Miracle-dz/UniFAR-FTUs huggingface dataset:
Preliminary screening of the antibacterial activity of Cinnamonum zeylanicum (cinnamon) barks

Cinnamon barks is used to treat microbial and fungal infections in folk medicine. To validate this use, the in- vitro antimicrobial activity of petroleum ether and alcoholic extract of cinnamon barks was evaluated against various microbial strains such as Staphylococcus aureus, Bacillus subtilis, Bacillus cereus, Salmonella typhimurium, Pseudomonas aeuriogenosa, Escherichia coli, Candida albicans and Saccharomyces cerevisiae by using disc diffusion method. Minimum inhibitory concentration (MIC) was determined by agar dilution technique. Both extracts showed significant inhibition against reference gram positive bacteria and fungal strains. MIC value of petroleum ether extract against gram positive and fungal strains was 300 μg / ml and that of alcoholic extract was 200 μg / ml. Neither extract showed inhibitions against gram negative bacteria.
High-speed deformation and fracture of the dioxide-zirconium ceramics and zirconium alumina concrete

The results of dynamic tests of two refractory materials based on zirconium dioxide: three types of ceramics and barium-aluminate concrete. The ceramic specimens had various initial density and porosity and also differed by technology of manufacturing. Compression tests were carried out using the Kolsky technique and its updating - specimen in a rigid jacket. The dynamic stress-strain curves were obtained. The strong influence of sample's initial grain composition, mode of stressed-strained state and technologies of manufacturing of specimens onto ceramics mechanical properties is marked. In the event of a serious accident in a nuclear reactor with its core melting, it becomes crucial to prevent the propagation of the resulting radioactive flux into the en- vironment. The problem of confining the melting core is vital for all the countries using nuclear power plant. A corium trap material is anticipated to undergo an influence of various factors, such as mechanic and thermal shocks resulting after falling the melt and the structural elements into the trap, a vapor explosion resulting from the contact of the melt with water, chemical interaction with corium, and a radiation effect. The anticipated high temperature of corium (2800-3000K) and its chemical activity in oxidizing conditions considerably reduce the choice of materials that could be used for the trap. The currently developed corium trap based on using the highly refractory dioxide zirconium concrete has to increase the life of a protecting trap by two orders of mag- nitude as compared to the construction concrete. However, use of the cements with the melting temperatures of 2300 K and lower in the above concrete reduces the merits of the refractory component - zirconium dioxide. The dioxide zirconium-based sintered ceramics is free from the above drawbacks. To assess the potential of using dioxide zirconium ceramics, comparative studies of dynamic strength of the ceramics and of some highly refractory concretes under high-velocity loading are to be conducted. The aim of the paper is to analyze experimentally the influence of the loading rate on the strength properties of dioxide- zirconium ceramics and concrete based on zirconium aluminate.
Single/Multi-User MIMO Differential Capacity

This chapter will be structured around two contributions by the authors on the topic, (Castanheira & Gameiro 2008) and (Castanheira & Gameiro 2009). The provision of broadband services to everyone is considered one of the key components for enabling the so-called information society. It is more or less consensual that to attain the high-rates envisioned by IMT-2000 (I. R. R. M. M1645 2003) of providing around 1Gbit/s for pedestrian and 100Mbit/s for high mobility, will require the use of multiple antennas at the transceivers, to exploit the scattering properties of the wireless medium. Nevertheless, due to the physical size limitations of the transceivers, the number of antennas cannot be high and the space between them is limited, which implies that the degree of channel independence achieved is not sufficient to attain the high capacities envisioned, in most scenarios. One possible solution to cope with this problem is to have the mobiles simultaneously communicating with a group of geographically distributed antennas with perfect cooperation between them. The key to achieve perfect cooperation is to have the radio signals transparently transmitted / received to / from a central unit (CU), where all the signal processing is done (FUTON 2008). Considering the high capacities envisioned optical fiber, due to its low attenuation and enormous bandwidth is the obvious technology of choice to build these transparent interconnections. However the joint processing of a group of antennas and the remote transmission of their signals to the CU will require additional processing power and will imply additional costs to the overall network. It is also expected, by the law of diminishing returns, that as more and more antennas are jointly processed the improvement in throughput will not increase linearly with the added complexity. Thus a tradeoff must be made between the costs/complexity and the number of antennas deployed. One possible way to ease the complexity problem is to use low complexity/sub-optimal schemes, like Zero-Forcing (ZF) (Caire & Shamai 2003) or BlockDiagonalization (BD) (Seijoon Shim et al. 2008) at the CU. Following this line of thought, in (Jindal 2005) and (Juyul Lee & Jindal 2007), the authors study the incurred losses, in terms of power/rate offsets, between ZF/BD and the optimal scheme, which is well known to be Dirty Paper Coding (DPC). The authors conclude that the losses are higher when the number of transmit antennas is close to the number of aggregate receive antennas. Thereafter the analysis of the gains introduced by the connection of the system users to more transmit antennas is of special importance, either to estimate a “reasonable” number of 9
Mechanical properties of prestressing steel at elevated temperature and after cooling

