cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bioactlvity of some Essential Oils against the Mediterranean fruit fly (Ceratitis capitata) under Laboratory Condition
Creators: name: Abebe Asale
name: Mekuria Tadesse
name: Wossen Kebede
name: Emiru Seoyom
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2023

description: Mediterranean fruit fly is one of the most important fruit damaging pests. It is a major pest in Ethiopian orchards causing annual loss of about 1,500 tone of orange and mandarin in Upper Awash Agro-Industry Enterprise. Different pest management strategics arc currently employed against the pest and the use o f bio-derived pesticides are known to be widely adopted practical intervention as
major components of integrated pest management (IPM) to tackle the med-fly problems in fruit production. Hence, the bioactivitios of essential oils from local plants were tested against the adult and immature stages o f the fruit fly (C. species). Essential oil bearing local plant materials was collected from Wondo Genet and Addis Ababa areas. Essential oils were produced using hydro-distillation
method using Clavcngcr Apparatus. The repellent action of essential oil of Chenopodiuin ambrosioides. Laggera tomentosa. Schinus /nolle, and Ociinuni suavac were tested against the Mediterranean fruit llics by standard bioassay procedure. The result indicated that more than 90% o f the adult flies were repelled due to application of essential oils on guava fruits in a choice bioassay. Essential oils
extracted from the leaves and succulent parts of O. suavac, showed no significant difference (P> 0.05) in rcpcllency. To determine the prophylactic effects of each essential oil against immature stages (maggots), six levels concentrations (100.150.200,250,300,500 ppm) were studied. Each test preparations were sprayed on pre-infcstcd guava fruits at 12. 24, 36 and 48 hours between infestations
with three replicates for each period. Number of adults emerged from each cage after 21- 30 days were counted and comparison was made with untreated cages to know the efficacy o f the oils. The essential oil extracts caused significant reduction in number of progeny (> 74% mortality) except for extract from O. suave. Thus, products of essential oils both from C. ambrosiodcs and L. tomentosa arc found to be promising against the Mediterranean fruit fly Ccratitis spccics. Hence, the current findings
deserve to be considered as sound inputs for future promotion of detailed practical experiments both under laboratory and field circumstanccs to cnhancc the ongoing Integrated Pest Management Strategy of the country.
description: Pest Managment Journal of Ethiopia , Vol. 14 (2010): Pest Managemernt Journal of Ethiopia
A New Clean Air Delivery Rate Test Applied to Five Portable Indoor Air Cleaners
Creators: name: Mølgaard, Bjarke
name: Koivisto, Antti Joonas
name: Hussein, Tareq
name: Hämeri, Kaarle
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: Air pollution has been recognised as one of the major risk factors for the global burden of disease. In modern society the majority of the exposure occurs indoors where people spend most of their time. Indoor air quality may be improved with portable air cleaners utilizing various cleaning techniques, such as filtration, electrostatic precipitation, and ionization. The objective of this study was to quantify air cleaner particle removal by particle size resolved clean air delivery rates (CADR). This was obtained by utilizing particle concentration measurements and indoor aerosol modeling. Our test protocol was applied to five air cleaners designed for household and office use. For particles with diameters above 100 nm and at the chosen settings, the CADR was around 40 m3/h for an ion generator, around 70 m3/h for an electrostatic precipitator, and ranging from 100 to almost 300 m3/h for the three filter-based air cleaners. Similar performances were obtained for ultrafine particles, except for the ion generator that performed better in this size range. Copyright 2014 American Association for Aerosol Research
Evaluation of Organic Materials for Modified Atmosphere Production for Maize Weevil Control in Stored Maize
Creators: name: Tadesse Birhanu
name: Teshonte Bogale
name: Meseret Negash
name: Ibrahim, Ahmed
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2023

