bluuebunny/crossref_metadata_2025 huggingface dataset:
Strategy for Improving Self-Efficiency and Organizational Climate in Efforts to Increase Employee Performance of PT. Indo Webhost Kreasi with Employee Engagement as Intervening Variable
Authors: Simbolon Eko Marabinkhak , Sinulingga Sukaria , . Iskandarini
Published: February 2022

Human resources will process other resources by using technology to achieve organizational goals. The objective of the research is to find out the influence of self-efficacy and organizational climate on employee engagement as intervening variables. The research employs a descriptive causal method with a quantitative approach. The population consists of all 74 employees and the data are analyzed by using a structural equation model with Smart PLS software program. The result of the calculation shows that self-efficacy has positive dan significant influence on employee performance. The result of the calculation shows that, indirectly, self-efficacy has a positive and significant influence on employee performance through employee engagement as the intervening variable can influence self-efficacy and organizational climate on employee performance. The variable of employee engagement has the most dominant influence on employee performance at the original sample of 0.500.

Keywords: self-efficacy, organizational climate, employee engagement, employee performance.
Simulation and Analysis of Propylene Coordination Polymerization Process Based on Aspen (polymer) plus
Authors: Jinjin Wang Jinjin Wang , Wangbin Chen Wangbin Chen , Manlin Zhang Manlin Zhang , Bin Pan Bin Pan , Xiaorong Wang Xiaorong Wang , Bin Wang Bin Wang
Published: February 2022

Based on the industrial conditions of coordination polymerization of polypropylene, Polymer plus was used to simulate and analyze the coordination process of propylene. The effects of the amount of propane, main catalyst (TiCl4), chain transfer agent (hydrogen), shielding gas (nitrogen), and monomer (propylene) on the number average degree of polymerization (DPN), the weight average degree of polymerization (DPW), the number average molecular weight (MWN), the weight average molecular weight (MWW), the polydispersity index (PDI), and the throughput of polypropylene were explored to guide actual production in this paper. Through analysis, the polymerization degree and molecular weight of polypropylene could be adjusted by hydrogen in actual production. The monomer (propylene) should be purified as much as possible to reduce the feed amount of propane. The increase of the propylene contributed to the molecular weight and polymerization degree of the product. The increase in the nitrogen feed amount had no effect on the product performance index. The feed amount of nitrogen could be adjusted as needed according to the actual equipment specifications. The catalyst has the greatest influence on the comprehensive performance index of the product, thus the amount of main catalyst TiCl4 must be strictly controlled.
Optimization and Modeling of Photooxidative Process for the Degradation of Reactive Red223
Authors: Abdul Rauf Shah Abdul Rauf Shah , Hajira Tahir and Tahira Yasmeen Hajira Tahir and Tahira Yasmeen
Published: February 2022

The optimization of the photooxidative process was carried out with the application of Response Surface Methodology (RSM) to degrade Reactive Red 223 (RR223) dye. Operational parameters of U.V/H2O2 process such as irradiation time, initial [dye], initial [H2O2] and distance between U.V lamp and the solution were optimized with Central Composite Design (CCD). Correlation coefficient value of the CCD was obtained to be 79 %, showing the correctness of the model and the successful utilization of CCD in getting desired levels of the factors of the process. Moreover, the optimum points were located with the graphical surface and contour plots. At the optimal conditions, the photooxidative removal of the color and COD were observed to be 68%, 81%, respectively. Furthermore, the pseudo-second order kinetic was guiding the removal of the dye in the process. Subsequently, the electrical energy consumption was estimated in term of the merit electrical energy per order (EEO). The figure of merit of the process was found to be 252 kWhm−3 order−1. The cost of the treatment was also calculated to be US$ 25/m3.
Structural, Topographical and Optoelectronic Properties of ZnIn2S4 Thin Films Deposited from Dual Source Using Aerosol Assisted Chemical Vapour Deposition (AACVD) Technique
Authors: Umar Daraz Umar Daraz , Tariq Mahmood Ansari Tariq Mahmood Ansari , Shafique Ahmad Arain Shafique Ahmad Arain , Muhammad Adil Mansoor and Muhammad Mazhar Muhammad Adil Mansoor and Muhammad Mazhar
Published: February 2022

The ZnIn2S4 (ZIS) thin films have been successfully developed from a homogeneous toluene solution of dithiocarbamate complexes of zinc and indium with formula [Zn(S2CNCy2)2(py)] (1) and [In(S2CNCy2)3].2py (2) via aerosol assisted chemical vapor deposition (AACVD) technique. Deposition experiments were carried out at 500oC in an inert atmosphere of argon gas on FTO substrate. The X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM) and Raman spectroscopy have been used for the determination of phase purity, surface topography of the uniformly distributed particles and oxidation states of the elements present in thin films. Further UV-visible spectrophotometry elucidates that the thin films absorbs in entire visible region and give estimated band gap energy of 2.37 eV. The photoelectrochemical (PEC) response in terms of linear scan voltammetry (LSV) provides a photocurrent density 2.27 mA.cm-2 at 0.7 V vs Ag/AgCl/3M KCl using 0.05 M sodium sulphide solution under AM 1.5 G illumination (100 mW.cm-2). The LSV results are further reinforced by electrochemical impedance spectroscopy (EIS) that gives charge transfer resistance (Rct) value of 5.7 x 104 Ω under dark conditions and reduces to 3.7 x 104 Ω under illumination.
A Comparative Evaluation of Chlorogenic Acid Content and Antioxidant Activity in Artichoke (Cynara scolymus L.) Samples Under Different Storage Conditions
Authors: Tuba Mert G nen Tuba Mert G nen , H sniye Kayalar and Munir zt rk H sniye Kayalar and Munir zt rk
Published: February 2022

