Miracle-dz/UniFAR-FTUs huggingface dataset:
The Effects of Combined Micron-Scale Surface and Different Nanoscale Features on Cell Response

Sandblasting and acid-etching (SLA) and anodization are the two most commonly used methods for surface modification of biomedical titanium. However, there are unavoidable problems such as residual sand particles and lack of hydrophilicity on the surface of titanium sheets treated with SLA technology. In addition, titanium implants showed only the micro/submicroscopic structure. In order to avoid the residue of sand particles in the surface of titanium, the two surface treatments etching treatment (E) and etched-anodizing (EA) on titanium were used, and their surface topography, surface chemistry, and surface roughness were compared with those of the SLA control group. Their wettability and the biocompatibility were also compared and evaluated. The results show that both E and EA samples have the micro/nano hierarchical structure and better wettability compared with the SLA samples. Their performances, especially the E surfaces, were enhanced in terms of cell adhesion, spreading, proliferation, and differentiation abilities.
Bulk viscosity of a pion gas

We compute the bulk viscosity of a gas of pions at temperatures below the QCD crossover temperature, for the physical value of m{sub {pi}}, to lowest order in chiral perturbation theory. Bulk viscosity is controlled by number-changing processes which become exponentially slow at low temperatures when the pions become exponentially dilute, leading to an exponentially large bulk viscosity {zeta}{approx}(F{sub 0}{sup 8}/m{sub {pi}}{sup 5})exp(2m{sub {pi}}/T), where F{sub 0}{approx_equal}93 MeV is the pion decay constant.
Part II: PM2.5 and Polychlorinated Dibenzo-p-dioxins and Dibenzofurans (PCDD/Fs) in the Ambient Air of Northern China

ABSTRACTThe atmospheric PM2.5, PM2.5/PM10, PCDD/Fs-WHO2005-TEQ, and PCDD/F (polychlorinated dibenzo-p-dioxins and dibenzofuran) phase distributions of 23 cities in southern China, during 2014–2016, were investigated in this study. In general, the cities with higher latitudes had higher PM2.5 concentrations than those with lower latitudes. During 2014–2016, the lowest three-year average concentrations of PM2.5 occurred at Sanya and Haikou and were 16.4 and 21.7 µg m–3, respectively; while the highest concentrations of PM2.5 was occurred at Wuhan and Luzhou and were 68.8 and 63.1 µg m–3, respectively. During 2015–2016, the PM2.5 concentrations of most of cities decreased, but those of five cities (Chengdu, Luzhou, Nanchang, Qujing and Quanzhou) increased, indicting that the air quality of these five cities was still not well controlled. The average RM values of the 23 cities were 5.20, 4.49 and 4.13 in 2014, 2015 and 2016, respectively, which revealed that the PM2.5 concentrations in the cities of southern China slowly decreased, although they were still far above the WHO air quality regulated standard (10 µg m–3). In general, a city with a higher PM2.5 concentration was also had a higher PM2.5/PM10 ratio. Among the 23 cities, the six highest three-year averages of total-PCDD/Fs-WHO2005-TEQ concentrations were 0.0665, 0.0633, 0.0625, 0.0600, 0.0528 and 0.0526 pg-WHO2005-TEQ m–3 in Chengdu, Wuhan, Nanjing, Hefei, Luzhou and Hangzhou, respectively. During 2014, the six cities (Hefei, Nanjing, Wuhan, Guiyang, Shanghai and Chengdu) with the lowest temperatures in winter (an average of 5.4°C), their average particle phase fractions of total-PCDD/Fs-WHO2005-TEQ that were approximately 76%, 53%, 71% and 93% in the spring, summer, fall and winter, respectively; while, the six cities (Haikou, Fuzhou, Guangzhou, Nanning, Nanchang and Changsha) with the highest temperatures in summer (an average of 16.5°C), had average particle phase fractions of total-PCDD/Fs-WHO2005-TEQ that were approximately 61%, 42%, 57% and 81% in the spring, summer, fall and winter, respectively. The results of this study provide information showing the trends of both atmospheric PM2.5 and PCDD/Fs in the cities of southern China. In addition, this study provided the overview relating to the PM2.5 and PCDD/Fs in ambient air of southern China, which was not reported in previous studies. The results of this study were of great importance to present the trends of air quality in China. It is also useful for the establishment of control strategies in the future.
Supplemental Information for “ Theory of long binding events in single molecule controlled rotation experiments on F 1-ATPase ”

