Miracle-dz/UniFAR-FTUs huggingface dataset:
The role of BMP-2, low-level laser therapy and low x-ray doses in dental follicle stem cell migration

ABSTRACT The knowledge of how cells respond to different treatments in terms of their migration potential could improve bone regeneration and osseointegration of dental implants. The objective of this study was to elucidate the effects of various chemoattractants, bone morphogenetic protein-2 (BMP-2), low-level laser therapy (LLLT), and cone beam computed tomography (CBCT) on the migration of dental follicle stem cells (DFSCs). The chemoattractants used in our study were the serum-free (SF) conditioned media that were harvested from osteoblast cell cultures seeded on the surface of titanium implants—Ti6Al7Nb (TiCtrl), implants infiltrated with hydroxyapatite (TiHA), with silicatitanate (TiSiO2), and from culture of DFSCs cultivated on TiCtrl implants. We used the scratch migration assay to evaluate the influence of BMP-2, LLLT therapy, and CBCT on the migration potential of DFSCs. The migration scratch assay indicates that the BMP-2 growth factor is able to increase the DFSC migration compared to control culturing medium and regardless of laser or CBCT exposure. The results demonstrate the importance of improving the implant surface with HA, SiO2, and DFSCs. Stimulated DFSCs will secrete growth factors which will act as chemoattractants for the stem cells of the implant host. Adding growth factors such as BMP-2 can improve the migration process of DFSCs.
Household carbon emission differences and their driving factors in Northwestern China

Based on interview survey data, we used the 2006 IPCC Guidelines for National Greenhouse Gas Inventories, the Peoples Republic of China National Greenhouse Gas Inventory(2007), input-output analysis, and life cycle assessment methodology to assess household CO2 emissions in Northwestern China. The result revealed the status and patterns of household CO2 emissions in this area: (1) average annual household CO2 emission per capita is 2.05 tons CO2 per year; (2) the majority of household CO2 emissions came from coal, electricity and food consumption, in which direct CO2 emissions (related to consumption of fossil fuel) accounted for 39.29 percent, and indirect emissions comprised 60.71 percent; (3) household CO2 emission was mainly affected by geographic environment, family size and income, and household age structure; (4) amounts, sources and driving factors of CO2 emission varied between urban and rural households, as well as between households in different provinces.
Volatile fingerprint and physico-mechanical properties of ‘Muscat blanc’ grapes grown in mountain area: a first evidence of the influence of water regimes.

the volatile composition of aromatic grape varieties at harvest is a very important criterion in the choice of vinification technique to yield the optimal quality of the final product. the berry mechanical characteristics are important for assessing resistance to fungal attacks and for the estimation of shattering. In this study the effect of irrigation on the volatile fingerprint and the mechanical properties of the Muscat blanc (Vitis vinifera L.) grapes grown in mountain north-west region of Italy was investigated. three water regimes were compared: standard irrigation, moderate irrigation and drought. In the meteorological conditions of the considered season, a significant increase in the amounts of the most representative free volatile components of the Muscat blanc variety (linalool and geraniol markers), was observed in standard irrigation treatment. Significantly higher amounts of four c13-norisoprenoid bound compounds were observed in the drought treatment with respect to the standard treatment. Furthermore, no influence of irrigation treatment on berry skin hardness and thickness parameters was noted. therefore, in the considered alpine environment, on aromatic Muscat blanc variety, the optimum irrigation treatment is an important choose to improve the quality of the grapes.
The effect of the configuration of a single electrode corona discharge on its acoustic characteristics

A new sparker system based on pulsed spark discharge with a single electrode has already been utilized for oceanic seismic exploration. However, the electro-acoustic energy efficiency of this system is lower than that of arc discharge based systems. A simple electrode structure was investigated in order to improve the electro-acoustic energy efficiency of the spark discharge. Experiments were carried out on an experimental setup with discharge in water driven by a pulsed power source. The voltage–current waveform, acoustic signal and bubble oscillation were recorded when the relative position of the electrode varied. The electro-acoustic energy efficiency was also calculated. The load voltage had a saltation for the invaginated electrode tip, namely an obvious voltage remnant. The more the electrode tip was invaginated, the larger the pressure peaks and first period became. The results show that electrode recessing into the insulating layer is a simple and effective way to improve the electro-acoustic energy efficiency from 2% to about 4%.
Detection of Gas-Metal Interactions By in Situ Measurements of Localized Surface Plasmon Resonance Energies at High Spatial Resolution