The mechanical properties of prestressing steel at elevated temperatures and after cooling are essential to the fire resistance design and post-fire evaluation of residual load-carrying capacity of prestressed concrete structures. Although previous tests have provided useful results of mechanical properties of prestressing steel at elevated temperatures, the data obtained are somewhat scattered and still insufficient. Furthermore, few empirical formulas fitting the deterioration of prestressing steel at elevated temperatures and after cooling can be found. This study therefore aims to extend the existing database with reliable data obtained by an accurate testing system. The study focuses on the mechanical properties of prestressing steel at elevated temperatures and after cooling by employing the central core wire of prestressing strand. Grade 1860 strands to GB/T5224 mostly used in Mainland China and Grade 1860 strands to BS5896 used in European countries are tested. The results are obtained using the steady-state method and compared with those from available literature and design standards.
Effect of Organizational Justice and Organizational Environment on Turn-Over Intention of Health Workers in Ekiti State, Nigeria

This study investigated the effect of organizational justice and organizational environment on turn-over intention of health workers in Ekiti State, Nigeria. A total of two hundred respondents were used for the study. It comprises one hundred and two females and ninety-eight males. These respondents were drawn from three health organizations in in ekiti state. Organizational justice was measured using Organizational Justice Scale developed by Niehoff and Moornan (1993), organizational environment was measured by using Basic Psychological Needs Scale (BPNS) developed by Deci and Ryon (2000) while turnover intention was measure using Turnover Intention Scale developed by Fichman, Jenkins and Klesh (1979). The results revealed that organizational justice has a significant effect on turnover intention while organizational environment has no significant effect on turnover intention. There were no sex differences in justice perception, organizational environment and turn-over intention but there was a significant differences in justice perception and turn-over intention among the various categories of health workers.
Association between postpartum blood levels of glucose and urea and fertility of cross-bred dairy cows in Sudan

This study aimed to find correlations between blood glucose and urea levels and the duration of postpartum period (PPP), number of services per conception (S/C), open period (OP), conception rate (CR) to first service, and the overall CR in 80 multiparous cross-bred dairy cows. The two metabolites were measured 1, 4, 7, 10, and 13 weeks postpartum. The CR to first service and overall CR were 13.8% and 42.8%, respectively. Based on S/C, three groups were identified: Group 1 (G-1) (n = 11) consisting of cows that conceived from first service; G-2 (n = 46) representing cows that needed two inseminations to conceive; and G-3 (n = 23) consisting of repeat breeders (RB). G-1 represented 13.8%, with PPP and OP shorter than cows in G-2 and in G-3, and had blood glucose levels 17.5% and 27.9% higher than levels in G-2 and in G-3, respectively. Until the 7th week postpartum, blood levels of urea were higher in G-1 and lower in G-3. However, in the 10th and 13th weeks postpartum, results were reversed. The PPP, S/C, and OP were negatively correlated with blood glucose over the study period and with blood urea at the first seven weeks postpartum. However, these traits were positively correlated with blood urea measured at 10 and 13 weeks postpartum. It can be concluded that, from this study, maintaining high blood glucose until the 13th week postpartum, high blood urea during the first 7 weeks postpartum, and low blood urea during the 10th and 13th weeks postpartum were associated with good fertility in dairy cows. Keywords : Fertility, first service non-return cows, postpartum period, repeat breeders
Exotic options with Lévy processes: the Markovian approach

