Antibody formation for malignant tumor. II. Antigenicity of Ehrlich ascites tumor lipoprotein

A unique low density lipoprotein was obtained from the tumor transplanted with a cultured cell line of Ehrlich ascites tumor, JTC-ll cell. The tumor low density lipoprotein electrophoretically migrated as a single band, and the mobility was different from that of other organs. The chemical composition of lipid, cholesterol and phospholipids in tumor low density lipoprotein were characteristic. The flotation rate was Sf 5.9, and thus the molecular weight was estimated to be about 130 x 104. The inhibitory effect on tumor growth of the immune serum was most elevated at 25th day after the intraperitoneal administration of tumor low density lipoprotein. The main fraction effective for inhibition of tumor growth existed in &#947;-globulin.</p

Superconducting electronic state in optimally doped YBa2Cu3O7-d observed with laser-excited angle-resolved photoemission spectroscopy

Low energy electronic structure of optimally doped YBa2Cu3O7-d is investigated using laser-excited angle-resolved photoemission spectroscopy. The surface state and the CuO chain band that usually overlap the CuO2 plane derived bands are not detected, thus enabling a clear observation of the bulk superconducting state. The observed bilayer splitting of the Fermi surface is ~0.08 angstrom^{-1} along the (0,0)-(pi,pi) direction, significantly larger than Bi2Sr2CaCu2O8+d. The kink structure of the band dispersion reflecting the renormalization effect at ~60 meV shows up similarly as in other hole-doped cuprates. The momentum-dependence of the superconducting gap shows d_{x^2-y^2}-wave like amplitude, but exhibits a nonzero minimum of ~12 meV along the (0,0)-(pi,pi) direction. Possible origins of such an unexpected "nodeless" gap behavior are discussed.Comment: 9 pages, 10 figures; revised version accepted for publication in Phys. Rev.

Global tropical forest cover change assessment with medium spatial satellite imagery using a systematic sample grid – data, methods and first results

At the Joint Research Centre (JRC) of the European Commission, a methodology has been developed to monitor the pan-tropical forest cover with remote sensing data for the years 1990-2000-2005 in Latin America, Southeast Asia and Africa on the basis of over 4000 sample units sample units with a dimension of 20 km by 20 km located at every full latitude and longitude degree confluence. From the Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper (ETM) instruments, images with low cloud impact from the epochs around the years 1990, 2000 and 2005 were selected and subsets covering the sample units were cut-out, pre-processed, segmented and classified in five different land cover classes in order to build global and regional statistics on tropical forest cover change. The data was validated in three steps, internal correction of wrongly classified objects, external (national or regional) expert validation and internal harmonization of the data. In this paper, the data collection and the workflow of the forest cover change assessment for the epochs 1990 and 2000 is presented. Parts of the results for the Brazilian Amazon have been validated by comparing with interpretations of corresponding samples carried out by the Instituto Nacional de Pesquisas Espaciais (INPE), showing a very high correlation. Further, the figure produced by INPE through the PRODES program on gross deforestation for the years 1990-2000 was compared to the figure calculated on basis of the JRC results for the respective area, where the JRC estimate that was ca. 10% higher than the INPE estimate.JRC.DDG.H.3-Global environement monitorin

Forest Cover Changes in Tropical South and Central America from 1990 to 2005 and Related Carbon Emissions and Removals

This paper outlines the methods and results for monitoring forest change and resulting carbon emissions for the 1990-2000 and 200-2005 periods carried out over tropical Central and South America. To produce our forest change estimates we used a systematic sample of medium resolution satellite data processed to forest change maps covering 1230 sites of 20 km by 20 km, each located at the degree confluence. Biomass data were spatially associated to each individual sample site so that annual carbon emissions could be estimated. For our study area we estimate that forest cover in the study area had fallen from 763 Mha (s.e. 10 Mha) in 1990 to 715 Mha (s.e. 10 Mha) in 2005. During the same period other wooded land (i.e. non-forest woody vegetation) had fallen from 191 Mha (s.e. 5.5 Mha) to 184 Mha (s.e. 5.5 Mha). This equates to an annual gross loss of 3.74 Mha y-1 of forests (0.50 % annually) between 1990 and 2000, rising to 4.40 Mha y-1 in the early 2000s (0.61 % annually), with Brazil accounting for 69% of the total losses. The annual carbon emissions from the combined loss of forests and other wooded land were calculated to be 482 MtC y−1 (s.e. 29 MtC y−1) for the 1990s, and 583 MtC y-1 (s.e. 48 MtC y-1) for the 2000 to 2005 period. Our maximum estimate of sinks from forest regrowth in tropical South America is 92 MtC y−1. These estimates of gross emissions correspond well with the national estimates reported by Brazil, however, they are less than half of those reported in a recent study based on the FAO country statistics, highlighting the need for continued research in this area.JRC.H.3 - Forest Resources and Climat

