Media Contact Research Articles

Gender dan Masjid: Perspektif Reformulasi Komunikasi Islam Kontemporer

Functionally, the involvement of women in the context of Islamic broadcasting in mosques seems to increasingly exist. However, structurally female board is still far less than men. When women enter the stewardship of the mosque, there is an opportunity for women to communicate with male administrators in the preparation and realization of Islamic broadcasting programs in the mosque. Thus the function of the mosque as a medium of Islamic communication can be played in various aspects. The focus of this research is how women's involvement in Islamic broadcasting communication in mosque. The research method is field research with approach of sociology and communication of Islam, through interview and observation found in Masjid Raya Mujahidin Pontianak there is group of woman who initially active communicate Islam through majelis taklim, then appreciated to enter the management of mosque, then managed to make mosque as medium of communication of Islamic broadcasting . From this research found a new formulation in the activities of Islamic broadcasting communication in the mosque, the mosque became the center of Islamic broadcasting communication for women, the mosque as a medium of social contact of women, and the mosque as a medium of Islamic communication in family empowerment.

The Reflections on Media Literacy of College Students in the New Media

The college students can adapt the new media environment in the aspects of media contact consumption, media understanding comprehension and media application production very well. However, in view of their specific behaviors, they also have the questions: the weak ability to criticize the media, the not deep use of media and the weak moral and legal awareness. The emergence and existence of these problems have both objective and subjective reasons.

Effect of phospholipid coating on the migration of plasticizers from PVC tubes

Plasticizers in polyvinyl chloride (PVC) are not covalently bound to the polymer and can thus migrate into the contact medium. The presented study investigated the potential effects of phospholipid-lining as anti-coagulation coating (ACC) on the migration rate of plasticizers from PVC tubing into blood. For the in-vitro study, five different groups of tubing sets in six replicates were perfused with sheep blood (Group A: PVC plasticized with di-(2-ethylhexyl) phthalate (DEHP) without ACC, Group B: DEHP-plasticized PVC with ACC, Group C: PVC plasticized with tri-(2-ethylhexyl) trimellitate (TOTM) without ACC, Group D: TOTM-plasticized PVC with ACC, Group E (control group): polyolefin material with ACC but without plasticizers). Both the levels of the unchanged plasticizers in blood and the concentration levels of their primary degradation products were assessed. For DEHP, the primary metabolite MEHP (mono-(2-ethylhexyl) phthalate) was determined. The isomers of MEHTM (mono-(2-ethylhexyl) trimellitate) and DEHTM (di-(2-ethylhexyl) trimellitate), respectively, were investigated as primary metabolites of TOTM. The calculated DEHP equivalents (sum of determined levels of DEHP and MEHP) after 24 h of perfusion displayed a tendency towards lower levels in the tubing sets without ACC (Group A (201 ± 56.4 μmol/L)) compared to the tubing sets with ACC (Group B (253 ± 369 μmol/L)). Significantly different DEHP equivalents between Group A and Group B were found after a perfusion time of 6 h and 10 h, respectively. A similar effect was observed for the TOTM-containing tubing sets. However, the absolute plasticizer migration rate of TOTM (TOTM equivalents) after 24 h of perfusion was found to be significantly lower compared to that of DEHP (with a factor of over 200). The results indicate that phospholipid coating (ACC) rather enhances the migration of plasticizers and of their primary degradation products from PVC tubing into streaming blood. The enhancement effect was found to be slightly greater for TOTM, but as TOTM migrates in significantly lower levels than DEHP in all experimental settings, TOTM is confirmed to be a recommendable alternative plasticizer to DEHP in medical devices.

Psychiatry and the media

Aspects of print, broadcast, film and ‘new media’ are related to their interactions with psychiatry. Frequent representations of mental health issues are paralleled by the adoption of psychological theories into media studies. Key areas are covered where psychiatric items diverge from other medical specialities, such as the depiction of suicide, the dominance of ‘human interest’ stories and negative representation of people with mental illness. Although the language of mental disorders is important, the power of the image needs to be examined. Media items also have implications for public mental health (children as vulnerable viewers) and the clinical practice of psychiatry that are not uniformly negative. Television has limitations and clinicians are encouraged to participate in radio and other media. Resources and practical advice for media contact are provided.