Site assignment of binding and release events. A challenging aspect of data analysis in the controlled rotation experiments with fluorescent nucleotides is assigning binding and release events to the correct β subunit of the three. To confirm the site assignment by Adachi et al. a systematic study was performed by reassigning events to the other two subunits in all possible combinations, using the rate constant estimates provided in their work (e.g., forward versus backward rotation, short versus long events and various concentrations). Two criteria were used to assign the outcomes: 1. the smoothness of the function and 2. the degree of “hysteresis”, i.e. the difference of the same rate estimated while rotating in the forward versus the backward direction. The site assignment by Adachi et al. “scored” best, although three other possible assignments came relatively close. We recall that in the controlled rotation experiment the binding and release events were monitored both by rotating the γ shaft in the hydrolysis and synthesis direction, i.e., by increasing and decreasing θ’s, respectively. Rate constants for both binding and release were extracted from both rotational directions in the work of Adachi et al.[1] These reported rate constants extracted from the positive rotation approximately overlap with those extracted from the negative rotation trajectories, and the difference between the two has been attributed by Adachi et al. to uncertainties in their measurements.
A COMBINED APPROACH & SERVICE ORIENTED TECHNOLOGIES THAT ASSISTS SPEED DATA ACCESS OF RESOURCES ON THE NET

Data like a Service (DaaS) develops on service-oriented technologies to allow immediate access to data sources on the internet. Nevertheless, this paradigm boosts several new privacy concerns that traditional privacy models don't handle. Additionally, DaaS composition may reveal privacy-sensitive information. Within this paper, we advise a proper privacy model to be able to extend DaaS descriptions with privacy abilities. The privacy model enables something to define a online privacy policy and some privacy requirements. We propose a privacy-protecting DaaS composition approach permitting to ensure the compatibility between privacy requirements and guidelines in DaaS composition. We advise a settlement mechanism that assists you to dynamically reconcile the privacy abilities of services when incompatibilities arise inside a composition. We validate the usefulness of our proposal via a prototype implementation and some experiments.
Ab initio and semiempirical dielectric response of superlattices

We present a study of the dielectric response of ${(\mathrm{Ga}\mathrm{As})}_{p}∕{(\mathrm{Al}\mathrm{As})}_{p}$ (001) superlattices in a wide range of barrier and well widths. We applied density functional theory and a semiempirical method to obtain the superlattice band structures. These were then used as a starting point to evaluate the optical spectra and macroscopic dielectric constants using time-dependent density functional theory. In this context, we investigated the role of crystal local field effects in determining the anisotropy of the dielectric constants. Furthermore, we calculated absorption spectra including the strong continuum excitonic effect through the use of an appropriate model exchange-correlation kernel. We analyzed in detail the complementarity of the ab initio and semiempirical approaches and we compared the successes and limitations of the different approximation schemes.
Measurement of the Patulin toxicant using high performance liquid chromatography (HPLC) in apple juices supplied in Khorramabad City, Iran

Making use of low quality moldy and worm-eaten fruits for juice production causes various irritations in human body due to its hazardous compounds. Today, Patulin toxicant is one of the most important compounds to be investigated in juices, particularly in apple juices. This research aims to measure the amount of Patulin toxicant and identify the molding factors in apple juices supplied in Khorramabad shops. After preparing a list of shops supplying and selling h\juices in Khorramabad, 64 apple juices packs were collected at random. The Patulin measurement was accomplished using high performance liquid chromatography (HPLC) and the molding factors identification also was performed using macroscopic, microscopic and other necessary tests after the sample were cultured in standard method. Out of 64 sample investigated from presence of lack of mold perspective, 61 (95.3%) lacked mold and 1 (1.6%) had Aspergillus terreus mold and 2 (3.1%) had Penicillium mold. The Patulin level measured in 31 samples (48%) was negative and in 33 ones (52%) was positive in range 5.102-26.484 μg. l-1. The data obtained from samples was evaluated well in comparison to external standards and the correlation coefficient of 0.99 was indicated. The results obtained from this research indicated that the mean Patulin measured in apple juices studied was less than the EU and Iranian standards.
Mathematical Modelling of Insect Like Flapping Wings for Application to MAVs

