11,238 research outputs found
Parasitus quadrichaetus Ma & Cui 1999
No full textParasitus quadrichaetus Ma & Cui, 1999, Acta Zootaxonomica Sinica, 24 (1): 43. Holotype deutonymph, paratype 1 deutonymph from log imported from Korea (Chasong), types in NBPBC.Published as part of Lin, Jian-Zhen, 2022, Researcher Li-Ming MA: Contributions to systematic acarology and entomology, pp. 64-102 in Zootaxa 5159 (1) on page 75, DOI: 10.11646/zootaxa.5159.1.3, http://zenodo.org/record/677078
Chemical Fertilizer and Migration in China
No full textThis paper examines a possible connection between China’s massive rural to urban migration and high chemical fertilizer use rates during the late 1980s and 1990s. Using panel data on villages in rural China (1987-2002), we find that labor out-migration and fertilizer use per hectare are positively correlated. Using 2SLS, employing the opening of a Special Economic Zone in a nearby city as an instrument, we find that village fertilizer use is linked to contemporaneous short-term out-migration of farm workers. We also examine the long-term environmental consequences of chemical fertilizer use during this period. Using OLS, we find that fertilizer use intensity is correlated with future fertilizer use rates and diminished effectiveness of fertilizer, demonstrating persistency in use patterns, and suggesting that in areas with high use of fertilizer, the land is becoming less responsive. We also demonstrate that fertilizer use within a river basin is correlated with organic forms of water pollution, suggesting that industrialization has induced pollution in China both directly and through its impact on rural labor supply.
Fig. 1 in Three New Species Of Dichochrysa (Insecta: Neuroptera: Chrysopidae) From China, With A Checklist Of Chinese Dichochrysa
No full textFig. 1. Apex of abdomen in male. a. Dichochrysa; b. Mallada; c. Chrysoperla.Published as part of Kang-zhen, Dong, Wen-zhu, Li, Jun-zhi, Cui & Xing-ke, Yang, 2004, Three New Species Of Dichochrysa (Insecta: Neuroptera: Chrysopidae) From China, With A Checklist Of Chinese Dichochrysa, pp. 67-74 in Raffles Bulletin of Zoology 52 (1) on page 68, DOI: 10.5281/zenodo.461950
Native p-type transparent conductive CuI via intrinsic defects
No full textThe ability of CuI to be doped p-type via the introduction of native defects has been investigated using first-principles pseudopotential calculations based on density functional theory. The Cu vacancy has a lower formation energy than any of the other native defects, which include I vacancy (V(I)), Cu interstitial (Cu(i)), I interstitial (I(i)), Cu antisite (Cu(I)), and I antisite (I(Cu)). Combined with its shallow acceptor level, it offers sufficient hole concentrations in CuI. The natural band alignments as compared to zinc-blende ZnS, ZnSe, and ZnTe have also been calculated in order to further identify the p-type dopability of CuI. It is found that CuI has a relatively high valence band maximum and conduction band minimum, which also makes it easy to dope CuI p-type in terms of the doping limit rule. In addition, the small effective mass of the light hole-about 0.303m(0)-can provide high mobility and p-type conductivity in CuI. All of these results make CuI an ideal candidate for native p-type materials (C) 2011 American Institute of Physics. [doi:10.1063/1.3633220
Figure 5 in The new phylogenetic relationships in Veneridae (Bivalvia: Venerida)
No full textFigure 5. Phylogram of clade B. A, phylogram of clade B from Figure 3. B, phylogram of clade B from Figure 2.Published as part of Liu, Yumeng, Ma, Peizhen, Zhang, Zhen, Li, Cui, Chen, Ya, Wang, Yunan & Wang, Haiyan, 2022, The new phylogenetic relationships in Veneridae (Bivalvia: Venerida), pp. 346-365 in Zoological Journal of the Linnean Society 196 on page 354, DOI: 10.1093/zoolinnean/zlac047, http://zenodo.org/record/703596
Fig. 4 in Three New Species Of Dichochrysa (Insecta: Neuroptera: Chrysopidae) From China, With A Checklist Of Chinese Dichochrysa