Artichoke has been used for a long time in the traditional medicine against dyspeptic complaints and as a liver protector due to its choleretic and cholagogue effects. Chlorogenic acid, the main ingredient of artichoke is known to show hepatoprotector, anticancer, anti-obesity and antioxidant activities. In this study, antioxidant activity and chlorogenic acid quantification were performed using the samples of artichoke as fresh, boiled, frozen, boiled frozen, canned, fresh leaf and dry leaf. Potential antioxidant activity was evaluated using DPPH assay. Flavonoid and phenolic contents were determined by Aluminum chloride colorimetry and Folin-Ciocalteu methods. The amounts of colorogenic acid in the samples were determined by HPLC-DAD system. The results have shown that highest chlorogenic acid content was determined in the 10-minute frozen-boiled sample (0.01441 mg/100g), followed by canned (0.01043 mg/100g), 20-minute cooked artichoke (0.001912 mg/100g), fresh artichoke (0.001519 mg/100g) and frozen artichoke (0.0004 mg/100g). The antioxidant activity results have revealed that highest % DPPH capture effect was observed in the cooked artichoke sample (ED50 =1.949 mg/ml). The total flavonoid content was equivalent to quercetin (43.859 mg QE/100g) whereas total phenolic content equalled to gallic acid (14.640 mg GAE/100g). The antioxidant activity and the amounts of colorogenic acid were found to be the highest in the cooked artichoke sample whereas the lowest antioxidant activity observed in canned artichoke. The results show that the heat treatment applied for storage can positively affect the amount of chlorogenic acid and antioxidant activity.
Recent Development of Enhanced Polymeric Blend Membranes in Gas Separation: A Review
Authors: Asim Mushtaq Asim Mushtaq , Hilmi Mukhtar and Azmi Mohd Shariff Hilmi Mukhtar and Azmi Mohd Shariff
Published: February 2022

Natural gas is the most rapid growing energy sources around the world. The presence of CO2 in natural gas lowers its calorific value and purification of a natural gas by removing CO2 is an essential process to increase its value. Several separation technologies are used to remove acidic gases like H2S and CO2 from natural gas. Among these technologies, membrane process is a feasible energy saving alternate to CO2 capture. The three types of membrane include polymeric, inorganic and mixed matrix membranes. Currently, polymer membranes and inorganic membranes were considered for gas separation, but inorganic membranes are too costly. Even mixed matrix membrane performance suffered defects caused by poor glassy polymer and particle interactions. Pure glassy and pure rubbery are problematic due to their instructive properties. The blending of glassy with rubbery polymers improve membrane properties for gas separation. To enhance the compatibility of the polymer blend, a third component is added such as alkanol amines. Although, the enhanced polymeric blend membranes have many advantages in terms of permeance, selectivity, thermal and chemical stability. Polymer blending also offers an effective technique to synthesize membranes with desirable properties.
Evaluation of Trans Fat in Vermicelli by Fourier Transform Infrared Spectroscopy in Combination with Chemometric Technique
Authors: Sarfaraz Ahmed Mahesar Sarfaraz Ahmed Mahesar , Taimoor Hassan Shaikh Taimoor Hassan Shaikh , Zahid Hussain Shar Ghulam Abbas Kandhro Zahid Hussain Shar Ghulam Abbas Kandhro , Abdul Rauf Khaskheli and Syed Tufail Hussain Sherazi Abdul Rauf Khaskheli and Syed Tufail Hussain Sherazi
Published: February 2022

Since there is limited knowledge about trans fat levels in snack foods available in Pakistan. This study aimed to determine trans fat content in fried vermicelli (a common snack food). It is prepared in partially hydrogenated oil (ghee), which is the main cause of trans fat formation. Twenty-one fried vermicelli samples were collected from different local shops of Hyderabad, Pakistan and subjected to oil extraction by using Soxhlet method. Partial least square regression model was developed to quantify trans fats in fried vermicelli using FTIR spectroscopy. Total oil content in fried vermicelli ranged between 17.28- 32.99%. FTIR results revealed that fried vermicelli showed trans fats in between 7.3-20.9% in extracted oil, whereas total trans fat in food was ranged at 1.3-5.9%. The FTIR data of trans fat was compared with GC-MS data and found comparable results (pandgt;0.05). Presence of high trans fat in fried vermicelli is an alarming issue for the health of consumers.
A 1H-Benzotriazole Derivative Nucleated Poly(L-lactic acid): Thermal Behavior and Physical Properties
Authors: Li Sha Zhao and Yan Hua Cai Li Sha Zhao and Yan Hua Cai
Published: February 2022

In this study, a 1H-benzotriazole derivative, N, Nand#39;-bis(1H-benzotriazole) succinic acid acethydrazide (SABHA), was synthesized to nucleate Poly(L-lactic acid) (PLLA). A series of comparative studies on the melt-crystallization, the cold-crystallization, the melting behavior, the thermal stability, as well as the fluidity between the pure PLLA and PLLA/SABHA were performed. The melt-crystallization behavior revealed that the SABHA as a heterogeneous nucleating agent could significantly facilitate the crystallization of PLLA, and a larger amount of SABHA concentration exhibited the better nucleation effect. However, for the cold-crystallization process, the crystallization peak shifted toward the lower temperature with increasing of SABHA concentration. The melting behavior after crystallization at different crystallization temperatures showed that the melting process of PLLA/SABHA samples depended on the crystallization temperature, and the appearance of the double melting peaks was attributed to the melt-recrystallization. The thermal decomposition profile of PLLA was not affected by SABHA, but the addition of SABHA reduced the thermal stability of PLLA. Fortunately, the presence of SABHA improved the fluidity of PLLA, and the effect of SABHA concentration on the fluidity was positive.
A New Phloroglucinol Derivative from Syzygium brachyantherum
Authors: Meng Jia Li Meng Jia Li , Wen Xu Wen Xu , Feng Li Feng Li , Shao Hua Xu Shao Hua Xu , Yan Zhao Yan Zhao , Yi Kao Hu and Yong Zhao Yi Kao Hu and Yong Zhao
Published: February 2022

