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Survivorship, attained diameter, height and volume of three Paulownia species after 9 years in the southern Appalachians, USA

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Journal of Forestry Research 2020年第6期31卷 2181-2191页

作者： Erik c.Berg stanley J.Zarnoch W.Henry McNab University of Montana Bureau of Business and Economic ResearchMissoulaMT 59812USA USDA Forest Service Southern Research Station AshevilleNC 28806USA

Little is known of the tree and stand dynamics of varied species of planted Paulownia left unmanaged until harvest in the southeastern United *** sought to remedy this lack of information needed by land managers to make informed decisions by investigating diff erences in survivorship,attained diameter breast height(DBH),diameter at ground level,total height,tree volume and standlevel volume yields of planted ***,***,and *** in the cool-moist environment of the southern Appalachian *** 9 years,combined-species survivorship was only 27.3%.Low survivorship was likely related to several inclement weather *** was signifi cantly smaller in DBH and total *** combined-species stem(bole)volume models were developed as functions of(1)DBH squared,(2)the product DBH squared and total height,and(3)the product diameter ground line squared and total *** total volume production of unmanaged stands was greatest for *** and *** 4 years after planting;by the 9th year,total volume of *** was greater than the other two *** of our study provide managers information on productivity of three species of Paulownia that can be used for estimating plantation yields.

关键词： Diameter Tree height Stand structure Stem volume Paulownia

Effects of herbal plants (Zingiber officinale and Hibiscus sabdariffa) as dietary additives on serum biochemistry and some metabolites in clarias gariepinus (Burchell, 1822)

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Journal of coastal Life Medicine 2017年第12期5卷 516-520页

作者： stanley iheanacho Emmanuel Ogueji Abubakar Yaji Olasunkamni Dada christian Mbah Augustine Ifejimalu Baba-Usman Ibrahim Department of Fisheries and Aquaculture Federal UniversityNdufu Alike IkwoEbonyi StateNigeria Department of Fisheries Modibbo Adama University of TechnologyAdamawa StateNigeria Department of Agriculture Federal UniversityNdufu Alike IkwoEbonyi StateNigeria Department of Zoology Ahmadu Bello UniversityZariaKaduna StateNigeria Department of Biological Science Ibrahim Badamasi Babangida UniversityLapiaNiger StateNigeria

Objective: To evaluate the effect of Zingiber officinale (ginger) and Hibiscus sabdariffa (roselle) as dietary supplements on serum biochemistry and some metabolites (urea and creatinine) in clarias gariepinus (c. gariepinus). Methods: A total of 150 c. gariepinus juveniles [initial weight (35.41 ± 1.53) g] were randomly assigned to five test diets. Ginger and roselle were added to diets as additives at 2 g and 4 g respectively while control diet contained none of the substances. Blood samples were collected from treatment groups for biochemical analysis after 70 days feeding trial. Results: Significant changes (P ctivities. Significant increase (P ced in treated fish when compared to control. Relative changes in urea and creatinine levels were observed in fish fed with roselle based diets while insignificant changes (P > 0.05) were seen in ginger treated fish. conclusions: The present study revealed that ginger and roselle added to the diets as additives had no adverse effect on the examined serum biochemistry in c. gariepinus.

关键词： Herbal plants Serum biochemistry Metabolites clarias gariepinus

Relative preference of Lygus hesperus （Hemiptera： Miridae） to selected host plants in the field

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Insect Science 2010年第6期17卷 542-548页

作者： Apurba K. Barman Megha N. Parajulee stanley c. carroll Department of Entomology Texas A&M University College Station Texas AgriLife Research center Lubbock Texas USA

Information on host plant preference of agriculturally important insect pests, such as Lygus hesperus （Knight）, can be helpful in predicting its occurrence and future movement among crop and nonrop host plants. A field study was conducted during 2005 and 2006 to evaluate the host preference of Lygus to cotton and four other host plants in the Texas High Plains, including alfalfa （Medicago sativa L.）, wild sunflower （Helianthus annuus L.）, Russian thistle （Salsola iberica L.） and pigweed （Amaranthus palmeri L.）. Sampling for both nymphs and adults during 2005 （July to November） and 2006 （June to November） showed that alfalfa and Russian thistle were the two most preferred hosts out of the five hosts evaluated. Abundance of nymphs （numbers per 50 sweeps per host plant） during the sampling period also indicated the superior reproductive suitability of alfalfa and Russian thistle. cotton appeared to be the least attractive host plant for Lygus when Russian thistle and alfalfa were available in the host mosaic. Seasonal abundance of Lygus was found to be lower during 2006 compared to 2005, which may be explained by the difference in rainfall patterns during these two years. In terms of species dominance, L. hesperus was the most dominant species in the sampled population followed by an inconsiderable fraction ofL. elisus and L. lineolaris.

