Commercial Channel Research Articles

Evaluation of cone beam computed tomography videos on Youtube

Purpose: Cone beam computed tomography (CBCT) is an imaging modality that plays an important role in dental practice. However, it is unclear whether videos with adequate and accurate information are available on a platform such as YouTube. The aim of this study was to determine whether CBCT videos posted on YouTube are indeed a valuable source of information. Methods: During the data collection process, we analyzed Google Trends searches using the keywords "cone beam computed tomography (in Turkish)", "dental tomography (in Turkish)", and "tooh tomography (in Turkish)" over the last 5 years. Then, 168 videos were analyzed as a result of searches on YouTube with these keywords. Among these videos, 48 were included in the study according to certain criteria. The number of view, viewing times, number of like, interaction index and viewing rate of the included videos were calculated. The upload source of the videos was categorized as clinic, dentist, educational channel, commercial, professional organization and TV channel. According to the upload source of the videos, the image quality, sound quality, narrator, purpose of the video, usefulness scoring and Global Quality Scale were evaluated. Results: The average number of views of the analyzed videos was determined as 1559.95, while the standard deviation value was determined as 2435.30. The average interaction index was 1.58, and the standard deviation value was 1.77. The average view rate was 377.55, and the standard deviation value was 956.88. Significant relationships were found between the upload source of the videos and the duration of the video, the number of subscribers of the channel that uploaded the video, and the number of likes (p=0.016, p=0.021, p=0.030, respectively). In addition, when the videos were evaluated in terms of their usability levels, significant relationships were found between the duration of the video, the number of likes, and the interaction index (p=0.001, p=0.009, p=0.015, respectively). Conclusion: This study reveals that CBCT videos posted on YouTube are generally of low quality and not informative. This highlights the need for reliable sources of information for dentists, patients, and future dentists.

Simultaneous multinuclear MRI via a single RF channel

Magnetic resonance imaging (MRI) stands as one of the most powerful noninvasive and non-destructive imaging techniques, finding extensive utility in medical and industrial applications. Its ability to acquire signals from multiple nuclei grants it additional levels of strength by providing multi-dimensional datasets of the object under test. However, this typically requires dedicated hardware to detect each nucleus. In this paper, we report on the use of a digital lock-in amplifier to perform simultaneous multi-nuclear MRI with a single physical radio frequency (RF) channel. While we showcase this concept by demonstrating the results of fully parallel (TX and RX) 1H and 19F MRI images, we emphasize that it is not limited to two nuclei but can accommodate more nuclei with no extra cost on the hardware or scan time. The scalability is virtually unlimited, constrained only by the processing speed of the digital unit. Furthermore, we demonstrate that the quality of parallel imaging with SNR of 54 is comparable to the commercial single channel with SNR of 43. Thus with no reduction in imaging quality, the proposed concept promises a tremendous reduction in scan time, system complexity, and hardware costs.

The Great Tea Road and the Formation of the Community of the Chinese Nation

The Great Tea Road is another important international commercial and cultural channel connecting China to the world that has emerged on the Eurasian continent after the decline of The Silk Roads. It is the result of the prosperity and development of economic globalization since the 16th century. The Chinese National Community is a national community of economic interdependence and cultural compatibility formed by the people of all ethnic groups in China during the long-term historical development. As an important part of The Belt and Road Initiative, The Great Tea Road is the product of the integrated development of Chinese cultural identity and national economy, the concentrated embodiment of the consciousness of Chinese National Community, and an important medium to convey the Chinese nation's concept of friendly economic and cultural exchanges with other countries and to build a community with a shared future for mankind. It is of great significance to explore the value and realization path of The Great Tea Road to the formation the sense of community for Chinese nation for the using of The Great Tea Road as a heritage site and the promotion of economic and cultural cooperation among cities in countries along the route through tea culture as a medium.