シンリョウジョ シュッサン シタ ジョセイ ノ ニンシン リスクスコアヲ モチイタ リスク ヒョウカ ノ ケントウ

目的 平成16年に開発された妊娠リスクスコア自己評価表(以下,スコア)を用いて診療所で出産した女性の得点を算出し,リスクレベルの傾向とスコアの特徴,分娩帰結との関連を検討する.方法 対象はA診療所で平成20年1月～ 12月に分娩し協力が得られた124名である.診療録よりスコアの評価項目と分娩帰結の情報を収集し,スコアA(初診時評価点)とスコアB(妊娠後半期評価点),合計スコア(スコアAとスコアBの総合得点)を算出した.次に,スコアA,スコアB,合計スコアそれぞれについて早産,分娩時異常出血(1,000ml以上),低出生体重児,吸引分娩,帝王切開分娩の5項目と低リスク群(0-1点)・中リスク群(2-3点)・高リスク群(4点以上)間の関連をみた.結果 平均年齢30.5±3.45歳,初産婦4割,経産婦6割であった.スコア別リスク群別割合は,スコアAで1点が37.9%と最も多く,低リスク群が半数(58.9%)を占めた.スコアBでは0点が80.6%と最も多く,同群が8割以上(83.1%)を占めた.合計スコアをみると中・高リスク群合わせて全体の50.1%を占めた.分娩帰結に異常がなかった事例は全体の78.2%で,うち診療所が単独で扱えない中・高リスク群は37.1%であった.一方早産,分娩時異常出血,低出生体重児,吸引分娩,帝王切開の帰結をとった事例は全体の21.8%あり,うち低リスク群は3.2%(4件)あった.スコアBで加点された事例を概観すると分娩帰結に大きな影響を及ぼす事例であった.χ2独立性の検定の結果,特に,Bスコアで骨盤位,IUGR,低位胎盤,双胎により2点以上の得点が付いた場合と,帝王切開や低出生体重児である傾向に関連があった.結論 1.スコアAは容易に加点されるが分娩帰結に影響を与える項目は少なく,スコアBは容易に加点されないが加点されると分娩帰結に直結する項目が多かった.2.妊産婦らが忠実にスコアの評価基準を守れば,約半数が二次・三次医療施設での健診・分娩が適切であると判断される.3.リスク得点が分娩帰結を反映していない事例が一部存在した.4.妊婦の後半期の評価において2点以上のリスク得点が付く場合には,帝王切開と低出生体重児などの異常帰結を取る傾向があり,スコアBの有用性が示唆された.Aim To use the pregnancy risk score self-assessment form developed in 2004 to examine the relationship between the risk level of women who delivered at a clinic and the birth result.Method The subjects were 124 women who gave birth from January～December 2008 at Clinic A and from whom consent was obtained.Birth results and scored items were collected from medical records to calculate Score A(first medical examination),Score B(latter half of pregnancy),and the Total Score(A and B).Next, with regard to each score,correlations were sought between five items(premature delivery,intrapartum abnormal bleeding(1,000ml or more),low birth weight infant,vacuum extraction and caesarean delivery) and the low(0-1 points),intermediate(2-3 points)and high(4 or more points)risk groups. Results Subjects\u27 mean age was 30.5±3.45 years with 40% primipara and 60% multipara.Inspection showed a correlation tending toward caesarean section(r=0.506)or low birth weight infant(r=0.409),particularly when two or more points were assigned for breech presentation, IUGR,low lying placenta or twin fetus to Score B. Conclusion When two or more points were assigned to the risk score during the latter half of pregnancy, there was a tendency toward caesarean operation,lower birth weight infant or other abnormal results, suggesting the utility of Score B

Contribuições do geoprocessamento à compreensão do mundo rural e do desmatamento no bioma Amazônia

O que é um produtor rural na Amazônia? Quantos existem, como e onde vivem? Qual sua relação com o desmatamento? O universo dos produtores rurais e das unidades e áreas de produção amazônicas é complexo e dinâmico. Ele resulta de uma história de milhares de anos. Inclui desde extrativistas de produtos vegetais e animais até os mais modernos agricultores do Brasil (grãos e algodão). Detectar, identificar e mapear sua ocorrência numa grande extensão territorial, onde o hábitat é disperso, a infraestrutura precária e com muitos conflitos fundiários, sempre foi um desafio. O acesso aos dados do Censo Agropecuário (IBGE) e do Cadastro Ambiental Rural (CAR), em bases geográficas, levaram a Embrapa Territorial a organizar, num bigdata geocodificado, um Sistema de Inteligência Territorial Estratégica do Bioma Amazônia. Mais de um milhão de produtores rurais e unidades e áreas de produção foram identificados e mapeados no bioma, de forma inédita, graças a procedimentos estatístico-matemáticos. Mais de 97% dos produtores rurais e unidades de produção, em sua maioria pequenos, não participam do processo de desmatamento na Amazônia. Além disso, a análise espaço-temporal geocodificada dos polígonos de desmatamento, entre 2009 e 2018, revelou que 12% dos casos não ocorrem em áreas rurais e, sim, em áreas protegidas

Os pequenos agricultores que vivem na Amazônia

Muito se falou nos últimos meses sobre as queimadas ocorridas no bioma Amazônia e sobre a responsabilidade da atividade agropecuária nisso. É preciso entender o perfil de produção dessa região e a realidade social das famílias que dependem da terra