A new phloroglucinol derivative, (Z)-1-(2,4-dihydroxy-6-methoxy phenyl) -octadec-9-en-1-one (1), along with a known analogue, 1-(2,4,6-trihydroxyphenyl)-1-hexadecanone (2), were isolated from the leaves of Syzygium brachyantherum. Their structures were elucidated on the basis of the spectroscopic data and comparison with the values reported. To the best of our knowledge, this is the first example of the constituents from S. brachyantherum.
The Difference of Serum Protein Transport between Echinosides and Verbascoside
Authors: Ming Guo Ming Guo , Xiaoxue Zhao Xiaoxue Zhao , Peter E Brodelius Peter E Brodelius , Ling Fang Ling Fang , Zhihong Sun and Rui Wang Zhihong Sun and Rui Wang
Published: February 2022

Verbascoside (VER) is the enzymatic hydrolysis product of echinacoside (ECH). The molecular structures of ECH and VER have different glucosyl groups so they bind to serum albumin in different ways, resulting in different pharmacological actions. In this report, we have examined the binding characteristics between human serum albumin (HSA) and ECH/VER by molecular modeling and spectroscopic approaches. Molecular modeling revealed that VER bound to HSA mainly through hydrogen bonds, van der Waals forces and hydrophobic forces. The spectroscopic results showed that the interactions between HSA and VER/ECH involved a static binding process, and the bonding strength of the VER-HSA complex was stronger than that of the ECH-HSA complex. The value of the binding distances (r) was low, which indicated the occurrence of energy transfer. The reaction conformational pattern of HSA-VER and HSA-ECH gave a “two-state model” based on fluorescent phase diagram analysis. According to the thermodynamic model, the main forces between interaction of VER and HSA were hydrogen bonds and van der Waals forces, whereas the interaction between ECH and HSA was hydrophobic force. The fluorescence polarization analysis demonstrated that the interaction between HSA and VER or ECH generated a non-covalent complex. Compared with ECH, VER was more likely to bind with HSA because of its smaller molecular size and low polarity. The results of the spectral analysis concurred with the molecular modeling data, which provides a helpful reference for the study of the molecular reaction mechanism of VER/ECH binding to HSA.
Synthesis of Nʹ-Nicotinoyl Sulfonohydrazides and their Antimicrobial Activity
Authors: Zarina Arshad Zarina Arshad , Sumayya Saied Sumayya Saied , Basharat Ali Basharat Ali , Uzma Salar Uzma Salar , Saima Tauseef Saima Tauseef , Arshia Arshia , Munazza Ajaz Munazza Ajaz , Uroosa Khan Uroosa Khan , Syed Moazzam Haider Syed Moazzam Haider , Muhammad Taha Muhammad Taha , Khalid Mohammed Khan Khalid Mohammed Khan
Published: February 2022

Nʹ-Nicotinoyl sulfonohydrazide derivatives 3-13 were synthesized from nicotinyl hydrazide and evaluated for their antimicrobial potential against Gram positive bacterial strains (Bacillus cereus, Bacillus subtilis, Corynebacterium diphtheriae, Staphylococcus fecalis, Staphylococcus aureus, and MRSA (Methicillin-resistant Staphylococcus aureus)) and Gram negative bacterial strains (Escherichia.coli, Pseudomonas aeruginosa, Salmonella ParatyphiB, Salmonella tyhpi). Compound 13 showed outstanding antibacterial activity against Staphylococcus fecalis and compounds 7 and 13 were found to be moderately activite against Salmonella Paratyphi B, shown by their zone of inhibition values. In addition to that compond 9 also showed moderate activity against Escherichia coli. All derivatives 3-13 were also subjected for the evaluation of their antifungal activity against Saccharomyces cerevisiae, Microsporum canin, Rhizopus, Aspergillus niger, Candida albicans, and Candida tropicalis. Compound 13 showed promising antifungal activity against Rhizopus sp. and compounds 9 and 10 showed moderate antifungal potential against Microsporum canis, Aspergillus niger, and Candida tropicalis. Other molecules demonstrated weak zone of inhibitions.
Synthesis, Crystal Structure and Antitumor Activity of 3-(2,4-dichlorophenyl)-2-phenyl-5-(p-tolyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine
Authors: Jin Liu Jin Liu , Juan Zhao Juan Zhao , Jiu fu Lu Jiu fu Lu
Published: February 2022

The title compound, 3-(2,4-dichlorophenyl)-2-phenyl-5-(p-tolyl)- 7-(trifluoromethyl)pyrazolo[1,5-a] pyrimidine (C26H16Cl2F3N3, Mr = 498.32) has been synthesized by condensation of 4,4,4-trifluoro-1-(p-tolyl)butane- 1,3-dione with 4-(2,4-dichlorophenyl)-3-phenyl-1H-pyrazol-5-amine. The latter was prepared from 2,4-dichlorophenylaceton itrile and ethyl benzoate through Claisen condensation and then cyclization with hydrazine hydrate. The crystal structure of the title compound was determined. In addition, the title compound possesses marked inhibition against the proliferation of human lung adenocarcinoma cell line A549 and human gastric cancer cell line MKN45, displaying promising anticancer activities.
Synthesis and Characterization of CuMnOx-Bentonite as Efficient Catalyst for Oxidation of m-xylene
Authors: Mo Thi Nguyen Mo Thi Nguyen , Cam Minh Le Cam Minh Le , Tuan Minh Nguyen Tuan Minh Nguyen , Hao Hoang Nguyen Hao Hoang Nguyen , Anwar ul Haq Ali Shah Hung Van Hoang Anwar ul Haq Ali Shah Hung Van Hoang
Published: February 2022