Processors preference and effectiveness of extension teaching methods used by Raw Material Research Development Council for dissemination of shea butter processing technologies in Moro Local Government Area of Kwara State Nigeria

This study assessed shea butter processors preference and effectiveness of extension teaching methods used by Raw Material Research Development Council (RMRDC) for dissemination of improved processing technologies in Moro Local Government Area of Kwara state, Nigeria. Data were collected from 74 respondents selected through snow-ball sampling technique with a structured interview schedule and analysed using frequency count, percentages and means. The results show that all the processors were females between the ages of 31 and 50 years. About 70.3% of them were married whilst 52.7% had no formal education. Many of the processors had more than 11 years of experience in shea butter processing and were capable of making between ₦6,000 to ₦15,000 per month from sales of shea butter. The results also show that only group contact method was used for dissemination of improved processing technologies while group discussion was perceived to be very effective in acquiring skills hence it’s most preferred by the processors compared to other group teaching methods. It is therefore, suggested that individual and mass media contact methods be used along with the group contact method in teaching processors, as this will have the advantages of reaching different age and social groups, a situation that will make all groups access improved shea butter processing technologies. Keywords: Improved processing technologies, extension methods, shea butter, processors, Kwara State

Customer segmentation with purchase channels and media touchpoints using single source panel data

Abstract This study examines how customers use multiple channels and media in modern retail environments. It segments customers by using Latent-Class Cluster Analysis, which focuses on the purchase channels of bricks-and-mortar and online stores, media touchpoints of PC, mobile, and social media, and psychographic and demographic characteristics. It extends the framework of prior research by analyzing 2595 Japanese single source panelists’ data in which purchase scan panel data on low-involvement, more frequently purchased categories, media contact log data, and survey data are tied to the same ID. The analyses reveal seven segments including the properties of research shoppers and multichannel enthusiasts.

Role of electron filling in the magnetic anisotropy of monolayer WSe2 doped with 5d transition metals

Exploring magnetic anisotropy (MA) in single-atom-doped two-dimensional materials provides a viable ground for realizing information storage and processing at ultimate length scales. Herein, the MA of $5d$ transition-metal doped monolayer ${\mathrm{WSe}}_{2}$ is investigated by first-principles calculations. Large MA energy (MAE) is achieved in several doping systems. The direction of MA is determined by the dopant in-plane $d$ states in the vicinity of the Fermi level in line with previous studies. An occupation rule that the parity of the occupation number of the in-plane $d$ orbital of the dopant determines the preference between in-plane and out-of-plane anisotropy is found in this $5d$-doped system. Furthermore, this rule is understood by second-order perturbation theory and proved by charge-doping analysis. Considering relatively little research on two-dimensional MA and not sufficiently large MAE, suitable contact medium dopant pairs with large MAE and tunable MA pave the way to novel data storage paradigms.

Pore-expanded SBA-15 for the immobilization of a recombinant Candida antarctica lipase B: Application in esterification and hydrolysis as model reactions

Abstract A pore-expanded mesoporous silica (SBA-15) was investigated for the immobilization of a recombinant Candida antarctica lipase B (LIPB). The influence of contact time and medium pH during adsorption, as well as thermal and solvent stability of the immobilized enzyme were evaluated. The best prepared biocatalyst was then evaluated in a model esterification reaction, the production of two flavour esters (e.g. methyl and ethyl butyrate) and in a model hydrolysis reaction, the ethyl hexanoate hydrolysis. The biocatalyst maintained high activity and operational stability even after five successive cycles of synthesis. A commercial C. antarctica lipase B was also immobilized on SBA-15 and evaluated under the same conditions, achieving similar volumetric productivities. In addition, the biocatalyst SBA-15-LIPB was tested in ethyl hexanoate hydrolysis. The influence of reactional medium pH was conducted (pH 5, 7 and 9.2) and the highest biocatalyst activity was at pH 5 (about 636.3 U/genzyme). SBA-15-LIPB and SBA-15-LIPB-GA (crosslinked biocatalyst) were reused for 5 cycles, retaining, after the third cycle, 56.6 and 76.80%, respectively, of its initial activity. The prepared biocatalysts were able to catalyze the model reactions (esterification and hydrolysis) with high activity and reasonable stability.