Online Trust Determinants, Consumer Perception, and Purchase Intent in Saudi E-Commerce: Exploring Determinants and Evidence

This study aimed to explore the growing use of the internet as a commercial sales channel, emphasising the pivotal role of trust in online consumer relationships. This research focused on Saudi e-commerce platforms (e.g. Amazon.sa, Noon, Namshi, and Shein), due to their remarkable growth over previous years, by investigating the effect of consumer trust on online purchase intentions. The study surveyed 449 Saudi online shoppers, using a structural equation model to analyse the factors that determine online trust (perceived information quality, company competency, security, and online consumer reviews) and their influence on consumer online trust and perceived risk. The results revealed significant relationships between consumer online trust and perceived information quality, company competency, and security, challenging expectations regarding the link between online consumer reviews and consumer online trust. Surprisingly, online consumer reviews primarily influenced perceived risk rather than consumer online trust, impacting purchase intention to a limited extent. The research underscores the substantial influence of consumer online trust on perceived risk and purchase intention, offering micro perspectives on online consumer behaviour. By identifying key influences, including information quality and security, this study provides theoretical and managerial insights for e-commerce platforms, guiding the development of responsible online channels. KEYWORDS company competency, consumer reviews, e-commerce antecedents, information quality, perceived security, Saudi consumers

Efficiency, Margin And Channel Analysis Corn (Zea mays L.)

The development of corn crops that began in the 1990s is considered by many parties to have brought significant changes to improve the welfare of farmers. For Indonesia, corn is the second food crop after rice. Even in some places, corn is the main staple food substitute for rice or as a mixture of rice. The research was conducted in Sumber Lor Village, Babakan District, Cirebon Regency, from January to March 2023. This study aims to find out: (1) The size of corn trading margin in Sumber Lor Village, Babakan District, Cirebon Regency and, (2) The efficiency of corn trading channels created in Sumber Lor Village, Babakan District, Cirebon Regency. The research design used in this study is a quantitative method, with a survey approach, with a sample of 42 farmers, 9 collecting traders, 3 wholesalers and 7 retailers. The data collected are primary data and secondary data that have to do with the research problem. The resulting data is analyzed descriptively and statistically. Descriptive analysis is used to determine the channel of commerce and the function of tataniaga. While statistical analysis is used to determine trade margins and to determine corn farming analysis. The results showed that: (1) The largest trade margin was in marketing channel II which was Rp. 2,550 per kg and the smallest in commerce channel I which was Rp. 1,945 per kg, and (2) The efficiency of corn trading in trade channels I and II was efficient, with a value of tatangiaga efficiency of 6.78% and 9.47%, (3) There were two systems of commerce channels corn in Sumber Lor Village, Babakan District, namely Farmers - Collecting Traders - Retailers - Consumers, and Farmers - Collecting Traders - Wholesalers - Retailers - Consumers, and (4) The efficiency of corn trading in trade channel I is more efficient than commercial channel II. The shorter the configuration channel, the more efficient the value. Because the longer the commercial channel, the more costs are incurred.

Fusion of EEG and Eye Blink Analysis for Detection of Driver Fatigue.

The driver fatigue detection using multi-channel electroencephalography (EEG) has been extensively addressed in the literature. However, the employment of a single prefrontal EEG channel should be prioritized as it provides users with more comfort. Furthermore, eye blinks from such channel can be analyzed as the complementary information. Here, we present a new driver fatigue detection method based on simultaneous EEG and eye blinks analysis using an Fp1 EEG channel. First, the moving standard deviation algorithm identifies eye blink intervals (EBIs) to extract blink-related features. Second, the discrete wavelet transform filters the EBIs from the EEG signal. Third, the filtered EEG signal is decomposed into sub-bands, and various linear and nonlinear features are extracted. Finally, the prominent features are selected by the neighbourhood components analysis and fed to a classifier to discriminate between fatigue and alert driving. In this paper, two different databases are investigated. The first one is used for parameters' tuning of proposed method for the eye blink detection and filtering, nonlinear EEG measures, and feature selection. The second one is solely used for testing the robustness of the tuned parameters. The comparison between the obtained results from both databases by the AdaBoost classifier in terms of sensitivity (90.2% vs. 87.4%), specificity (87.7% vs. 85.5%), and accuracy (88.4% vs. 86.8%) indicates the reliability of the proposed method for the driver fatigue detection. Considering the existence of commercial single prefrontal channel EEG headbands, the proposed method can be used to detect the driver fatigue in real-world scenarios.