Catalytic oxidation of organic volatile compounds (VOCs) is considered superior to conventional methods because very low concentration of VOCs can also be oxidized and removed at low temperatures without consumption of addditional fuel and introduction of NOx compounds into the environment. Herein, the synthesis of MnO2 nanoparticles on bentonite (Bent) support in the presence of CuO for catalytic oxidation of m-xylene is reported. The synthesized materials were analyzed with FT-IR, XRD, and TEM analysis for structural and morphological characterization. XRD and TEM analysis indicated the formation of δ-MnO2 with sheet structure on Bent surface. Temperature-programmed reduction (H2-TPR) of hydrogen was used to investigate catalytic performance of δ-MnO2 towards oxidation of m-xylene at different temperatures. The catalytic activity was strongly dependent on the δ-MnO2 content in the synthesized material. 100 % oxidation of m-xylene with observed with 10% Mn content at temperature below than 325 oC. Intersetingly introduction of CuO greatly improved the catalytic activity of Mn-Bent materials. The presence of Cu in Mn-Bent has greatly reduced the temperature for complete oxidation of m-xylene. In this case100% conversion of m-xylene was observed at 250 oC.
Synthesis, In Vitro Antioxidant and Antimicrobial Activities of Some New 2-(3-Alkyl/Aryl-4,5-dihydro-1H-1,2,4-triazol-5-on-4-yl-azomethine)phenyl Benzenesulfonate Derivatives
Authors: zlem G rsoy Kol zlem G rsoy Kol , Haydar Y ksek Haydar Y ksek , G l zdemir G l zdemir , Sevda Manap Sevda Manap , Sezen Buluttekin Selcan G k e and Muzaffer Alkan Sezen Buluttekin Selcan G k e and Muzaffer Alkan
Published: February 2022

Eight new 2-(3-alkyl/aryl-4,5-dihydro-1H-1,2,4-triazol-5-on-4-yl-azomethine)phenyl benzenesulfonates (3) were obtained by the reactions of 3-alkyl(aryl)-4-amino-4,5-dihydro-1H-1,2,4-triazol-5-ones (1) with 2-benzenesulfonyloxybenzaldehyde (2). Moreover, eight N-acetyl derivatives (4) of compounds 3 were obtained. Then, seven new 2-[1-(morpholine-4-yl-methyl)-3-alkyl/aryl-4,5-dihydro-1H-1,2,4-triazol-5-on-4-yl-azomethine)phenyl benzenesulfonates (5) were obtained by the reactions of compounds 3 with formaldehyde and morpholine. The structures of twenty-three newly synthesized compounds were established from infrared, 1H-NMR, 13C-NMR, MS and UV spectral data. In addition, 3, 4 and 5 type compounds were examined for their in vitro potential antioxidant and antibacterial activities. Three different methods were used for the antioxidant assay and the compounds 5 showed a significant activity for iron-binding. Antimicrobial activity was determined on six bacteria using the agar well diffusion method
Biodegradation of Novacron Turqueiose (Reactive Blue 21) by Pseudomonas aeruginosa
Authors: Muhammad Ikram Muhammad Ikram , Muhammad Zahoor Muhammad Zahoor , Ezzat Khan and Sahibzada Muhammad Umar Khayam Ezzat Khan and Sahibzada Muhammad Umar Khayam
Published: February 2022

In the present study four bacterial strains Escherichia Coli, Salmonella typhi, Shiegella and Pseudomonas aeruginosa were used to evaluate their dye decolorization/degradation ability. Out of these bacterial strains Pseudomonas aeruginosa exhibited high potential for selected dye decolorization and hence it was used in subsequent experiments. The effect of dye concentration, pH, temperature, time, glucose and sodium chloride concentrations on decolorization were also studied to determine the optimal conditions required for maximum decolorization/degradation of selected dye by Pseudomonas aeruginosa. Maximum decolorization was observed at: 0.01 mg/L dye concentration, pH 10, temperature 45and#176;C, 0.1 mg/L glucose concentration, 0.1 mg/L sodium chloride concentration and 3 days incubation period at 37and#176;C. The metabolites formed after degradation by selected bacteria at optimum conditions were isolated and characterized by FTIR and mass spectrometry. In the mass spectra molecular ion peak was not observed and it was difficult to draw a conclusion from it. However, FTIR spectra provided some valuable information. The peaks at 1301.8 cm-1 for C-N and 1231.5 cm-1 for O-H stretch observed for original dye were completely absent in the decolorized products. The disappearance of C-N (part of the porphyrin ring system) peak in FTIR spectra shows that the porphyrin ring has been destroyed by bacteria. The extensive fragmentations in the mass spectra also confirm the degradation of the dye parental structure.
The Cycle Destruction during Complex Formation of 4-salicylideneamino-3-hydrazino-5-mercapto-1,2,4-triazole with Ni (II) ions
Authors: Perizad A Fatullayeva Perizad A Fatullayeva , Ajdar A Medjidov Ajdar A Medjidov , Idayat M Mamedov Idayat M Mamedov , Pavel V Dorovatovskiy Pavel V Dorovatovskiy , Jan V Zubavichus Jan V Zubavichus , Victor N Khrustalev Victor N Khrustalev , Rayyat Huseyn Ismayilov Rayyat Huseyn Ismayilov
Published: February 2022

Using single crystal X-ray diffraction method, it was shown that the interaction of 4-salicylideneamino-3-hydrazino-5-mercapto-1,2,4-triazole with Ni (II) acetate yields a complex of nickel with salicylidene-thiosemicarbazone instead of the expected complex with the corresponding Schiff base. A possible mechanism of hydrolysis of the thiotriazole ring is proposed. The N- (salicylidene) thiosemicarbazone is a tridentate and almost flat structure ligand coordinates to the nickel (II) cation through thiosemicarbazone sulphur, phenolic oxygen, and azomethine nitrogen atoms. The nickel (II) ion in the complex is four-coordinated in distorted square-planar geometry. The intermolecular hydrogen bonds N─H∙∙∙N, as well as hydrogen bonds N─H∙∙∙O, O─H∙∙∙O and O─H∙∙∙S through the solvate water molecules, give rise to the 3-D network of the complex [Ni(TSC)((NH2)2CS)]•H2O.
Modified Zinc Oxide Nanoparticles for Corrosion Resistance Applications
Authors: Ali Dad Chandio Ali Dad Chandio , Muhammad Hamza Saleem Muhammad Hamza Saleem , Hasan Raza Khan Hasan Raza Khan , Iqra Naeem Hyder and Maryam Ali Iqra Naeem Hyder and Maryam Ali
Published: February 2022

