Miracle-dz/UniFAR-FTUs huggingface dataset:
Alkaline leaching pretreatment and cyanidation of arsenical gold ore from the Carlin-type Zarshuran deposit

ABSTRACT Carlin-type refractory gold deposits are complex bodies which only occur in certain regions such as the western United States, southwest China, and northwest Iran. It is important to investigate the most suitable treatment option for each deposit from the point of the mineralogical composition. The present study investigates the effect of atmospheric NaOH alkaline pretreatment on the cyanidation gold recovery of the arsenical Carlin-type gold ore from the Zarshuran deposit, Iran (4.2 g t−1 Au feed grade). The results are explained based on the mineralogical considerations and with the aid of thermodynamic and kinetic investigations of the leaching behaviour of the main gold-bearing phases including orpiment, pyrite, and sphalerite. It was found that the high arsenic content of Zarshuran (3.7%) has some implications on the pretreatment and cyanidation processes. Solution potential and pH decreased significantly by the oxidation of arsenic sulphides which resulted in the decreasing oxidation extent of the other sulphides, specifically sphalerite. It was also found that pretreatment only in highly alkaline media (pH > 13) can be effective in gold recovery. Gold and silver extractions during subsequent cyanidation were improved from 69.4 to 80.7% for gold and 44.4 to 88.9% for silver, where the extraction yields of arsenic, iron, and zinc were 93.7, 75.9, and 26.9%, respectively.
A retrospective study of orthodontic treatment with pre-treatment gingival recessions

Background: The development of gingival recessions (GR) after orthodontic treatment (OT) is well described in the literature. However, there is a lack of information about the changes in pre-existing GR during OT. Methods: This retrospective study aimed to examine the change of GR before and after OT. Intraoral photographs of 993 patients treated with fixed appliances between 2005 and 2017 were evaluated. Patients who had at least one GR on the vestibular surface of maxillary/mandibular teeth mesial to first molars were included. GR was measured on good quality plaster models before and after OT. The change of GR (T0-T1) was categorised into the three groups: worsened, did not change and improved (this group consisted of GR, which became better but did not disappear, and fully healed, which disappeared after OT)). The change of GR by ≥0.5 mm was recorded. Statistical analysis was performed using SPSS Statistics (Version 22.0. Armonk, NY, USA). Results: Fifty-one (5.1%) patient had ≥1 GR before OT. Of them, 37 (72.5%) patients were included in the final analysis according to the inclusion criteria. GR before OT was found on 114 buccal/labial surfaces.Significant improvement of mean GR at patient level was found between T0 and T1 (0.45 mm, 95% CI: 0.28, 0.62) (p<0.001). At tooth level the median GR improvement was 0.55 (Q1; Q3: 0.12; 0.96) mm (p<0.001). GR improved in 67 teeth (58.7%), did not change in 41 (36.0%), and worsened in 6 (5.3%). Of the 67 GR, which improved, full healing was observed in 15 (22.4%) teeth. There was a lower chance for GR improvement in cases with pre-treatment open bite (OR 3.35; 95% CI: 1.14, 9.84; p=0.03) and dental Class III patients (OR 2.20; 95% CI: 0.92, 5.28; p=0.03). Conclusions: There was an improvement of GR after orthodontic treatment in most cases. Class III malocclusion and reduced pre-treatment overbite had a negative impact on GR improvement.
Lutein and zeaxanthin status and its relation to body fat percentage and bone mineral density

PERCENTAGE AND BONE MINERAL DENSITY by EMILY R. BOVIER (Under the Direction of Billy R. Hammond, Jr.) ABSTRACT Lutein (L) and zeaxanthin (Z) may prevent oxidative damage associated with macular degeneration and osteoporosis. It may be that LZ status is influenced by personal characteristics that influence the natural history of degenerative conditions. The purpose of this study was to correlate LZ status with total and regional body fat and areal bone mineral density in 63 young adults. Macular pigment was measured using heterochromatic flicker photometry. Serum LZ was quantified with high performance liquid chromatography. Body fat and aBMD were assessed using dual-energy X-ray absorptiometry. Body fat percentage was not related to LZ status (possibly due to a restriction in the range of body fat). Macular pigment was positively related to aBMD (p < 0.05). A relation between LZ status and conditions characterized by oxidative stress is consistent with the recommendation to increase intake of antioxidant-rich foods in order to help prevent the development of degenerative conditions.
Survei Tentang Penerapan Mata Kuliah Pendidikan Inklusi Pada Semua Program Studi di FKIP Unversitas Lambung Mangkurat

