Persepsi penonton di Malaysia terhadap filem yang memenangi Academy Awards

Di Malaysia, pasaran filem adalah amat berpotensi dan hal ini boleh dibuktikan melalui kutipan box office yang tinggi di pawagam. Namun begitu, filem yang memenangi Academy Awards kurang mendapat sambutan dalam kalangan penonton di Malaysia walaupun filem tersebut diiktiraf sebagai filem yang berkualiti dan mendapat ulasan yang tinggi di peringkat antarabangsa. Objektif kajian ini adalah untuk meneliti filem Academy Awards yang manakah yang ditonton di Malaysia dan mengenal pasti faktor yang menyebabkan filem yang memenangi Academy Awards bukan pilihan utama penonton tempatan di pawagam. Kajian ini menggunakan kaedah kuantitatif dan persampelan bebola salji (snow-balling) iaitu mengedarkan borang soal selidik di media sosial yang melibatkan seramai 112 orang responden di seluruh Malaysia. Kajian ini menggunakan Teori Kegunaan dan Kepuasan (U&G) untuk menjelaskan setiap penonton filem mempunyai faktor penontonan filem yang berbeza bagi memenuhi keperluan masing-masing. Hasil kajian menunjukkan bahawa penonton tempatan mempunyai pandangan yang positif dan ulasan yang tinggi terhadap filem-filem tersebut tetapi data yang dikumpul menunjukkan penonton tempatan mempunyai tahap pengetahuan yang rendah dan kebanyakan responden tidak minat menonton filem-filem tersebut

Temporal evolution of depolarization and magnetic field of FRB 20201124A

Fast radio bursts (FRBs) are energetic millisecond phenomena in radio band. Polarimetric studies of repeating FRBs indicate that many of these sources occupy extreme and complex magneto-ionized environments. Recently, a frequency-dependent depolarization has been discovered in several repeating FRBs. However, the temporal evolution of polarization properties is limited by the burst rate and observational cadence of telescopes. In this letter, the temporal evolution of depolarization in repeating FRB 20201124A is explored. Using the simultaneous variation of rotation measure and dispersion measure, we also measure the strength of a magnetic field parallel to the line-of-sight. The strength ranges from a few $\mu {\rm G}$ to $10^3\ \mu {\rm G}$. In addition, we find that the evolution of depolarization and magnetic field traces the evolution of rotation measure. Our result supports that the variation of depolarization, rotation measure and the magnetic field are determined by the same complex magneto-ionized screen surrounding the FRB source. The derived properties of the screen are consistent with the wind and the decretion disk of a massive star.Comment: 9 pages, 3 figures, 1 table, accept for publication in ApJ

Probing Dirac Neutrino Properties with Dilepton Signature

The neutrinophilic two Higgs doublet model is one of the simplest models to explain the origin of tiny Dirac neutrino masses. This model introduces a new Higgs doublet with eV scale VEV to naturally generate the tiny neutrino masses. Depending on the same Yukawa coupling, the neutrino oscillation patterns can be probed with the dilepton signature from the decay of charged scalar $H^\pm$. For example, the normal hierarchy predicts BR$(H^+\to e^+\nu)\ll$ BR$(H^+\to \mu^+\nu)\approx$ BR$(H^+\to \tau^+\nu)\simeq0.5$ when the lightest neutrino mass is below 0.01 eV, while the inverted hierarchy predicts BR$(H^+\to e^+\nu)/2\simeq$ BR$(H^+\to \mu^+\nu)\simeq$ BR$(H^+\to \tau^+\nu)\simeq0.25$. By precise measurement of BR$(H^+\to \ell^+\nu)$, we are hopefully to probe the lightest neutrino mass and the atmospheric mixing angle $\theta_{23}$. Through the detailed simulation of the dilepton signature and corresponding backgrounds, we find that the 3 TeV CLIC could discover $M_{H^+}\lesssim1220$ GeV for NH and $M_{H^+}\lesssim1280$ GeV for IH. Meanwhile, the future 100 TeV FCC-hh collider could probe $M_{H^+}\lesssim1810$ GeV for NH and $M_{H^+}\lesssim2060$ GeV for IH.Comment: 18 pages, 9 figure

A collective form of cell death requires homeodomain interacting protein kinase

We examined post-eclosion elimination of the Drosophila wing epithelium in vivo where collective “suicide waves” promote sudden, coordinated death of epithelial sheets without a final engulfment step. Like apoptosis in earlier developmental stages, this unique communal form of cell death is controlled through the apoptosome proteins, Dronc and Dark, together with the IAP antagonists, Reaper, Grim, and Hid. Genetic lesions in these pathways caused intervein epithelial cells to persist, prompting a characteristic late-onset blemishing phenotype throughout the wing blade. We leveraged this phenotype in mosaic animals to discover relevant genes and establish here that homeodomain interacting protein kinase (HIPK) is required for collective death of the wing epithelium. Extra cells also persisted in other tissues, establishing a more generalized requirement for HIPK in the regulation of cell death and cell numbers

A multifunctional azobenzene-based polymeric adsorbent for effective water remediation

The efficient removal of trace carcinogenic organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs) and ionic dyes, from water is an important technical challenge. We report a highly effective recyclable multifunctional azobenzene (AZ)-based silica-supported polymeric adsorbent which can simultaneously remove both PAHs and anionic dyes from water to below parts per billion (ppb) level based on multiple interactions such as the hydrophobic effect, [pi]–[pi] stacking and electrostatic interactions, thus providing a new strategy for designer water remediation materials