Recombinant prolylcarboxypeptidase activates plasma prekallikrein

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/106127/1/jth03969.pd

Business Model Canvas Perusahaan Pengolah Rumput Laut

Winner Perkasa Indonesia Unggul is a SME that sells product based on seaweed processing. The enterprise is trying to improve their business activity on seaweed processing products. The purposes of this research are to identify the existing business model at the enterprise, to evaluate the model, and to generate a new business model prototype with the Business Model Canvas method analysis. This research is a case study on a company, and conducted in March-May 2016. The data used are primary data in the form of interviews and internal company data, while qualitative analysis used to evaluate the business model, and the SWOT analysis method used to help generating new business model prototype. The results of this research were two alternative of business model prototype for the enterprise's development in the future. The first alternative is trying to classify new customer segment, and followed by creating the new value proposition. With the additional of new customer segment and the new value proposition, it caused the enterprise to extend the channels by optimalizing technologies, and eventually increase the revenue stream of the enterprise. The second alternative is trying to increase the customer relationship by creating the new value proposition. It will raise the opportunity to make an alliance or partnership for helping the business activity of the enterprise. However, the changes on some parts of the business model will affect the enterprise's cost structure

DETERMINATION, ISOLATION, AND IDENTIFICATION OF AUCUBIN AND VERBASCOSIDE IN THE LEAVES OF IRAQI PLANTAGO LANCOLETA L. USING DIFFERENT DETECTING METHODS

Objective: Plantago lanceoleta L. (ribwort plantain) is one of the important medicinal herbs which is widespread fortune available in Iraq, that have a wide range of medicinal properties. The aim of this work was to determine, isolate and identify verbascoside and aucubin in Iraqi P. lanceoleta L. by using different chromatographic and spectrometric methods. Methods: Verbascoside and aucubin were isolated and quantified by preparative TLC, and then they were determined by the high-performance thin-layer chromatography (HPTLC) fingerprinting. Aucubin and catalpol in the plant extract were analyzed by liquid chromatography-mass spectrometry (LC-MS); aucubin and verbascoside that isolated from the plant sample were examined by fourier-transform infrared spectroscopy (FT-IR) and LC-MS, respectively. Results: The result showed that the Iraqi P. lanceoleta L. contains 1.74 percent (verbascoside) and 0.24 percent (aucubin) of dry powdered leaves. Each TLC-isolated compound showed a single spot on the HPTLC plate, which give an idea about the purity of the isolated compound. Aucubin (with catalpol) and verbascoside both are detected by LC-MS in different ionization mode. Many functional groups were identified in the TLC-isolated aucubin by FT-IR. Conclusion: The Iraqi P. lanceoleta L. showed a high content of verbasoside, and it is a very rich source for this compound, which can be easily isolated by TLC and subjected to many pharmacological studies. The extract of the young leaves of this plant gave a little amount of aucubin, and it is easy to obtain a higher content from the older leaves

Nanotechnology and supercritical fluids

Supercritical fluid (SCF) technology has become an important tool of materials processing in the last two decades. Supercritical CO2 and H2O are extensively being used in the preparation of a great variety of nanomaterials. The interest in the preparation and application of nanometer size materials is increasing since they can exhibit properties of great industrial interest. Several techniques have been proposed to produce nanomaterials using supercritical fluids. These processes, taking advantage of the specific properties of supercritical fluids, are generally flexible, more simplified and with a reduced enviromental impact. The result is that nanomaterials with potentially better performances have been obtained. We propose a critical review of the supercritical based techniques applied to the production of nanoparticles materials.Keywords: Supercritical fluids; Nanoparticles; SCF technology; RESS; SAS

Mapping the interaction between uPAR and high molecular weight kininogen

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/106070/1/jth03972.pd

Current Status of Market Mavens Research: A Literature Review

Despite the growth of empirical evidence in this field, little review research exists that assesses the theoretical aspects, marketing drivers, and consequences of market mavens. In this study, therefore, a systematic literature review (SLR) was utilized to perform a thorough analysis of market maven literature, encompassing articles published over 23 years on the Scopus and Web of Science indexed journals. It was found that the social and psychological aspects had not been widely explored and remained the weakest pillar. The results highlight that the theory of planned behavior has been the most commonly applied theory in the literature, as it has been used in six studies. Moreover, there is a very limited understanding of the existing literature's psychological and motivational characteristics and their role in cyber-market mavenism. To the best of the authors’ knowledge, this is the first SLR that addresses market maven literature. This research offers a comprehensive study agenda that focuses on various critical areas that need more consideration, such as the cultural role of market mavens and the differentiation between the roles of market mavens and non-mavens in sharing information on social network sites. Scholars might also look at the influence of the generational difference between people and whether or not placing an age or gender limit on people is important in terms of the nature of social networks. Doi: 10.28991/ESJ-2023-07-01-019 Full Text: PD

Effect of the thickness on the optical properties of nanostructure CuS thin films

At this work, nanostructure copper sulfide (CuS) thin films at different temperature of substrate and thickness (120,200,750) nm have been acquired by chemical spray pyrolysis method. The X-Ray Diffraction (XRD) measurements of all films appeared polycrystalline structure and possessed a hexagonal phase with strong crystalline orientation (103) with crystal size equals approximately 80 nm by using atomic force microscopy (AFM). The linear optical measurements showed that nanostructure CuS thin films have direct energy gap. The energy gap was decreased with increasing thin films thickness. Nonlinear optical properties experiments were performed using Q-switched 1064 nm Nd:YAG laser Z-scan system. The nonlinear refractive index (n2) and nonlinear absorption coefficient (?) were estimated at different thicknesses of nanostructure CuS thin films for different intensities of laser. n2 and ? were decreased with increasing intensity of incident laser beam . Also they were reduced with increasing the nanostructure CuS thin films thicknesses. Also the type of ? were two and three photon absorption , type of n2 were positive nonlinear reflective index and n2 were self-focusing nonlinear refractive index  for all samples

GAS CHROMATOGRAPHY-MASS SPECTROSCOPIC ANALYSIS OF BLACK PLUM SEED (SYZYGIUM CUMINI) EXTRACT IN HEXANE

Objective: Black plum seed has unique medicinal value and used as antidiabetics, antibacterial, and anti-inflammatory. Methods: Gas chromatography-mass spectrometry (GC-MS) analysis of the extracts of black plum seed obtained using solvent extraction with hexane as a solvent is used to attempt the identification of prominent components. Results: Black plum seed extract is obtained by solvent extraction technique using Soxhlet extractor. A total of 10 compounds are predicted in black plum seed extract by GC-MS analysis. Conclusion: The work presented relates to the study of GC-MS analysis of the extract of black plum seed obtained using solvent extraction with hexane as a solvent. Of ten compounds of black plum seed extract, five compounds are known to have antimicrobial properties