Introduction During heterogeneous catalysis, gas adsorption on the surface of metal nanoparticles (NPs) causes a local electron density change. This change can be measured optically by shifts in the energy of the localized surface plasmon resonance (LSPR) peak [1]. However, for a given NP, determination of which particular surface is adsorbing requires higher spatial resolution than can typically be achieved with optical methods. A monochromated electron source in a transmission electron microscope (TEM) provides the necessary spatial and energy resolution to study LSPR shifts within a NP [2, 3].
Nitrification in acid soils

Certain of the permanent grass plots at Rothamsted, which have been cut for hay and have received the same manurial treatment every year since 1856,* of late years have declined in yield, and the herbage hasassumed an unhealthy condition. The plots affected are those to which nitrogen in the form of a mixture of ammonium chloride and sulphate is applied; the one receiving the highest amount of ammonium salts now carries a rank vegetation, consisting almost entirely of three species of grass — Holcus lanatus, Alopecurus pratensis, and Arrenatherum avenaceum— growing in coarse tufts with bare spaces between. The surface of these bare patches, which are spreading yearly, consists of a mat of peat-like decayed vegetation; a similar peaty formation is to be observed on the other plots receiving smaller amounts of ammonium salts. In determining the nitrifying power of a number of Rothamsted soils,f Mr. S. F. Ashby observed that these grass soils failed to set up nitrification when small quantities were added to media suitable to the development of nitrates, indicating the comparative absence of the organisms causing nitrification. It was also noticed that the soil of these plots was distinctly acid, sufficiently so to redden blue litmus paper pressed against it in the moist state, a condition first observed by YoelckerJ to be set up by the long-continued uses of ammonium salts on the arable soils of the farm of the Royal Agricultural Society at Woburn. Inasmuch as the investigations of Warington and Winogradsky have shown that the process of nitrification can only go forward in the presence of a salifiable base and at once stops in an acid medium, it seemed possible that the observed decline in fertility of these plots might result from a cessation of nitrification due to the acid condition of the soil. Though the soil of the grass plots is of the same origin and belongs to the same general type as that of the other Rothamsted fields—a stiff loam
Etiology of Respiratory Diseases of Poultry Farms in the North Coast of Egypt

The current study aimed to identify the respiratory problems in poultry farms located in the north coast of Egypt from October 2018 to November 2019. A total of 89 poultry flocks (79 broilers, 5 layers, 3 ducks, and 2 turkeys) were investigated for four major viral respiratory pathogens, namely avian influenza (AI) H9N2, AI H5 subtypes, Newcastle Disease (ND), and Infectious Bronchitis (IB) viruses. All 89 flocks were subjected to real-time PCR to investigate AI H9N2 virus. The samples of 31, 43, and 15 out of 89 flocks were selected for the investigation of ND, IB, and AI H5 subtypes viruses, respectively, using real-time PCR. Sample selection was performed according to the mortalities, clinical signs, and post mortem lesions. The positive findings indicated that 22 out of 89 flocks were positive for AI H9N2 virus (2 layers + 20 broilers), 32 out of 43 flocks were positive for IB virus (2 layers + 30 broilers), 24 out of 31 flocks were positive for ND virus (1 Duck + 1 layer+ 22 broilers) and 9 out of 15 flocks were positive for AI H5N8 virus (1 turkey + 1 duck + 7 broilers). Partial sequencing for selected isolates of six ND, five IB, four H9N2, and three H5N8 viruses was applied, then nucleotide sequences were accessed on GenBank. Six ND isolates belonged to genotype Vӏӏ viruses circulating in Egypt. Two IB isolates were related to the classical strain circulating in Egypt, while the other three IB isolates belonged to EGY/Variant ӏӏ. Four H9N2 AI isolates were related to G1-lineage of H9 viruses circulating in the Middle East and Egypt. Three H5N8 AI isolates belonged to the highly diverse clade 2.3. 4.4. b viruses circulating in Egypt. It was concluded that ND and IB viruses isolated in this study were not related to their vaccinal strains. Also, AI H5N8 circulating alone in affected flocks while AI H9N2 circulating alone and/or mixed with either IB or ND viruses. Finally, there is a need to devise a complete strategy to control the isolated respiratory viruses on the north coast of Egypt.
The evaluation of fresh cheese with basil addition

