Miracle-dz/UniFAR-FTUs huggingface dataset:
Herding Behavior in the Indonesian Stock Exchange: The Roles and Contributions of Foreign Investors During the Period 2006 to 2011

ABSTRACT Domestic investors in the Indonesian capital market (IDX) tend to be very dependent on the behavior of foreign investors. It is assumed that most of the domestic investors in the IDX are like this, caused by an axiom that the bargaining position of foreign investors is stronger than that of the domestic investors and those of other emerging markets. This study tries to investigate whether the herding behavior exists and whether the assumption that foreign investors have caused instability is true or just a myth during the period 2006-2011.There are three objectives of the study: 1) To prove whether the conduct of domestic investors’ herding behavior in the IDX exists, 2) To prove whether the trading of foreign investors causes the herding behavior and 3) To prove whether the interaction between foreign and domestic investors affect the stock volatility. Using the data from 2006 to 2011, it is found that herding behavior in the IDX exists; moreover, by using VAR analysis, it also indicates that the occurrence of herding behavior is caused by negative feedback trading from foreign investors. The volatility analysis using Parkinson and Garman-Klass methods found the stock volatilities in the IDX increased, caused by the interaction of foreign and domestic investors. Keywords: Herding behavior; foreign investors; domestic investors; market volatility; IDX (Indonesian Stock Exchange) ABSTRAK Pelabur tempatan dalam pasaran modal Indonesia (IDX) adalah sangat bergantung dengan gelagat pelabur asing. Adalah diandaikan, kebanyakan pelabur tempatan dalam Bursa Saham Indonesia (IDX) bersikap begini disebabkan kepercayaan bahawa kedudukan tawar-menawar pelabur asing adalah lebih kuat berbanding pelabur tempatan terutamanya di pasaran yang sedang membangun. Kajian ini cuba menyiasat sama ada gelagat “herding” wujud dan sama ada andaian bahawa gelagat pelabur asing menimbulkan ketidakstabilan adalah benar atau hanya anggapan dalam tempoh 2006 – 2011. Kajian ini mempunyai tiga objektif: 1) Untuk membuktikan bahawa gelagat “herding” di kalangan pelabur tempatan dalam IDX benar-benar wujud; 2)Untuk membuktikan sama ada urus niaga melibatkan pelabur asing menyebabkan gelagat “herding” dan 3)untuk mengenal pasti sama ada interaksi pelabur tempatan dan pelabur asing menyebabkan volatility pasaran saham. Menggunakan data dari tahun 2001 hingga 2011, adalah didapati gelagat “herding” wujud. Tambahan pula berdasarkan analisis VAR, berlakunya gelagat “herding” ini disebabkan oleh tindak balas negatif terhadap urus niaga pelabur asing. Analisis volatility menggunakan kaedah Parkinson dan Garman-Klass mendapati naik turun nilai saham dalam IDX meningkat disebabkan interaksi di antara pelabur asing dan pelabur tempatan. Kata kunci: Gelagat “herding; pelabur asing; pelabur tempatan; volatiliti pasaran; IDX (Bursa Saham Indonesia)
Comparison of Filtering Algorithms for Rock Point Cloud Data

Over the past years, laser scanner has been frequently used in rock engineering. Several filters have been developed to extract bare-Earth points from point clouds while few filter for point cloud data of rock which is a special kind of point cloud. To find a suitable filtering method for rock points, a research is carried out to determine the characteristics and the performance of these filters and to identify directions for future research. In this paper, nine algorithms are analyzed qualitatively. Five of them are tested on the point cloud of rock and the performances are analyzed quantitatively. The performance of algorithms with local feature is better than others on average, but they have difficulty on filtering the root of vegetation which is close to the ground.
Existence of periodic solutions for a mechanical system with piecewise constant forces

In this study, we consider spring-mass systems subjected to piecewise constant forces. We investigate sufficient conditions for the existence of periodic solutions of homogeneous and nonhomogeneous damped spring-mass systems with the help of the Floquet theory. In addition to determining conditions for the existence of periodic solutions, stability analysis is performed for the solutions of the homogeneous system. The Floquet multipliers are taken into account for the stability analysis [3]. The results are stated in terms of the parameters of the systems. These results are illustrated and supported by simulations for different values of the parameters.
Development and assessment of a recombinant Saccharomyces cerevisiae wine yeast producing two aroma-enhancing β-glucosidases encoded by the Saccharomycopsis fibuligera BGL1 and BGL2 genes

