224,624 research outputs found
Osiadanie terenu i jego wpływ na środowisko w chińskich regionach Xu Zhou, Yan Zhou oraz Huainan i Huaibei
No full textThe main coal mining subsidence area of the Xu Zhou, Yan Zhou, Huaihe collapsed state region were investigated including the environment state, water surface area, pollution source, and the utilization state. Some advice wasproposed to protect the environment of the subsidence area.Badaniem objęto główną strefę osiadania w stanie całkowitego zawału w chińskich regionach Xu Zhou, Yan Zhou i Huaihe, w tym stan otoczenia, wody powierzchniowe, źródła zanieczyszczenia oraz utylizację. Zaproponowano kilka rozwiązań dla ochrony środowiska strefy osiadania
Nonconvergence of the Mas-Colell and Zhou bargaining sets
No full textAnderson RM, Trockel W, Zhou L. Nonconvergence of the Mas-Colell and Zhou bargaining sets. ECONOMETRICA. 1997;65(5):1227-1239
Pseudecheneis sulcatoides Zhou & Chu 1992
No full textPseudecheneis sulcatoides Zhou & Chu 1992 Pseudecheneis sulcatoides Zhou & Chu 1992: 111 [English p. 115], figs. 1-3. Type locality: Yangbi, 25°40'N, 99°57'E [Mekong drainage], Yunnan Prov., China. Holotype: KIZ 839059. Paratypes: (19) KIZ. Distribution: Mekong drainage, Yunnan, China (Zhou & Chu, 1992).Published as part of Alfred W. Thomson & Lawrence M. Page, 2006, Genera of the Asian Catfish Families Sisoridae and Erethistidae (Teleostei: Siluriformes)., pp. 1-96 in Zootaxa 1345 on page 6
Perenniporia subrhizomorpha Tian & Liu & Zhou & Wang & Zhou 2021, sp. nov.
No full textPerenniporia subrhizomorpha Xue W. Wang, L.W. Zhou & X.M. Tian, sp. nov. (Figs. 2 & 3) MycoBank: MB 841348. Etymology:— subrhizomorpha (Lat.), refers to the similarity to Perenniporia rhizomorpha. Diagnosis:— Perenniporia subrhizomorpha is similar to P. rhizomorpha by having cream-colored rhizomorphs and similar pores (4–6 per mm), but differs in its wider generative hyphae and truncated basidiospores. Holotype:— CHINA. Hebei Province: Baoding, Laishui County, Yesanpo Bailixia Scenic Spot, on fallen branch of angiosperm, 23 July 2019, Li-Wei Zhou, LWZ 20190723-10 (HMAS!). Description:— Basidiomes annual, resupinate, adnate, papery, soft when fresh, becoming corky upon drying. Pore surface white when fresh, cream to buff upon drying; pores angular, 4-6 per mm; dissepiments thin, entire. Sterile margin thinning, white, up to 2 mm wide, usually with white to cream-colored rhizomorphs. Context cream, thin, up to 0.2 mm thick. Tubes concolorous with pore surface, corky, up to 0.6 mm long. Hyphal system dimitic; generative hyphae with clamp connections, slightly cyanophilous; skeletal hyphae cyanophilous; tissue unchanged in KOH. Generative hyphae in context infrequent, difficult to find, hyaline, thin-walled, unbranched, 4–5 μm diam, usually encrusted with crystals; skeletal hyphae in context dominant, hyaline, thick-walled with a distinct lumen, branched, interwoven, 3–4 μm diam. Generative hyphae in trama infrequent, difficult to find, hyaline, thin-walled, unbranched, 3.5–4.5 μm diam; skeletal hyphae in trama dominant, hyaline, thick-walled with a distinct lumen, branched, interwoven, 2–3 μm wide. Dendrohyphidia present at the dissepiments. Cystidia and cystidioles absent. Basidia clavate, with four sterigmata and a basal clamp connection, 17–20 × 9–10 μm; basidioles in shape similar to basidia but slightly smaller. Basidiospores ellipsoid to broadly ellipsoid, truncate, hyaline, thick-walled, smooth, dextrinoid, cyanophilous, (5.6–)5.7–6.5(–7.6) × (4.2–)4.3–5.5(–5.8) μm, L = 6.2 μm, W = 4.8 μm, Q = 1.26–1.29 (n = 60/2). Additional specimen (paratype) examined:— CHINA. Beijing: Fangshan District, Shangfangshan National Forest Park, on fallen trunk of angiosperm, 22 July 2019, Li-Wei Zhou, LWZ 20190722-36 (HMAS!).Published as part of Tian, Xue-Mei, Liu, Shi-Liang, Zhou, Lin-Jiang, Wang, Xue-Wei & Zhou, Li-Wei, 2021, Perenniporia subrhizomorpha sp. nov. (Polyporales, Basidiomycota) from North China, pp. 125-132 in Phytotaxa 528 (2) on page 129, DOI: 10.11646/phytotaxa.528.2.5, http://zenodo.org/record/577872
Prof. Th. W. Adorno and the author Hans Erich Nossack.