Justification of Material Requirements of Contact Clarifier Media on Water Treatment Plants in Shtykovo

In the course of this paper we examined an active clarifier unit with contact media on the hydroelectric complex in Artem, Primorskiy Kray, as well as conducted the assessment of filter media qualitative parameters on the facility. To intensify the operation of the facility, it has been proposed to replace the filter media by the sand from the Pavlovskiy opencast colliery. The assessment of qualitative characteristics of the Pavlovskiy opencast colliery sand material has been made with the justification of its possible use as a filter material on water treatment plants.

Uranium sorption by native and nitrilotriacetate-modified Bangia atropurpurea biomass: kinetics and thermodynamics

In this study, the red alga Bangia atropurpurea was modified with nitrilotriacetate (NTA) ligand and used for removal of U(VI) ions from aqueous solution using native form as a control system. The modification of B. atropurpurea biomass was realized by sequential treatment of algal biomass with glutaraldehyde and NTA ligand. Influence of U(VI) sorption parameters, such as contact time, adsorbent amount, medium pH and ionic strength, initial U(VI) ions concentration, and temperature on the removal performance of both algal biomasses were studied from aqueous solution. The hydroxyl, amino, carbonyl, and carboxyl groups were the main adsorptive groups of the biomasses as observed in FTIR data, and these groups can bind to U(VI) ions via electrostatic interactions. More than 78% of total sorption took place within 40 min, and equilibrium was established about 60 min. Maximum sorption capacities of the native and NTA-modified algal biomasses were found to be 190.2 and 328.8 mg g−1, respectively, at pH 5.5 and at 30 °C. The presence of other ionic species slightly decreased the U(VI) sorption capacity except that in Fe(III) ions. The sorption processes of U(VI) on the algal biomasses were described by the Langmuir and Temkin isotherms and pseudo-second-order kinetic models. The thermodynamic parameters, such as ΔH°, ΔS°, and ΔG°, show that the process is exothermic and spontaneous. It should be stated that the NTA-modified algal biomass has a high potential for the removal of U(VI) ions from aqueous solution.

Conservation agriculture: A farm level practice in Bangladesh

Conservation agriculture (CA) is one of the alternative practices of agricultural development in Bangladesh. In the present study is investigated to determine the extent of practice of conservation agriculture by the farmers and to explore the factors related to practice of conservation agriculture. Eighty (80) farmers of four villages of Gurudaspur upazila of Natore district, Bangladesh were interviewed. Maximum farmers belonged to medium practice of conservation agriculture while very few of them had low or high practice. Zero tillage found to be the most practiced conservation technique. Out of nine independent variables, only level of education, extension media contact and organizational participation of the farmers had showed positive significant relationship with conservation agriculture practice. Extension media contact and organizational participation influence the extent of CA practices at farmers’ field as confirmed by the backward linear regression model. Growing more weeds in case of zero and/or minimum tillage and lack of available information about conservation agriculture at block level were the major problems hindering conservation agriculture practice. To popularize the CA practices, Government should organize more training and demonstration activities on CA involving block level extension workers as well as farmers plus strengthening research-extension-farmers linkage.

Spectroscopic Characterization and Nanosafety of Ag-Modified Antibacterial Leather and Leatherette.

The development of antibacterial coatings is of great interest from both industry and the consumer’s point of view. In this study, we characterized tanned leather and polyurethane leatherette, typically employed in the automotive and footwear industries, which were modified by photo-deposition of antibacterial silver nanoparticles (AgNPs). Material surface chemical composition was investigated in detail by X-ray photoelectron spectroscopy (XPS). The material’s antibacterial capability was checked against Escherichia coli and Staphylococcus aureus, as representative microorganisms in cross transmissions. Due to the presence of silver in a nanostructured form, nanosafety issues were considered, as well. Ionic release in contact media, as well as whole nanoparticle release from treated materials, were quantitatively evaluated, thus providing specific information on potential product nanotoxicity, which was further investigated through cytocompatibility MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assays, also after surface abrasion of the materials. The proved negligible nanoparticle release, as well as the controlled release of antibacterial ions, shed light on the materials’ potentialities, in terms of both high activity and safety.