description: Experiments were conducted in a laboratory and in storage structures in the field between 2008 - 2009, to assess the amount o f the COj and 0 : produced and the modified atmospheres produced (gas mixtures) as protectants o f maize grains against the maize
weevil fSitophilus zeamais MotschJ. The production of modified atmospheres (MAs) by composting fresh cow dung, chopped fresh sugarcane and chopped dry maize stubble each wetted at 60% moisture content was studied. The MAs were produced in plastic
cans (bio-generators). The measurement o f the MAs produced using Riken Infrared Gas Analyzer. Model R1-550A for CO: and portable oxygen meter for 0 : indicated that the highest CO^ levels were produced in fresh cow dung (25%) and fresh sugarcane (23%) following 4Shr incubation period. These substrates gave the tower 0 : content (3.5% and 3.7%), respectively) compared to the dry maize stubble which resulted in lower CO: level (9%) and the highest 0 : content (I9%>). The efficacy o f the MAs produced by these substrates was also studied in simulated storage structures in the field by letting the produced gas mixtures to storage structures containing 3 quintals o f weevil susceptible BH-540 maize variety. Analysis o f variances showed that application o f modified atmosphere to the maize grains stored in airtight storage structures can effectively control maize weevils. Significantly (p<0.0l) higher mean numbers o f weevils mortality and lower mean number and weight o f damaged grains and weight losses were recorded in maize grains treated with Quickphose (fumigant standard check) and modified atmospheres from fresh cow dung and fresh sugarcane. The gas produced from the digestion o f fresh cow dung and fresh sugar cane significantly (p<().OI) reduced the
progress o f maize weevils infestation. Germination test did not show any variation among the treatments. The result o f this study showed that the gas from biological digestion of fresh cow dung and chopped sugar cane can be used as control option for maize storage pest in airtight storages. However, rate and frequency o f application and economic feasibility should be studied before commercial application o f the technique
description: Pest Managment Journal of Ethiopia , Vol. 14 (2010): Pest Managemernt Journal of Ethiopia
The First Combined Thermal Desorption Aerosol Gas Chromatograph—Aerosol Mass Spectrometer (TAG-AMS)
Creators: name: Williams, Brent J.
name: Jayne, John T.
name: Lambe, Andrew T.
name: Hohaus, Thorsten
name: Kimmel, Joel R.
name: Sueper, Donna
name: Brooks, William
name: Williams, Leah R.
name: Trimborn, Achim M.
name: Martinez, Raul E.
name: Hayes, Patrick L.
name: Jimenez, Jose L.
name: Kreisberg, Nathan M.
name: Hering, Susanne V.
name: Worton, David R.
name: Goldstein, Allen H.
name: Worsnop, Douglas R.
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: To address the critical need for improving the chemical characterization of the organic composition of ambient particulate matter, we introduce a combined thermal desorption aerosol gas chromatograph—aerosol mass spectrometer (TAG-AMS). The TAG system provides in-situ speciation of organic chemicals in ambient aerosol particles with hourly time resolution for marker compounds indicative of sources and transformation processes. However, by itself the TAG cannot separate by particle size and it typically speciates and quantifies only a fraction of the organic aerosol (OA) mass. The AMS is a real-time, in-situ instrument that provides quantitative size distributions and mass loadings for ambient fine OA and major inorganic fractions; however, by itself the AMS has limited ability for identification of individual organic compounds due to the electron impact ionization detection scheme used without prior molecular separation. The combined TAG-AMS system provides real-time detection by AMS followed by semicontinuous analysis of the TAG sample that was acquired during AMS operation, achieving simultaneous and complementary measurements of quantitative organic mass loading and detailed organic speciation. We have employed a high-resolution time-of-flight mass spectrometer (HR-ToF-MS) to enable elemental-level determination of OA oxidation state as measured on the AMS, and to allow improved compound identification and separation of unresolved complex mixtures (UCM) measured on the TAG. The TAG-AMS interface has been developed as an upgrade for existing AMS systems. Such measurements will improve the identification of organic constituents of ambient aerosol and contribute to the ability of atmospheric chemistry models to predict ambient aerosol composition and loadings. Copyright 2014 American Association for Aerosol Research
Management of Faba Bean rust (Uromyces viciae-fabae) Using Fungicides and Host Resistance in the Hararghe Highlands, Ethiopia
Creators: name: Hasseii Sliifa
name: Temam Hussien
name: P. A. Sakhuja
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2023

description: Two Held experiments were carried out at Haramaya and Hirna of Hararghe highlands, Ethiopia in 2 0 0 9/2010 to determine the effect of four fungicides on the epidemics of faba bean rust (Uromyces viciae-fahae). using moderately resistant (Cicbelcho) and susceptible (NC5 8) varieties. Disease severity, disease progress rate (r ). and area under disease progress curve (AUDPC) were used to evaluate treatment effects. Rust epidemics were 0.12 and 0.10 units per day at Haramaya and Hirna, respectively on the susceptible
cultivar, NC5S. while it was 0.07 and 0.09 units per day at Haramaya and Hirna. respectively on the moderately resistant cultivar. Gcbclcho under natural djseasc epidemics. The severity and rate of rust progression were significantly influenced by resistance of the cultivars. Fungicide application significantly reduced rust severity and AUDPC. Treatment of faba bean with mancozcb at the rate of 1.6 a. i. kg/ha resulted in significant reductions in final rust severity, disease progress rate and AUDPC, and producing the highest yield of 4.4 and 4.6 t/ha at Haramaya and Hirna. respectively. Integration of Cicbelcho and mancozcb foliar sprays proved the best option out ol all, which provided 2 7 5% and 36 6% marginal rate of return (MRR) at Haramaya and at Hirna, respectively. Differences existed between locations and these could be due to differences in environmental factors
description: Pest Managment Journal of Ethiopia , Vol. 14 (2010): Pest Managemernt Journal of Ethiopia
Performance of Two Fluorescence-Based Real-Time Bioaerosol Detectors: BioScout vs. UVAPS
Creators: name: S. Saari
name: T. Reponen
name: J. Keskinen
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: A 405 nm diode laser-based on-line bioaerosol detector, BioScout, was tested and compared with the Ultraviolet Aerodynamic Particle Sizer (UVAPS). Both instruments are based on laser-induced fluorescence of particles. Only a fraction of microbial particles produce enough fluorescence light to be detected by the instruments. This fluorescent particle fraction (FPF) is aerosol and instrument specific. The FPF values for common bacterial and fungal spores and biochemical particles were experimentally determined for both instruments. The BioScout exhibited higher FPF values for all the test aerosols except coenzyme NADH. The difference was higher for smaller particles. The FPF values of fungal spores and bacteria varied between 0.34 to 0.77 and 0.13 to 0.54 for the BioScout and the UVAPS, respectively. The results indicate that the 405 nm diode laser is a useful excitation source for fluorescence-based real-time detection of microbial aerosols. The FPF results of this study can be utilized to estimate the actual concentrations of bacterial and fungal spores in fluorescence-based ambient measurements. Copyright 2014 American Association for Aerosol Research
Direct laser writing of three-dimensional photonic crystal lattices within a PbS quantum-dot-doped polymer material
Creators: name: Ventura, Michael J.
name: Bullen, Craig
name: Gu, Min
Publisher: name: Swinburne
Year: 2024

