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Consumerism and Sustainable Development:An Austrailian-South Korean Comparative Study
Patrick Mullins,정대연,John S. Western,Ian Lowe,Rod Simpson 한국사회과학협의회 2004 Korean Social Science Journal Vol.31 No.1
This paper addresses a socio-cultural contradiction, one that is of monumental proportion, being global in scale and allegedly threatening the survival of the natural and social worlds. It emanates from two cultural imperatives - consumerism and environmentalism - and their consequent behaviours - consumption and environmental behaviour. Consumerism is a cultural imperative that demands we appropriate as many goods and services as possible and that we should do this essentially for fun and enjoyment. In contradistinction, environmentalism is the cultural imperative that demands we act in an environmentally sustainable way and, most particularly, do this by cutting back on consumption and against a backdrop of a impending
The role of O-fucosylated glycans in Notch signaling
Jeongsup Shim,Bronislawa Petryniak,John B. Lowe 한국당과학회 2013 한국당과학회 학술대회 Vol.2013 No.1
Signaling from the Notch receptor family is important in development, and its role in disease has assigned the Notch signaling pathway as a therapeutic target (1). Mammalian Notch receptors are single-pass transmembrane glycoproteins containing 29-36 EGF-like repeats. Notch receptors on receiving cells signal when they interact with Notch ligands expressed on sending cells. Glycosylation of some Notch EGF-like repeats modulates signaling (2). EGF repeat glycosylation includes constitutive fucosylation of some EGF repeat-localized serine/threonine residues, and elongation of fucose-initiated glycans regulated by the Fringe family of glycosyltransferases (3). We sought to determine how O-fucosylated glycans modulate Notch signaling, using cell-based Notch signaling assay by co-culturing with Notch ligand bearing cells and beads and protein-protein binding assay with surface plasmon resonance (SPR). We find that lunatic Fringe modification of Notch1 receptors enhances Dll1, Dll4, and Jag2 binding affinities and signaling, while it reduces Jag1-mediated binding affinity and signaling. SPR study indicates that Notch signaling is correlated with association constant (KA) and maximum binding capacity (Rmax) may be critical in Notch signaling from Jag2 in solid-phase Notch signaling assay.
Nurtjahjaningsih Ida Luh Gede,Rimbawanto Anto,Fauzi Mohammad Anis,Dormontt Eleanor E.,Lowe Andrew John,Hendrati Rina Laksmi,Baskorowati Liliana,Susanto Mudji,Sulistiadi Harry Budi Santoso,Mashudi,Pudj 한국산림과학회 2023 Forest Science And Technology Vol.19 No.1
Genetic relationships among teak (Tectona grandis) seed sources have been found to be low, thus genetic materials from other sources are required to maintain broad genetic diversity. This study here is therefore aimed to assess the potency of teak genetic structure in Southeast Sulawesi, Indonesia. Leaf materials were sampled from six populations: the villages of Angondara, Anduna (Konawe), Napabalano, Matakidi, Wakuru (Muna) and Wakonti (Buton). One population from Java Island (Kepek) was used as an outgroup. Genetic structures were assessed by using six microsatellite markers. The genetic diversity within populations was moderate (mean expected heterozygosity ¼ 0.544; mean allelic richness ¼ 3.752) as well as the genetic differentiation among the populations (mean FST ¼ 0.085). Dendrogram analysis revealed that the populations were separated into two clusters; the first is Kepek-Angondara, Anduna-Napabalano-Matakidi, Wakuru, and the second is Wakonti. AMOVA showed that the genetic variation was insignificant between regions, but significant among populations. The structural analysis demonstrates the division of populations into two lineages (Java and Southeast Sulawesi populations). Differences in genetic structures indicated that the teak from Southeast Sulawesi may have originated from other sources. Thus, those populations are promising for broadening the genetic base of commercial teak in Java.
Mohammed Harun Chakrabarti,Wei Tze Mook,Mohamed Kheireddine Taeib Aroua,Ishenny Muhammad Noor,Muhammad Faisal Irfan,Chee Tong John Low 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.1
The main factor that determines the success of a bio-electrochemical system (BES) is the bio-electrode. This paper reviews the direct as well as mediated electron transfer mechanisms in bio-electrodes. Some discussions on their influence upon the performance of microbial fuel and electrolysis cells are considered. Factors affecting organic matter removal at bioanodes and denitrification at biocathodes are elaborated upon. Important parameters for the successful simultaneous removal of contaminants are reported. The major conclusion from this work is that BES is able to remove organic matter and nitrates simultaneously from different wastewater samples at efficiencies greater than 90%.
Ma, Rui,Zhang, Huairuo,Yoo, Youngdong,Degregorio, Zachary Patrick,Jin, Lun,Golani, Prafful,Ghasemi Azadani, Javad,Low, Tony,Johns, James E.,Bendersky, Leonid A.,Davydov, Albert V.,Koester, Steven J. American Chemical Society 2019 ACS NANO Vol.13 No.7
<P>The coexistence of metallic and semiconducting polymorphs in transition-metal dichalcogenides (TMDCs) can be utilized to solve the large contact resistance issue in TMDC-based field effect transistors (FETs). A semiconducting hexagonal (2H) molybdenum ditelluride (MoTe<SUB>2</SUB>) phase, metallic monoclinic (1T′) MoTe<SUB>2</SUB> phase, and their lateral homojunctions can be selectively synthesized <I><I>in situ</I></I> by chemical vapor deposition due to the small free energy difference between the two phases. Here, we have investigated, in detail, the structural and electrical properties of <I>in situ</I>-grown lateral 2H/1T′ MoTe<SUB>2</SUB> homojunctions grown using flux-controlled phase engineering. Using atomic-resolution plan-view and cross-sectional transmission electron microscopy analyses, we show that the round regions of near-single-crystalline 2H-MoTe<SUB>2</SUB> grow out of a polycrystalline 1T′-MoTe<SUB>2</SUB> matrix. We further demonstrate the operation of MoTe<SUB>2</SUB> FETs made on these <I>in situ</I>-grown lateral homojunctions with 1T′ contacts. The use of a 1T′ phase as electrodes in MoTe<SUB>2</SUB> FETs effectively improves the device performance by substantially decreasing the contact resistance. The contact resistance of 1T′ electrodes extracted from transfer length method measurements is 470 ± 30 Ω·μm. Temperature- and gate-voltage-dependent transport characteristics reveal a flat-band barrier height of ∼30 ± 10 meV at the lateral 2H/1T′ interface that is several times smaller and shows a stronger gate modulation, compared to the metal/2H Schottky barrier height. The information learned from this analysis will be critical to understanding the properties of MoTe<SUB>2</SUB> homojunction FETs for use in memory and logic circuity applications.</P> [FIG OMISSION]</BR>