This paper proposes the markovian approach to price exotic options under Levy processes. The markovian approach is simpler than the others pro- posed in literature for these processes and it allows to define hedging strategies. In particular, we consider three Levy processes (Variance-Gamma, Meixner and Normal Inverse Gaussian) and we show how to compute American, barrier, com- pound and lookback option prices. We first discuss the use of an homogeneous Markov chain approximating the risk neutral log-return distribution. Then, we de- scribe the methodology to price exotic contingent claims under the three different distributional assumptions and we compare the convergence results.
Title Building domain-specific Web collections for scientific digitallibraries : A metasearch enhanced focused crawling method

Collecting domain-specific documents from the Web using focused crawlers has been considered one of the most important strategies to build digital libraries that serve the scientific community. However, because most focused crawlers use local search algorithms to traverse the Web space, they could be easily trapped within a limited sub-graph of the Web that surrounds the starting URLs and build domain-specific collections that are not comprehensive and diverse enough to scientists and researchers. In this study, we investigated the problems of traditional focused crawlers caused by local search algorithms and proposed a new crawling approach, meta-search enhanced focused crawling, to address the problems. We conducted two user evaluation experiments to examine the performance of our proposed approach and the results showed that our approach could build domain-specific collections with higher quality than traditional focused crawling techniques.
RESCUING BUSINESS: REORGANIZING BANKRUPT FIRMS AS ORGANIZATIONAL PROCESSES*

In the present paper, I examined the processes of corporate bankruptcy proceedings of the listed companies on the Korea Stock Exchange. I collected a comprehensive list of all listed companies that went bankrupt since 1990. The main findings are as follows: first, the economic crisis resulted in a number of large firms going bankrupt; second, the duration varies substantially across the firms that survived; and finally, a set of organizational characteristics such as sales, assets, firm age at the time of bankruptcy, and, most importantly, when a firm filed for bankruptcy influenced the duration of bankruptcy proceedings. These findings illustrate the impacts of key organizational factors and institutional environments on the organizational processes of post-bankruptcy proceedings toward going back to business.
STUDIES IN UREA UTILIZATION IN SUGAR CANE DIETS: EFFECT OF DIFFERENT METHODS OF INCORPORATING UREA IN THE RATION

30 Zebu steers were used to compare the different methods of supplying urea in diets of whole chopped sugar cane supplemented with rice polishings at the rate of l kg per animal per day. The methods were: (A) mixing the urea with the cane as an aqueous solution (200 g urea/kg of solution) at the rate of 50 ml per kg fresh cane; (B) giving the urea separately as a solution in molasses (100 g urea/kg solution) to which the animals were allowed free access. (C) mixing the urea as a solution (248 g urea/litre) in molasses sprayed on the cane at the rate of 50 ml of the solution/kg of fresh cane. The 112 day trial was carried out during the dry season. Mean weight gains for the systems A, B, and C were not significantly different at 793, 796 and 833 g/day. Feed conversion (DM basis) was 7.97, 8.47 and 8.25 and did not differ significantly but DM consumption per 100 kg of body weight was significantly lower for treatment A (2.00) (P <. 04) than for B (2.20) or C (2.14).
Negative Expansion in Two-Molecule System with the Step Function outside the Hard Sphere Wall in a Spherical Cell