关键词： cotton crop host-plant preference Lygus hesperus non-cotton crops

Mineral Association and Mineralogical criteria for the Formation conditions of A B-F-Sn-Bi Skarn in Damoshan,Gejiu Tin Field,Southwest china

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chinese Journal Of Geochemistry 1992年第2期11卷 140-155页

作者：陈骏 c.HALLS c.J.stanley Department of Earth Sciences Nanjing UniversityNanjing210008 Department of Geology Royal School of MinesImperial CollegeLondon Department of Mineralogy British Museum(Natural History)London

The Damoshan deposit is a small B-F-Sn Bi exoskarn deposit and contains a distinctive mineral assemblage comprising andradite,vesuvianite,calcite,diopside,magnetite,hematite,nordenskioldine,cassiterite,varlamoffite,schenfliesite,native bismuth,eulytite,bismite and bismuthite,in which the occurrence of eulytite is the first reported in *** of the mineral paragenses show that andradite,vesuvianite and diopside were the earliest phases formed during metasomatism,i.e.,the skarn forming *** nordenskioldine,magnetite and native bismuth,perhaps together with eulytite,were precipitated at the stage of retrograde *** minerals varlamoffite,schoenfliesite,hematite ,bismite and bismuthite were probably the product of supergene *** minerals were analyzed by means of electron *** data on the ,coexisting phases and their compositons show that during the metasomatism reduced F-and Sn-rich primary mineralizing solutions reacted with highly oxidized carbonated of the Gejie Formation,producing a high Fe^2+/Fe^3+ skarn(vesuvianite-fluorite skarn)near the contact of granite,and a low Fe^2+/Fe^3+ skarn(vesuvianite-fluorite skarn)near the contact of granite,and a low Fe^2+/Fe^3+ skarn(andradite skarn)in the outer zone of the skarn body in which andradite is extremely tin-bearing up to 5.14 wt% SnO2),In the retrograde alteration stage ,B-rich,but F-and Si-deficient mineralizing solutions replaced the tin-bearing andradite,forming an association of nordenskioldine and magnetite,No sulphides were deposited at this stage because of the oxidization ambient conditions in the andradite *** the spergene oxidation zone,the nordenskioldine was dissolved into varlmoffite and calcite,the native bismuth was transformed into bismite or bismuthite ,and the magnetite was altered into hematite under the action of the cO2-rich supergene solutions.

关键词：锡矿田地质构造西南地区矿物学硅卡岩

Factors Affecting cotrimoxazole Prophylactic Therapy compliance in HIV Patients Attending a care and Treatment clinic at Bugando Medical centre in Mwanza, Tanzania

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PHASE EQUILIBRIUM OF cOMPLEX MIXTURES WITH EQUATIONS OF STATE: AN UPDATE5

Advances in Infectious Diseases（传染病进展） 2024年第2期 456页

作者： stanley Mwita Felix Tarimo Rahma Mbalamla

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chinese Journal of chemical Engineering 1995年第1期3卷 42-53页

作者： stanley I.Sandler Hasan orbey center for Molecular and Engineering Thermodynamics Department of Chemical EngineeringUniversity of DelawareNewarkDE 19716 USACenter for Molecular and Engineering ThermodynamicsDepartment of Chemical EngineeringUniversity of DelawareNewarkDE 19716 USA

Here we review a new class of mixing rules (hat have extended range of mixtures and conditions that can now be described by equation of state models. One characteristic of these mixing rules is that they simultaneously satisfy the boundary conditions of producing a second virial coefficient that is quadratic in mole fraction, and a free energy of mixing like that of an activity coefficient model at high density, though the mixing rule is itself independent of density. We show that using this mixing rule, various asymmetric, highly nonideal mixtures can be accurately described. One serendipitous result is that the parameters in this mixing rule model are almost independent of temperature, which allows accurate extrapolations of phase behavior to be made over large ranges of temperature and pressure.

