TdIF1 recognizes a specific DNA sequence through its Helix-Turn-Helix and AT-hook motifs to regulate gene transcription

Peer reviewedPublisher PD

Geochemistry of Rare Earth Elements (REE) in the Weathered Crusts from the Granitic Rocks in Sulawesi Island, Indonesia

We report for the first time the geochemistry of rare earth elements (REE) in the weathered crusts of I-type and calc-alkaline to high-K (shoshonitic) granitic rocks at Mamasa and Palu region, Sulawesi Island, Indonesia. The weathered crusts can be divided into horizon A (lateritic profile) and B (weathered horizon). Quartz, albite, kaolinite, halloysite and montmorrilonite prevail in the weathered crust. Both weathered profiles show that the total REE increased from the parent rocks to the horizon B but significantly decrease toward the upper part (horizon A). LREE are enriched toward the upper part of the profile as shown by La/YbN value. However, HREE concentrations are high in horizon B1 in Palu profile. The total REE content of the weathered crust are relatively elevated compared to the parent rocks, particularly in the lower part of horizon B in Mamasa profile and in horizon B2 in Palu profile. This suggests that REE-bearing accessory minerals may be resistant against weathering and may remain as residual phase in the weathered crusts. The normalized isocon diagram shows that the mass balance of major and REE components between each horizon in Mamasa and Palu weathering profile are different. The positive Ce anomaly in the horizon A of Mamasa profile indicated that Ce is rapidly precipitated during weathering and retain at the upper soil horizon

Petrology and Geochemistry of Granitoid from South Sulawesi, Indonesia: Implication for Rare Earth Element (REE) Occurrences

This study reports petrology and geochemistry of potential rare earth elements (REE) bearing granitoid from South Sulawesi. The granitoid consists of monzogranite, granodiorite and diorite with subordinate of quartz monzonite, monzodiorite and syenite. Major and trace element analysis were determined using XRF method while trace element and rare earth element composition were determined by ICP-MS method. Geochemical study suggested that the granitoid were metaluminous series and ???I-type??? granitoid. They were furthered classified as calc alkaline series in AFM diagram. The total REE concentration in the granitoids range from 279 ppm to 400 ppm whereas total REE + Y contents up to 305 ppm for Polewali and 428 ppm for Masamba granitoid.\ud Chondrite normalized REE patterns were characterized by enrichment of LREE with the depletion of heavy HREE. REE-bearing mineral were detected as zircon, apatite and monazite as shown by the positive correlation between Zr and P2O5 contents in bulk rock with REE content

Changes in Attitudes of Japanese Doctors toward Complementary and Alternative Medicine—Comparison of Surveys in 1999 and 2005 in Kyoto

We surveyed the attitudes of Japanese medical doctors toward complementary and alternative medicine (CAM) in 1999. It is supposed that the situation concerning CAM has been changing recently. The aim of the present study is to survey the attitude of doctors toward CAM again, and to examine changes in attitude over the last 6 years. The attitudes of medical doctors belonging to the Kyoto Medical Association toward CAM were surveyed by a structured, self-administered questionnaire in 1999 and 2005. The results showed that the doctors familiar with the term “CAM”, practicing CAM therapies, and attending meetings or training courses related with CAM, increased significantly from 1999 to 2005. The doctors who possessed knowledge of CAM also increased significantly from 1999 to 2005. Almost all doctors believed in the effectiveness of Kampo (Japanese traditional herbal medicine) and acupuncture. The number of doctors who believed in the effectiveness of aromatherapy and ayurveda increased significantly in 2005, compared with 1999. In the near future, 58% of doctors desired to practice CAM therapies. In conclusion, the numbers of doctors who practice CAM therapies, possess CAM knowledge and desire to practice such therapies have increased over the last 6 years in Japan