Abstract: The flight of birds or insects has fascinated physicists and biologists for many centuries. Flapping motion, as shown by many nature flyers, is the most efficient way of flying objects whose size are smaller than 15 cm. In this paper a mathematical modelling of insect-like flapping wings for application to MAVs is presented. To this aim, the first part of the paper gives a brief review of unsteady aerodynamics for flapping wing flight and the most important physical features of the flow are identified. Then a simulation of comprehensive nonlinear MAV model based on quasi-steady method is developed. This model enables us to investigate the influence of each parameter change in flight force generation.
THE GOVERNMENT POLICY IN STRENGTHENING THE ECONOMY TO SEAWEED FARMERS IN SOUTH SULAWESI PROVINCE, INDONESIA

Abstract: This research was a survey research, which aims at revealing the facts of a phenomenon by using the questionnaire as an instrument of primary data collectors. The data were then evaluated and interpreted relating to the activity of seaweed farmers scattered in several districts of South Sulawesi province. The results showed that there is a convenience obtained by the public in the form of government policy in supporting the seaweed farmers. Nearly, all the citizens who live on the coastal area conduct the cultivation of seaweed such as in the regency of Takalar, Jeneponto, Bantaeng, Pangkep, and Barru. Therefore, the production of seaweeds in South Sulawesi has increased significantly since 2005. The seaweed production in South Sulawesi in 2004 was approximately 20.141 tons. It increased in 2007. It was about 42.000 tons. By realizing the production development of the main export commodity of South Sulawesi, the local government is optimistic that the economic growth in this area will be getting better. In addition, other business opportunities can be developed. For example, along the coastal area of Takalar to Sinjai, South Sulawesi Province, there was virtually no longer the location for drying fish. The coastal area has turned into drying seaweed. Keywords: Government, Policy, Seaweed, Production
Developing a Framework for Attractiveness and Capability of Chain Stores in Iran

Nowadays, Chain stores as one of the most important institutions of distribution, with share a brand and central management, are trying for supply, distribution and sale of basic commodity. According to peripheral changes in different dimensions of economic, political, social and also with the emergence fundamental paradigm in business such as service businesses, penetration of IT in business like E-commerce, the answer to this question is important "What features should be have chain stores to be attractive and capability from the internal and external dimensions? " The purpose of this study is to extract main indicators for review the internal and external dimensions of chain stores, based on characteristics of the native country of Iran. According to fundamental studies, comprehensive set of criteria and indicators related to attractiveness and capability of chain stores are presented. The data collection method is using the questionnaires. According to opinions of experts and professionals, a collection of the most important factors are selected. Then the opinions of experts have been analyzed. Finally, the results of this study are presented as a model.
Gender Differences in Perceived Social Support in U.S. Chinese Older Adults

Background: This study examined gender differences in perceived positive and negative social support among U.S. Chinese older adults. Methods: Data were drawn from the PINE study, a population-based study of Chinese older adults in the greater Chicago area. Results: Of the 3,159 Chinese older adults surveyed, 58.9% were women. Compared with men and women were more likely to perceive positive spousal support (rely on: 89.8% vs. 85.2%, p<0.01), family support (open upto: 88.5% vs.81.5%, p<0.001; rely on: 91.8% vs. 87.9%, p<0.001) and friend support (open upto: 74.7% vs. 64.4%, p<0.001; rely on: 61.4% vs. 56.9%, p<0.05), whereas men were more likely than women to perceive negative spousal support (been demanded too much: 17.4% vs. 10.7%, p<0.001; been criticized: 35.6% vs. 25.9%, p<0.001). Younger age (r=0.10), higher levels of education (r=0.10), being married (r=0.08), living with a larger number of people (r=0.06), higher overall health status (r=0.14), better quality of life (r=0.20) and improved health over the past year (r=0.07) were significantly and positively correlated with perceived positive social support in older women. Conclusions: Perceived social support varied by gender among U.S. Chinese older adults. Longitudinal studies are needed to understand the outcomes associated with positive and negative social support.
The Study of Teaching Effective Strategies on Student's Math Achievements