Brand equity in digital marketing: what does it mean in the health sector and how does it affect consumer decisions?

Businesses are trying to achieve efficiency in marketing by using digital channels consisting of internet, social media and mobile platforms. The increase to be seen in the annual turnover of an enterprise, as well as the awareness of the brand, the interaction with the customers shows the brand equity. In other words, tangible and intangible assets are also related to brand equity. Here, the power of influence in the market, the customer's perception of value and brand loyalty are seen as factors affecting the situation. As a general concept, the health sector is the formation that deals with individuals and organizations that involve all phases from the production of health-related goods and services to consumption. It is formed by the decision of the consumer in the stages consisting of five steps taken up in the decision-making process of the consumer who needs a service or product. The aim of this study is to try to determine how consumers in the health sector have an effect on the decision-making process in order to understand the value that the consumer shows about a product or service about a business in digital marketing, which is the most important commercial shopping channel of today. In this direction, in order to obtain the necessary information about the field, data were collected from internet users in Istanbul using a Google form. These data were analyzed by applying t test and Anova test in SPSS system. As a result, a positive result has been reached as the effect of brand equity on consumer decision making in the health sector. It has been concluded that consumers give more importance to digital marketing channels and that this area should be more focused on in the health sector.

Photoinduced Carbene for Effective Photodynamic Therapy Against Hypoxic Cancer Cells

Photoinduced Carbene for Effective Photodynamic Therapy Against Hypoxic Cancer Cells

First Live Production and Transmission of Immersive Audio on Commercial OTA Digital Television in Latin America

Since 2017, Globo Television has been testing and evaluating immersive audio systems to use on over-the-air (OTA), pay TV, and streaming services to increase the user experience of our viewers and listeners, giving a sense of “being there” and exploring off-screen sound information, especially on live events. From that point until the present experimental content has been produced, some experimental transmissions made via streaming services, over-the-top (OTT), and OTA. This was done in collaboration with representatives from industrial and academic sectors in a regulatory committee. In 2020, a reviewed standard NBR 15602–2—the audio coding part of Brazil’s Digital TV standards—was published, which included immersive audio systems as optional. In September 2020, immersive audio was delivered on an OTA commercial channel in São Paulo, reaching more than 17 million people. Dolby Atmos audio service was used in the transmission with no negative impact on legacy receivers. This innovation presents live immersive audio transmissions across an entire workflow, from venue microphone audio capture, through an audio production chain, and extending from the exhibition center to TV transmission.

Analisis Efisiensi Saluran Tataniaga Biji Pinang Kering di Kecamatan Kuala Kabupaten Nagan Raya

The purpose of this study was to determine the pattern of commerce and efficiency of the business channel of dried betel nut in Kuala District, Nagan Raya Regency. Data were collected by conducting direct interviews with farmers, small collector traders (PPK), and large collector traders (PPB). Data analysis uses Structure, Conduct, and Performance approaches. The overall market structure in the betel nut business process in Kuala District tends to lead to a monopsony market structure. Seeing that the number of sellers and buyers is not balanced, the betel nut business system in Kuala District is inefficient, because it refers to the monopsony market structure. Of the three commercial channels, the most efficient commercial channel is channel I because it has the lowest margin value and the highest farmer's share so that from the farmer's side, the share of prices received by farmers is quite large.