description: We report on the synthesis of an optically homogenous PbS quantum-dot-doped polymer material of thickness up to 100 micrometers. It is shown that high quality micro-void channels of submicrometer diameters can be directly fabricated into this nanocomposite by using an ultrafast femtosecond laser beam. Periodically stacked channels in the form of a three-dimensional photonic crystal woodpile lattices reveals a main stop gaps as well as higher-order gaps that overlaps the near-infrared emission wavelength range of PbS quantum dots. These partial stop gaps are well defined in an angular range from zero to 15 degrees in the stacking direction.
Development of High Fidelity Soot Aerosol Dynamics Models using Method of Moments with Interpolative Closure
Creators: name: S. P. Roy
name: P. G. Arias
name: V. R. Lecoustre
name: D. C. Haworth
name: H. G. Im
name: A. Trouvé
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: The method of moments with interpolative closure (MOMIC) for soot formation and growth provides a detailed modeling framework maintaining a good balance in generality, accuracy, robustness, and computational efficiency. This study presents several computational issues in the development and implementation of the MOMIC-based soot modeling for direct numerical simulations (DNS). The issues of concern include a wide dynamic range of numbers, choice of normalization, high effective Schmidt number of soot particles, and realizability of the soot particle size distribution function (PSDF). These problems are not unique to DNS, but they are often exacerbated by the high-order numerical schemes used in DNS. Four specific issues are discussed in this article: the treatment of soot diffusion, choice of interpolation scheme for MOMIC, an approach to deal with strongly oxidizing environments, and realizability of the PSDF. General, robust, and stable approaches are sought to address these issues, minimizing the use of ad hoc treatments such as clipping. The solutions proposed and demonstrated here are being applied to generate new physical insight into complex turbulence-chemistry-soot-radiation interactions in turbulent reacting flows using DNS. Copyright 2014 American Association for Aerosol Research
title: Pest Managment Journal of Ethiopia , Vol. 14 (2010): Pest Managemernt Journal of Ethiopia
title: Pest Managemernt Journal of Ethiopia
titleType: AlternativeTitle
Creators: name: Pest Managment Journal Of Ethiopia
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2010

description: Biology of Tortoise Beetle (Coleoptera: Chrysomel/dae) on Sweet Potato...48-60
Biting ant, Tetramorium aculeatum (Hymnoptera: Formicidae) Responses to Food Lures and Poison Baits on Coffee, Coffea arabica Tree...68-75
In-vitro Evaluation of Indigenous Trichoderma Species for Bio-control of Faba Bean Root Rot Caused by Fusarium solani...61-67
Bioactlvity of some Essential Oils against the Mediterranean fruit fly (Ceratitis capitata) under Laboratory Condition...40-47
Evaluation of Organic Materials for Modified Atmosphere Production for Maize Weevil Control in Stored Maize...34-39
Management of Faba Bean rust (Uromyces viciae-fabae) Using Fungicides and Host Resistance in the Hararghe Highlands, Ethiopia...21-33
The Importance and Management of Termites in Ethiopia: A Review...1-20
title: LawRules #6: We need to talk about Attorneys
Creators: name: Steinbeis, Maximilian
Publisher: name: Fachinformationsdienst für internationale und interdisziplinäre Rechtsforschung
Year: 2020
Subjects: subject: 342

description: Attorneys are not on everyone’s mind when they think about the rule of law. The European Commission gave a prime example for that when it remained conspicuously silent about the role of lawyers in its recent Rule of Law report. Yet, attorneys play just as important a role in preserving the rule of law as other parts of the judicial system do. What’s more: Where they are at risk of being prosecuted for doing their jobs, the erosion of the rule of law is imminent.
description: Verfassungsblog: On Matters Constitutional
Targeted Lung Delivery of Nasally Administered Aerosols
Creators: name: Tian, Geng
name: Hindle, Michael
name: P. Worth Longest
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: Using the nasal route to deliver pharmaceutical aerosols to the lungs has a number of advantages, including coadministration during noninvasive ventilation. The objective of this study was to evaluate the growth and deposition characteristics of nasally administered aerosol throughout the conducting airways based on delivery with streamlined interfaces implementing two forms of controlled condensational growth technology. Characteristic conducting airways were considered including a nose-mouth-throat (NMT) geometry, complete upper tracheobronchial (TB) model through the third bifurcation (B3), and stochastic individual path (SIP) model to the terminal bronchioles (B15). Previously developed streamlined nasal cannula interfaces were used for the delivery of submicrometer particles using either enhanced condensational growth (ECG) or excipient enhanced growth (EEG) techniques. Computational fluid dynamics (CFD) simulations predicted aerosol transport, growth, and deposition for a control (4.7 μm) and three submicrometer condensational aerosols with budesonide as a model insoluble drug. Depositional losses with condensational aerosols in the cannula and NMT were less than 5% of the initial dose, which represents an order-of-magnitude reduction compared to the control. The condensational growth techniques increased the TB dose by a factor of 1.1–2.6×, delivered at least 70% of the dose to the alveolar region, and produced final aerosol sizes ≥2.5 μm. Compared to multiple commercial orally inhaled products, the nose-to-lung delivery approach increased dose to the biologically important lower TB region by factors as large as 35×. In conclusion, nose-to-lung delivery with streamlined nasal cannulas and condensational aerosols was highly efficient and targeted deposition to the lower TB and alveolar regions. Copyright 2014 American Association for Aerosol Research
Watershed Program Evaluation, East Willow Creek, Minnesota
Creators: name: Economic Research Service
name: Economic Research Service
Publisher: name: Unknown
Year: 1965
Subjects: Agricultural and Food Policy
Crop Production/Industries
Financial Economics
Land Economics/Use
Livestock Production/Industries
Resource /Energy Economics and Policy

