1,045 research outputs found
Dr. Scott Meiners
No full textDr. Scott Meiners is a Professor of Biological Science at Eastern Illinois University. Meiners is a featured author at the Authors@EIU event at Booth Library. He shares his recent publication- Tree By Tree Saving North America\u27s Eastern Foresthttps://thekeep.eiu.edu/authors_at_eiu_feb2024/1004/thumbnail.jp
Dr. Scott Meiners
No full textDr. Scott Meiners presents an author talk on his recently published book- Tree By Tree Saving North America\u27s Eastern Foresthttps://thekeep.eiu.edu/authors_at_eiu_feb2024/1005/thumbnail.jp
Kurzer Entwurff der Übung des Christenthums, oder, Der thätlichen Gottesgelehrtheit, darinnen die Sünder zum Stand der Gnaden angeleitet, und Begnadigte unterrichtet und aufgemunteret werden, heilig versicheret und getrost zu leben und zu sterben
No full textvon Eduard Meiners ... ; aus dem Holländischen übers. von David FelssPaginierung fortlaufend durch beide TheileAuf dem Vorsatzbl. hs. Eintrag "Mit diesem u. andern Büchern verehrt die Vadianische Bibliotec wegen erlangten Registrator Stelle David Feltz, d. 25. Maj 1769
Chemical ecology of insect parasitoids: essential elements for developing effective biological control programmes
No full textInsect parasitoids can find their hosts in complex environments and reproduce through a series of behavioural steps which are regulated mainly by chemical cues, termed semiochemicals. According to functional criteria, stimuli can be classified into four main categories: (A) cues coming from the habitat, the host microhabitat or the food plant, (B) direct host‐related cues, (C) indirect host‐related cues, and (D) cues coming from the parasitoid itself. In recent years, considerable progress has been made in elucidating the semiochemicals used by parasitoids to locate their hosts. Several studies provided interesting prospective for manipulating foraging behaviour of parasitoids in order to increase their impact on pest populations. However, most of the research has been conducted mainly under laboratory conditions, which differ considerably from field conditions, especially in agro‐ecosystems in which human activities modify the tritrophic interactions between plants, phytophagous insects, and parasitoids. As a consequence, it is often not known how to employ semiochemicals in the field to successfully manipulate parasitoids in order to improve their efficiency in biological control programs and the simple application of semiochemicals could be counter‐productive. In order to provide essential elements for developing effective biological control programmes, we critically review recent research on different strategies to manipulate parasitoid behavior for the conservation or the recruitment of parasitoids within agro‐ecosystems. We show where the complexity of the system should be consideredwhen accompanying the introduction and/or the conservation of natural enemy populations within agro‐ecosystems by exploiting tritrophic interactions and manipulation of parasitoid behavioral responses to chemical cues
Phytosanitäre Eigenschaften und Charakterisierung der Zusammensetzung von Wasserdampf-Hydrolaten aus der ätherisch Öl-Produktion
No full textPhytosanitäre Eigenschaften und Charakterisierung der Zusammensetzung von Wasserdampf-Hydrolaten aus der ätherisch Öl-Produktion
No full textSea-ice core and under-ice optical measurements from ice stations conducted during RV Polarstern PS117 voyage
No full textProgress Code: completedStatement: Sampling and analyses followed standard procedures (e.g. Miller et al. 2015). No problems were encountered.<b>Purpose</b><br/>Combined these measurements aimed i) to describe physical-chemical-biological conditions in summer sea ice in the Weddell Sea and ii) to develop algorithms to estimate sea-ice Chlorophyll-a content from transmitted irradiance data (see for example Melbourne-Thomas et al. 2015, Meiners et al. 2017).Sea-ice cores (0.09 m internal diameter) were sampled during Polarstern voyage PS117 to the Weddell Sea during December 2018 to January 2019. Ice core measurements include position, snow thickness, ice thickness, ice core temperature and bulk-salinity profiles, macro-nutrient concentrations as well as Chlorophyll-a pigment content. In addition on each ice station downwelling (surface) and under-ice irradiances were measured with a hyperspectral radiometer
An Impulse Generator Simulation Circuit