Abstrak : Pendidikan inklusi mencerminkan pendidikan adalah hak semua anak. Ilmu Pendidikan inklusi atau sebidangnya menjadi pengaruh penting dalam pergerakannya pada Perguruan tinggi yang menjadi salah satu penentu kualitas Pendidikan Inklusi pada dunia pendidikan. Perguruan tinggi berperan untuk penentu kesiapan peserta didik menjadi calon masyarakat yang mempunyai kelebihan pada bidang ilmu pengetahuan. Adapun tujuan dari penelitian adalah melihat hasil bagaimana penerapan dari bekal mata kuliah pendidikan inklusi di FKIP, ULM dalam pemahaman, implementasi dan pemberian layanan pendidikan saat terjun menghadapi peserta didik anak berkebutuhan khusus. Penelitian ini menggunakan pendekatan kuantitatif untuk meng menjelaskan suatu penelitian yang hasilnya dapat digeneralisasikan dengan menggunakan metode survei. Hasil dari penerapan mata kuliah pendidikan inklusi pada seluruh program studi termasuk dalam kategori “Sangat baik” dengan presentase keseluruhan berjumlah 76,5%. Kata Kunci: Pendidikan Inklusi, FKIP Abstract: Inclusive education reflects education is the right of all children. Inclusive Education or its field has become an important influence in its movement on tertiary institutions which are one of the determinants of the quality of inclusive education in the world of education. Higher education has a role in determining the readiness of students to become prospective people who have advantages in the field of science. The purpose of this research is to see the results of how the application of inclusive education courses in FKIP, ULM in understanding, implementing and providing educational services when engaging students with special needs children. This study uses a quantitative approach to explain a study whose results can be generalized using survey methods. The results of the application of inclusive education courses in all study programs are included in the "Very Good" category with an overall percentage of 76.5%. Keywords: Inclusive Education, FKIP
Characterization of isolated thermophilic campylobacters and associated risk factors in poultry farms of Uttarakhand, India

Background Campylobacters are the common commensals of poultry responsible for several cases of gastroenteritis in humans. The illness, if severe can result into complications causing a nervous disorder named Guillian Barre syndrome. Owing to its serious health implications, the study aimed to screen eight organized poultry farms and their environment (water, litter, manure, and feed) of Uttarakhand state, India for the presence of thermophilic Campylobacter species and their virulence and antibiotic resistance profile. It also undertook identification of risk factors associated with the occurrence of campylobacters in each farm using a questionnaire survey comprising eleven potential risk factors (other animals on farm, reuse of litters, use of foot bath, in house or branded feed, chlorination of water, distance of manure heap, housing system, flock size, floor type, shoe use by farm personnels, moist or dry litter and number of broiler floor). Results Of eight, six farms showed varying occurrence of C.jejuni and C.coli with an overall prevalence of 12.29%. Not a single isolate of C.lari and C.upsaliensis was recorded. Poultry faecal, water and litter samples observed 18.2%, 6% and 1.9% presence, respectively. Feed and manure samples did not appear positive. In 48 revived Campylobacter isolates, 100% presence of cadF and flaA virulence genes were detected followed by cdtB (97.9%), cgtB (22.9%) and ciaB (12.5%), respectively. Ten isolates 23.80%) were multidrug resistant (MDR) exhibiting resistance to at least 3 or more antimicrobial classes. The most common MDR patterns were AMP CX CIP TE (n = 2) and AMP CX CIP (n = 2). Feeding of branded feed was found to have significant association with Campylobacter presence in the examined broiler flocks (p-value 0.0047). Conclusions The study highlights the occurrence of food pathogens, Campylobacter jejuni and C.coli in the poultry farms and their environment of the state. The organisms possessed significant virulence genes capable of developing critical human illness. Overall, the presence of MDR thermophilic campylobacters appears to be a severe public threat.
Aqueous two phase extraction of proteins: From molecular understanding to process development