Atmospheric corrosion is a big threat to the steel structures. This is because it compromises its structural integrity, aesthetic aspects and overall efficiency. An attempt has been made to counteract this through surface engineering of substrates including glass and steel by using modified zinc oxide nanoparticles to increase hydrophobicity. The synthesis of zinc oxide nanoparticles is carried out by using sol-gel method, thereafter these particles were modified by using stearic acid; a fatty acid. The zinc oxide nanoparticles were characterized by using X-ray diffraction analysis (XRD) which confirms the presence of hexagonal wurtzite structure. Moreover, the Scanning Electron microscopy (SEM) reveals the hexagonal wurtzite morphology of as prepared nanoparticles. Fourier transform infrared spectroscopy (FTIR) confirms the grafting of stearic acid on the surface of ZnO in bidentate form. The water Contact Angle obtained by using sessile drop method gives a statistical value of 140o which is of great interest due to higher water repellency and lower surface contact area. Finally, corrosion test was carried out on the coated steel substrate by means of conventional corrosion testing technique and it is observed that the coated sample decays three times slower than that of its bare steel counterpart.
Application of UV-Visible Spectrophotometric Method for the Estimation of Ciprofloxacin HCl and Levofloxacin Hemihydrate (Antibiotics) in Marketed Drugs
Authors: Mir Munsif Ali Talpur Mir Munsif Ali Talpur , Tajnees Pirzada and Muhammad Afzal Arain Tajnees Pirzada and Muhammad Afzal Arain
Published: February 2022

Ciprofloxacin HCl, 1-Cyclopropyl-6-fluoro-4-oxo-7-(piperazin1-yl)-1,4-dihydroquinoline-3-carboxylic acid, is a synthetic broad antibacterial compound belonging to the group of fluoroquinolones which is antimicrobial drug act through the inhibition of DNA-gyrase, an enzyme that is critical to bacterial chromosome replication. It is used in a wide range of infections of the urinary, respiratory and gastrointestinal tracts, as well as in skin structure and ocular infections. Levofloxacin Hemihydrate is a fluoroquinolone, has a broad-spectrum antibiotic activity against gram-positive and gram-negative bacteria and used in respiratory and urinary tract infections. Various Pakistani branded antibiotic drug samples containing Ciprofloxacin HCl and Levofloxacin Hemihydrate were collected from local market and their working standards from the material suppliers of Karachi city. Samples were analyzed by using UV-Vis spectrophotometer. Then the method was validated by linearity, accuracy, precision (reproducibility, intermediate precision) and range which suggested that method is appropriate and proper to determine the potency of these various brands of Ciprofloxacin HCl and Levofloxacin Hemihydrate. The analytical data suggest that the drug samples analyzed were within the limit of the Pharmacopeia requirement and criteria.
Experimental and Theoretical Studies of 2- (naphthalen-1-yl (piperidin-1-yl) methyl)phenol Compound
Authors: Yeliz Ula Yeliz Ula
Published: February 2022

The 2- (naphthalen-1-yl (piperidin-1-yl) methyl) phenol compound is an alkylaminophenol compound and has been experimentally synthesized by the Petasis reaction. In this study Structural analysis was carried out by FT-IR, NMR, UV-Vis spectroscopy. The high antioxidant value of the compound showed that it could be a potential biologically active drug. Theoretical data support all experimental analysis of the new compound. Comparisons were made by double method. For this purpose, DFT (B3LYP) and HF methods have been used with 6-311G ++ (d, p) set. Also, the compoundand#39;s electronic and structural properties (bond lengths, bond angles and dihedral angles), the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) energies, electrostatic potential (MEP), vibrational frequencies, Mulliken atomic charges, excitation energies, and oscillator strengths were calculated. As a result; the theoretical and experimental values were found to be compatible.
Molecular Imprinted Graphene Oxide Nanocomposite for Optical Sensing of Nicotine in Human Blood Plasma
Authors: Sehrish Qazi Sehrish Qazi , Huma Shaikh Huma Shaikh , Ayaz Ali Memon Ayaz Ali Memon , and Shahabuddin Memon and Shahabuddin Memon
Published: February 2022

Among all psychotropic alkaloids, nicotine is more addictive, carcinogenic and capable of causing many health problems. This work is based on the development of highly robust, cheap, reliable, selective and sensitive nicotine imprinted graphene oxide nanocomposite (ImpGO nanocomposite) based optical sensor for determination of nicotine in human plasma. The ImpGO nanocomposite has been thoroughly characterized using different techniques i.e. FT-IR, SEM, TEM, Raman, etc. These characterizations revealed that ImpGO nanocomposite is comprised of single layer of graphene oxide successfully modified with imprinted polymer. The synthesized material was utilized to selectively determine nicotine using UV-vis spectrophotometer in BR buffer of 0.1 M at pH 3 and diluted human plasma. The effect of parameters such as buffer concentration, pH, amount of nanocomposite, etc on determination of nicotine using ImpGO nanocomposite were studied thoroughly. Thus, a sensitive optical method was developed for determination of nicotine in human plasma with linear range of 22-370 pM along with LOD and LOQ of 7 pM and 22 pM, respectively. The selectivity of sensor was evaluated using homologues of nicotine such as nicotine amide, caffeine and cotinine. The results obtained from biological samples showed that developed optical sensor is efficient in complex matrices of real sample.
Should tranexamic acid be used for 3 days after total knee replacement? A randomized study in 250 patients
Authors: Shah Nilen , Khetan Vatsal , Sivanadan Hari
Published: February 2022

The aim is to study whether a 3 day course of Tranexamic acid (TXA) is more effective in reducing blood loss following a TKR than a 1 day course. 250 patients were prospectively randomised into Group A (n=138; Perioperative and additional oral TXA for two days) and Group B (n=112; only perioperative TXA). Total Blood loss was calculated by the Haemoglobin (Hb) loss method at 4 days and compared in both groups using Mann Whitney test. The mean peri- operative blood loss in group A was 631.69 ± 264.99 ml as compared to 685.55 ± 239.033 ml in group B (p=0.0434). Use of TXA for 3 days following a TKR can be more effective in reducing blood loss.
Morel-Lavallée lesion associated with atypical skin damage: a case report
Authors: Luisetto Matteo , Legrand Anaïs , Vandromme Emile , Boulares Sofiane , Delahaut Olivier
Published: February 2022

A Morel-Lavallée lesion is a post-traumatic, soft tissue lesion that is little known and for which there is no standard treatment.