The distinctive varietal flavour of grapes and wine is affected by the absolute and relative concentrations of many com- pounds, including monoterpene alcohols such as citronellol, geraniol, hotrienol, linalool, nerol and α-terpineol. Monoterpenols in grapes and wine can occur either as free volatile and odorous molecules, or as glycosidically bound, odourless, non-volatile complexes. β-Glu- cosidases constitute one group of glycosidases that can help to unleash this latent pool of grape-derived volatile aglycons and provide an additional source of wine aroma and flavour compounds. However, yeast (Saccharomyces cerevisiae) and bacteria (Oenococcus oeni) most commonly used to initiate alcoholic and malolactic fermentation during winemaking have only limited ability to liberate the aro- matic terpenols as well as other aglycones bound to saccharides. Therefore, the purpose of this study was to clone, integrate and express two β-glucosidase genes (BGL1 and BGL2) from the dimorphic yeast, Saccharomycopsis fibuligera, in a commercially available wine yeast strain, VIN13. Using p-nitrophenyl-β-D-glucopyranoside as a synthetic substrate, enzyme assays and kinetic studies indicated that both these two extracellularly produced β-glucosidases were able to cleave glycosidic bonds efficiently. Subsequently, wine from Chenin blanc, Gewurztraminer and Pinotage grapes was made with the transformed and untransformed S. cerevisiae VIN13 strains, and compared. A series of analyses indicated that wines produced by the β-glucosidase-producing VIN13 strain contained slightly high- er levels of terpenols in comparison with the wines produced by the untransformed control VIN13 strain. Surprisingly, the wines pro- duced by the transformed strain also contained increased ester concentrations. Many of these fragrant compounds, when produced in appropriate concentrations, would contribute to the fermentation bouquet of wine. The extent to which this acquired capacity of the transformed wine yeast is of practical significance in large-scale wine production is at present unclear but presents a worthwhile propo- sition for further investigation.
Dictionary Based Intra Prediction for Image Compression

Recently image coding has been important and in many field it is necessary. Recently various sparse algorithms have been developed for image compression. This paper presents a dictionary based block intra prediction for image compression with construction of an adaptive trained dictionary. The adaptive trained dictionary is prepared using K-SVD algorithm. K-SVD algorithm update the dictionary based on the sparse algorithms and given image. The prediction residuals selected from different image are used for dictionary training. The orthogonal matching pursuit (OMP) algorithm have employed for selection of dictionary elements and encoding. The proposed method is then integrated into 9 mode H.264 intra coding. Performance of proposed method compared with existing methods. Simulation result shows that proposed scheme has improved efficiency as compared to existing schemes.
SYNTHESIS AND INVESTIGATION SOME PROPERTIES OF WO3 ELECTROCHROMIC THIN FILMS

The study of electrochromic thin films, which are transparent in the visible range, is significantly important in producing smart doors production and saving energy. This paper reports the results of preparing WO3 thin films on glass substrates and ITO substrates by thermal vacuum evaporation method. The influence of annealing temperature on the properties of thin films was investigated by X-ray diffraction, Raman scattering spectroscopy, X-ray energy dispersive spectroscopy, Atomic force microscopy and absorption and transmittance UV–vis spectroscopy. The results show that WO3 thin films have a high transmittance of about 90% in the visible wavelength from 400 to 900 nm, good substrate adhesion. The WO3 thin films were crystallized at 400 o C and the crystallization of thin films on the ITO substrate better than glass substrate. Electrochromic characteristics of WO3 thin films were investigated by Autolab electrochemical system. The results show the transmittance of WO3 thin film was reduced to around 12 % in visible region when increasing the applied voltage from 0.1 V to 0.7 V. The transmittance of the film was completely recovered by using an applied voltage of 2 V.
Complete genome sequence of the Phaeobacter gallae-ciensis type strain CIP 105210 T ( = DSM 26640 T = BS 107 T )