A high throughput screening method was implemented and applied to an industrial separation task. Previously reported correlations between protein descriptors and distribution were evaluated. A new approach to screen ATPS for their industrial application was devised and put to use for the selection of ATPSs used in centrifugal partitioning chromatography. A new modeling approach based on molecular dynamics was set up. This approach was validated using single PEG molecules in solution.
Probiotic potential and safety characterization of Enterococcus hirae G24 isolated from indigenous raw goat milk

In this paper, an investigation on lactic acid bacterial isolates from ethnic goat raw milk samples were examined for their probiotic potential and safety parameters. For this purpose, isolated bacterial cultures were screened based on certain parameters viz., sugar fermentation, tolerance to temperature, salt, low pH, bile salts, and phenol resistance. After that, these bacterial cultures were more estimated in vitro for auto-aggregation, cell surface hydrophobicity, response to simulated stomach duodenum channel, antibiotic resistance, and antimicrobial activity. Besides, probiotic traits show the absence of gelatinase and hemolytic activity supports its safety. The isolate G24 showed good viability at different pH, bile concentration, phenol resistance and response to simulated stomach duodenum passage but it did not show gelatinase and hemolytic activities. Isolate G24 was susceptible to amikacin, carbenicillin, kanamycin, ciprofloxacin, co-trimazine, nitrofurantoin, streptomycin, and tetracycline. Isolate G24 also exhibited antimicrobial action against five common pathogenic bacteria, such as Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Listeria monocytogens, and Salmonella typhimurium. It displayed the maximum auto-aggregation, cell surface hydrophobicity to different hydrocarbons. Following molecular characterization the isolate G24 was identified as Enterococcus hirae with 16S rRNA gene sequencing and phylogeny. E. hirae G24 bears the excellent properties of probiotics.
Application of Structural Equation Modelling to Assess the Effect of Entrepreneurial Characteristics on Students’ Entrepreneurial Intentions

Entrepreneurship is considered to be an important driver for economic growth. Entrepreneurial intention is, based on the literature, suggested to be a predictor of future entrepreneurial behaviour. Entrepreneurial intention is influenced by several factors including entrepreneurial characteristics. Several studies have examined the relationship between entrepreneurial characteristics and success entrepreneurs. However, there is very little research available on personality factors that drive students’ intentions to start a new business. This study investigates the effect of entrepreneurial characteristics of students at Iranian universities on their entrepreneurial intentions. A survey instrument was designed to measure entrepreneurial intentions as dependent variable as well as entrepreneurial characteristics including need for achievement, risk-taking propensity, innovativeness, self-efficacy and need for independence as independent variables. The sample of 346 students included students studying business, agriculture, and engineering at seven established universities at both graduate and undergraduate levels. Structural Equation modelling (SEM) was employed to test causal relationships among independent and dependent variables. The results indicate that entrepreneurial intention is significantly influenced by entrepreneurial self-efficacy and need for achievement. However, risk taking propensity and need for independence. do not have a direct significant impact on students’ entrepreneurial intentions. Furthermore, the results show that the effect innovativeness is mediated by entrepreneurial self-efficacy. The results of the study provide educators, administrators and policy makers inside and outside universities valuable insights with respect to entrepreneurship education. It may serve students better by increasing its focus on entrepreneurial self-efficacy and need for achievement.
Effect of different variables on physico-chemical properties of Ashwagandha enriched strawberry pulp ice cream

An experiment was conducted to improve physico-chemical properties of ashwagandha enriched strawberry pulp in ice cream. Ice cream with 10, 15, and 20 % strawberry pulp, 0.2, 0.5 and 1.0 % ashwagandha powder was prepared. Strawberry flavor ice cream (without strawberry pulp) was kept as control treatment. Ice cream samples were analyzed for physico-chemical parameter such as overrun, protien, fat, meltdown, moisture, pH. The highest score were awarded to the ice cream with 10% strawberry pulp, 0.2% ashwagandha powder and 14% sugar followed by ice cream with 20% strawberry pulp, 0.5% ashwagandha powder and 14% sugar. The ice cream samples without strawberry pulp were liked least. Overrun, protien, fat, meltdown, moisture, pH was affected significantly at 10% strawberry pulp, 0.2% ashwagandha powder and 14% sugar.
The Role of Radiologic Technology in Enforcing Diagnosis of Covid-19 Disease: Case Report at RSPAW Salatiga