No full textThis thesis describes the creation of a simulation circuit to match the output of a Marx type Impulse Generator. The goal was to estimate the stray capacitance and insert that capacitance into the simulation circuit to effectively produce an output similar to that of the generator. An actual three-stage impulse generator was used as the base. Several different levels of impulse voltage were tested, and the output waveforms were captured. Research was conducted to formulate the stray capacitance and identify the locations of these capacitances in the generator itself. The simulation circuit was then subjected to several iterations, adjusting the capacitance values to attain an output as close as possible to that of the actual generator. Conclusions of the research indicate that an effective simulation circuit can be created to give an output that is close to, but not exactly that of, the actual generator. In the research, several areas of error were identified in the actual generator that were not present in the simulation circuit. These areas are discussed in the thesis
Collation of existing (historical) Antarctic fast ice core Chlorophyll a data
No full textProgress Code: completedThe Antarctic Fast Ice Algae Chlorophyll-a (AFIAC) dataset is a compilation of currently available sea ice chlorophyll-a data from land-fast sea ice (i.e., excluding pack ice (see ASPeCt-Bio, Meiners et al. 2012)) cores collected at circum-Antarctic locations during the period 1970 to 2015. Data come from peer-reviewed publications, field-reports, data repositories and direct contributions by field-research teams. During all campaigns the chlorophyll-a concentration (in micrograms per litre) was measured from melted ice-core sections, using standard procedures, e.g., by melting the ice at less than 5 degrees C in the dark; filtering samples onto glassfibre filters; and fluorometric analysis according to standard protocols [Holm-Hansen et al., 1965; Evans et al., 1987]. Ice samples were melted either directly or in filtered sea water, which does not yield significant differences in chlorophyll-a concentration [Dieckmann et al., 1998]. The dataset consists of 888 geo-referenced ice cores, consisting of 5718 individual ice core sections, and including 404 full vertical profiles with a minimum of three sections. Samples/sections from the remaining cores represent: i) bottom 0.05 m only (n= 32), ii) bottom 0.1 m only (n = 301), complete cores (n = 66), as well as intermittent profiles (n = 85) with at least 3 sections but gaps in-between them. <br/>For questions about this dataset please contact: Klaus Meiners and Martin Vancoppenolle<br/>This data compilation was carried out under the auspices of the Scientific Committee on Antarctic Research - ASPeCt program and the Scientific Committee on Ocean Research (SCOR) working group on Biogeochemical Exchange Processes at the Sea-Ice Interfaces (WG-140). It also contributes to SCOR WG-152 on Measuring Essential Climate Variables in Sea Ice (ECV-Ice).<br/><br/>An update to this dataset was submitted in September, 2018
Non-use of the supplementary benefits law ( 'Toeslagenwet' ) 1991
No full textNon-use of additional social benefits law. People who receive social security benefits, whose income is below a 'social minimum' can appeal to the law on additional social benefits. Not all of them use this opportunity. Research on character and cause of non-use. After becoming unemployed being informed about possible social benefits? / Way of being informed / judgement about being informed on possible social benefits / R. receiving additional social benefits / R. declared unfit for work: percentage? / Kind of social benefit received by respondent: unemployment ( WW ) / unfit ( WAO ) / widowed ( AWW ) / Knowledge about mechanism of additional social benefits law / understanding the mechanism of the law / R. experienced problems with additional social benefits law/ causes of the problems / clearing the problems / talking to others about the additional social benefits law / 'the 1990-rule' / heard about rule for self-support = 1990-generation / R. was ever refused an application for additional support / Result of possible appeal against refusing additional support / R. has relatives or friends with receiving social benefits / talking to others about receiving social benefits. / R.'s source of income / frequency of receiving 'income' / net income of respondent / estimate of salary by the hour, day, week month, year / source of income of R.'s partner: salary, AAW, WAO, WW, Sickness, AOW - old age pension, scholarship, child allowance, holiday pay, other social benefits. Ever since being out of work, respondent economized on paying visits to others, clothing, food, club memberships, insurances, housing = moved to smaller house / possibility to make ends meet for respondent / net income needed to make ends meet / statements on civil servants/ tasks of civil servants / statements about filling in forms / social benefits / talking about social benefits / dependency / unemployment. Background variables: basic characteristics/ household characteristics/ educatio
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