description: Excerpts from the report Preface: East Willow Creek, a tributary of the Root River system, drains a 37.5-square-mile area of Fillmore County in southeastern Minnesota. A watershed protection plan for East Willow Creek was written in 1954 under authority of a U. S. Department of Agriculture Appropriation Act of the same year. This act provided for a pilot program of watershed protection to be initiated in 65 small watersheds throughout the United States. The work plan for East Willow Creek Watershed outlined a program designed to reduce erosion, sedimentation, and flooding. It included land-treatment measures, dams for flood protection and land stabilization, and the improvement of subwatershed waterways. Construction of the project commenced in 1954 and was completed in 1959. An evaluation of the project was made to provide data that would be useful in planning other watersheds with similar problems and characteristics. This report reviews and analyzes results of project installations through 1960.
description: This report is the result of the joint efforts of the Minnesota State Conservationist's Office and the Engineering and Watershed Planning Unit, Lincoln, Nebr., (formerly Milwaukee, Wis.), Soil Conservation Service, and the Resource Development Economics Division, Economic Research Service.
The Importance and Management of Termites in Ethiopia: A Review
Creators: name: Abdulahi, Abdurahman
name: Tadesse, Abraham
name: M Ohammed Dawd
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2023

description: Termites arc major pests in the semi-arid anti subhumid tropics (Harris 1971. Wood and Johnson 1986, Wood 1991). Since Ethiopia lies in the tropics termites pose a serious threat to agricultural crops, forestry seedlings, rangelands and wooden structures. Termite problem is particularly serious in the western parts o f the country. Damage caused by termites to agricultural crops and wooden material have been long recognized in Ethiopia. The first report o f termite damage was from Kiltu Kara (near Ghimbi) in 1938 (Abdurahman and Adugna 1986). Later more consistent and serious reports o f termite damage to crops, forestry trees and rangelands came in early 1970s (Sanna 1973, Sands 1976, Wood 1986a). Effective management o f termites is o f paramount importance to ensure food security in the country ami to improve av ailability o f raw material for local industry and export markets.
description: Pest Managment Journal of Ethiopia , Vol. 14 (2010): Pest Managemernt Journal of Ethiopia
Amtliche Mitteilungen der Technischen Universität Dortmund Nr.13/2022
Creators: name: (:Unkn) Unknown
Publisher: name: Technische Universität Dortmund
Year: 2022
Subjects: subject: 080

description: Zweite Ordnung zur Änderung der Prüfungsordnung für den Masterstudiengang Physik der Fakultät Physik an der Technischen Universität Dortmund vom 28. April 2022
description: Ordnung zur Änderung der Prüfungsordnung für den Bachelorstudiengang Raumplanung der Fakultät Raumplanung an der Technischen Universität Dortmund vom 28. April 2022
description: Ordnung zur Änderung der Prüfungsordnung für den Masterstudiengang Raumplanung der Fakultät Raumplanung an der Technischen Universität Dortmund vom 28. April 2022
description: Amtliche Mitteilungen der Technischen Universität Dortmund;2022; 13
Report of an Olive Lace Bug Infestation on Olea europaea ssp. cuspidata (Wall, ex G. Don) P. S. Green in Desa’a Natural Forest, Northern Ethiopia
Creators: name: Yirgu, Abraham
name: Bisrat Getachew
name: Tesfay Belay
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2023

description: Olea europae subsp. cuspidata is widely grows in natural forests in many parts of Ethiopia. However, there is scanty information about the impact of insect pests’ infestation in the natural forests o f Ethiopia. Based on the outbreak of pest infestation report in Dessa ’a Natural Forest located in the border between Tigray and Afar national regional states of Ethiopia, field survey was conducted in November 2012. It has been observed that the nymph and adults of Plerochilia australis, attached to the underside of leaves of olea trees, were found to be responsible for yellowing and scorching of leaves that resulted in serious defoliation of tree regardless of age difference. In Esot, where the infestation first observed, nearly all trees were found infested and several dead trees were found. Similar infestation by P. australis was also observed in the leaves of Oleaeuropeae subsp europeae seedling which were introduced in recent years to Atsebi- Wemberta District of Tigray Regional Slate. The level o f insect infestation was observed to vary between the native and introduced trees and from one place to another based on climatic variables. Accordingly, more infestation were observed in the native than the exotic species and in warmer than cold weather. The lack of knowledge on the biology and ecology of P. australis  in Ethiopia limited the effort to control the impact and expansion of this pest.
description: Pest Managment Journal of Ethiopia , Vol. 16 (2012): Pest Managemernt Journal of Ethiopia
Partnerships at Swinburne
Creators: name: Morgan, Teula
name: Parker, Rebecca
Publisher: name: Swinburne
Year: 2024