Mobile phone user’s attitude toward SMS advertising

Mobile Advertising, a wireless media, acts as an advertising tool for promoting goods and services. The mobile phone is no longer just a communication tool since it has also become a commercial channel of products and services. Many companies are currently using mobile Advertising as a potential marketing tool and have a profound influence on day-to-day business activities. So the present work is to study the attitude and behaviour of mobile phone users toward SMS ads and their effectiveness as an advertising tool for various products and services. The primary data was collected using a questionnaire consisting of demographic factors and other factors like entertainment, credibility, and monetary benefit relevant to this study. The collected data was analyzed using Statistical tools. The results show that most of the respondents favour receiving SMS ads if their preferences are taken into consideration. Their attitude was favourable if advertisements were sent with permission which implies that permission-based advertising is a major mechanism in the field of mobile phone advertising.

Performance Study on the Effect of Coolant Inlet Conditions for a 20 Ah LiFePO4 Prismatic Battery with Commercial Mini Channel Cold Plates

Rechargeable Li-ion batteries are widely used in renewable energy storage and automotive powertrain systems, and therefore, an efficient thermal management system is imperative for maximum battery life and safety. Battery heat generation and dissipation rates primarily depend on the battery surface temperatures, which are affected by the coolant system design and coolant inlet conditions. In this paper, a two-way coupled electrochemical-thermal simulation with selected experimental validation has been performed and analyzed the effect of water coolant inlet conditions on the effectiveness of commercial mini-channel cold-plates for 20 Ah LiFePO4 prismatic batteries. Three coolant inlet temperatures (25–45 °C) and four flow rates (150–600 mL/min) are tested at three different discharge rates (2–4 C) and the performance of coolant system design has been analyzed in terms of battery peak (maximum) temperature and temperature difference (i.e., non-uniformity) across the battery. The predicted results indicate that the coolant flow rate has a profound effect on the battery temperature non-uniformity, while the coolant inlet temperature has a significant effect on the battery peak temperature. At high coolant flow rates, the battery surface temperature difference is within the acceptable range (ΔT < 5 °C), but the maximum temperatures are high at all discharge rates. Further, at the low coolant inlet temperature of 25 °C and the high coolant flow rate of 600 mL/min, the battery temperature rise at the top and bottom locations during the constant current discharge process is high, indicating that the battery heat generation rate is high at a low coolant inlet temperature.

Navigating Radiation Therapy During COVID-19 Using YouTube as a Source of Information.

The COVID-19 pandemic brought considerable change to the practice of radiotherapy. In the meantime, patients are increasingly turning to online resources for health information, with YouTube being one of the biggest platforms. However, little is known about what information is being disseminated to cancer patients about radiotherapy in the context of COVID-19. Therefore, this study aims to characterize and assess YouTube videos on radiotherapy during COVID-19. A YouTube search using the terms “Radiation therapy COVID-19”, “Radiation therapy coronavirus”, “Radiotherapy COVID-19”, and “Radiotherapy coronavirus” was completed using a clear-cache web browser. The top 50 videos were collected from each search. After applying pre-determined exclusion criteria, each video was assessed for general parameters, source, and content. Two raters were used to ensure interrater reliability. One hundred five unique videos resulted from the four searches. Ninety-eight per cent were published in the last year. The median video length was 6 min and 54 s, and the median number of views was 570. Most videos were from the USA (58%). The majority of videos were published by a commercial channel (31%), non-profit organization (28%), or healthcare facility (26%). Forty-two per cent of the videos covered a topic related to radiotherapy during the pandemic. Bias was identified in 6% of videos. YouTube information on radiotherapy during COVID-19 is non-specific and can be misleading. The results of this study highlight the need for healthcare providers to proactively address patient information needs and guide them to appropriate sources of information.

Development and Characterization of a Micromagnetic Alternative to Cochlear Implant Electrode Arrays.