One of the most important factors in student's learning weakness and academic failure, is their unfamilarity or low awareness of the learning strategies and studying in mathematics. This study is performed to examine the students' math and reading skills and their study skills that impact on their academic progress. The main objective of the research is to study with emphasis on training study strategies versus ususal method (teaching without emphasis on training study strategies) to increase the learning of mathematical concepts. The present method is quasi-experimental that via quasi-cluster sampling to adopt 17 guidance girly schools in grade 3th, to gauge effects of teaching reading skills on math learning of the students.The results of T-test showed that students who were taught with emphasis on study skills versus students who have been traditionally trained, had better math performance and higher academic achievement.Therefore it seems that teaching reading stratefies such as cognitive and meta-cognitive will ease mathematical learning process.
CÁC KỸ THUẬT CHỈ THỊ DNA TRONG NGHIÊN CỨU

TÓM TẮT: Từ thập kỷ 80 của thế kỷ trước, các kỹ thuật chỉ thị DNA được bắt đầu và phát triển nhanh chóng trở thành lĩnh vực quan trọng trong sinh học phân tử. Các chỉ thị DNA được sử dụng rộng rãi trong nghiên cứu và chọn lọc. Các kỹ thuật chỉ thị DNA được xây dựng để phát triển các chỉ thị DNA cho nghiên cứu đa dạng di truyền, phát sinh loài, phân loại, đánh dấu và xác định gen; cho chọn lọc nguồn gen và chọn giống nhờ chỉ thị phân tử. Sự phát triển của hàng loạt các chỉ thị DNA khác nhau cùng với các nguyên lý, phương pháp và ứng dụng của chúng dẫn đến việc cần thiết xem xét một cách cẩn thận trong việc lựa chọn kỹ thuật phù hợp cho mục đích nghiên cứu. Không có chỉ thị DNA nào hiện biết có thể đáp ứng đầy đủ tất cả các yêu cầu của nhà nghiên cứu. Phụ thuộc vào vấn đề nghiên cứu, có thể chọn trong các kỹ thuật chỉ thị DNA khác nhau mà mỗi kỹ thuật có thể có một số đặc tính cần thiết. Ở Việt Nam, một số kỹ thuật chỉ DNA được bắt đầu sử dụng từ cuối những năm 90 của thế kỷ XX. Tuy nhiên, việc sử dụng còn hạn chế vì mới chủ yếu sử dụng các kỹ thuật như đa hình DNA nhân bản ngẫu nhiên, kỹ thuật các chuỗi lặp lại đơn giản hay tiểu vệ tinh, kỹ thuật đa hình độ dài các đoạn nhân bản chọn lọc trong các nghiên cứu: đa dạng di truyền, lập bản đồ liên kết phân tử và chọn giống nhờ chỉ thị phân tử ở thực vật. Bài tổng quan này sẽ giới thiệu tổng quát về hầu hết các kỹ thuật chỉ thị DNA hiện có và ứng dụng của chúng trong nghiên cứu và chọn lọc ở thực vật nhằm cung cấp thông tin cần thiết và cập nhật cho các nhà nghiên cứu phân loại, bảo tồn và chọn giống trong việc lựa chọn kỹ thuật chỉ thị DNA phù hợp.
A Study of the Effect of the Use of Antioxidants in Patients with Hepatitis C Receiving Interferon/Ribavirin Therapy on the Response to Therapy

Background and study aim: Treatment of HCV with interferon takes a long duration and has many side effects. The use of antioxidants with interferon/ribavirin therapy is believed to minimize the side effects and improves adherence and hence improves response to therapy. Reactive oxygen species are part of the human defense mechanisms towards infection and they increase due to hepatitis C virus infection. In this study we aim to study the impact of the concomitant use of antioxidants with interferon/ribavirin combination therapy for HCV on response as regards enzymes level, rate of viral clearance as well as liver histopathology. Patients and methods: 240 patients on interferon/ribavirin therapy for chronic hepatitis C divided in two groups. The test group received concomitant antioxidant combination while the control group received only interferon/ribavirin. Follow up of liver function tests, complete blood count, viral load by PCR and post treatment histopathology by liver biopsy were performed. Results: Liver enzymes level in test group achieved a larger and faster decline than in control group. Hematological parameters were significantly higher in the test group all through period of follow up. Viral load and histopathology showed no significant difference between the two groups. Conclusion: concomitant use of antioxidants with interferon/ ribavirin therapy minimizes complications of therapy and rapidly normalizes the liver enzymes level without affecting the rate of response to therapy or histopathology of the liver.
Unbundling and Measuring Tunneling