description: The role academic libraries perform for the corporate side of their institutions is usually much less public than those provided to their most visible user groups: students and academics. This is starting to change. Swinburne Library is one of many Australian academic libraries managing an institutional repository---a digital collection of the university's research publications designed to maximise their potential to be discovered online. Institutional repositories can achieve many admirable goals for librarians---they preserve digital assets into the future, address the problem of skyrocketing journal prices, facilitate open access to scholarly research, and provide a single point of entry to an institution's entire body of research. For universities, though, the benefit of institutional repositories is more concrete. Information about a university's research achievements made available online helps to attract student enrolments and funding for more research.
Cotton Mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcidae): a Newly Introduced Pest Threatening Cotton Production in Ethiopia
Creators: name: Miesso Hemba
name: Bayeh Mulatu
name: Hiwot Lemma
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2023

description: Following the interception of a mealybug by crop protection staff of the Werer Agricultural Research Center and the Amibara Agricultural Enterprise on cotton, survey was made to determine the identity, distribution, incidence and severity of damage on cotton by this new pest in cotton growing areas of Ethiopia. Through the surveys, the pest was intercepted in the cotton fields of Awash River basin, Southern Ethiopia, Gambella, and Humera areas but with varying degrees of incidence and severity and the most affected was cotton in the Awash River basin. The mealybug was identified as Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae), which is commonly known as cotton mealybug and represented a newly recorded pest of cotton in Ethiopia. This pest causes quantitative yield loss through direct feeding. It also releases a large quantity of honeydew onto the plant surface resulting in reduced photosynthetic activity and significant lint quality degradation. In addition to cotton, the pest infested many field crops and a number of weed plants growing within or around cotton fields. Although the how and when of the introduction of the pest has not been fully determined, its means of movement to other areas within the country were determined through discussions made during the survey work. There are four possible causes of cotton mealybug introduction to new places and include movement
of farm machineries, laborers and jut bugs. Although the pest is new to the country, significant number of predatory coccinelides (larvae and adults) and larvae of green lacewing were found actively preying on the cotton mealybug in most of the infested cotton fields mainly after cotton is picked.


 


 


 
description: Pest Managment Journal of Ethiopia , Vol. 16 (2012): Pest Managemernt Journal of Ethiopia
Development and Evaluation of a Nanoparticle Generator for Human Inhalation Studies with Airborne Zinc Oxide
Creators: name: Monsé, Christian
name: Monz, Christian
name: Dahmann, Dirk
name: Asbach, Christof
name: Stahlmecke, Burkhard
name: Lichtenstein, Norbert
name: Karl-Ernst Buchwald
name: Merget, Rolf
name: Bünger, Jürgen
name: Brüning, Thomas
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorized

description: In the EU there is an increasing need for regulatory agencies to derive health based threshold limits based on human inhalation studies with airborne particles. A necessary prerequisite for such projects is the development of a suitable generator system to produce nanoparticle test aerosols for human whole-body inhalation studies. We decided to use a generator with flame-based heating of aqueous precursor solutions. Validation of the test system was done by generating zinc oxide (ZnO) nanoparticles with minimal contamination of trace gases, i.e., nitric oxides or carbon monoxide that could confound the effects seen in exposed subjects. ZnO was selected based on the uncertainties surrounding its health effects after exposure at the workplace. The generation process of the developed flame generator yields ZnO nanoparticles with monomodal size distribution and very good temporal stability. The maximum target exposure mass concentration of 2 mg/m3 ZnO, with a resulting median particle diameter of 57 nm, is attainable in our human exposure laboratory. The morphological examination shows typical agglomerates and aggregates formed by high temperature processes. Overall, the performed experiments confirm that a constant exposure can be provided for all subjects at all times. Copyright 2014 American Association for Aerosol Research
Reaction of Durum and Bread Wheat Varieties to Russian Wheat Aphid, Diuraphis noxia Attack under Irrigated Condition
Creators: name: Tebkew Damte
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2023

