Miracle-dz/UniFAR-FTUs huggingface dataset:
Synthesis of Latex Particles with a Complex Structure As an Emulsifier of Pickering High Internal Phase Emulsions

A one-pot surfactant-free emulsion polymerization was described to produce uniform copolymer particles with core–shell structure, single-cavity structure, single-cavity with multiprotrusions in edge structure, or multiprotrusions structure. The structure of the copolymer particles was tailored by simply varying the cross-linker divinylbenzene (DVB) concentration in the emulsion. The formation of the nonspherical shape of the polymer particles was attributed to the presence of local cross-linking domains in the latex particles at low conversion and the phase separation between the hydrophilic polymer rich region and hydrophobic polymer rich region in further polymerization. With the copolymer particles as an emulsifier, Pickering high internal phase emulsions (HIPEs) having an internal phase fraction of 85 vol% were obtained. The use of nonspherical particles not only stabilizes the Pickering emulsions against coalescence but also enhances the roughness of the void wall in the emulsion-templated porous pol.
TR-2008011: Contrast Transfer Function Correction in Electron Microscopy

The process of object reconstruction from its projections is widely used in many elds. One of the applications of reconstruction from projections is in electron microscopy. Various methods have been developed for correction of blurring that occurs when the projections are obtained by a real instrument. As the attainable resolution increases, new issues become apparent and need to be taken into account in the imaging model. In this review we concentrate on the contrast transfer function and its impact on the quality and usefulness of the reconstructions from images obtained by today's electron microscopes.
Uji Ekstrak Etanol Daun Mengkudu (Morinda citrifolia) SebagaiAntimikroba Terhadap Methicillin Resistant Staphylococcus aureus (MRSA) Secara In Vitro

Methicillin Resistant Staphylococcus aureus (MRSA) dikenal sebagai penyebab paling sering infeksi nosokomial. Jumlah kematian akibat infeksi MRSA lebih banyak dibandingkan dengan angka kematian akibat AIDS. MRSA adalah salah satu strain Staphylococcus aureus yang resisten terhadap penggunaan antibiotik yang biasa digunakan untuk mengatasi infeksi Staphylococcu s. Oleh karena itu perlu dikembangkan alternatif pengobatan antimikroba yang mudah diterima masyarakat, murah, dan mudah didapat. Daun mengkudu ( Morinda citrifolia ) biasa digunakan sebagai sebagai obat tradisional terhadap berbagai macam penyakit. Penelitian ini bertujuan untuk mengetahui efek antimikroba ekstrak etanol daun mengkudu ( Morinda citrifolia ) terhadap Methicillin Resistant Staphylococcus aureus (MRSA) secara in vitro . Metode yang digunakan adalah metode dilusi tabung. Ekstrak daun mengkudu dibuat dengan cara maserasi menggunakan etanol 96%. Konsentrasi ekstrak etanol daun mengkudu yang digunakan adalah 50%, 55%, 60%, 65%, 70%, dan 75%, sedangkan konsentrasi Methicillin Resistant Staphylococcus aureus adalah 10 6 CFU/ml. Hasil uji statistik menggunakan One-way ANOVA menunjukkan bahwa ekstrak etanol daun mengkudu secara signifikan memiliki efek antimikroba terhadap MRSA (p = 0,020) dan terdapat hubungan antara peningkatan konsentrasi ekstrak etanol daun mengkudu dengan penurunan jumlah pertumbuhan koloni MRSA (r = -0,623). Berdasarkan penelitian ini, dapat disimpulkan bahwa ekstrak etanol daun mengkudu dapat digunakan sebagai antimikroba terhadap MRSA dengan kadar bunuh minimumnya adalah 70%.
Flow Mechanism of a Self-Induced Oscillating Jet Issued from a Flip-Flop Jet Nozzle

