using Pearson’s chi-squared test, an estimate is obtained for the goodness of fit of the anticipated theoretical distributions of the 90 percent thrust time spread and the steady thrust spread to the obtained statistical ones.

Indonesian Democracy as A Model for Egypt after The Arab Spring

The Arab Spring in 2011 opened the way for democratization in some Arab countries, including Egypt. Egypt succeeded in overthrowing Hosni Mubarak as the president, but Egypt failed in consolidating democracy after holding a general election in 2012. The main factors of the failure in consolidating democracy in Egypt come from internal and external factors. The internal factor was that Egypt had not been ready for democracy , whereas the external factor was foreign intervention due to national interest. This article analyzes the failure of democratization in Egypt by using Jack Snyder and Georg Sorensen’s theory. In the last part of this article, the writer suggested that Egypt should have learned how to consolidate democracy from Indonesia. Indonesia is the best model of democracy for Egypt due to some reasons. The first one is Indonesia and Egypt near a culturally (religious approach), and the second one is Indonesia's success, as the majority Muslim state, in consolidating democracy since 1998.

An Analysis of Students’ Questioning Skill in English Foreign Language Class

This Research aimed to know the level of questions used by students and to know the student’s factors to ask questions in classroom at sixth semesters at Madako University. This research employed descriptive qualitative research. The samples of the research were five students at class A which were selected purposively. The techniques for collecting data used observation checklist, interview, and documentation. The obtained data were percentage and analyzed based on interactive model of Miles & Huberman, some steps among data reduction, data display, and conclusion drawing. The result of the observation showed that C1 (remembering) (13.3%), C2 (understanding) (26.6%), (analyzing) (33.4%), and (evaluating) (26.7%), while analyzing was a level the most frequently used by the students. The result of interview there were two factors namely: internal and external in internal factor the researcher found that Interest and motives of student curiosity. In external factor that the researcher found lecturer’s factor (motivation of the lecturer) and environmental’s factor. Therefore, the researcher conclude that the student at sixth semester at Madako University have the skill of questions in level medium because most of them only used questions analysis, and they have two factors to ask question, they are internal and external factors.

Cold War Relations between Hungary and Brazil from a Semi-Peripheral Perspective (1960–1980)

During the Cold War, searching for trade benefits and opportunities of diversification motivated the Hungarian government and certain Latin American countries to build economic ties, especially between 1960 and 1980. Economic globalization as an external and state-led industrialization as an internal factor served as motivations to build links between command economy Hungary and “capitalist” Latin American states. The article focuses on relations between Hungary and Brazil, emphasizing their similar, semi-peripheral position in world economy that led to the perception of each other as dependent economies on the superpowers (the Soviet Union and the United States, respectively) attempting to loosen these ties instead of an ‘ideological rival.’

Research on Value Investment of Start-up Companies

This study investigates how investors can strengthen their value investment by applying the SWOT analysis in the Start-up company context. By conducting a constructive study with two cases, we develop a construction for qualitative and quantitative reference information with the help of the literature on Start-ups and value investment, the data on CB insights.com. This reference information for two Start-ups comprises funding data, investors, web traffic, news articles, patent data, and regulatory filings. This study also associates each information element to the internal factor assessment and external factor assessment of two Start-ups and accordingly develops metrics regarding the value investment. In addition, it demonstrates the different nature of two Start-ups for operating business to highlight the divergent value metrics. The key contributions of this study are the developed construction for qualitative and quantitative reference information and concluding that the founding team, market, product, business model, and competition are important factors for the development of Start-up company and investors' decision-making. The results of this study, and particularly the developed criterion, build avenues for further research on Start-ups and value investment.