The aim of the study was to assess the fresh cheese with the addition of basil in the form of hydrosol (H1 - 1.0 mL; H2 - 1.25 mL; H3 - 1.50 mL; H4 - 1.75 ml to 1 L of milk). The samples of fresh cheeses were evaluated sensory by Time-Intensity method and chemically (fat content, dry matter, titrable acidity) after 24 hours and vacuum-packed samples of cheeses were evaluated after 7 days storage under refrigeration. From the obtained chemical results we can state that in the case using of hydrosol was increased dry matter after 7 days of storage, the average 4.25 %. Content of acid substances was also increased, from 22.5 °SH to 30.5 °SH. Content of fat was ranged from 3.5 g.100 g -1 (H2) to 6.0 g.100 g -1 (H1) after 24 hours and from 6.0 g.100 g -1 (H4) to 7.3 g.100 g -1 (H3) after 7 days in samples with the addition of hydrosol. From the obtained sensory results we can conclude that from samples of fresh cheese with the addition of basil hydrosol were best evaluated samples H3 (the addition of 1.5 mL hydrosol to 1 L of milk) after 24 hours and 7 days of storage and the weakest intensity was observed in sample H4 (the addition 1.75 mL to 1 L of milk). We can state, that using basil in form as hydrosol can be good alternative for increasing consumption of fresh cheese.
Adsorption of Lead ions onto Activated Carbon derived from Sugarcane bagasse

In this study, activated carbon was developed from sugarcane bagasse and its effectiveness in adsorbing lead (Pb2+) ions from synthetic aqueous solution was examined. Sugarcane bagasse activated carbon (SCBA) was developed in a tube furnace at a temperature of 900 °C, a heating rate of 10 °C/min, residence time of 3 hours, and at a nitrogen flow rate of 100 mL/min. Batch adsorption experiments were carried out to investigate the effects of pH and SCBA dosages on the adsorption process. The batch adsorption test showed that extent of Pb2+ adsorption by SCBA was dependent upon pH and SCBA dosage. The optimum pH for Pb2+ adsorption was found to be at pH 5.0. Maximum Pb2+ removal efficiency obtained from the batch studies was 87.3 % at SCBA dosage of 10 g/L. Equilibrium adsorption data was described by Langmuir model with a coefficient of determination (R2) of 0.9508. Maximum adsorption capacity according to Langmuir model was evaluated to be 23.4 mg/g. The adsorption capacity of the SCBA was compared with that of other plant-based adsorbents. SCBA is an effective adsorbent for the removal of Pb2+ from aqueous solution.
Intellectual Property in a Digital Age

Introduction Piracy of intellectual property (IP)—specifically copyrights—is an ever-growing concern in the United States. The traditional methods of enforcement are not effective in protecting IP anymore because computer technology evolves too quickly for us to create regulations. Since computer technology (i.e. the internet) continues to expand at an increasing rate, new problems arise that we have not yet conceived—the technology has shifted from analog to digital, which presents additional difficulties enforcing the spread of IP, and allows more people to violate the rights of IP owners. The ethical dilemma is the ongoing violation of the fairness and utilitarian models of ethics. Additionally, we cannot enforce regulations against piracy of IP and we need to change certain aspects surrounding IP; one solution may simply be to change the current compensation structure based on the efficiency approach.
Survey on Location based sentiment analysis of Twitter data