Concern and death anxiety during an ongoing terror wave: The moderating role of direct vs. indirect exposure

ABSTRACTThe current study examined whether emotional concern over one’s security situation is connected with death anxiety during an ongoing terror wave, and whether type of exposure (media exposure vs. contact with witnesses) moderates this connection. A total of 345 individuals, aged 18–70, were sampled during an ongoing wave of terror in Israel and filled out scales measuring death anxiety, concern over security situation, and type of exposure. Results indicated that increased concern was connected with enhanced death anxiety. Moreover, this connection was more pronounced among individuals exposed to the events through the media, in comparison with individuals who had first-hand contact with witnesses.

Optimization of parameters with experimental design for the adsorption of mercury using polyethylenimine modified-activated carbon

Abstract This study reports a facile hydrothermal method to synthesize polyethylenimine-modified activated carbon derived from waste tires (PEI-AC). The obtained material was characterized by Fourier transform infrared spectroscopy (FTIR), Scanning Electron microscopy (SEM) equipped with Energy-Dispersive X-ray spectroscopy (EDX), Thermogravimetric analyzer (TGA), and Brunauer–Emmett–Teller (BET) analyzer. The adsorption efficiency of the new adsorbent for the removal of Hg(II) was evaluated under the effects of its concentration, temperature, adsorption contact time, medium pH and re-usability. The optimum experimental conditions were found under response surface methodology (RSM)using central composite design (CCD). The results of the study show very good adsorption performance and high regeneration efficiency; the adsorption data fitted well into pseudo-second order model. The Langmuir monolayer capacity was determined to be 16.39 mg g−1. The exothermic enthalpy change (ΔH) of −24.65 kJ mol−1 and negative Gibbs free energy change (ΔG) assured the viability of the adsorption process. Therefore, the material leverages its cheap source and ease of regeneration in combination with its high and fast uptake capacities to offer a great promise for wastewater remediation.

信息启动与人格特质对大学生自杀倾向的影响

通过招募获取被试60名(自杀倾向组30名，非自杀倾向组30名)，按种类随机分为实验组和控制组，采用2 × 2混合实验设计，分别进行自杀性质的图片和中性图片的信息启动后，测验两个组对自杀靶图再认的正确率与反应时，并对被试进行人格特质测验。探讨外部媒介信息刺激和内部人格特质对大学生自杀倾向的影响。结果发现(1)自杀倾向存在与否由人格特质决定，与接触媒介无关。(2)有自杀倾向的人与无自杀倾向的人在适应性、利他性、道德感三个维度有显著差异。较低的适应性、利他性和道德感所反应的人格特点在自杀倾向的建立过程中起到一定作用。 A group of 60 subjects (suicidal group 30, no-suicidal group 30) obtaining by the way of recruiting were randomly divided into experimental and control groups, using 2 × 2 mixed design, testing the two groups’ correct rate and the RT of the target suicidal pictures after information startup, and using “Big Five Personality Questionnaire” to test Personality trait of the subjects. The aim is to explore the influence of the internal stable characteristics and external information in the establishment of suicide tendency on college students. The results showed that (1) the existence or absence of suicidal tendencies was determined by personality traits and had nothing to do with the contact media. (2) There were significant differences in the three dimensions of adaptability, altruism and moral sense between the people with suicidal tendencies and those without suicidal tendencies. The personality characteristics of lower adaptability, altruism and moral sense play a role in the process of suicide ideation.

Study on Existing Technology and Knowledge on Aquaculture by Fish Farmers in Gomastapur Upazila of Chapai Nawabgonj District, Bangladesh

A total of 150 farmers from three unions in Gomastapur upazila under Chapai Nawabgonj district were selected for determination of their aquaculture technology and knowledge. In this study, 83% of the fish farmers were adopted with extensive technology and rest 17% with semi-intensive technology. The aquaculture knowledge consisted of 6 levels such as, remembering, understanding, analyzing, synthesizing, evaluating and creating. The aquaculture knowledge of the fish farmers on different aspect of pond fish culture practices such as, pond biology, pond preparation, species selection and stocking density, water colour monitoring, pond fertilization, feed and feeding, disease control, harvesting and restocking, risk management and marketing revealed that most of the fish farmers belonged to low knowledge category. A few portion of the fish farmers had high knowledge. Most of the fish farmers had relatively better score on the first two levels (remembering and understanding) of knowledge. The farmers had low score on the analyzing, synthesizing, evaluating and creating component of knowledge. Among the personal characteristics of the farmers’ education, extension media contact and aquaculture training experience were observed to be significant and positively related with their fisheries knowledge. But age, total income, religious affiliation and family size of the respondents had no relation with aquaculture knowledge.