The canonical ensemble partition function is obtained for a two-molecule system with the repulsive step function outside the hard sphere wall in a spherical cell. Fluid-fluid phase transition-like behavior is evident at low temperatures. The spinodal line is obtained in the (V, T) domain and a negative expansion coefficient is found in the stable state. The theoretical pVT relationship is confirmed through Monte Carlo simulations. The periodic 108-molecule system examined by Monte Carlo simulations also provides a qualitatively similar pVT relationship to the two-molecule system.
Piezoresistive graphite/polyimide thin films for micromachining applications

In this work, graphite/polyimide composite thin films are introduced and characterized for micromachining applications. The material consists of submicron‐sized graphite particles suspended in a benzophenone tetracarboxylic dianhydride–oxydianiline/metaphenylene diamine polyimide matrix. The resultant material represents a low cost, plasma‐definable polyimide material which has been found to have a large piezoresistive coefficient over a range of graphite loadings. Selected film properties: Young’s modulus, residual stress, and piezoresistivity are investigated for a graphite loading range of 15%–25% by weight using a slightly modified in situ load/deflection technique. Results of mechanical property characterization show that the residual stress is independent of graphite loading and the Young’s modulus increases with increasing graphite loading. The maximum piezoresistive coefficient (gage factor) is 16.8 and occurs at a graphite loading of 18%.
Design and in vitro Evaluation of Gastroretentive Drug Delivery System of Cefixime Trihydrate

Aim: The present investigation concerns with the developments of hydrodynamically balanced tablets of cefixime trihydrate were designed to prolong the gastric residence time after oral administration and thereby increasing drug bioavailability. Materials and Methods: Floating tablets of cefixime trihydrate were prepared by direct compression using hydrophilic rate controlling polymers such as different grades of hydroxypropyl methylcellulose (HPMC) (k100 and 15M), xanthan gum, and ethyl cellulose. Buoyancy was achieved by adding an effervescent mixture of sodium bicarbonate and anhydrous citric acid and along with the binder and diluents. Results and Discussion: The kinetic study results suggested that the drug was released by Fickian diffusion mechanism for the developed floating matrix tablet formulations of cefixime trihydrate. The optimized formulation composed of 15% w/w xanthan gum exhibited 98.71±0.2% drug release within 12 h and the tablets remain floated for <12 h. Fourier transform infrared and differential scanning calorimetry studies were performed for pure drug and its physical mixture with polymer blends showed that no polymeric change interaction was occurred during manufacturing of tablet, and there is no significant change in in vitro dissolution pattern after storage at 40°C/75% R.H for 3 months for their stability studies.
From seismic noise to ocean wave parameters: General methods and validation

[1] Seismic noise is an indirect source of information on ocean waves. Using a model of noise generation and propagation, seismic stations can be separated into those that are mostly sensitive to local sea states, and those that integrate sources from a large oceanic area. The model also provides a classification of noise-generating sea states into three classes. The analysis of Central California seismic noise data, well correlated with local waves, reveals that class I events dominate in summer, caused by a single wind-sea system, and for which ocean wave spectral levels are proportional to seismic spectral levels to an exponentb ≃ 0.9. In winter, noise is dominated by class II generation, for which coastal reflection is important, with a wave spectral density roughly proportional to the seismic spectral density to an exponent b ≃ 0.7. Sporadic events of class III probably produce some of the strongest noise events in Central California and need to be properly screened. These events are caused by opposed wave systems that are usually the wind-sea and a swell. This noise classification can be used to improve on the correlation between measured and estimated wave heights (up tor = 0.93 for daily averages). For other locations, where remote oceanic sources are recorded, a significant wave height estimated from the seismic noise compares well with area-averaged satellite data or wave model results (r > 0.85 for daily averages). These analyses pave the way for quantitative uses of seismic records, including the reconstruction of past wave climates, and the calibration of wave hindcasts.
Effect of sowing direction and crop geometry on water use efficiency and productivity of Indian mustard (Brassica juncea. L.) in semi arid region of India