Managers and controlling shareholders can extract wealth from firms in many different ways. We develop here a framework for analyzing different types of "tunneling" transactions. We divide tunneling into three broad groups: cash flow, asset, and equity tunneling. We model each type of tunneling as decomposable into a probability of tunneling and a magnitude. We present a simple model of how each type of tunneling affects share prices and financial metrics and provide two detailed case studies -- Gazprom in Russia and Coca-Cola in the United States -- to illustrate how these types of tunneling can occur in both emerging and developed markets. Finally, we explore a number of uses of our decomposition approach -- for empirical research into the nature and extent of tunneling; for asset pricing, especially in high-tunneling-risk environments; for legal regulation of tunneling; and for accounting rules.
From State Dependent Diffusion to Constant Diffusion in Stochastic Differential Equations by the Lamperti Transform

This report describes methods to eliminate state dependent diffusion terms in Stochastic Differential Equations (SDEs). Transformations that leave the diffusion term of SDEs constant is important for simulation, and estimation. It is important for simulation because the Euler approximation convergence rate is faster, and for estimation because the Extended Kalman Filter equations are easier to implement than higher order filters needed in the case of state dependent diffusion terms. The general class of transformations which leaves the diffusion term independent of the state is called the Lamperti transform. This note gives an example driven introduction to the Lamperti transform. The general applicability of the Lamperti transform is limited to univariate diffusion processes, but for a restricted class of multivariate diffusion processes Lamperti type transformations are available and the Lamperti transformation is discussed for both univariate and multivariate diffusion processes. Further some special attention is needed for time-inhomogeneous diffusion processes and these are discussed separately.
MODIFIED W-TYPE SINGLE-MODE OPTICAL FIBER DESIGN WITH ULTRA-LOW, FLATTENED CHROMATIC DISPERSION AND ULTRA-HIGH EFFECTIVE AREA FOR HIGH BIT RATE LONG HAUL COMMUNICATIONS

A proposal for the new modifled W type optical flber structure with ultra high efiective area and small dispersion as well as dispersion slope is presented. For the proposed structure, all these features are achieved due to placing extra depressed cladding layers, which is the key to achieve higher efiective area and ∞at dispersion curve compared with the conventional W structures. Meanwhile, the suggested design method is based on the Genetic Algorithm optimization technique to choose optimal value for the structural parameters. Also, our calculation for extracting optical properties of the proposed structure is evaluated analytically. The designed dispersion ∞attened single mode flber has dispersion and its slope respectively within (0.1741{0.9282)ps/km/nm and ((i0:011){ (0.0035))ps/km/nm 2 in the spectral range of (1.46{1.625)"m (S+C+L bands) which are noticeably smaller than the reported value for ultra- low dispersion slope flbers (5). The designed flber has ultrahigh efiective area from 103.56 to 232.26"m 2 in the above wavelength interval. Meanwhile, we show that there is a breakthrough in the quality factor of the ultra-low, ultra-∞attened chromatic dispersion single mode optical flber.
EFFECT OF CROP ROTATION AND TILLAGE SYSTEM ON THE WEED INFESTATION AND YIELD OF SPRING WHEAT AND ON SOIL PROPERTIES

A field experiment was conducted to evaluate the effect of crop rotation and tillage system on the yield and weed infestation of spring wheat as well as on the chemical properties of soil and number of earthworms. The first experimental factor was the cropping system: 1) crop rotation A: pea – spring wheat – durum wheat, 2) crop rotation B: pea – spring barley – spring wheat, 3) cereal monoculture: spring barley – spring wheat – durum wheat, whereas the second one was the tillage system: a) conventional (CT), b) reduced (RT), and c) no-tillage (NT). Spring wheat produced a higher grain yield in crop rotation A than in crop rotation B and cereal monoculture. Its higher yield was also achieved in the CT system than in the NT and RT systems. A higher number and weight of weeds was noted in the cereal monoculture compared to crop rotations A and B. Greater weed infestation occurred also in RT and NT systems than in the CT system. In soil samples from crop rotations A and B, analyses demonstrated higher contents of organic C and total N and a lower C/N ratio than in the cereal monoculture. The increased contents of organic C and total N in the soil were also affected by NT and RT systems, then by the CT system. Also the number of earthworms in soil m was significantly higher in RT and NT than in CT system.