description: The reaction of wheat varieties to Russian wheat aphid (RWA) attack was assessed under field and glasshouse condition at DebreZeit center. In glasshouse test wheat varieties were evaluated in two replications in wooden seedboxes of 60 x 40 x 10cm. The boxes were filled with Vertisoland 20 seeds o f each variety were sown in 10cm row spaced at 5cm. In each seedbox unknown number o f field collected RWA were introduced at one leaf stage. Degree of leaf chlorosis was scored following 1 to 9 scale and leaf rolling either as flat or rolled. In the field screening, seeds (20 to 25 seeds) of each variety were planted in single row of 1m. Plants were inspected weekly from seedling to ear emergence stage and degree of leaf chlorosis and leaf rolling was scored as described in the glasshouse experiment. In all experiments irrigation water was given at weekly interval. In the glasshouse test, only the durum wheat variety Quamy and the bread wheat varieties Galama and Pavon-76 had chlorotic score of 6.0 and were categorized as moderately resistant/
susceptible to RWA, whereas the rest varieties of both wheat types fell in the susceptible category. Under field conditions the durum wheat varieties Asassa, Bichena, Cocorit 71, Hitosa, Kilinto, Werer, Quamy, Robe and Ude and among the bread wheat varieties Bobicho, Danda’a, Dashen, Enseno, Lackech, Tay and Tosa were moderately resistant/ susceptible to RWA, while the rest wheat varieties were susceptible to RWA. All the tested durum and bread w'heat varieties rolled their leaves when attacked by RWA.
description: Pest Managment Journal of Ethiopia , Vol. 16 (2012): Pest Managemernt Journal of Ethiopia
Groundnut Rust (Puccinia arachidis) Management through Integration of Host Resistance with Fungicides at Babile, Eastern Ethiopia
Creators: name: Mastewal Alehegn
name: P.K. Sakhuja
name: Mashila Dejejne
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2023

description: The field experiment was carried out at Babile Research Sub-Station of Haramaya University in2010 main cropping season to evaluate the efficacy of four fungicides (chlorothalonil at a rate of 0.2 kg-ha'1, copper hydroxide at a rate of 2.3 kg-ha"1, mancozeb at a rate of 0.25 kg-ha1 and triadimefon at a rate of 0.5 kg ha'1) on groundnut rust (Puccinia arachidis) development and grain yield. The experiment was laid out in a randomized complete block design (RCBD) in factorial arrangement with three replications. Two groundnut varieties were used for the experiment namely, Shulamith (susceptible) and Sedi (moderately resistance). The fungicide treatments resulted in different levels of disease severity on the two groundnut varieties used [i.e. Shulamith (susceptible) and Sedi (moderately resistant) varieties]. Plots sprayed with triadimefon had significantly (p < 0.001) lower level (257.37%-days) of AUDPCof groundnut rust than plots treated with other lungicides. Three times spray with triadimefon at a rate of 0.5 a.i. kg ha 1 at 15- day-interval proved to be the best groundnut rust management system giving the lowest disease parameters (AUDPC, PSI and DPR) and highest yield 1644.44 kg ha' . four times spray with mancozeb at a rate of 0.25 a.i. kg ha'l at 10-day interval proved to be the second best fungicide in significantly reducing the disease. Percentage severity index (PSI), area under disease progress curve (AUDPC) and disease progress rate were negatively correlated with groundnut seed yield. The highest rust severity 67.65%and lowest yield 1014.60 kg-ha1 were recorded on the unsprayed control shulamith plots. On Shulamith variety, rust severity of up to 67.65% and relative yield loss of 35.55% were recorded in unsprayed plots. Generally, the current research results indicate that  effective management of groundnut rust and significant yield benefit can be obtained when triadimefon fungicide spray is started just before or at the onset of the disease and properly continued at 15-day interval for three times spray frequencies. Evaluation of some more fungicides for their efficacies against groundnut rust and their integration with other rust management options can increase production and productivity of the crop.
description: Pest Managment Journal of Ethiopia , Vol. 16 (2012): Pest Managemernt Journal of Ethiopia
Teaching Labour Unionism in Schools
Creators: name: Oldham, Sam
Publisher: name: Critical Education
Year: 2020

description: Despite efforts, education has failed to provide solutions to wicked economic problems. In particular, efforts to mitigate the global crisis in wealth and income inequality through education have been amiss. This paper offers a critical policy analysis of prospects for the teaching of labour unionism in schools as a crucial step towards genuine economic and social justice. Drawing on existing research, policy texts, media sources and public data, it broadly analyses existing paradigms for policy in the relationship between education systems and economic affairs, including aspects of human capital theory, new growth theories, the promises of the global ‘knowledge economy’, and fields of entrepreneurship and enterprise education. Rather than serving to mitigate wicked economic problems, the paper argues that these policy paradigms serve to promote confusion around the relationship between education and economic growth, or to perpetuate inequality. In contrast to the lack of evidence supporting these paradigms, evidence for a positive correlation between labour union membership and greater equality in wealth and incomes is conclusive. The paper surveys a range of existing programs for teaching about labour unionism in schools, advocating for their proliferation. Rather than focused on a single context, transnational patterns and commonalities are addressed.
description: Critical Education, Vol 11 No 6 (2020)
Learning at Noon
Creators: name: Dolby, Nadine
Publisher: name: Critical Education
Year: 2020

description: In the context of the unrelenting neoliberal reality of schooling, teacher education focuses largely on the formal, structured spaces in which children learn: predominantly the classroom. Yet, critical educators also recognize that children learn in informal spaces at school, including at lunch. This essay examines how school lunch can be used to teach about humans’ relationships with other humans, animals, and the environment through innovative school, community, and university-based programs. In conclusion, this essay suggests that critical teacher educators should understand the pedagogical importance of school lunch in students’ lives, and begin to incorporate it into preservice teacher education programs.
description: Critical Education, Vol 11 No 8 (2020)
Comparative Performance of Two Predatory Mites in Managing Western Flower Thrips in Protected Rose Flower Farms in Central Ethiopia
Creators: name: Mulatu, Bay Eh
name: Kidist Tefera
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2023