To stimulate the auditory nerve, cochlear implants directly inject electrical current into surrounding tissue via an implanted electrode array. While many cochlear implant users achieve strong speech perception scores, there remains significant variability. Since cochlear implant electrode arrays are surrounded by a conductive fluid, perilymph, a spread of excitation occurs. The functionality of the cochlea is spatially dependent, and a wider area of excitation negatively affects the hearing of the user. Importantly, magnetic fields are unaffected by the material properties of biological components. To utilize the electromagnetic properties of the human ear, a microcoil array was developed. The microcoils are 4-turn solenoids with a 250- [Formula: see text] turn radius and a 31.75- [Formula: see text] wire radius, coated with Parylene-C. The efficient design was implemented to accelerate testing. The obtained results describe stimulation capabilities. Functionality was validated using a frequency response analyzer to measure how the generated electromagnetic power radiates in space. 99.8% power loss was observed over a 100- [Formula: see text] separation between a pair of identical microcoils. Obtained through finite-element modeling, the microcoils can be driven by a 60 mA, 5 kHz, sinusoidal input for 10 minutes before predicted inflammation. Rattay's activating function was calculated to evaluate the magnetic stimulation effect of external fields on target neurons. Combined with the frequency response analysis, magnitude and spatial effects of the generated potential is established. As a result, each microcoil requires a 400- [Formula: see text]-wide area for each independent stimulation channel, which is 84% narrower than a commercial cochlear array channel, thereby suggesting greater spatial selectivity.

Avances y desafíos del Sistema Multilateral del Comercio en materia de Comercio Electrónico

When talking about electronic commerce, it is important to emphasize on how the use of the internet has become part of our daily culture and a necessityfor today’s societies, thus generating development in economies around the world and serving as a means of rapprochement between companies andconsumers that, although performed remotely, does not neglect closeness to the customer, creating comfort and access to a greater quantity of goods andservices. With its extensive growth and diversification, we find ourselves with the question of whether as member countries of the World Trade Organization(WTO), we can promote a flow of electronic commerce and its constant evolution, being one of the main tasks in which this organization can create or promote a legal framework where the access to this commercial channel allows equitable accessibility to more goods and services. Therefore, it is of utmost importance for this issue to be considered a priority and, despite the challenges it entails, as nations of the world we should enter into negotiations so electronic commerce and its benefits are not diminished by a framework that does not suit its characteristics, but rather tries to adapt to the versatility and evolution of new technologies.

A UAV-aided channel sounder for air-to-ground channel measurements

Unmanned aerial vehicle (UAV) is a promising platform for future communication systems due to its high mobility, maneuverability, and low cost. The unique features that distinguish UAV communications from conventional land communications include the high altitude, mobility, and three dimensional (3D) trajectories. Thus, it is urgent to measure and analyze the characteristics of air-to-ground (A2G) channels. In this paper, a UAV-aided channel sounder for characterizing A2G channels is developed, which includes two components, i.e., the air transmitter and ground receiver. For measuring the channels, the raw channel impulse response (CIR) is extracted from the measured channel data firstly. According to the parametric channel model, the simplified and more practical CIR is then reconstructed by the clustering and parameter estimation algorithms. In order to verify the effectiveness and accuracy of proposed channel sounder, a commercial channel emulator is used to reproduce realistic channels in the lab and calibrate the measured results by the proposed channel sounder. Finally, the channel sounder is applied to measure the air-to-ground channels under campus scenarios, which shows that the measured channel parameters such as path loss and path delay are consistent with the theoretical ones.

Perlindungan Hukum Bagi Pemegang Merek Terhadap Pemalsuan Merek Fashion

Trademark as one manifestation of intellectual property has an important role for the smooth and increased trade in goods and services in the trade of goods and investment. As for the problems in writing this thesis, What about legal protection for trademark
 holders against falsification of fashion brand violations? This research uses normative research methods. Another name for normative law is doctrinal law research, also referred to as document library research or document study. This study uses a statutory and conceptual approach. Existing legal protection also applies to trademark holders as protection provided to legal subjects in the form of both preventive and repressive legal instruments. Settlement of legal violations of registered trademarks, is in Article 83 paragraph (3) of Law Number 20 of 2016 Regarding Trademarks and Geographical Indications which use the Commercial Court channel as an institution to resolve trademark disputes, infringement of wellknown marks can be resolved through legal channels civil and criminal law lines. Legal remedies for trademark rights against Fashion Zara brand product offenses can file Civil and Criminal Lawsuits for damages and also proceed in a commercial court in accordance with the provisions stipulated in article 83 of Act No. 20 of 2016 concerning Trademarks and Geographical Indications. The suggestion is to socialize the importance of registering trademarks for legal protection to trademark holders so that trademark owners will increase their awareness to register trademarks used.