关键词： equations of state mixing rules phase equilibrium complex mixtures

A Start Point for Extracellular Nucleotide Signaling

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Molecular Plant 2014年第6期7卷 937-938页

作者： stanley J. Roux Department of Molecular Biosciences University of Texas at Austin Austin TX 78712 USA

A START POINT FOR EXTRAcELLULAR NUcLEOTIDE SIGNALINGThe recent discovery of a plant receptor for extracellu- lar nucleotides, reported by choi et al. （2014）, is a major breakthrough that had been anticipated for over a dec- ade. Plants release ATP into their extracellular matrix （EcM） during growth and when they are induced by vari- ous biotic and abiotic stimuli （clark and Roux, 2011）. That these extracellular nucleotides would activate receptors in plants was predicted by two sets of discoveries： that low- and sub-micromolar ATP could induce increases in [ca2＋]cyt, NO, and superoxide signaling intermediates that led to downstream growth, stomatal, and defense responses, and that these changes could be blocked by antagonists that blocked extracellular nucleotide receptors in animals （Demidchik et al., 2003; Song et al., 2006; clark et al., 2011; Demidchik et al., 2009, 2011）. Although mammalian biolo- gists had discovered two classes of receptors for extracel- lular nucleotides （P2X and P2Y） decades ago （Burnstock, 2007）, there were no plant proteins obviously similar to these in any sequence data available. clearly, if there were plant purinoceptors, they would be different from the mammalian receptors, and they could not be discovered by motif searches.

关键词： PLANT genes RESEARcH PLANT lectins ADENINE nucleotides NUcLEOTIDES PLANTS -- Protein receptors ADENOSINE triphosphate -- Research PLANT growth

Analysis Framework for the Low carbon Eco-city Regulatory Plan Administration System: The case Study on the Planning of Eco-city of Taihu New city, Wuxi, china

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china city Planning Review 2016年第3期25卷 25-33页

作者： stanley c T Yip Qian Fang centre of Urban Planning & Design/ School of Urban Planning & Design Peking University

chinese cities need the appropriate administration system and governance model to support the implementation of low carbon eco-city projects, and to effectively scale up this urban development model across the nation. currently, local planning authorities are piloting the implementation of these low carbon eco-city projects through the statutory Regulatory Plans system(the local district zoning plans system). However, the focus has been put primarily on the use of the relevant technologies and the control through design approval. There is a lack on research and study on the establishment of an effective planning administration and governance environment for the subsequent promulgation of this development model. This situation is affecting the speed in the scaling up of the implementation of low carbon ecological projects in chinese cities. This paper argues that while technology applications and design issues are important factors, attention shall be put to setting up innovative planning administration and governance models for the statutory Regulatory Plan to facilitate the implementation of the low carbon eco-city projects. This paper puts forth an analysis framework on the administration and governance system which includes 4 governance components:(1) Administration platform and local capacity;(2) Planning conditions and approval process;(3) External public policy context;(4) Developers involvement and participation. A case study was undertaken based on Taihu New city eco-city project located at Wuxi, china. Based on research and analysis of the project implementation process, the study examines the challenges faced by the local planning offi cials and development companies during the implementation stage of the low carbon eco-city project. Finally this paper puts forth initial recommendations that could lead to further research in this important area.

关键词： low carbon ecological city district eco-cities regulatory plans low carbon city governance

Analysis of drying and saturating natural gypsum samples for mechanical testing

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Journal of Rock Mechanics and Geotechnical Engineering 2019年第2期11卷 219-227页

作者： Mohammadhossein Sadeghiamirshahidi stanley J.Vitton Department of civil and Environmental Engineering Michigan Technological University

The stability of underground abandoned gypsum mines is dependent on the gypsum pillar's strength,and most abandoned mines are in a fully saturated condition. Moisture affects the strength of gypsum and is therefore commonly measured when testing rock strength. For most rocks, this is a simple task of weighing the rock's mass before and after oven-heating at a specified temperature and duration. For natural gypsum, however, this is not a straightforward process. Heating natural gypsum can result in dehydration and transformation of gypsum to hemihydrate and anhydrite, thus changing the physical characteristics of the gypsum such as its particle density which in turn affects the moisture content and strength measurements. To prevent transformation when determining the moisture content of gypsum,the American Society for Testing Materials(ASTM) recommends lowering the drying temperature from 110℃ to 60℃ . To investigate the temperature at which gypsum transforms to hemihydrate, we used a helium pycnometer to measure the particle densities of gypsum, hemihydrate and anhydrite. In this research, we suggest that a higher drying temperature of 80℃ can be used for drying gypsum without transforming gypsum to hemihydrate. Further, preparing saturated samples for mechanical testing,which is required in stability analyses of abandoned mines, is challenging due to the dissolution of gypsum when placed in water. To address this problem, we investigated the following methods to saturate gypsum cores taking into account the solubility of gypsum:(1) water immersion,(2) vacuum saturation, and(3) improved vacuum saturation. The research indicates that all the three methods are acceptable but they should be conducted using a saturated gypsum-water solution to minimize dissolution. Further, the research found that the improved vacuum saturation method saturated the test samples within 24 h, while duration of 30 h was required for the other two methods.

关键词： Gypsum-hemihydrate-anhydrite transformation Dehydration Rock core saturation Moisture content Helium pycnometer