description: The application of pesticides has been causing economic, health and environmental impact in the rose flower industry. To mitigate this, introduction of biological control agents was promoted and was successful in reducing spider mites, which used to require application of pesticides every three days in the worst case scenarios. But when this major pest of roses was effectively controlled using the introduced bio control agents, secondary pest outbreak became common. This included citrus mealybug, western flower thrips (WFT), aphids and bollworms. The WFT is a quarantine pest in most of the importing countries. Therefore biological control agents should have been evaluated on WFT. To this effect, two predatory mites (Amblyseus cucumeries and A. swiriskii) were compared. The two predators were released in separate greenhouses alone or in combination with either compatible pesticides or yellow sticky traps. It was found that A. cucumeries effectively controlled WFT than the other predatory species. The use of compatible
pesticide reduced the pest population near to zero. Beside this the hanging of sticky traps in big number also reduced the pest population significantly. There was also farm-wide verification of A. cucumeries, in which significant reduction of WFT was recorded over the sampling period. Therefore the use of A. cucumeries and the yellow sticky traps could be promoted with application of soft or compatible pesticides to effectively control the WFT.
description: Pest Managment Journal of Ethiopia , Vol. 16 (2012): Pest Managemernt Journal of Ethiopia
Exploring how an entrepreneur's cognitive style and level of overconfidence inﬂuence the development of management accounting systems
Creators: name: Bruce, David
name: Thorne, Helen
Publisher: name: Swinburne
Year: 2024

description: Entrepreneurs look to exploit profitable opportunities, however the novice entrepreneur faces many challenges, which can slow growth or even terminate the business. One such challenge is the development of management accounting systems (MAS). Insufficient MAS may restrict business growth, while inadequate MAS can lead to business demise. More recently, it has been argued that many New Economy Firms (NEFs) fail due to the ”lack of proper management control systems” (Granlund and Taipaleenmaki 2005). At the other end of the survival spectrum, entrepreneurs who intend to, and succeed in, growing a business have been found to focus on internal, as well as external, business issues (Jenkins and Johnson 1997). The development of MAS is an internal business issue; therefore the available evidence suggests that the development of MAS is important to entrepreneurial success. Recent MAS organizational life-cycle studies (Davila and Foster 2005; Granlund and Taipaleenmaki 2005), and small business MAS studies, recognize the role of the CEO or the owner-manager in the MAS development process, however none consider the influence of entrepreneurial behavior. This lack of attention to the entrepreneur’s influence on MAS development is recognized by Collier (2005), who provides details of a successful business where MAS development is considered a function of entrepreneurial control. Unlike much of the cited MAS research, many entrepreneurship scholars view the individual entrepreneur as an important focus of study, while others consider insights to entrepreneurial behavior to be critical in understanding business development. Entrepreneurial behavior is considered more predictive of individual variation than personality, with entrepreneurial cognition research receiving considerable attention. Cognition has been found to vary across entrepreneurs in ways that may influence the outcome of their endeavours (Simon, Houghton et al. 2000) and can be viewed in terms of style or bias. Cognitive style is a person’s ”preferred way of gathering, processing and evaluating information” (Allinson, Chell et al. 2000). Two cognitive styles explored in the literature are rational (analytic) and intuitive decision-making. Attention is also being given to the cognitive bias of overconfidence, where individuals ”overestimate the correctness of their initial estimates” (Forbes 2005). In particular situations, overconfidence can increase the likelihood of venture initiation and start-up, however, it can also lead, subsequently, to inappropriate operational decisions and underperformance.
The China's Hidden Curriculum
Creators: name: Ren, Yanming
name: Kushner, Saville
name: Hope, John
Publisher: name: Critical Education
Year: 2020

description: This is a case study of the impact of rapid industrialization on Chinese school, with the experience of left-behind children at its core. Much of China’s remarkable economic success in recent years owes to its policy of ‘floating labour’, allowing for the largest domestic migration in global history. Workers are allowed to migrate from areas of low- to high-work intensity. Mobility is for individual workers and not families, leading to the creation of a generation of around 60 million ‘left-behind children’. Using case methods allied to sociological theory this article reports the phenomenon and the experience of a left-behind child in a secondary school in central China, placed within the context of the impact of rapid industrialization on school practices.
description: Critical Education, Vol 11 No 9 (2020)
Incidence and Distribution of Potato Viruse Diseases in West Arsi and West Shewa Major Potato Growing Areas, Ethiopia
Creators: name: Seifu Juneidi
name: Turiku Megeressa
name: Berhanu Bekele
name: Belayneh Admasu
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2023