No full textProf. Th. W. Adorno and the author Hans Erich Nossack at a reception of Insel Verlag, Buchmesse Frankfurt 1966LB
Angiotensin II induces soluble fms-Like tyrosine kinase-1 release via calcineurin signaling pathway in pregnancy
No full textMaternal endothelial dysfunction in preeclampsia is associated with increased soluble fms-like tyrosine kinase-1 (sFlt-1), a circulating antagonist of vascular endothelial growth factor and placental growth factor. Angiotensin II (Ang II) is a potent vasoconstrictor that increases concomitant with sFlt-1 during pregnancy. Therefore, we speculated that Ang II may promote the expression of sFlt-1 in pregnancy. Here we report that infusion of Ang II significantly increases circulating levels of sFlt-1 in pregnant mice, thereby demonstrating that Ang II is a regulator of sFlt-1 secretion in vivo. Furthermore, Ang II stimulated sFlt-1 production in a dose- and time-dependent manner from human villous explants and cultured trophoblasts but not from endothelial cells, suggesting that trophoblasts are the primary source of sFlt-1 during pregnancy. As expected, Ang II-induced sFlt-1 secretion resulted in the inhibition of endothelial cell migration and in vitro tube formation. In vitro and in vivo studies with losartan, small interfering RNA specific for calcineurin and FK506 demonstrated that Ang II-mediated sFlt-1 release was via Ang II type 1 receptor activation and calcineurin signaling, respectively. These findings reveal a previously unrecognized regulatory role for Ang II on sFlt-1 expression in murine and human pregnancy and suggest that elevated sFlt-1 levels in preeclampsia may be caused by a dysregulation of the local renin/angiotensin system
Enhanced lattice boltzmann modelling of axisymmetric flows
No full textAn enhanced axisymmetric Lattice Boltzmann fluid simulation model developed by the second author involves no calculation for velocity gradients and has the feature that all external force terms can simply be added to the model. In this paper, the model is extended and applied to investigate the characteristics of two complex axisymmetric flows for further assessment of its capability. First of all, Taylor-Couette flow for Newtonian and non-Newtonian fluids is considered. The combined effects of the Reynolds number, the radius ratio and the power-law index n on the flow characteristics are analysed for an annular space of finite aspect ratio. Different forced axisymmetric laminar coldflow jets are then taken into account with different values of forcing amplitudes in the jets. The numerical results are compared with existing numerical results and experimental data reported in the literature to demonstrate the accuracy of the model
Hosea and Juanita Williams With Zhou Enlai, circa 1973
No full textHosea and Juanita Williams are shown posing for a picture with Zhou Enlai, the Premier for the People's Republic of China. Written on verso: Chou En-Lai, Premier, People's Republic of China, Hosea & Juanita WilliamsThe Atlanta University Center Robert W. Woodruff Library acknowledges the generous support of the Joseph & Evelyn Lowery Institute for Justice and Human Rights, the Joseph Echols Lowery Irrevocable Trust, and other donors in supporting the processing and digitization of Morehouse College's Joseph Echols and Evelyn Gibson Lowery Collection
REALIZING EFFICIENT USE AND CONSERVATION OF LAND UNDER PRIVATE OWNERSHIP: A REBUTMENT TO NOBEL ECONOMICS LAUREATE THEODORE W. SCHULTZ