No full textFig. 4. Dichochrysa flavinotala, new species, male. a. claw; b. apex of abdomen in male; c. male genitalia, dorsal view; d. male genitalia, lateral view; e. tignum; f. gonapsis.Published as part of Kang-zhen, Dong, Wen-zhu, Li, Jun-zhi, Cui & Xing-ke, Yang, 2004, Three New Species Of Dichochrysa (Insecta: Neuroptera: Chrysopidae) From China, With A Checklist Of Chinese Dichochrysa, pp. 67-74 in Raffles Bulletin of Zoology 52 (1) on page 70, DOI: 10.5281/zenodo.461950
Acupuncture for the treatment of drug addiction
No full textOver the last three decades there has been an increasing interest in acupuncture treatment of substance abuse around the world. Three important steps can be identified in this field. Dr. Wen of Hong Kong was the first (1972) to report that acupuncture at 4 body points and 2 ear points combined with electrical stimulation can relieve opioid withdrawal signs in the addicts. The second major step was made by Dr. M. Smith in New York, the head of the National Acupuncture Detoxification Association (NADA) of the USA, who finalized a protocol (1985), using only ear points without electrical stimulation for the treatment of drug abuse. The recent advance in this field was made by Dr. Han of the Peking University, Beijing, who characterized a protocol (2005), using electrical stimulation of identified frequencies on body points to ameliorate heroin withdrawal signs and prevent relapse of heroin use. In this review, the efficacy of acupuncture and related techniques for the treatment of drug dependence in experimental settings and clinical practice will be reviewed, and the possible mechanisms underlying this effect be discussed.Over the last three decades there has been an increasing interest in acupuncture treatment of substance abuse around the world. Three important steps can be identified in this field. Dr. Wen of Hong Kong was the first (1972) to report that acupuncture at 4 body points and 2 ear points combined with electrical stimulation can relieve opioid withdrawal signs in the addicts. The second major step was made by Dr. M. Smith in New York, the head of the National Acupuncture Detoxification Association (NADA) of the USA, who finalized a protocol (1985), using only ear points without electrical stimulation for the treatment of drug abuse. The recent advance in this field was made by Dr. Han of the Peking University, Beijing, who characterized a protocol (2005), using electrical stimulation of identified frequencies on body points to ameliorate heroin withdrawal signs and prevent relapse of heroin use. In this review, the efficacy of acupuncture and related techniques for the treatment of drug dependence in experimental settings and clinical practice will be reviewed, and the possible mechanisms underlying this effect be discussed
14_ST3_descriptive_tables_dgxc – Supplemental material for The collapse of the North Song dynasty and the AD 1048–1128 Yellow River floods: Geoarchaeological evidence from northern Henan Province, China
No full textSupplemental material, 14_ST3_descriptive_tables_dgxc for The collapse of the North Song dynasty and the AD 1048–1128 Yellow River floods: Geoarchaeological evidence from northern Henan Province, China by Michael J Storozum, Qin Zhen, Ren Xiaolin, Li Haiming, Cui Yifu, Fu Kui and Liu Haiwang in The Holocene</p
Dosiniinae Deshayes 1853
No full textDosiniinae Placamen was considered to belong to Choininae (Fischer-Piette & Vukadinovic, 1977). Similar to Periglypta, the subfamily assignment of Placamen has been in disarray owing to various phylogenetic results based on multigene fragments. In the MT tree in the present study, Placamen clusters with Dosiniiae (Fig. 4C), and the gene orders in Placamen and Dosinia are almost identical. Therefore, we here place Placamen in Dosiniinae.Published as part of Liu, Yumeng, Ma, Peizhen, Zhang, Zhen, Li, Cui, Chen, Ya, Wang, Yunan & Wang, Haiyan, 2022, The new phylogenetic relationships in Veneridae (Bivalvia: Venerida), pp. 346-365 in Zoological Journal of the Linnean Society 196 on page 358, DOI: 10.1093/zoolinnean/zlac047, http://zenodo.org/record/703596
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