This report describes the case of a 51-year-old man who presented with a large Morel-Lavallée lesion on the left calf that was not diagnosed on two visits to the emergency department. Given the deteriorating condition of the skin, we performed surgical drainage of the effusion because the skin was showing signs of major damage. Complications occurred following surgery, with cellulitis in the lower limb caused by Citrobacter Koseri, a gram-negative bacillus that is rarely implicated in soft tissue infections, and wound dehiscence.

The purpose of our article is to present the difficulty involved in choosing the right treatment from among the many proposed in the literature, and to inform any practitioner working in an emergency setting about the existence of this often overlooked condition.
the PENATALAKSANAAN FISIOTERAPI PADA PENDERITA GANGGUAN NYERI AKIBAT SINDROM PIRIFORMIS DENGAN TEKNIK STRAIN COUNTERSTRAIN DAN CONTRACT RELAX STRETCHING DI KELURAHAN PEKAPURAN RAYA KOTA BANJARMASIN
Authors: NAFI'AH NAFI'AH
Published: February 2022

Continuous use of muscles can  may caused hyperactively muscle activity which eventually induced pain and muscle spasm in the lower back area to the backside. In addition, muscle spasm  may lead pressure on the nerves to generated swelling, inflammation, and symptoms of nerve irritation. One of the nerve irritations that often results from muscle spasm is piriformis syndrome. Piriformis syndrome is a musculoskeletal condition characterized by pain in the waist, lower back to the backside upper lower limbs that results from shortening or spasm piriformis obtained compression of the sciatic nerve. As a result of these problems, the authors conducted a study to determine the management of physiotherapy using Strain Counterstrain technique and Contract Relax Stretching in reducing pain due to Piriformis syndrome. This research was conducted in the Kelurahan Pekapuran Raya of Banjarmasin City using a case study method with a visual analog scale (VAS) and Brief Pain Inventory Questionnaire (BPI). The results of the study are Strain Counterstrain and Contract Relax Stretching for 12 times therapy in 4 weeks can reduce pain disorders in the condition of Piriformis syndrome.
PENATALAKSANAAN FISIOTERAPI PADA GANGGUAN NYERI AKIBAT CARPAL TUNNEL SYNDROME DENGAN MODALITAS ULTRASOUND DAN CARPAL BONE MOBILIZATION DI RUMAH SAKIT BHAYANGKARA TK. III BANJARMASIN
Authors: Azizah Nila Nur , Putri Maulida Wijaya , Hamzah Arfian
Published: February 2022

ABSTRAK

Carpal tunnel syndrome (CTS) merupakan salah satu gangguan ekstremitas atas yang disebabkan oleh penyempitan pada terowongan karpal sehingga terjadi penekanan terhadap nervus medianus yang terletak pada pergelangan tangan. Gangguan yang terjadi pada kasus ini adalah nyeri, penelitian ini bertujuan untuk mengetahui efek dari Ultrasound dan carpal bone mobilization dalam menurunkan nyeri pada kasus carpal tunnel syndrome. Metode penelitian ini menggunakan case study yang membahas satu kasus secara mendalam. Penelitian ini diukur dengan menggunakan Visual Analogue Scale (VAS) untuk mengetahui penurunan nyeri saat sebelum dan sesudah dilakukan terapi. Hasil dari penelitian ini didapatkan bahwa terdapat penurunan nyeri setelah dilakukan terapi..
PENATALAKSANAAN FISIOTERAPI UNTUK GANGGUAN FUNGSIONAL LUMBAL PADA KASUS HERNIA NUKLEUS PULPOSUS DENGAN TEKNIK PNF, TENS DAN MCKENZIE EXERCISE DI RSUD ULIN BANJARMASIN TAHUN 2019
Authors: Dwi Winda Yasinta , M Mu'jizatillah , Fauziah Enny
Published: February 2022

Hernia Nucleus Pulposus (HNP) adalah kondisi dimana terjadi protrusi pada diskus intervertebralis karena cedera atau beban mekanik yang salah dalam waktu yang lama. Tujuan penelitian ini adalah untuk mengetahui penatalaksanaan fisioterapi pada kondisi HNP dan apakah ada peningkatan fungsional lumbal setelah diberikan intervensi fisioterapi berupa Transcutaneus Electrical Nerve Stimulation (TENS), Proprioceptive Neuromuscular Facilitation (PNF), dan McKenzie Exercise. Penelitian ini menggunakan metode case study dengan menggunakan satu sampel pasien HNP. Treatment dilakukan sebanyak 12 kali dalam kurun waktu 6 minggu. Alat ukur untuk mengetahui gangguan aktivitas fungsional lumbal yaitu Oswestry Disability Index (ODI). Hasil penelitian yang didapatkan setelah dilakukan evaluasi yaitu adanya peningkatan aktivitas fungsional lumbal setelah diberikan intervensi TENS, PNF dan Mckenzie Exercise.
Calculation Of Radiation Dosage Value In Patients Based On Android Application
Authors: Japeri Japeri , Saifi Saifi , Persadha Galih , Zaini Muhammad
Published: February 2022

Salah satu sifat sinar-x yang paling merugikan adalah sinar-x tidak dapat dilihat dengan mata, sinar-x merupakan radiasi pengion dan sinar-x dapat merubah jaringan tubuh. Radiasi sinar-x, disamping memberikan manfaat yang sangat besar juga berpotensi memberikan efek merugikan, proteksi radiasi merupakan aspek yang sangat penting dalam pengendalian efek merugikan oleh sebab itu setiap instalasi nuklir dan unit radiologi harus memperhatikan proteksi radiasi untuk melindungi pekerja radiasi dan masyarakat umum. Tetapi untuk saat ini uji pemantauan dosis perorangan dengan rencana TLD hanya dilakukan untuk pekerja radiasi dengan rentang waktu pertiga bulan sedangkan untuk pasien belum adanya pemantauan dosis padahal proteksi tidak hanya menyangkut pada pekerja tetapi juga pasien oleh sebab peneliti tertarik melakukan penelitian terkait “Perhitungan Nilai Batas Dosis Radiasi Pada Pasien Berbasis Aplikasi Android. Penelitian ini bertujuan untuk mengetahui pemantauan dosis radiasi pada pasien sehingga dikemudian hari tidak terjadi nilai batas yang tidak melebihi nilai ambang. Jenis penelitian ini Kuantitatif dengan pendekatan Research And Development
Description of Rhodamin B Content in Tomato Sauce In Meetball Skewers Seller on Kapten Pierre Tendean Banjarmasin
Authors: Anshari Muhammad Rashif , Fitriadi Agus , Wirayudha Rahmat
Published: February 2022

