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Search Results: 1 - 10 of 7469 matches for " Diego;Kinoshita "
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Laticíferos articulados anastomosados: novos registros para Apocynaceae
Demarco, Diego;Kinoshita, Luiza Sumiko;Castro, Marília de Moraes;
Brazilian Journal of Botany , 2006, DOI: 10.1590/S0100-84042006000100012
Abstract: laticifer presence is universal in apocynaceae, in the classic literature the type described for this family is the non-articulated. later researches have proved the occurrence of articulated laticifers only in four species, giving rise to controversies on their origin. the results obtained in our studies differ from those reported for most species of this family. in both aspidosperma australe müll. arg. (rauvolfioideae) and blepharodon bicuspidatum fourn. (asclepiadoideae), the laticifers are of the articulated anastomosing type because they are formed by adding cells with rapidly dissolving transverse walls. laticifers originate from ground meristem and/or procambium and form a branched system, they are in secretory phase since the early stages of formation in different organs, releasing latex only when the plant is damaged. the laticifer walls are exclusively pectic-cellulosic and their chemical characteristics probably change during their development. vegetative organ laticifers occur in all stem and leaf tissues, except epidermis and medullary parenchyma of a. australe. in the flower, laticifers are found in all floral organs, except in the medullary parenchyma of the pedicel of a. australe and in the ovules of both species. the presence of the same type of laticifer in these two genera, which represent the most divergent subfamilies within the apocynaceae corroborates the current circumscription of this family. the latex has protective function, allowing the species of this family to succeed in different environments.
Pulsed Supermagnetron Plasma CVD of a-CNx:H Electron-Transport Films for Au/a-CNx:H/p-Si Photovoltaic Cells  [PDF]
Haruhisa Kinoshita, Hiroyuki Suzuki
Journal of Modern Physics (JMP) , 2011, DOI: 10.4236/jmp.2011.25049
Abstract: Hydrogenated amorphous carbon nitride (a-CNx:H) films were formed on p-Si wafers set on a lower elec-trode by pulsed supermagnetron plasma CVD using i-C4H10 and N2 gases. Lower electrode RF power (LORF) of 13.56 MHz (50 - 800 W) was modulated by a 2.5-kHz pulse at a duty ratio of 12.5%, and upper electrode RF power (UPRF) of 50 - 400 W was supplied continuously. The optical band gap decreased with an increase in LORF at each UPRF. The open circuit voltage of Au/a-CNx:H/p-Si photovoltaic cells (a-CNx:H film thickness: 25 nm) was about 200 mV for each cell, and the short circuit current density and energy conversion efficiency increased with LORF for each UPRF. The highest energy conversion efficiency of 0.81% was obtained at UPRF/LORF of 200/800 W.
Importance of Translational Entropy of Water in Biological Self-Assembly Processes like Protein Folding
Masahiro Kinoshita
International Journal of Molecular Sciences , 2009, DOI: 10.3390/ijms10031064
Abstract: We briefly review our studies on the folding/unfolding mechanisms of proteins. In biological self-assembly processes such as protein folding, the number of accessible translational configurations of water in the system increases greatly, leading to a large gain in the water entropy. The usual view looking at only the water in the close vicinity of the protein surface is capable of elucidating neither the large entropic gain upon apoplastocyanin folding, which has recently been found in a novel experimental study, nor the pressure and cold denaturation. With the emphasis on the translational entropy of water, we are presently constructing a reliable method for predicting the native structure of a protein from its amino-acid sequence.