No full textRebutting Theodore W. Schultz's assertions that small farmers are rational, low income countries saddled with traditional agriculture have not the problem of many farmers leaving agriculture for nonfarm jobs, part-time farming is efficient, and economies of scale have no logical basis and not stood the test of time, this paper presents that in (1) the low income countries still saddled with traditional agriculture, (2) the low income countries developing towards the high income economy, and (3) the high income countries, numerous able-bodied part-time and absent farmers earning higher off-farm income tend to under-utilize or idle small (and often fragmented) farms without selling or leasing them to full-time farmers to achieve economies of scale which do have logical basis and stood the test of empirical findings; and indicates that this is a global problem unresolved under private land ownership in both developing and developed countries. Thus small farmers in so doing are not so rational to the societal and their own fundamental interests. The paper also shows that in Central-Eastern Europe and Central Asia under private land ownership or possession many farmers voluntarily remain in collective land operation which perpetuates the low individual incentives. The paper further analyses the dilemmas the EU has been facing in resolving food overproduction, reducing trade-distorting agricultural subsidies and tariffs, keeping self-sufficiency, retaining small farmers in agriculture while strengthening large farmers, and efficient land use; and the crucial imperfections in the EU enlargement process. The paper thus proposes possible solutions on how to protect private land ownership, while transferring under-utilized land to full-time farmers; prevent the high costs of the traditional land consolidation, but still reaching its aims; keep part-time small farmers in agriculture, meanwhile bolstering full-time large farmers; avoid collective land operation, in the meantime benefiting from collective services; boosting EU enlargement but not adding burdens on the EU; retain non-cereal agriculture on ecologically sensitive land, at the same time improving the environment and precluding food overproduction; reduce trade-distorting agricultural subsidies and high tariffs, whereas making full-time farmers viable and competitive; and promote off-farm activities, for the meantime reinforcing agriculture.Land Economics/Use,
Nowe spojrzenie na planowanie architektury mieszkaniowej w afryce subsaharyjskiej
No full textThe author shares his reflections on state of art in housing and urban planning, deficiencies, expectations and possibilities in the Sahel region of Africa. He notices, that the housing problem in Africa is one of the challenges, which should be solved in order to recover life dignity of African people and secure their rights to traditional family life in acceptable conditions. The paper describes the studies on the typical dispersed urban structures and the need to foster this type of settlement structure and proposals of introduction of new on light steel frame housing system in the area of Sahel, combining the traditional way of building houses with modern technology. The particularly analysed case, is the housing problem in the Republic of Chad. The author presents the basic discussion on this topic and his architectural proposals. Unfortunately, the gap between the needs and the financial feasibility of housing construction in this area, makes this project already at the starting point extremely difficult to be realized without external subventions.Problem mieszkaniowy w Afryce jest jednym z wyzwań, które należy rozwiązać, aby Afrykanie mogli odzyskać godność życiową i zabezpieczyć swoje prawa do tradycyjnego życia rodzinnego w akceptowalnych warunkach. W artykule opisano badania nad typowymi rozproszonymi strukturami miejskimi i potrzebą wspierania tego typu struktur osadniczych oraz propozycji wprowadzenia nowego systemu konstrukcji domów, opartym na lekkim szkielecie stalowym, łączącym tradycyjny sposób budowania domów z nowoczesną technologią. Przypadkiem szczególnie analizowanym jest problem mieszkaniowy w Republice Czadu. Autor przedstawia podstawową dyskusję na ten temat i swoje propozycje architektoniczne. Niestety luka między potrzebami mieszkaniowymi w Czadzie a finansową wykonalnością budownictwa mieszkaniowego w tym obszarze sprawia, że projekt ten, już w punkcie wyjścia, jest niezwykle trudny do realizacji bez uzyskania zewnętrznych dotacji
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