Bahan tambahan pangan (BTP) bahan yang sengaja ditambahkan ke dalam pangan yang mempunyai atau tidak mempunyai nilai gizi.Rhodamin b bahan berbahaya yang sering dicampurkan pada saos tomat. Menurut laporan BPOM Banjarmasin tahun 2018, hasil pengujian terhadap komoditi tersebut masih menunjukkan bahwa beberapa produk menggunakan bahan berbahaya yang dilarang digunakan untuk pangan salah satunya adalah pewarna Rhodamin b. Oleh karena itu diperlukan penelitian untuk mengetahui adanya Rhodamin b dalam saos tomat yang dijual di Jalan Kapten Pierre Tendean  Banjarmasin. Tujuan penelitian ini adalah untuk mengetahui  ada tidaknya kandungan rhodamin b  pada saos tomat pedagang bakso tusuk Jalan Kapten Pierre Tendean Banjarmasin. Penelitian ini menggunakan metode penelitian deskriptif kualitatif. Sampel diambil secara total sampling dari 15 pedagang bakso tusuk yang terletak di Jalan Kapten Pierre Tendean Banjarmasin, sampel yang didapat lalu diuji di laboratorium lalu dilakukan pemeriksaan Rhodamin b menggunakan metode KLT. Berdasarkan hasil penelitian, sampel tidak terbentuknya bercak warna merah saat dilihat langsung dengan mata dan menggunkan sinar UV  tetapi nilai Rf nya sama dengan nilai standart rhodamin b sehingga hasil penelitian dinyatakan negatif. Dengan demikian saos tomat yang terdapat di Jalan Kapten Pierre Tendean Banjarmasin tidak mengandung pewarna berbahaya Rhodamin b.
PENATALAKSANAAN FISIOTERAPI UNTUK MENGURANGI VERTIGO PADA PENDERITA BENIGN PAROXYSMAL POSITIONAL VERTIGO (BPPV) DENGAN TEKNIK SEMONT LIBERATORY MANEUVER DI KELURAHAN SUNGAI ANDAI KOTA BANJARMASIN
Authors: Mu'jizatillah Mu'jizatillah , Risa Addini Nurul , Fauziah Enny
Published: February 2022

Benign Paroxysmal Positional Vertigo (BPPV) adalah gangguan vestibular yang paling sering menyebabkan vertigo. BPPV dapat diartikan sebagai vertigo yang terjadi akibat perubahan posisi kepala secara tiba-tiba. Semont Liberatory Maneuver dapat mengurangi vertigo pada BBPV. Semont Liberatory Maneuver bertujuan untuk memindahkan otolit dari dalam area sensitif telinga sehingga dapat mengurangi gejala vertigo.  Tujuan dari penelitian ini adalah untuk mengetahui penatalaksanaan fisioterapi menggunakan Semont Liberatory Maneuver dalam mengurangi vertigo terhadap penderita BPPV. Penelitian ini menggunakan metode case study dengan sampel tunggal dengan alat ukur vertigo symptom scale-short form (VSS-sf). Dari hasil penelitian didapatkan hasil semont liberatory maneuver yang dilakukan sebanyak 8 kali selama 8 hari berturut-turut dengan intensitas 4x pengulangan selama 15 menit dapat menurunkan vertigo pada kondisi BPPV. Saran kepada peneliti selanjutnya untuk mencari tahu efek lain dari semont liberatory maneuver selain untuk menurunkan frekuensi vertigo pada BPPV.
KARAKTERISTIK PENYEBAB PERDARAHAN POST PARTUM PRIMER PADA IBU BERSALIN
Authors: Puteri Mahfuzhah Deswita
Published: February 2022

Kematian ibu disebabkan oleh perdarahan setiap tahunya paling sedikit 128.000 perempuan mengalami perdarahan hingga mengakibatkan kematian dan lebihdari separuh jumlah seluruh kematian ibu terjadi dalam waktu 24 jam setelah melahirkan. Mengetahui karakteristik penyebab perdarahan postpartum primer di Puskesmas Tanjung Karang. Metode survey deskriptif dengan pendekatan cross sectional. Populasi dalam penelitian ini semua ibu ibu bersalin yang mengalami perdarahan di Puskesmas Tanjung Karang dari bulan Januari sampai dengan bulan Desember Tahun 2015 sebanyak 68 orang. Teknik pengambilan sampel yang digunakan adalah teknik sampel jenuh / total sampling sehingga semua populasi digunakan sebagai sampel. Pengumpulan data dilakukan dengan menelusuri hasil register rekapan persalinan puskesmas Tanjung Karang Tahun 2015. Analisa data dilakukan dengan menggunakan analisis univariat. Hasil penelitian menunjukkan bahwa dari 68 responden, sebagian besar berusia 20-35 tahun yaitu sebanyak 54 orang (79,4%) dan sebagian besar responden berusia 20-35 tahun sebanyak 24 orang (44,4%) mengalami perdarahan dikarenakan Atonia Uteri. Sebagian besar paritas ibu primipara sejumlah 32 orang (47,1%) dan sebagian besar responden berada pada paritas primipara mengalami perdarahan dikarenakan Atonia Uteri sebanyak 16 orang (50,0%). Faktor penyebab perdarahan post partum yang paling banyak yaitu atonia uteri sebanyak 32 orang (47,1 %) dan yang paling sedikit yaitu robekan jalan lahir sebanyak 4 orang (5,9%) dari 68 sampel. Karakteristik penyebab perdarahan post partum yang paling banyak yaitu atonia uteri dan yang paling sedikit yaitu robekan jalan lahir, berusia 20-35 tahun dan paritas primipara. Saran agar lebih meningkatkan pelayanan secara profesional dengan lebih memberikan penyuluhan secara intensif, KIE, leaflet atau brosur tentang faktor penyebab perdarahan post partum primer
Tinjauan Kelengkapan Pengisisan Formulir Informed Consent Pada Pasien Bedah Rawat Inap Di Rumah Sakit Sari Mulia Banjarmasin Triwulan Ke-Iv Pada Tahun 2020
Authors: Anshari Muhammad Rashif , Maisyarah Putri , Risnawati Risnawati
Published: February 2022