Residence time distribution in RO channel

Residence time distribution (RTD) in a commercial Filmtec™ BW30-400 RO channel is determined using Computational Fluid Dynamics (CFD) and correlated with the Exponentially Modified Gaussian (EMG) model. The RTD, cumulative function of RTD, and flushing dynamics in RO channels are shown to be different from the analytical solutions derived for plane channels, due to the existence of spacer filaments in the former. The results for multiple channels connected in series are also acquired. The efficacy of purging after one displacement volume is estimated to be 90% for one RO element and 95% for seven RO elements connected in series.

Probing start-up electroosmotic forces and flows in a microfluidic channel using laser tweezer force spectroscopy

Transient displacements of optically trapped particles in [NaCl] $$=$$ 0.1 mM solutions produced by electroosmotic and electrophoretic forces at electric field start-up were profiled wall-to-wall through $$50\,\upmu \hbox {m}$$ in a commercial microfluidic channel with a spatial resolution of $$1\,\upmu \hbox {m}$$ and temporal resolution of 200 kHz. Data were inverted to compute the force on the particles and fitted to a first-principles finite element methods model to compute the flow profile, and zeta potential of the walls and particles. This analysis suggested that (1) electroosmotic flow in the channel was accompanied by a pressure gradient, producing backflow, and which was attributed to bubbles within the channel and that (2) while the zeta potential of the wall was broadly consistent with that expected, the zeta potentials across the nine particles examined was higher than might be expected, which were attributed to differences in surface conditions of the particular particles used.

Dietary trans-cinnamaldehyde improves oxidative stress response of channel catfish (Ictalurus punctatus) following Edwardsiella ictaluri infection

Commercial channel catfish (Ictalurus punctatus) is an economically valuable agricultural commodity in the United States, which suffers heavily from bacterial pathogens including Edwardsiella ictaluri. Our previous study revealed that dietary trans-cinnamaldehyde (TC) reduces catfish mortality after E. ictaluri infection, but there is limited knowledge of the effect of TC on the antioxidant defense system in catfish. In this study, we aimed to investigate the response of the catfish antioxidant defense system following TC feeding as well as E. ictaluri infection. In the first experiment, catfish fingerlings were fed with a basal diet or a basal diet supplemented with TC (20 mg/kg diet) for 10 days, and the level of five oxidative stress biomarkers were measured in the hepatic tissue. Compared with the control group, superoxide dismutase (SOD) activity was increased significantly and the malondialdehyde (MDA) concentration decreased significantly (P < 0.001) in hepatic tissue of catfish that were fed a TC-supplemented diet. Whereas activities of catalase (CAT) and reduced glutathione (GSH) as well as nitric oxide (NO) concentration did not show significant differences between TC and control groups. In the second experiment, catfish fingerlings were fed a TC-supplemented or normal diet followed by infection with E. ictaluri, and the activities of oxidative biomarkers were measured on 1, 6, and 14-days post-infection (dpi). Significant (P < 0.001) increases in CAT, SOD, and GSH activities were observed in catfish fed TC when compared with those fish fed a normal diet on 1, 6, and 14 dpi. A significant (P < 0.001) decrease in NO and MDA concentrations were found in catfish that received a TC diet compared to the control group at 1, 6, and 14 dpi. In conclusion, dietary TC improved the oxidative stress response in catfish following E. ictaluri challenge. These results provide information regarding the mechanisms by which TC provides protection against E. ictaluri infection.