Phaeobacter gallaeciensis CIP 105210 (= DSM 26640 = BS107) is the type strain of the species Phaeobacter gallaeciensis. The genus Phaeobacter belongs to the marine Roseobacter group (Rhodobacteraceae, Alphaproteobacteria). Phaeobacter species are effective colonizers of marine surfaces, including frequent associations with eukaryotes. Strain BS107 was isolated from a rearing of the scallop Pecten maximus. Here we describe the features of this organism, together with the complete genome sequence, comprising eight circular replicons with a total of 4,448 genes. In addition to a high number of extrachromosomal replicons, the genome contains six genomic island and three putative prophage regions, as well as a hybrid between a plasmid and a circular phage. Phylogenomic analyses confirm previous results, which indicated that the originally reported P. gallaeciensis type-strain deposit DSM 17395 belongs to P. inhibens and that CIP 105210 (= DSM 26640) is the sole genome-sequenced representative of P. gallaeciensis.
Authorship Categorization With Neural Network

This paper explores the use of neural networks in author classification. Also exploring the effect of stylometry is another aim of the research. Choosing the algorithm and descriptors are important issues in the research. In this paper methods for the multi-topic machine learning of an authorship attribution classifier were investigated using texts from novels as the data set. Artificial neural network is proposed to classify the texts of authors using a set of lexical descriptors and feed-forward neural network using back propagation. The result shows that Turkish authors Peyami Safa, Orhan Pamuk and Mustafa Necati Sepetcioglu’s two novels are successfully classified.
The electrochemical copper structure forming in the presence of the magnetic field

In the presence metallic layers settled on the surfaces by the electrocrystallization method play significant role in the engineering. Many kind of factors, including the magnetic field presence, decide about the metal’s structure and its quality. The influence that can render the magnetic field in the electrochemical environment is significant. In the article the electrocrystallization issue and the effects of electrocrystallization received under the influence of different kind of the magnetic configuration are presented. There are shown phenomenons existing in the electrochemical bath and the effects of electrocrystallization process as the based microscope structure. Streszczenie. Obecnie bardzo duzą role w inzynierii odgrywają warstwy metalowe osadzane na powierzchniach metodą elektrokrystalizacji. O strukturze metalu i jej jakości decyduje wiele czynnikow, do ktorych dodano jeszcze obecnośc pola magnetycznego. Znaczący jest wplyw, jaki wywierac moze obecnośc pola magnetycznego w środowisku elektrochemicznym. W pracy przedstawiono samo zagadnienie elektrokrystalizacji oraz porownano efekty otrzymane w wyniku elektrokrystalizacji pod wplywem roznego rodzaju czynnikow magnetycznych. W artykule przedstawiony zostanie przebieg zjawisk zachodzących w kąpieli elektrochemicznej i efekty procesu elektrokrystalizacji w postaci wynikow badan mikroskopijnych otrzymanych struktur. (Elektrokrystalizacja powloki miedzianej pod wplywem pola magnetycznego)
A HET search for planets around evolved stars

Abstract We present our ongoing survey of ∼1000 GK-giants with the 9.2-m Hobby-Eberly Telescope in search for planets around evolved stars. The stars selected for this survey are brighter than 11 mag and are located in the section of the HR-diagram, which is approximately delimited by the main sequence, the instability strip, and the coronal dividing line. We use the High Resolution Spectrograph to obtain stellar spectra for radial velocity measurements with a 4-6 m s−1 precision. So far, the survey has discovered a planetary-mass companion to the K0-giant HD 17092, and it has produced a number of plausible planet candidates around other stars. Together with other similar efforts, our program provides information on planet formation around intermediate mass main sequence-progenitors and it will create the experimental basis with which to study dynamics of planetary systems around evolving stars.
Gang members, career criminals and prison violence: further specification of the importation model of inmate behavior