Kelengkapan pengisian infomed consent sangat penting karena akan mempengaruhi aspek hukum rekam medis dan mutu rekam medis sehingga dalam pelaksanaannya harus dilakukan secara maksimal.  Penelitian ini bertujuan untuk mengetahui kelengkapan pengisian informed consent pasien bedah rawat inap Triwulan ke-IV Tahun 2020 di Rumah Sakit Sari Mulia Banjarmasin. Penelitian ini menggunakan penelitian kuantitatif deskriftif dengan rancangan penelitian cross sectional, metode yang digunakan adalah metode observasi dengan memakai alat bantu check list. Pada penelitian ini, teknik pengambilan sampel dengan random sampling, jumlah sampel ada 141 rekam medis pasien bedah rawat inap yang dianalisis, dan seluruhnya masih belum lengkap. Hasil penelitian diperoleh rata-rata angka kelengkapan pengisian berdasarkan review identitas 100%, review catatan yang penting 46,8%, review autentifikasi 90,7%, review catatan yang baik 68%. Dimana Kelengkapan tertinggi pada review identitas yaitu 100% dan kelengkapan terendah ada pada review catatan yang penting yaitu 46,8%. Berdasarkan hasil penelitian dapat disimpulkan bahwa angka kelengkapan pengisian lembar informed consent pasien bedah rawat inap di Rumah Sakit Sari Mulia Banjarmasin Triwulan ke-IV Tahun 2020 belum mencapai SPM rekam medis di rumah sakit yaitu 100%.
Nanosuspension as an emerging Nanotechnology and Techniques for its Development
Authors: Chakravorty Runa
Published: February 2022

Low bioavailability is one of the major concerns associated with drugs which show poor aqueous solubility. The problem is even more complex for drugs belonging to BCS class II as classified by BCS classification system, showing poor solubility in both aqueous and nonaqueous media such as drugs like carbamazepine, itraconazole etc. Nanosuspension, a novel technology has shown its potential to be a promising alternative to solve these problems concerning solubility. A nanosuspension is a formulation of the poorly water-soluble drug without any matrix material suspended in dispersion. It is a simple technique and applicable to all drugs which are water insoluble. Apart from improving solubility and bioavailability, nanosuspension also alters the pharmacokinetics of drug and of the nanosuspension.
Investigating the Applicability of the Newtonian Gravity Concept Inventory to First Year College Students
Authors: Bani-Salameh Hisham , Subahi Ahmad , Alharbi Sami H. , Adegaither Nouf , Awawdeh Mufeed , Alamoudi Dalal , Alamoudi Reem
Published: February 2022

We report on a study of our students’ understanding of gravity using the Newtonian Gravity Concept Inventory (NGCI). This article is supposed to serve two purposes: as a proof of applicability of the test to first year medical students outside the United States and as a general survey of our students’ understanding of gravity. The motivation for this work came initially from students’ misconceptions of gravity and related topics noticed in classrooms. NGCI has 26 multiple-choice questions probing students’ knowledge of gravity in four different domains: Directionality, Gravity as a force, Independence from other forces and threshold. Results confirmed weak overall performance of the 684 students participated in this study (average score of only 38.48%) with misconceptions related to gravity in all four domains. We were able to prove the applicability of the NGCI to our students through calculations of Classical Test Theory statistics and Cronbach’s alpha. We got a Cronbach’s alpha of 0.68, average difficulty index of 0.62 and average discriminatory index of 0.31 with three questions reported as too difficult based on the acceptable range. The test was given to students twice; before and after any gravity-related instructions in class (pre- and post-test). Post-test results will not be discussed here and left for future articles. In this article, we present the pre-test results and compare it to the original work by the authors of the test on astronomy and physics students.
”Det er sjovt, hvor forskellige man er, selvom man er ens med sin skilsmisse” – En undersøgelse af børns oplevelser med samtalegrupper for skilsmissebørn
Authors: Rose Pernelle
Published: February 2022

I denne artikel undersøger jeg børn med skilte forældres erfaringer med at deltage i en samtalegruppe. Jeg kigger nærmere på variationerne i børnenes forskellige måder at tale om deres liv med skilsmissen. Gennem et etnografisk inspireret feltstudie, der bygger på 23 børneinterviews samt seks måneders observationer i fire samtalegrupper på Sjælland i Danmark, udforsker jeg, hvordan børn i skilsmisse skaber mening i deres deltagelse i samtalegrupperne. Herunder, hvordan børns forskelligheder bliver opfattet af de professionelle, og på hvilke måder der skabes mulighed for at udfordre de dominerende forståelser af, hvad det vil sige at leve et hverdagsliv med skilsmisse. I artiklen træder det tydeligt frem, at børns generelle skilsmisseoplevelser varierer bredt og får forskellige implikationer for deres deltagelsesmuligheder.
English abstract
”It’s funny, how different you are, even though you have divorce in common” – children’s perspectives on conversation groups in school
In this article, I explore the importance of participating in a conversation group for children who are living with divorce in their everyday life. I take a closer look at the variations in the children’s different ways of expressing their lives with divorce. Through an ethnographically inspired field-study based on 23 children’s interviews and six months of observations in four conversation-groups in Zealand, Denmark, I explore how children in divorce make sense of their participation in conversation groups. This includes how the professionals meet the children’s differences, and which opportunities the children have to challenge the dominant understandings of what it means to live an everyday life, as a child of divorced parents. The article documents broad variations in children’s experiences of a life with divorced parents and reveals the strong implications that these variations have for their possibilities for participation.