The septins
Makoto Kinoshita
Genome Biology , 2003, DOI: 10.1186/gb-2003-4-11-236
Abstract: The septin genes were originally discovered through genetic screening for budding yeast mutants defective in the cell-cycle progression [1]. Mutants of any one of the genetic loci CDC3, CDC10, CDC11 or CDC12 commonly form multinucleated cellular clusters [2-4]. These mutants cannot organize the 'bud neck filaments' that normally encircle and demarcate the cell cortex between a mother cell and the bud (daughter) [5]. From these and other data, the septins have been regarded as the major constituents of the bud-neck filaments, which have essential roles in cytokinesis [2-4]. Molecular genetic studies revealed that the four CDC genes encode similar polypeptides, each with some of the set of conserved motifs found in GTPases. The four encoded proteins, termed septins, thus founded a protein family within the GTPase superfamily [2-4]. The septins that were later found in other fungi, nematodes, flies, and mammals have also been shown to have roles in cytokinesis and other cellular processes.Septins have been found in diverse eukaryotes, including animals and fungi but not protozoa and plants. Most septin genes generate one or more polypeptides by alternative splicing and/or multiple translation start sites; the number of variants is not yet established for many of the genes. The septin genes in five organisms, and the largest product of each gene known from the current databases, are shown in Table 1, and a phylogenetic tree illustrating their structural relationships and molecular evolution is shown in Figure 1. It is noteworthy that considerable diversity has been generated within each species; for example, the human septins are 39-63% identical to human Sept2 at the amino-acid level. It may be possible to classify the septins in each species into two to four groups by sequence homology. Orthologs can be found within the fungi (such as Saccharomyces cerevisiae CDC3, Schizosaccharomyces pombe Spn1 and their Candida albicans orthologs, not shown) and within metazoa (such
Results from Upsilon(5S) at Belle: Strange Beauty and other Beasts
K. Kinoshita
Physics , 2008,
Abstract: The Belle experiment collected in 2005-6 a total of 23.6 fb$^{-1}$ of data at the $\Upsilon(10860)$ resonance, also known as $\Upsilon$(5S). These constitute nearly all of the world's sample of $e^+e^- \to \Upsilon$(10860) events, which provide clean $B_s$ pairs. We present here several $B_s$ and $\Upsilon$(10860) properties recently extracted from these data.
Searching for New Physics: Results from Belle and Babar
K. Kinoshita
Physics , 2007,
Abstract: The $B$-factories provide rich opportunities to search for new phenomena, in $B$, charm, and tau decays. Presented here is a selection of recent results from Belle and Babar.
New branch of Kaluza-Klein compactification
Shunichiro Kinoshita
Physics , 2007, DOI: 10.1103/PhysRevD.76.124003
Abstract: We found a new branch of solutions in Freund-Rubin type flux compactifications. The geometry of these solutions is described as the external space which has a de Sitter symmetry and the internal space which is topologically spherical. However, it is not a simple form of dS_p x S^q but a warped product of de Sitter space and a deformed sphere. We explicitly constructed numerical solutions for a specific case with p=4 and q=4. We show that the new branch of solutions emanates from the marginally stable solution in the branch of dS_4 x S^4 solutions.
Sides of "The" Unitarity Triangle: Results from Belle and Babar
K. Kinoshita
Physics , 2005, DOI: 10.1063/1.2173584
Abstract: The principal goal of the B-factories is to test the CKM paradigm through measurements that overconstrain the shape of the so-called Unitarity Triangle. The sides of the triangle are evaluated through absolute values of several elements of the CKM matrix, so achieving high precision on these is an important aspect of the B-factory program. Recent results from Belle and Babar are presented.
Strange Beauty and Other Beasts from Upsilon(5S) at Belle
Kay Kinoshita
Physics , 2010,
Abstract: The B-factories have successfully exploited the unique advantages of the Upsilon(4S) resonance to study many aspects of Bd and Bu mesons. The Upsilon(10860) (aka Upsilon(5S)) resonance, which is above mass threshold for the Bs and shares many of the same advantages, has been relatively unexplored. The Belle experiment has collected more than 120 fb-1 at the Upsilon(10860) and 7.9 fb-1 at higher energies, corresponding to more than 7 million Bs events. Recent results based on ~20% of these data are presented and prospects for future possiblities discussed.
Prospects for Upgrade of KEKB
K. Kinoshita
Physics , 2008, DOI: 10.1016/j.nuclphysbps.2009.01.035
Abstract: The Belle experiment at the KEKB electron-positron collider is expected to have collected close to one billion $\Upsilon$(4S) events by the time it comes to an end in 2009. An upgrade to KEKB has been proposed. It is designed for an order of magnitude higher luminosity than KEKB, following a three-year construction period. The ultimate goal of $8 \times 10^{35}{\rm cm}^{-2}{\rm s}^{-1}$ luminosity would be reached through further improvements over several years. To exploit the physics accessible through this improved luminosity, an upgrade of the Belle detector is also planned. A new international collaboration, temporarily named sBelle, is in the process of being formed. Super-KEKB and sBelle were officially placed on the KEK 5-year Roadmap in early 2008.
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