Flow and pressure in a short diffuser placed at exit of a plane turbulent jet have been studied. With connecting two ports in the diffuser by a duct, jet direction oscillates laterally. Flow pattern in the diffuser is visualized by smoke and instantaneous velocities and pressures are measured by using hot-wire anemometers and semiconductor pressure transducers. Phased-locked ensemble averages of velocity and pressure are deduced to examine the detailed nature of the oscillatory flow. These measurements reveal that the jet attaches alternatively on both walls of the diffuser with keeping two-dimensionality. The detaching speed is much slower than the attaching one. The jet oscillation accompanies the vibration of port pressures and duct flow. By examining the results with fluid dynamics, it is clarified that the jet is bent by port pressure difference via lateral momentum equation without unsteady effect and the duct flow is driven by port pressure difference via unsteady duct flow equation. A flow model to govern the port pressure change is proposed, that is, the pressure is determined by the balance between jet entrainments and air supply. By combining these relationships, a closed feedback model of the oscillation is provided to explain flow mechanism of the oscillation.
MERTK-mediated Signaling in the Retinal Pigment Epithelium: Insights into the Mechanism of RPE Phagocytosis.

The receptor tyrosine kinase MERTK plays an essential role in the phagocytic uptake of shed photoreceptor membranes by the retinal pigment epithelium (RPE). A fundamental aspect of signal transduction by receptor tyrosine kinases involves autophosphorylation of tyrosine residues that recruit Src-homology 2 (SH2)-domain proteins to the receptor intracellular domain. The goal of the current study was to evaluate the interactions of human MERTK with SH2-domain proteins present in the RPE. The MERTK intracellular domain was expressed as a 6xHis-fusion protein (6xHis-rMERTK571-999), purified and phosphorylated. Ni-NTA pull downs were performed using 6xHis-rMERTK571-999 in incubations with recombinant phosphotyrosine-recognition sequences expressed as GST-fusion proteins. In addition, pull downs of native SH2-domain proteins were performed using 6xHis-rMERTK571-999 with protein homogenates from rat RPE/choroid. In western analysis of the recovered proteins, MERTK interactions were detected with both recombinant and native GRB2, PIK3R1 (P85), VAV3, and SRC. In cultured RPE-J cells incubated with rod outer 31 segments (OS), siRNA knockdown of Grb2 had no effect on OS binding, but significantly reduced OS uptake. P85α localized to early phagosomes along with Rab5 and Eea1. Phosphorylation and activation of Src was detected downstream of phagocytosis and Mertk activation. These findings suggest that MERTK signaling in the RPE involves a cohort of SH2-domain proteins with the potential to regulate cytoskeletal rearrangement and membrane movement. Identification of the SH2-domain signaling partners of MERTK is an important step toward further defining the mechanism of RPE phagocytosis that is central to the function and survival of the retina.
De-Oiled Two-Phase Olive Mill Waste Application Impact on Phosphorus Sorption and Fractionation in a Mediterranean Soil Under Olive Production

Low phosphorus (P) availability is a critical impediment to agricultural use of P-fixing soils. De-oiled two-phase olive mill waste (DTOMW) may be used as a soil amendment that can increase P availability and consequently improve crop production. The aim of this study was to investigate the effect of DTOMW amendments to soil on the fractionation, sorption, and buffering capacity of P in soils collected from a typical olive grove amended in the field with 27 and 54 Mg ha−1 of DTOMW for 7 years. Cumulative and residual effects were evaluated in the last year of DTOMW application and 2 years subsequent to the last application. A modified Hedley fractionation scheme was used to evaluate the change in soil P forms, whereas the potential for sorption of P was evaluated by applying the surface Langmuir models to sorption isotherms. The P fractionation results indicated an increase in all P fractions (P < 0.05) in the studied samples. The order of the rates of increase in concentrations of P fractions was HCl-Pi > NaHCO3-Pi ≈ NaOH-Po > HCl-Po ≈ NaOH-Pi > H2O-Pi > NaHCO3-Po > residual P > H2O-Po in the cumulative year, whereas in the residual year, the order of increase was HCl-Pi > NaOH-Po > NaHCO3-Pi > H2O-Pi > NaOH-Pi > HCl-Po > residual P > NaHCO3-Po > H2O-Po. The DTOMW amendments significantly decreased the P sorption maxima (P < 0.05). Most of the total P sorption potential was attributed to low-energy sites, independent of the amendment applications received. The DTOMW soil application decreased indices of P-binding intensity at both high- and low-affinity sites, decreased the P equilibrium buffering capacity, and increased the equilibrium P concentration, indicating that P availability increased with increasing DTOMW rate and also with increasing humified organic matter fraction. This study has shown that in olive grove soils, successive DTOMW amendments may be an effective management practice for controlling their ability to fix inorganic P and increase P availability for the crop for at least 24 months after its application.
Avoidant Attachment to the Marital Partner Predicts Decreases in Marital Satisfaction, Stability, and Social Support During Military Deployment: A Sample of Aircrew Personnel