--- Big data is a concept used for collecting, storing, and analyzing large volume of data and provides decision making and also support optimization processes. Social media plays an important role in taking decisions about any products based on the reviews provided by the user. It accurately tells about the exact opinion of the user regarding the product. Twitter is one of the famous social network which is used by most the online user. The account holders are allowed to post their opinions in the form of tweets. In the previous approaches, the product reviews alone considered. In the proposed system, tweets of the products are analyzed based on the location and comparisons on the feature specific and gender specific categories. Also, the text tweets along with emojis and images could be analyzed. Tamil tweets can be considered for the analysis purpose.
Extraction and characterization of collagen from pigskins

TypeⅠcollagen was extracted from pig-skin by acid-pepsin digestion method.UV and SDS-PAGE analysis suggest that the extraction product is typeⅠcollagen,and its molecule mass is about 320 kDa.FTIR and DSC analysis can confirm that the collagen have the integrated triple helix structure,which means the collagen own bioactivity.
A Genetic Algorithm for Query Optimization

The growing quantities of unstructured textual information online can represent an untapped goldmine of data, but one of the barriers to exploiting it is finding where these resources are. Information retrieval systems and search engine technologies have developed to tackle this need. However, there are elements of them that can be further developped to suit our needs. In particular, the problem of user queries not being optimal for the search they are trying to perform persists. If we could optimize the query being provided to a retrieval system this could go a long way to improving the quality of information users are receiving from search engines. In this dissertation the applicability of a genetic algorithm to query optimization within the context of information retrieval is explored. First and foremost the goal is to investigate whether this is an effective way of altering a search query to improve retrieval. However, the research is done within the context of trying to develop technologies that would allow easier research and data collection via internet search engines. This specific context requires a unique experimental design framework where the information retrieval system, and the document collection it has indexed, provide limited information to the query expansion techniques being applied. This report shows that a genetic algorithm approach to query optimization proves more effective than other query expansion techniques for retrieval, and introduces a framework for performing such query optimization applicable to any search engine.
Healable green hydrogen bonded networks for circuit repair, wearable sensor and flexible electronic devices

Healable materials have wide applications, particularly in flexible electronics. Developing healable materials with green preparations, manipulations and post-processes, and moderate healing conditions is still a challenge. Herein, inspired by the natural healing phenomena based on hydrogen bonding interaction, a green hydrogen bonded network (GHBN), a hydrogel consisting of eco-friendly materials and connected by hydrogen bonding interaction, that is healable, reshapable, injectable, conductive, renewable, cost-effective and eco-friendly is fabricated using amylopectin/water as the skeleton and free-moving ions as the current carrier. This ternary GHBN can heal rapidly in both mechanical and electrical fields at room temperature. The healing process lasts just 2–3 s without any specific environment, and the healing efficiency reaches 98%. The mechanisms of hydrogen bonded network formation and the healing process are well studied by computational simulations. The GHBN exhibits excellent performance in circuit repair, wearable sensors and flexible electronic devices. This study provides a new strategy to develop electrode materials using natural hydrogen bonded molecules as skeletons that may be applied as flexible electronics.
The Helmholtz-Hodge Decomposition&#x2014;A Survey

The Helmholtz-Hodge Decomposition (HHD) describes the decomposition of a flow field into its divergence-free and curl-free components. Many researchers in various communities like weather modeling, oceanology, geophysics, and computer graphics are interested in understanding the properties of flow representing physical phenomena such as incompressibility and vorticity. The HHD has proven to be an important tool in the analysis of fluids, making it one of the fundamental theorems in fluid dynamics. The recent advances in the area of flow analysis have led to the application of the HHD in a number of research communities such as flow visualization, topological analysis, imaging, and robotics. However, because the initial body of work, primarily in the physics communities, research on the topic has become fragmented with different communities working largely in isolation often repeating and sometimes contradicting each others results. Additionally, different nomenclature has evolved which further obscures the fundamental connections between fields making the transfer of knowledge difficult. This survey attempts to address these problems by collecting a comprehensive list of relevant references and examining them using a common terminology. A particular focus is the discussion of boundary conditions when computing the HHD. The goal is to promote further research in the field by creating a common repository of techniques to compute the HHD as well as a large collection of example applications in a broad range of areas.
The Effects of Calcination Temperatures in the Synthesis of Nanocrystalline Magnesium Oxide via Sol-Gel Technique