Identifying and Analyzing Interactive Media Contact Points in Context of Fashion Brands

The transformation that fashion market has achieved in this period is phenomenal. Traditional marketing exists but is gradually losing the market share. Marketers and fashion brand managers are thus reconsidering the communication strategies from Digital Media perspective. The aim of this research is to develop and validate a measurement scale for understanding consumer’s perception of interactive media contact points in context of fashion brands. This research involves survey responses from 378 fashion consumers. A three dimensional 40-item scale was developed based on literature review and expert opinions. The study presents the complete process of scale development and validation suggested by DeVellis, 1991 as well as implications of the main findings.

Combined Approach for the Development of Efficient and Safe Nanoantimicrobials: The Case of Nanosilver-Modified Polyurethane Foams

Silver nanophases are routinely used as bioactive additives in commercial products. Besides their antimicrobial activity, nanosafety issues regarding the application of (silver-based) nanoantimicrobials should be considered, as well. In this study, we modified polyurethane foams, typically employed in air filtration and stuffing, by photodeposited silver nanoparticles for preparing hybrid materials (Ag-PU) with antibacterial properties. The composite materials were characterized in terms of morphology, surface chemical composition, ionic release in contact media, bioactivity, as well as whole nanoparticle release. Cytocompatibility was also assessed on 3T3 mouse fibroblasts. The proposed systematic approach allows for defining suitable composite final properties, in terms of bioactivity and safety, by properly tuning the deposition parameters.

Development of an efficient enrichment system for copper determination in water and food samples based on p-phenylenediamine anchored magnetic titanium dioxide nanowires

ABSTRACTIn the present work, titanium dioxide nanowires (TNWs) were synthesised via hydrothermal method. Insertion of ZnFe2O4 nanoparticles to the surface of TNWs was done by sol gel combustion synthesis of the nanoparticles in the presence of the nanowires. The surface of prepared magnetic TNWs was modified by p-phenylendiamine and then it was used in preconcentration of Cu2+ ion prior to their determination by flame atomic absorption spectroscopy. The sorbent was characterised by Fourier transform infrared spectra, EDX, FE-SEM and VSM techniques. We investigated and optimised various parameters influencing the preconcentration efficiency, such as the media pH, adsorbent quantity, contact time, sample volume and elution conditions. Under optimum conditions, the analytical performance of the method was evaluated. The calibration curve was found to be linear from 10.0 to 150 μg L−1 (R2 = 0.996). Calculated limit of detection was 0.43 μg L−1 (n = 5). The estimated relative standard deviation was 2.50% (n = 5). Moreover, the maximum adsorption capacity of the sorbent was 51.5 mg g−1 and preconcentration factor was 125. Capability of developed method was proved by applying it for preconcentration of Cu2+ ion from food and water samples.

Migration of copper from nanocopper/LDPE composite films

ABSTRACTThree nanocopper/low-density polyethylene (LDPE) composite films were tested in food simulants (3% acetic acid and 10% ethanol) and real food matrices (rice vinegar, bottled water and Chinese liquor) to explore the behaviours of copper migration using ICP-OES and GFAAS. The effects of exposure time, temperature, nanocopper concentration and contact media on the release of copper from nanocopper/LDPE composite films were studied. It was shown that the migration of copper into 10% ethanol was much less than that into 3% acetic acid at the same conditions. With the increase of nanocopper concentration, exposure time and temperature, the release of copper increased. Copper migration does not appear to be significant in the case of bottled water and Chinese liquor compared with rice vinegar with a maximum value of 0.54 μg mL−1 for the CF-0.25# bags at 70°C for 2 h. The presence and morphology of copper nanoparticles in the films and the topographical changes of the films were confirmed by field emission scanning electron microscope (FE-SEM) and atomic force microscope (AFM). In this manner, copper nanoparticles of different morphologies, sizes and distribution were found, and samples with higher nanocopper concentration had a more irregular topography. In the case of Fourier transform infrared spectroscopy (FTIR), no chemical bonds formed between copper nanoparticles and LDPE. Copper nanoparticles were just as physically dispersed in LDPE.