This study examined the role of relationship-specific attachment to the romantic partner in predicting marital satisfaction, marital stability, and the sources of perceived social support during military deployment. It was expected that anxious and avoidant attachment to the spouse would predict more marital discord and a higher likelihood of divorce within five years of returning from deployment, and that a higher level of avoidant attachment to the spouse would predict turning to others for social support while deployed. Online survey data was collected from a sample of 53 U.S. Army, Air Force, and Air National Guard aircrew members who were married while deployed within the last five years. Data were analyzed quantitatively using Pearson correlation, point biserial correlation, multiple regression, and binary logistic regression. The results indicated there is partial support for all three hypotheses. Only avoidant attachment to the spouse predicted more marital discord, a higher likelihood of divorce, and a lower level of social support received from the spouse while deployed. However, there was no corresponding association with a higher level of social support received from sources other than the spouse while deployed. These findings may have implications for military personnel and their spouses in prevention and early intervention efforts to mitigate the effects of avoidant attachment on perceived social support from the spouse while deployed, and on marital discord and stability following deployment.
Bioaccessibility as well as absorption and excretion of mercury in cinnabar

The bioaccessibility and absorption and excretion of mercury in cinnabar were studied.The bioaccessibility of mercury in cinnabar was evaluated by adopting in vitro digestion and dialysis method to simulate the conditions of gastric compartment and intestinal compartment of mercury.The pharmacokinetic parameters of mercury with respect to intragastric administration of cinnabar at a clinical dosage of 50 mg/kg for rats were calculated;and the excretion fraction of mercury in the fecal sample of the rats after intragastric administration of cinnabar at a clinical dosage was determined.Results indicate that,in the gastric compartment,the solubility of mercury from cinnabar is 0.011%;and the bioaccessibility of mercury in the intestinal compartment is 0.003 3%. The time-course pharmacokinetic parameters of mercury when the rats are intragastrically given cinnabar at a clinical dosage of 50 mg/kg are determined as the maximum concentration in blood Cmax(6.3±1.3) μg/L,time to reach the maximum concentration tmax(1.3±0.4) h,half-time period t1/2(4.2±0.5) h,and area under the concentration-time curve AUC(54.7±8.7) μg·h/L.A large quantity of mercury was found in the feces of the rats which were given cinnabar 12 h ago,and a small amount of mercury was still detected in the feces of the rats even after they were given cinnabar 96 h ago.In one word,the bioaccessibility of mercury in cinnabar is low.A small amount of mercury can be absorbed by body.However,it takes a long time to eliminate the absorbed mercury,and the excretion rate is slow.Thus long time use of cinnabar may cause toxicity owing to mercury accumulation.
Analisis Kualitatif Pengetahuan dan Faktor yang Mempengaruhi Terjadinya Benigna Prostate Hiperplasia (BPH) di Ruang Alamanda 1 RSUD Sleman