This study highlights on a convenient and optimised method for the preparation of nanocrystalline magnesium oxide (MgO) catalyst via sol-gel combustion method. Nanocrystalline MgO was prepared by using polyvinyl alcohol (PVA) as a complexing agent and metal nitrate (Mg (NO 3 )2.6H2O) as a precursor. The obtained MgO powder was calcined at 200 °C, 400 °C, 600 °C and 800 °C. All the MgO calcined samples including commercial MgO were characterised using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-Ray diffraction (XRD) and N2 adsorption-desorption Brunauer–Emmett–Teller (BET). From FTIR analysis, the appearance of a peak at 3700 cm-1 represent the O-H stretching bonded with Mg and the broad absorption peak at 3421 cm-1 indicates O-H stretching band which is due to the absorption of moisture from the surrounding. (BET) results indicate the MgO sample that has been calcined at 400 °C shows the largest surface area. SEM images show there is porosity in all MgO powder. While XRD patterns revealed that higher temperature of calcination gives higher crystallinity of the MgO samples.
Simulasi Refolding Protein 2PTL menggunakan Not Just Another Molecular Dynamics Program (Namd).

NURIKA FITRIANI. Refolding Simulation of 2PTL Protein Using Not Just Another Molecular Dynamics Program (NAMD). Supervised by TONY IBNU SUMARYADA and SETYANTO TRI WAHYUDI. Understanding how the process of unfolding and refolding proteins remains a major challenge in the life sciences. The example of protein that can be observed is protein 2PTL. Protein 2PTL helps Peptostreptococcus magnus to avoid host defenses by using the protein binding properties through kappa light chain interactions. In this research, molecular dynamics simulations were performed for protein 2PTL at 500K during 15 ns for unfolding simulation and at 200K during 30 ns for refolding simulation. The unfolding process occurs at 6.5 ns. In geometry result of RMSD analysis at 500K increased 7. 059Å and decreased is about 2. 683Å at 200K. The degree of amino acid compatibility with native structure in unfolding process is about 36.78%. After the refolding process at 200K do also checking the degree of amino acid compatibility with the native structure is about 62.264%.
Formulation and in vitro Evaluation of pH-Sensitive Cross-linked Xanthan Gum-Grafted Acrylic Acid Copolymer for Controlled Delivery of Perindopril Erbumine (PE)

ABSTRACT A novel xanthan gum-co-acrylic acid superabsorbent hydrogel composite was formulated by free radical polymerization reaction of acrylic acid on xanthan gum. Effect of variables like dynamic swelling ratio, equilibrium swelling ratio, drug loading and drug release was investigated. Swelling ratio increases with decrease in crosslinker concentration. Drug release studies were conducted in pH 7.4 and 0.1N HCl. In acidic environment, drug release was low whereas it was sustained release in alkaline. XG4 showed significant swelling and drug release up to 24 hr. Physicochemical evaluation also confirmed it was optimized formulation. Hence XG4-co-AA was optimized for once daily dose of Perindopril Erbumine. GRAPHICAL ABSTRACT
Computational modeling of urban wind flow and natural ventilation potential of buildings

• A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers.
The Female Entrepreneurs’ attitude towards Entrepreneurship: How Entrepreneurial Orientation and Desirability Influence Intention of Entrepreneurial Students?

Design/Methodology/Approach: To test the research framework and hypotheses, female university students in Oman who have undergone with entrepreneurship subject in their syllabus have been considered as the respondents of the study. Data have been collected through structured questionnaire based on five points Likert scale ranging from 1 as (strongly disagree) to 5 as (strongly agree). To ensure the selection of appropriate participants and their intention level, data were collected in Oman and participants were recruited online via Google Docs as per the convenience sampling method to collect primary data. Survey through Google Docs was conducted in period of April 2019 to May 2019, through which 300 questionnaires were sent and 269 sets were returned, out of which 225 responses were found as useful for data analysis.