FAKTOR YANG MEMPENGARUHI KEJADIAN INFEKSI POST OPERASI DI RUANG RANAP WIJAYA KUSUMAH RSUD KOTA BANJAR

Status gizi, usia dan faktor ekonomi merupakan faktor internal pasien yang mempengaruhi frekuensi infeksi. Masyarakat masih belum mengetahui status gizinya dan tidak dapat memperbaikinya, dengan penyebab yang bervariasi baik dari keadaan ekonomi maupun dari kurangnya pengetahuan masyarakat tentang gizi. Faktor internal lain dalam frekuensi infeksi adalah usia, pada pasien yang lebih tua dari 70 tahun. Faktor usia di atas 70 dapat menurunkan pertahanan tubuh. Tujuan penelitian ini adalah untuk mengetahui faktor-faktor yang mempengaruhi kejadian infeksi post operasi di bangsal Vijaya Kusumah RSUD Kota Banjar. Penelitian ini menggunakan beberapa jenis penelitian korelasi. Populasi penelitian ini terdiri dari seluruh pasien pasca operasi dan sampel sebanyak 21 responden. Alat yang digunakan dalam penelitian ini adalah kuesioner, dan analisis data yang digunakan dalam penelitian ini adalah univariat dan bivariat. Hasil penelitian menunjukkan bahwa tidak ada pengaruh faktor status gizi terhadap kejadian infeksi post operasi, pengaruh faktor status gizi terhadap kejadian infeksi post operasi dan pengaruh faktor ekonomi terhadap kejadian infeksi post operasi. Akibatnya, faktor status gizi tidak mempengaruhi angka infeksi pasca operasi, tetapi faktor status gizi dan tingkat ekonomi ditemukan mempengaruhi angka infeksi pasca operasi. Hasil penelitian ini dimaksudkan untuk digunakan sebagai buku teks dan literatur untuk mengatasi masalah infeksi pasca operasi.Nutritional status, age and economic factors are internal patient factors that affect the frequency of infection. The community still does not know their nutritional status and cannot improve it, with various causes, both from economic conditions and from a lack of public knowledge about nutrition. Another internal factor in the frequency of infection is age, in patients older than 70 years. The age factor over 70 can lower the body's defenses. The purpose of this study was to determine the factors that influence the incidence of postoperative infection in the Vijaya Kusumah ward, Banjar City Hospital. This study uses several types of correlation research. The population of this study consisted of all postoperative patients and a sample of 21 respondents. The instrument used in this study was a questionnaire, and the data analysis used in this study was univariate and bivariate. The results showed that there was no influence of nutritional status factors on the incidence of postoperative infections, the influence of nutritional status factors on the incidence of postoperative infections and the influence of economic factors on the incidence of postoperative infections. As a result, nutritional status factors did not affect postoperative infection rates, but nutritional status factors and economic level were found to influence postoperative infection rates. The results of this study are intended to be used as a textbook and literature to address the problem of postoperative infection.

Analysis of internal factors affecting the health condition of mangrove forests in the coastal area of East Lampung Regency

The surrounding community widely uses mangrove forests as a fulfillment of life. This requires an efforts to preserve the mangrove forest so that no damage occurs. This study aimed to determine the internal factors that affect the health condition of mangrove forests. The research method used to obtain internal factor data is by measuring the ecological indicators of forest health using the Forest Health Monitoring (FHM) method, then the data is processed by the Multiple Regression Analysis method using SPSS 20 through data on internal factors of mangrove forest health which are analyzed for their effect on health conditions of the mangrove forest. The results showed that the significant value of the regression was 0.008 ((α = 0.05) > 0.008), this means that simultaneously the independent variables (tree damage, crown damage, Cation Exchange Capacity-CEC, and biodiversity have an effect on the dependent variable (mangrove forest health) at the level of = 5%. Furthermore, through individual regression coefficients from internal factor data, it is found that the internal factors of biodiversity indicators in measurements 1 and 2 and crown conditions in the second measurement do not affect forest health conditions. Therefore, this research concludes that the internal factors that affect the level of forest health in the first measurement are vitality indicators (tree damage/cluster Plot Index-CLI and crown condition) and site quality indicators (CEC). Meanwhile, in the second measurement, there was a change in the crown condition parameters, which did not significantly affect forest health.

Тrophic structures and the specifcs of paleocoenosis of the Middle-Upper Carboniferous skeletal mounds on the Shchuger River (Northern Urals)

Research subject. Organogenic structures such as the Moscowian-Kasimovian skeletal mounds from the Verkhnie vorota section on the Shchuger River (Northern Urals). Materials and methods. The lithological-paleoecological analysis of biohermal limestones and the determination of their fauna in thin sections (60 samples) and polished slabs (10 samples) taken in outcrops 39 on the Shchuger River, 89 m thick. Results. It is revealed that the Middle-Upper Carboniferous skeletal mounds were characterized by a three-level food chain at three stages of their development. Cyanobacteria, calcimicrobes and green algae were the suppliers of organic matter. Their further consumers were bryozoans, brachiopods, fusulinids, small foraminifera and bacteria. Omnivores and predators were absent. It is found that, heterotrophs were the most common organisms at the stabilization stage, while autotrophs were typical of the colonization stage. The paleocenoses of the Kasimovian skeletal mound had a more extensive composition. Here, each developmental stage was represented by two types of paleocenosis, compared to the Moscowian mound. Conclusions. It is found that the main external abiotic factors that controlled the development of the biocenosis in the sites under study were the hydrodynamic regime and sea level fluctuations. An important internal factor was the development of bio-induced cement on the skeletons of organisms, which contributed to the formation of solid frameworks of buildings. Another internal factor was the widespread occurrence of Anchicodiaceae algae, which caused a decrease in the biodiversity of other groups of organisms. The data obtained allowed us to conclude that a shallow sea basin with a good aeration and low hydrodynamic regime existed in this area in the MiddleLate Carboniferous. A decrease in the basin area in the Late Carboniferous was manifested by a reduction in not only algal taxa, but also the biodiversity of the entire ecosystem.