Benigna Prostate Hiperplasia adalah pembesaran pada kelenjar prostat sebagai akibat dari hyperplasia kelenjar prostat. Terjadinya pembesaran pada organ ini akan mengakibatkan penyumbatan pada uretra posterior sehingga aliran urin akan terhambat. Di Indonesia Benigna Prostat Hiperplasia terjadi pada 50% laki – laki yang merupakan penyakit di urutan kedua setelah batu saluran kemih yang. Tujuan dari penelitian ini adalah mengekplorasi secara mendalam tentang pengetahuan dan factor yang mempengaruhi terjadinya Benigna Prostate Hiperplasia (BPH). Penelitian ini merupakan penelitian kualitatif dengan pendekatan studi kasus. Penelitian ini dilaksanakan di Ruang Alamanda 1 RSUD Sleman pada bulan Januari – Februari 2019 dengan jumlah responden 5 orang. Pengumpulan data pada penelitian ini dengan in depth interview. Metode analisa data dengan melakukan pengkodean data yang dianalisis dijadikan tema. Pasien Benigna Prostate Hiperplasia (BPH) di ruang Alamanda RSUD Sleman terdiri dari laki – laki dengan mayoritas usia adalah elderly (60 - 74) tahun. Didapatkan tiga tema dalam penelitian ini yaitu Tema pertama tanda dan gejala pada pasien BPH yang bermunculan bervariasi seperti sakit pinggang, tidak bisa BAK dan adanya retensi urin, Tema kedua yaitu pasien membutuhkan informasi mengenai penyakitnya dari pelayanan kesehatan dan Tema ketiga yaitu munculnya pembesaran prostat dipengaruhi oleh factor predisposisi yaitu adanya kekambuhan, riwayat pekerjaan dan riwayat konsumsi makanan dan minuman
Analysis on the Chemical Constituents of Volatile Oil from Leaf of Prunus lannesiana Wils. by GC-MS

[Objective] To analyze the chemical constituents of volatile oil from leaf of Prunus lannesiana Wils.by GC-MS.[Method] Volatile oil from leaf of P.lannesiana was extracted by steam distillation and its chemical constituents were analyzed by GC-MS.[Result] Thirty-seven compounds,which occupied 93.04% of total constituents,were identified from volatile oil.The aldehydes,esters,and alcohols were dominant components and the content of benzaldehyde was the highest in the volatile oil. [Conclusion] The volatile oil containing many bioactive constituents could be further developed and utilized.
Influence of reduced electric field on the evolvement characteristics of plasma under conditions of N 2 /O 2 discharge

Adopting the plasma kinetic model, we perform a numerical calculation of evolution characteristics in N 2 /O 2 plasma with various reduced electric fields. The results show that there is an approximate linear relation between electron average energy and reduced electric field, the electron average energy is 2.6 eV and its maximum is 35 eV when reduced electric field is 100 Td, and reduced electric field has a strong influence on electron energy distributing function. The number densities of nitrogen molecules and atoms, oxygen atoms in electronic excited state reach their peaks when discharge is over, then drop off; but the number density of nitrogen molecules in vibrational excitation remains unchanged after discharge; oxygen atoms recombine into ozone molecules. With the increase of reduced electric field, the number density of vibration excitated nitrogen molecules reduces because of the decrease of the number of electrons with low energy, but other particles are increasing. The number densities of vibrational excitated nitrogen molecules are 3.83×10 11 cm -3 , 1.98×10 11 cm -3 and 1.77×10 11 cm -3 when reduced electric fields are set to be 50 Td, 75 Td and 100 Td respectively.
Assessment of Roughness of Fiber-reinforced Polymer Composite Wires and Other Coated Esthetic Archwires

Ab s t r Ac t Aim and objective: The objective of this study was to assess the roughness of three coated archwires and fiber-reinforced polymer composite wires “as received” and post-deflection. Materials and methods: The sample comprises 40 esthetic archwire segments (n = 10) with 0.018′′ size of epoxy-coated NiTi wire (G&H), optiflex (Ormco), rhodium-coated NiTi wires (American Orthodontics), and fiber-reinforced polymer composite wires (Biomers) were analyzed. The specimen was evaluated for roughness “as received” and each wire was deflected up to at a crosshead speed of 2.5 mm per minute in a universal test machine (Instron, model 4501). The evaluation of final roughness was done after a deflection on a similar aspect of wire. The comparison of roughness among the different wire brands before and after deflection was evaluated using a one-way ANOVA test. The statistically significant difference in roughness among the two groups was analyzed by Tukey’s honestly significant difference test (HSD). Results: Fiber-reinforced polymer composite wires showed mild roughness than epoxy-coated NiTi wire which showed increased roughness. ANOVA shows statistical significance among wire “as received” and post-deflection. Epoxy-coated NiTi exhibited significantly increased roughness among other groups “as-received” and after deflection (p = 0.011). Conclusion: The coating of the esthetic wire estimates the roughness of orthodontic wires, but it is determined by the coating method. The roughness is increased after a deflection in wires. Epoxy-coated wires showed significantly increased roughness in comparison with other esthetic archwires. Clinical significance: The roughness of the surface influences friction, color stability, and deterioration properties. It stipulates the stability of color in archwires, effectiveness of guided tooth movement over the archwire, and biocompatibility.
The investigation of electromagnetic processes in electromagnetic launchers using colossal magnetoresistance sensors