Lateritization process of peridotites in Siruka, Choiseul, Solomon Islands

The lateritic weathering crusts exposed in Siruka, Choiseul Islands, Solomon Islands, were developed on the expense of serpentinized peridotite underlain by Siruka schists and Voza lavas with a subhorizontal contact. The lateritic profiles consist of three generalized zones: bedrock, saprolitic zone (weathered and decomposed zone) and the limonitic zones. The profiles demonstrate variations in depths and continuity but illustrate mineralogy and geochemical affinity down profile and are analogous to saprolitic nickel laterite deposits. Silica and magnesia in the bed rock and the saprolitic zones have been removed and only the residual elements (iron, chromium, aluminium, manganese, cobalt and nickel) remain in the limonitic zone. These elements are relatively concentrated as a result of the removal of the soluble elements. Nickel is associated with silica and magnesia, as lizardite ormixed gels (garnierite nickel ore) at the weathering fronts. On the other hand, nickel, with generally low concentrations

Substrate size-dependent conformational changes of bacterial pectin-binding protein crucial for chemotaxis and assimilation

Gram-negative Sphingomonas sp. strain A1 exhibits positive chemotaxis toward acidic polysaccharide pectin. SPH1118 has been identified as a pectin-binding protein involved in both pectin chemotaxis and assimilation. Here we show tertiary structures of SPH1118 with six different conformations as determined by X-ray crystallography. SPH1118 consisted of two domains with a large cleft between the domains and substrates bound to positively charged and aromatic residues in the cleft through hydrogen bond and stacking interactions. Substrate-free SPH1118 adopted three different conformations in the open form. On the other hand, the two domains were closed in substrate-bound form and the domain closure ratio was changed in response to the substrate size, suggesting that the conformational change upon binding to the substrate triggered the expression of pectin chemotaxis and assimilation. This study first clarified that the solute-binding protein with dual functions recognized the substrate through flexible conformational changes in response to the substrate size

An O(n 1 2 +ɛ)-Space and Polynomial-Time Algorithm for Directed Planar Reachability

Abstract—We show that the reachability problem over directed planar graphs can be solved simultaneously in polynomial time and approximately O ( √ n) space. In contrast, the best space bound known for the reachability problem on general directed graphs with polynomial running time is O(n/2 √ log n Keywords-reachability, directed planar graph, sublinear space, polynomial time I

ANALYSIS OF RESIDENTIAL AREA CHOICE FOR NEWLY BUILT DETACHED HOUSE IN TOKUSHIMA URBAN AREA CONSIDERING DISASTER RISK, FAMILIES LIVING NEARBY, HOMETOWN

本研究では，津波災害が懸念される徳島東部都市圏で，東日本大震災前後に新築された戸建住宅の居住世帯を対象としたアンケート調査結果を用いて，新築戸建住宅立地の実態を把握するとともに，立地要因を特定し，津波災害などの災害リスクに加えて，家族との近居およびまちへの想い（地域心象）に着目し，その影響を明確にすることを目的としている．対象都市圏での新築戸建住宅立地では，近隣公示地価，居室数，交通利便性だけでなく，地域への愛着が影響していること明確となった．また，東日本大震災前後での意思決定時期による立地の差異として，震災前には徒歩圏での近居および自動車アクセスを前提とした近居が考慮されていたが，震災後では最大想定津波浸水深などの災害リスクの回避を重視する傾向が明確であることがわかった．The purpose of this research is to estimate the influence of disaster risk, residence in the neighborhood with family, and feelings for the town on the location of the newly built detached house in local area. In this research, while grasping the present location of the newly built detached house, the factors of the locations are specified in the eastern Tokushima urban area. We focus on not only disaster risk such as tsunami disasters, but also closeness with families and feelings for the town. As a result, it can be found that the location of newly built single-family houses in the target urban area is influenced not only by the public land price, the number of rooms, and the convenience of transportation, but also by the love for the area. As a difference of the location by the time of the decision-making, some new houses are located in the neighborhood with the family by foot before the earthquake. After the earthquake, it is important to avoid the disaster risk estimated from the maximum assumed depth of tsunami inundation