description: Field surveys were carried out in West Arsi and West Shewa administrative zones to determine incidence of potato viruse diseases. Limited information is available on major potato viral diseases in these areas. Virus-like symptomatic leaf samples were collected from 13 districts in 71 fields for the serological detection of the common potato viruses. Field disease incidence was visually assessed based on viral disease symptoms and the identities of the viruses were tested by double antibody sandwich (DAS)-ELISA. During the field surveys, virus-like symptoms were more common in West Arsi than in West Shewa. The serological test results showed that potato virus X (PVX) (50 %) was the most predominant followed by potato virus S (PVS) (38 %), potato leaf roll virus (PLRV) (11 %) and potato virus Y (PVY) (2 %). Mixed infections of PVX and PVS were noticed in all surveyed areas, while PVY coinfection was the least detected combination with any of the tested viruses.The high incidence of PVX and PVS is most likely attributed to their mode of mechanical transmissions. PLRV transmission by aphid in a persistent manner might have favored its higher incidence as compared to PVY that is transmitted by aphids in a non-persistent manner. Of the total assayed samples, 93 %, 86 %, 73 %, 74 %, 71 %, 70 %, 69 %, 59 %, 57 %, 50 %, 48 %, 20 % and 19 % at Arsi-Negele, Shashamne, Kofele, Ambo, Jibat, Holeta, Adea-Berga, Guder, Tikur-Inchini, Wonchi, Jeldu, Dendi and Elifeta were tested positive for at least one of the assayed viruses, respectively. The high occurrence of the viruses could be attributed to different factors including recycling of the infected potato tubers and cropping system, overlapping of potato growing seasons, presence of biological vector inside potato field and infected volunteer potato from previous seasons. Overall, more than 50 % of the assayed samples were tested positive for at least one virus in the majority of the surveyed fields.
Current crop yield losses due to the pathogen need to be quantified with independent studies so as to determine the magnitude of the problem in these areas.
description: Pest Managment Journal of Ethiopia , Vol. 16 (2012): Pest Managemernt Journal of Ethiopia
title: Recht und Protest
Creators: name: Horst, Johan
Publisher: name: Fachinformationsdienst für internationale und interdisziplinäre Rechtsforschung
Year: 2020
Subjects: subject: 340

description: In der neuen Folge des Law & Society Podcasts setzt sich Christian Volk mit aktuellen Formen des Protests auseinander, unterscheidet repressive und emanzipatorische Typen von Protest und geht auf das Verhältnis von Protest und demokratischer Partizipation ein. Dabei erörtert er das ambivalente Verhältnis von Recht und Protest und erklärt, warum bestimmten Protestformen ein utopisches Moment innewohnen kann und weshalb die Wirkung von Protest für die Gestaltung transnationaler politischer Prozesse dennoch nicht überschätzt werden sollte.
Long term sales forecasts of innovations - an empirical study of the consumer electronic market
Creators: name: Kaya, Maria
name: Steffens, Paul
name: Albers, Sonke
Publisher: name: Swinburne
Year: 2024

description: Entrepreneurial action, whether undertaken by firms small or large, new or old, involves the ability to recognise and exploit opportunities. This is a risky activity. The consumer electronic industry (the focus of this study) is characterized by high development and launch costs of technological innovations as well as high failure rates. Moreover, technological innovation tends to be an ongoing pursuit of consumer electronic companies. Accurate long term forecasting of sales, and understanding the drivers of those sales, assists managers to better recognise and exploit opportunities over the life cycle of a product category. In durable product categories such as consumer electronics, accurate long term forecasting models need to incorporate first and repeat purchases. This is important both because the latter represents a significant share of sales for durables over time, and because consumer requirements for product innovation develops as they become experienced, sophisticated users of the product. While traditional aggregate diffusion models for durables mostly consider first purchases only (e.g., Bass 1969 and its many extensions), less attention has been devoted to diffusion models considering repeat purchases. This is due to the fact that this research tradition has largely relied on secondary data which do not offer a distinction between first and repeat purchases. This makes it very difficult to assess the validity of any model incorporating repeat purchase. Therefore,our study undertakes a large primary data collection to address this issue. In the diffusion literature, there is no consensus regarding which repeat purchase model is most suitable for forecasting purposes. Most of these models are developed on the basis of aggregate annual sales data which do not provide any information on the individual buying behaviour. One weakness of the repeat purchase models published so far is the failure to measure heterogeneity of consumer's repeat purchasing behaviour. Thus, modelling this component adequately might lead to a better overall forecasting performance. For this reason, individual consumer data, rather than aggregate sales data, was collected in this study.
title: Pest Managment Journal of Ethiopia , Vol. 16 (2012): Pest Managemernt Journal of Ethiopia
title: Pest Managemernt Journal of Ethiopia
titleType: AlternativeTitle
Creators: name: Pest Managment Journal Of Ethiopia
Publisher: name: Pest Managment Journal of Ethiopia
Year: 2012

description: Report of an Olive Lace Bug Infestation on Olea europaea ssp. cuspidata (Wall, ex G. Don) P. S. Green in Desa’a Natural Forest, Northern Ethiopia...70-75
Cotton Mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcidae): a Newly Introduced Pest Threatening Cotton Production in Ethiopia...62-69
Reaction of Durum and Bread Wheat Varieties to Russian Wheat Aphid, Diuraphis noxia Attack under Irrigated Condition...49-56
Groundnut Rust (Puccinia arachidis) Management through Integration of Host Resistance with Fungicides at Babile, Eastern Ethiopia...39-48
Comparative Performance of Two Predatory Mites in Managing Western Flower Thrips in Protected Rose Flower Farms in Central Ethiopia...30-38
Incidence and Distribution of Potato Viruse Diseases in West Arsi and West Shewa Major Potato Growing Areas, Ethiopia...16-29
Cabbage Flea Beetles, Phyllotretaspp (Coleoptera: Chrysomelidae) Management on Ethiopian Mustard, Brassica carinata A. Braun, in Arsi Zone, Oromia...1-15