The importation model posits that inmate behavior is primarily an extension of the assorted antisocial behaviors that criminal offenders develop in the community. Persons involved in gangs are viewed as especially at‐risk for prison misconduct. Using the official infraction records of 831 male inmates sampled from the southwestern USA, this study explored the prison violence records of inmates involved in street gangs, prison gangs and both types of gangs vis‐à‐vis chronic offenders. Negative binomial regression models indicated that gang variables were significantly predictive of prison violence only in the full model when various types of gang membership (e.g. street, prison or both) were considered. Overall, the effects of gang membership were smaller than some of the risk factors related to chronic offending, such as history of violence and prior confinement, and other controls such as race. Although investigations of prison violence and misconduct are rightfully and importantly moving toward explanations that integrate importation, deprivation, and situational effects, we conclude that further specification of the importation model is needed.
IMPACT OF EDAPHIC HYDROCARBON POLLUTION ON THE MORPHOLOGY AND PHYSIOLOGY OF PEA ROOTS (PISUM SATIVUM L.)

Exposure to persistent organic hydrocarbon pollutants can have deleterious effects on the growth, physiology and anatomy of plants. Sand collected at an oil-drilling quagmire in southern Algeria was analyzed by GC-FID and found to contain 18mg.Kg -1 hydrocarbons. Pisum sativum L. (pea) plants were grown in laboratory conditions in sandy soil from the site. Plants growing in hydrocarbon polluted sandy soil had shorter primary roots and fewer lateral roots than control plants growing in non-polluted sandy soil. However lateral root dry weight was 35% higher than control. Pollutant-induced oxidative stress on pea roots resulted in lipid peroxidation and accumulation of MDA, H2O2 and O2 in root tips. Enzymatic detox activities of superoxide dismutase and peroxidase were also over 40% higher in plants growing on polluted soil than in controls. The anatomy of pea roots was also affected by hydrocarbonpolluted soil, because xylem vessel differentiation was delayed and an unusual supplementary cell layer was formed in the endoderm. These data suggest pea plants adapt morphologically and anatomically to
Feature selection methods in application to gene expression: autism data

The paper presents the application of several different feature selection methods for recognizing the most significant genes and gene sequences (treated as features) stored in dataset of gene expression microarray related to autism. The outcomes of each method have been examined by analyzing gene expression profiles of selected genes. In the next step fusion of the most relevant features selected by different methods, has been implemented. The optimal number of features has been defined as the set providing the best clustering purity. Streszczenie. Praca prezentuje badanie wybranych metod selekcji cech diagnostycznych w celu wyodrebnienia najbardziej znaczących sekwencji genowych z mikromacierzy ekspresji genow dotyczącej autyzmu. Dla wyselekcjonowanych cech przeanalizowano wartości poziomow ekspresji genow. W kolejnym etapie dokonano fuzji wyselekcjonowanych cech. Optymalny zbior cech wyznaczono na podstawie czystości przestrzeni klasteryzacji. (Metody selekcji cech diagnostycznych w zastosowaniu do ekspresji genow: baza danych autyzmu).
Performance of Strategies for Hierarchical Clustering Routing in Wireless Sensor Networks

The rapidly increased in Wireless Sensor Networks (WSN) demands the need to select the best techniques and strategies to save the energy in WSNs, to hence the life time in WSNs. Which provoke high energy consumption. It is important to conserve the energy and ensure a good transmission in the same time. So in this paper we survey the techniques and methods that are used in WSNs and classified, also we emerged the pros and cons for each method.
Distributed Approaches for Location Privacy

With the advance of location technologies, people can now determine their location in various ways, for instance, with GPS or based on nearby cellphone towers. These technologies have led to the introduction of location-based services, which allow people to get information relevant to their current location. Location privacy is of utmost concern for such location-based services, since knowing a person’s location can reveal information about her activities or her interests. In this thesis, we first focus on location-based services that need to know only a person’s location, but not her identity. We propose a solution using location cloaking based on k-anonymity, which requires neither a single trusted location broker, which is a central server that knows everybody’s location, nor trust in all users of the system and that integrates nicely with existing infrastructures. Namely, we suggest having multiple brokers, each deployed by a different organization (e.g., an operator of a cellphone network) and each knowing the location of only a subset of users, with the subsets being disjoint. The servers and a user can jointly determine the cloaked area based on k-anonymity. We present and analyze two protocols both of which exploit the same idea above. The evaluation of our sample implementation demonstrates that one of the protocol is sufficiently fast to be practical, but the performance of the other protocol is not acceptable for its use in practice. In addition to the distributed k-anonymity protocol which serves as a general solution for location privacy when users’ identities and fine-grained location are not required, we then propose four protocols—Louis, Lester, Pierre and Wilfrid— for a specific, identity required, location-based service: the nearby-friend application, where users (and their devices) can learn information about their friends’ location if and only if their friends are actually nearby. Our solutions do not require any central trusted server or only require a semi-trusted third party that dose not learn any location information. Moreover, users of our protocol do not need to be members of the same cellphone provider, as in existing approaches. The evaluation on our implementation shows that all of the four protocols are efficient.
Evaluation of Phytochemical Composition and Antioxidant Capacity in Various Leafy Vegetables

