Inter-hemispheric electroencephalography coherence analysis: Assessing brain activity during monotonous driving

The current study investigated the effect of monotonous driving on inter-hemispheric electroencephalography (EEG) coherence. Twenty-four non-professional drivers were recruited to perform a fatigue instigating monotonous driving task while 30 channels of EEG were simultaneously recorded. The EEG recordings were then divided into 5 equal sections over the entire driving period for analysis. Inter-hemispheric coherence was computed from 5 homologous EEG electrode pairs (FP1-FP2, C3-C4, T7-T8, P7-P8, and O1-O2) for delta, theta, alpha and beta frequency bands. Results showed that frontal and occipital inter-hemispheric coherence values were significantly higher than central, parietal, and temporal sites for all four frequency bands (p< 0.0001). In the alpha frequency band, significant difference was found between earlier and later driving sections (p= 0.02). The coherence values in all EEG frequency bands were slightly increased at the end of the driving session, except for FP1-FP2 electrode pair, which showed no significant change in coherence in the beta frequency band at the end of the driving session. © 2010 Elsevier B.V

Dominasi Anak Laki-Laki Sulung dalam Keluarga Tionghoa Suku Hokkien di Kecamatan Tambaksari Surabaya Timur 泗水东区Tambaksari福建家庭中长子的地位和优势研究

Zaman dahulu budaya Tionghoa dalam sebuah keluarga memiliki anak laki-laki sangat penting. Penelitian ini bertujuan untuk mengetahui apakah sampai saat ini anak laki-laki sangat diinginkan dan juga untuk membuat kita mengerti tentang keistimewaan dan keuntungan dalam posisi menjadi anak laki sulung. Penelitian ini menggunakan metode deskriptif kualitatif yaitu mewawancarai informan guna mendapatkan data yang akurat. Terdapat empat sudut pandang informan terhadap anak laki sulung, yaitu laki sulung, orangtua anak laki sulung dan saudara kandung anak laki sulung. Meskipun zaman sudah semakin maju, namun tetap saja semua informan menilai anak laki lebih penting. Alasannya anak lelaki sulung dapat membantu menjaga adiknya yang masih kecil, meneruskan marga dan pekerjaan orang tua. Disaat anak sulung sebelum menikah pula ada beberapa hal material dan nonmaterial yang orangtua anak sulung berikan. Bagi saudara kandung laki sulung, mereka menilai kakak sulung mereka melakukan tanggung jawabnya dengan baik

CIRCULAR DICHROISM OF LIGHT-HARVESTING COMPLEXES FROM PURPLE PHOTOSYNTHETIC BACTERIA

The CD spectra of a range of antenna complexes from several different species of purple photosynthetic bacteria were recorded in the wavelength range of 190 to 930 nm. Analysis of the far UV CD (190 to 250 nm) showed that in each case except for the B800-850 from Chr. vinosum the secondary structure of the light-harvesting complexes contains a large amount of α-helix (50%) and very little 0-pleated sheet. This confirms the predictions of the group of Zuber of a high a-helical content based upon consideration of the primary structures of several antenna apoproteins. The CD spectra from the carotenoids and the bacteriochlorophylls show considerable variations depending upon the type of antenna complex. The different amplitude ratios in the CD spectrum for the bacteriochlorophyll Qy, Qx and Soret bands indicate not only different degrees of exciton coupling, but also a strong and variable hyperchromism (Scherz and Parson, 1984a, b)

Power electronics converters for an electric vehicle fast charging station with storage capability

Fast charging stations are a key element for the wide spreading of Electric Vehicles (EVs) by reducing the charging time to a range between 20 to 40 min. However, the integration of fast charging stations causes some adverse impacts on the Power Grid (PG), namely by the huge increase in the peak demand during short periods of time. This paper addresses the design of the power electronics converters for an EV DC fast charging station with local storage capability and easy interface of renewables. In the proposed topology, the energy storage capability is used to smooth the peak power demand, inherent to fast charging systems, and contributes to the stability of the PG. When integrated in a Smart Grid, the proposed topology may even return some of the stored energy back to the power grid, when necessary. The accomplishment of the aforementioned objectives requires a set of different power electronics converters that are described and discussed in this paper.This work has been supported by COMPETE: POCI-01-0145-FEDER-007043 and by FCT within the Project Scope: UID/CEC/00319/2013. This work is financed by the ERDF – COMPETE 2020 Programme, and FCT within project SAICTPAC/0004/2015‐POCI‐01‐0145–FEDER‐016434 and FCT within project PTDC/EEI-EEE/28813/2017. Mr. Luis A. M. Barros is supported by the doctoral scholarship PD/BD/143006/2018 granted by the Portuguese FCT agency. Mr. Tiago Sousa is supported by the doctoral scholarship SFRH/BD/134353/2017 granted by the Portuguese FCT agency

Beneficial Effects of Insulin on Glycemic Control and β-Cell Function in Newly Diagnosed Type 2 Diabetes With Severe Hyperglycemia After Short-Term Intensive Insulin Therapy

OBJECTIVE—To evaluate whether treatment with insulin is advantageous compared with oral antidiabetes agents in newly diagnosed type 2 diabetes with severe hyperglycemia after short-term intensive insulin therapy

Health Communication in the New Age: The Role of Social Media on the Behavior and Choices of Self-medication for Covid-19

During the early phase of second wave of Covid pandemic in Indonesia, the number of infected individuals increasing rapidly and exceed the capacity of the hospitals. Sick people who cannot be admitted to the hospital were forced to conduct self-isolation. During that time, a lot of information about covid drugs was circulating on social media and tempt sick people or those who care for them to buy drugs like those in social media chain messages. The aim of this study is to reveal the role of social media on the behavior and choices of self-medication for covid-19 among post-infected individual or to healthy people who are forced to take care of infected people independently. This simple cross-setional, questionairre based study conducted in the 1st and 2nd week of August 2021. Out of 308 respondents, 123 are male and 185 female. Most of the respondents has high level of education (University or diploma). 216 subjects are positive patients infected with covid and 92 people were taking care of their family members. most of the respondents obtain information regarding Covid self-medication actively, and they consider the information reliable, regardless their educational background. Nevertheless, most of them also consider the need to cross-checking the information. Keywords: Antivirus; Telemedicine; Placebo Effect; Infodemics; Cross-checkin