Coronavirus has become a world pandemic since WHO announced it in March 2020. This study aims to report on the role of radiologic technology in helping to diagnose the Covid-19 disease handled by RSPAW Salatiga. The research method chosen was descriptive-analytic case reports. The results of the study explained that radiologic technology of chest X-Ray was able to provide an image of Covid-19 with 89% sensitivity, namely the discovery of reticulonodular, ground-glass opacity (GGO), crazy paving, consolidation, location in the periphery of the lung, and the inferior lobe of the lung.
The Urban Underclass.

Many believe that the urban underclass in America is a large, rapidly increasing proportion of the population; that crime, teenage pregnancy, and high school dropout rates are escalating; and that welfare rolls are exploding. Yet none of these perceptions is accurate. Here, noted authorities, including William J. Wilson, attempt to separate the truth about poverty, social dislocation, and changes in American family life from the myths that have become part of contemporary folklore.
Composition and crystallization behavior of solvent-fractionated palm stearin

ABSTRACT Palm stearin (PS) is an extensively used trans-free hardstock. Depending on process parameters, fractions with unique compositions, hardness, and solid fat content can be tailored toward specific applications. In this work, the composition and crystallization of PS fractionated with acetone at 30°C, 35°C, or 40°C into various liquid (LF) and solid (SF) fractions were investigated. After fractionation, iodine value (IV) of PS changed from 37 to values ranging from 24 to 51. The IV of the LF increased with a decrease in fractionation temperature whereas that of the SF (~24) was unaffected. The main fatty acids of all PS fractions were palmitic and oleic acids, with the LF having a lower palmitic acid but higher oleic acid content than the SF. LF and SF obtained at higher fractionation temperatures showed more rapid crystallization rates. Under the microscope, the LF fractionated at 30°C and 35°C consisted of spherulites whereas those fractionated at 40°C exhibited dendritic crystals. All SF consisted of spherulites comprised of large rod-like crystals. All samples existed as mixtures of β’ and β crystals. This study serves as the basis for the development of baking margarines and pastry shortenings using fractionated PS.
MANAGERIAL ABILITIES AND FACTOR INVESTMENT STYLE PERFORMANCES OF MALAYSIAN MUTUAL FUND MANAGERS

Background and Purpose: Studies focusing on mutual fund managerial abilities and investment style strategies are still scarce in the literature. Thus, this study aims to provide new evidence and insights into the managerial abilities and investment style performances of Malaysian fund managers. Methodology: A total of 444 Malaysian equity mutual funds (EMFs) were evaluated using Carhart’s model incorporated with Treynor-Mazuy (T-M) and Henriksson-Merton (H-M) market timing models for the study period, from January 1995 to December 2017. Findings: Fund managers displayed superior stock selection skills with 32 percent and 43 percent of funds for T-M and H-M respectively, with perverse market timing ability which accounted for 39 percent and 42 percent of funds for T-M and H-M respectively. Perverse timing ability had reduced the superior stock-picking skills of fund managers. This suggests that the EMFs performance could further improve if respective fund managers perform better in market timing ability. The finding also indicates that size effect (SMB) and value effect (HML) play significant roles in investment style strategies, while results of momentum factor (WML) propose that Malaysian fund managers have followed the contrarian strategy. Contributions: This study contributes in several ways especially in the literature of portfolio management as the evidence is obtained from the largest mutual funds sample size and the longest study period. Moreover, this study also used the highest frequency data to study the effects of market timing which were overlooked in previous studies. Keywords: Adjusted carhart, Malaysian market, market timing, mutual fund, stock selection. Cite as: Ling, P-S. , & Abdul-Rahim, R. (2021). Managerial abilities and factor investment style performances of Malaysian mutual funds. Journal of Nusantara Studies, 6(1), 118-135. http://dx.doi. org/10.24200/jonus.vol6iss1pp118-135
Fodder radish cake (Raphanus sativus L.) as an alternative biomass for the production of cellulases and xylanases in solid-state cultivation