The development of rails and armatures which ensure a sliding solid-to-solid contact during the whole projectile acceleration is a great challenge in the field of railgun technology. Multifaceted physics exists at the sliding contact interface: The current concentrates at the rear of the interface due to magnetic diffusion processes and the fast armature movement. Consequently, Joule heating leads to enhanced wear in this region. In this dissertation, magnetic diffusion in railguns is investigated by means of measuring magnetic fields with CMR-B-scalar sensors at static and dynamic experimental conditions. These novel sensors, based on La0.83Sr0. 17MnO3 thin films exhibiting colossal magnetoresistance were adapted for the use at railguns. It was found that these sensors are effective tools to measure the magnitude of high pulsed magnetic fields independent of the field orientation. Magnetic field distributions influenced by proximity and velocity skin effect could be measured in the harsh railgun environment. The obtained results allowed to estimate the skin depth in the rails at the sliding interface of a fast moving armature (>1500 m/s). Furthermore experiments with fixed multiple brush armatures showed that front brushes can have contact problems in case of missing contact pressure. The dissertation consists of an Abstract, an Introduction, 6 chapters, General Conclusions, References, a List of Publications and 2 Appendices. The introduction reveals the investigated problem, the importance of the thesis and describes the purpose and tasks of the work. Furthermore, it presents the research methodology, the scientific novelty, the practical significance of results, the defended statements and the acknowledgement. Chapter 1 gives a literature review and introduces the field of railgun research and the idea behind this dissertation. Chapter 2 describes the experimental setups and main equipment. Chapter 3 deals with the CMR-B-scalar sensor and related metrological questions. The use of the sensor in static and dynamic coilgun experiments is presented in chapter 4. Chapter 5 deals with the investigation of magnetic diffusion and the current distribution in the rails of a railgun. Chapter 6 is about the current distribution in brush armatures. Seven articles focusing on the subject of the discussed dissertation have been published so far: Six articles in Journals listed in the Thomson ISI Web of Science and one article in the proceedings of an international conference. Seven presentations of the subject have been given at 5 international conferences.
Students’ Perceptions of a Designed Online Asynchronous Learning Activity Regarding the Community of Inquiry (COI) Framework

The COVID-19 pandemic situation has instigated a rapid shift in higher education with the adoption of online instruction or distance learning. This sudden change has forced instructors around the globe to transform or re-design offline courses to utilize online instruction. To effectively design an online course, the Community of Inquiry (CoI) framework has become key for distance learning over the past two decades. In this study, online learning modules were designed in an asynchronous environment for graduate students (N=9) during the second half of the Psychology for Teachers course. The online course content is organized into five modules. Each module includes four phases of learning activities with learning support. The four phases of the learning activities consist of engagement, exploration, group discussion, and individual writing tasks. After completing the course, a CoI survey was applied to investigate students’ perceptions of learning activities, covering three elements: Teaching; social; and cognitive presence regarding the CoI framework. The CoI survey results indicate that students were moderately positive towards the teaching, social, and cognitive presence of the CoI framework, while they were highly positive regarding certain aspects of each element. Additionally, the designed learning activities can reflect various dimensions of teaching presence, social presence, and cognitive presence within the CoI framework. The findings of this study can be utilized for the designation of an asynchronous online learning module embedded with learning activities that more effectively support the CoI framework.