Current study investigated phytochemical compositions and antioxidant capacity of Korean leafy vegetables including chajogi, gomchwi, meowi and sseumbagwi. β-carotene, total soluble polyphenol, total flavonoids contents were determined, and antioxidant capacity were evaluated by various methods. β-carotene, total soluble polyphenol, total flavonoids contents in gomchwi were significantly higher (as much as 19 folds) compare to other vegetables (p＜0.05). Sseumbagwi extract (100 ㎍/mL) was removed 78.6% of superoxide radicals in xanthin-xanthin oxidase system measured by EPR. Gomchwi showed the highest nitrate scavenging activity as 94.3% at pH 1.2. In SOD-like activity, chajogi, gomchwi, and meowi were evaluated in the range of 12.6～24.5%. All samples were revealed to prevent the reaction of ferrous chloride during 9 days, which were comparable ability with 125 ㎎/100 g of α-tocopherol. The rich phytochemical contents of gomchwi and sseumbagwi influenced to high antioxidant capacity.
Design of an effective automated machine for quality palm kernel production

Palm kernel production potentials of several countries are far from been fully exploited. At present, many countries are operating below expected capacity and this research effort is to develop an appropriate machine for quality production of palm kernel. Power requirement of the machine is 4.29kw, resultant bending moment of the shaft is 4.67Nm and 85.30Nm and diameter of the shaft is 25.39mm. The machine is evaluated using 'Dura' variety at moisture content; 12.00%, 11.10%, 10.20%, 9.60% and 9.00%, and 'Tenera' variety at; 12.00%, 11.00%, 10.00%, 9.10% and 8.20% moisture content. The performance of the machine shows that throughput capacity increases from 625-1270 kg/hr for 'Dura' and also increases from 750-1200 kg/hr for 'Tenera'. Mechanical damage reduces from 2.47-1.40% for 'Dura' and reduces from 1.16-0.20% for 'Tenera'. Functional efficiency increases from 92.30-96.40% for 'Dura' and increases from 95.50-99.07% for 'Tenera'. Quality performance efficiency increases from 91.00-95.30% for 'Dura' and increases from 95.50-98.80% for 'Tenera'. The mean shearing force in 'Dura' is 31.10 ± 0.20N and that of 'Tenera' is 12.66 ± 0.20N.
Fabrication of Hybrid Diamond and Transparent Conducting Metal Oxide Electrode for Spectroelectrochemistry

A novel diamond transparent electrode is constructed by integrating conductive diamond film and transparent conducting metal oxide to combine the superior electrochemical properties of diamond and the electrical conductivity of transparent metal oxide (TCO). Direct growth of diamond on indium tin oxide (ITO) and aluminium doped zinc oxide (AZO) was explored, but X-ray photoelectron spectroscopy measurement reveals that both substrates cannot survive from the aggressive environment of diamond growth even if the latter is regarded as one of the most stable TCO. As a second route, a diamond membrane in silicon frame was prepared by selective chemical etching, and a diamond optically transparent electrode (OTE) was constructed by assembling the diamond membrane on the top of an ITO-coated substrate. The resulting device exhibits a high optical transparency and quasireversible electrochemical kinetics, which are competitive to other diamond OTEs reported previously. Its application in UV-Vis spectroelectrochemical studies on the oxidisation of 4-aminophenol was demonstrated.