Indian mustard [Brassica juncea (L.) Czern & Coss. ] is an important oilseed crop for the rainfed, semi-arid region of north-western plains of India. The best direction of sowing with respect to yield is still not clear. Therefore, two Indian mustard varieties differing in their phenotypes (erect and spreading type) were grown in two sowing directions [North-South (NS) and East-West (EW)] along with broadcast to study the effect of direction of sowing, and planting geometry on the actual evapotranspiration (AET), water use efficiency (WUE), biomass production, and yield. Accumulated AET was studied to be higher in the EW direction than in NS sown plots. Direction wise NS sown plots showed higher WUE, and better AET-yield production function (higher coefficient of determination) than the EW sown plots. EW sown plots produced the highest seed yield followed by broadcast sown, and NS sown plots, and proved to be the best in terms of WUE, biomass production and seed yield.
Comparison of Four Different Embolic Materials For Uterine Artery Embolization In Post-Procedure MRI Enhancement

The aim of this study was to assess embolic agent equivalency in uterine artery embolization (UAE) using post-procedure MRI enhancement of uterine fibroids in patients embolized using Embosphere Microspheres, (EM) Contour SE spheres (CSE), Poly-Vinyl Alcohol particles (PVA) and Bead Block spheres (BB). A total of 84 women with 6-month MRI follow-up constituted this retrospective study. Within this group, 25 women were treated with PVA, 23 were treated with CSE, 19 were treated with EM and 17 were treated with BB. Pre- and post-procedure MRI exams were analyzed for the total number of fibroids present in the uterus of each patient and the percentage individual fibroid enhancement of each fibroid was scored in quartile intervals. The overall percentage change in enhancement was then calculated for each patient. Bivariate analysis using Generalized Linear Modeling and one-way ANOVA was used to assess differences in infarction by different embolic materials. follow-up suggests that in the of uterine fibroids by UAE, patients treated Bead Block and Contour SE demonstrate a statistically significant reduced degree of infarction on follow-up MRI than those patients treated with classic PVA or Embosphere microspheres. Further studies must be done to determine whether or not BB and CSE are embolic agents acceptable for continued use in fibroid ablation via UAE.
A Co-Integration Analysis Approach to European Union Integration: The Case of Acceding and Candidate Countries

This paper examines the long-term financial integration of second-round acceding and candidate countries’ with the European Union and the US stock markets during the Accession Process. The lowpair wise correlations between these markets imply portfolio diversification opportunities, yet correlation is a short-term measure. The long-term stock market interdependence is analyzed with Johansen (1991) cointegration approach, which indicates no long-term relationship between the second-round countries and the EU and US stock markets. Yet Engle-Granger (1987) causality test presents evidence of a casual flow from European and US equity markets to Croatian stock market and from Turkish Stock market to Bulgarian stock market suggesting a short-term lead-lag relationship amongst. The results indicate that the completion of accession negotiations with Bulgaria and Romania and ongoing negotiations with Croatia and Turkey have not yet resulted in the complete financial integration of these markets with the European Union. They still offer significant long-term diversification opportunities for the European as well as the US investors.
The GALAH and TESS-HERMES surveys: high-resolution spectroscopy of luminous supergiants in the Magellanic Clouds and Bridge

We report the serendipitous observations of 571 luminous supergiants in the Magellanic Clouds by the spectroscopic GALAH and TESS-HERMES surveys: 434 stars in the Large Magellanic Cloud and 137 in the Small Magellanic Cloud. We also find one star that appears associated with structured star formation in the Magellanic Bridge. Both of these surveys are aimed at the local volume of the Galaxy but have simple, magnitude-limited selection functions that mean they include some observations of luminous extra-Galactic stars. The surveys determine stellar parameter and abundances using The Cannon, a data-driven generative modelling approach. In this work, we explore the results from The Cannon when it is fed the spectra of these intrinsically luminous supergiants in the Magellanic Clouds, which are well outside the normal bounds of The Cannon's training set. We find that, although the parameters are astrophysically incorrect, the $v\sin i$ and the abundances of lithium, barium, and magnesium are excellent discriminants of these stars. It shows that in the future, with an expanded training set, it should be possible to determine accurate values for these types of stars.