Fodder radish (FR) is an oilseed crop with a high potential for biodiesel production due to its high productivity and the quality of its seed oil. FR oil extraction results in a residue that is rich in protein and fiber. In this study, FR cake (FRC) was evaluated as carbon and nitrogen source for the production of cellulases and xylanases using Penicillium echinulatum S1M29 during solid-state cultivation. It was determined that it is possible to partially replace wheat bran (WB) by FRC, resulting in 24.22 ± 0.25U/g Filter Paper Activity (144 hours), 210.5 ± 5.8U/g endoglucanase activity (144 hours), 22.62 ± 0.01U/g β-glucosidase activity (96 hours) and 784.7 ± 70.19U/g xylanase activity (120 hours). These values are equal or higher than the enzymatic activity obtained using WB. These results may contribute to the reduction of the cost of enzymes used in the production of cellulosic ethanol or other biotechnological applications.
Lagrangian process attribution of isotopic variations in near-surface water vapour in a 30-year regional climate simulation over Europe

Abstract. Stable water isotopes are naturally available tracers of moisture in the atmosphere. Due to isotopic fractionation, they record information about condensation and evaporation processes during the transport of air parcels, and therefore present a valuable means for studying the global water cycle. However, the meteorological processes driving isotopic variations are complex and not very well understood so far, in particular on short (hourly to daily) timescales. This study presents a Lagrangian method for attributing the isotopic composition of air parcels to meteorological processes, which provides new insight into the isotopic history of air parcels. It is based on the temporal evolution of the isotope ratios, the humidity, the temperature, and the location of the air parcels. Here these values are extracted along 7-day backward trajectories started every 6 hours from near the surface in a 30-year regional climate simulation over Europe with the isotope-enabled version of the model of the Consortium for Small-Scale Modelling (COSMOiso). The COSMOiso simulation has a horizontal resolution of 0.25 ∘ and is driven at the lateral boundaries by a T106 global climate simulation with the isotope-enabled version of the European Centre Hamburg model (ECHAMwiso). Both simulations are validated against measurements from the Global Network of Isotopes in Precipitation (GNIP), which shows that nesting COSMOiso within ECHAMwiso improves the representation of δ2 H and deuterium excess in monthly accumulated precipitation. The method considers all isotopic changes that occur inside the COSMOiso model domain, which, on average, correspond to more than half of the mean and variability in both δ2 H and deuterium excess at the air parcels' arrival points. Along every trajectory, the variations in the isotope values are quantitatively decomposed into eight process categories (evaporation from the ocean, evapotranspiration from land, mixing with moister air, mixing with drier air, liquid cloud formation, mixed phase cloud formation, ice cloud formation, and no process). The results show that for air parcels arriving over the ocean, evaporation from the ocean is the primary factor controlling δ2 H and deuterium excess. Over land, evapotranspiration from land and mixing with moister air are similarly important. Liquid and mixed phase cloud formation contribute to the variability of δ2 H and deuterium excess, especially over continental Europe. In summary, the presented method helps to better understand the linkage between the meteorological history of air parcels and their isotopic composition, and may support the interpretation of stable water isotope measurements in future.
In Vitro One‐Pot Enzymatic Synthesis of Hyaluronic Acid from Sucrose and N‐Acetylglucosamine: Optimization of the Enzyme Module System and Nucleotide Sugar Regeneration

Enzymatic in vitro synthesis of hyaluronic acid (HA) is the technology of choice for the production of defined HA preparations under controlled conditions. One drawback is the high costs for the substrates uridine diphosphate (UDP)‐GlcA and UDP‐GlcNAc. We developed an economic multi‐enzyme strategy for the in vitro one‐pot synthesis of high‐molecular‐weight (Mw)‐HA from cheap and sustainable substrates sucrose and N‐acetylglucosamine (GlcNAc) with in situ regeneration of nucleotide sugars. Multiplexed capillary electrophoresis was used for analysis and optimization of the reaction cascades. We here present novel parameters influencing the polymerization rate and Mw of HA synthesized by Pasteurella multocida hyaluronan synthase (pmHAS1‐703‐His6), including cofactors, kinetics, and substrate ratio. UDP‐GlcA regeneration by sucrose synthase proved to be favorable for kinetic and economic reasons. With optimized reaction conditions, HA with a Mw>2 MDa is synthesized from catalytic UDP concentrations and 10 mm GlcNAc in less than 10 h.