CDA-OPTIMUM DESIGN FOR PARAMETER ESTIMATION, MINIMIZING THE AVERAGE VARIANCE AND ESTIMATING THE AREA UNDER THE CURVE

The aim of this paper is to introduce a new compound optimum design named CDA, by combining the C-optimality, D-optimality, and A-optimality together. The significance of the proposed compound gains from that it can be used for parameter estimation, minimizing the average variance and model estimation simultaneously

POISSON TRANSMUTED LINDLEY DISTRIBUTION

The main purpose of this paper is to introduce a new discrete compound distribution, namely Poisson Transmuted Lindley distribution (PTL) which offers a more flexible model for analyzing some types of countable data. The proposed distribution is accommodate unimodel, bathtub as well as decreasing failure rates. Most of the statistical and reliability measures are derived. For the estimation purposes the method of moment and maximum likelihood methods are studied for PTL. Simulation studies are conducted to investigate the performance of the maximum likelihood estimators. A real life application for PTL is introduced to test its goodness of fit and examine its performance compared with some other distributions

WEIBULL SEMIPARAMETRIC REGRESSION MODELS UNDER RANDOM CENSORSHIP

 Semiparametric regression is concerned with the flexible combination of non-linear functional relationships in regression analysis. The main advantage of the semiparametric regression models is that any application benefits from regression analysis can also benefit from the semiparametric regression. In this paper, we derived a consistent estimator of parametric portion and nonparametric portion in Weibull semi-parametric regression models under random censorship

New Generalized Definitions of Rough Membership Relations and Functions from Topological Point of View

In this paper, we shall integrate some ideas in terms of concepts in topology. In fact, we introduce two different views to define generalized membership relations and functions as mathematical tools to classify the sets and help for measuring exactness and roughness of sets. Moreover, we define several types of fuzzy sets. Comparisons between the induced operations were discussed. Finally, many results, examples and counter examples to indicate connections are investigated

Geological setting as an important factor in mangrove plantation site selection in the Red Sea

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Biological control of grape berry moths Eupoecilia ambiguella Hb. and Lobesia botrana Schiff. (Lepidoptera: Tortricidae) by using egg parasitoids of the genus Trichogramma

Die vorliegende Arbeit wurde in der Zeit von November 2000 bis September 2003 durchgeführt, um einmal das natürliche Vorkommen von Trichogramma-Arten im Rheingau zu untersuchen und um die Wirksamkeit von 17 Trichogramma- Arten/Stämmen gegen die Traubenwickler Eupoecilia ambiguella Hb. und Lobesia botrana Schiff zu ermitteln. Zwei Trichogramma-Arten, Trichogramma cacoeciae (Cac-01) und T. evanescens (Eva-01) wurden während der Untersuchungen neu in den Weinbergen geködert. Drei Arten, T. cacoeciae (Cac-com), T. dendrolimi (Den-com) und T. evanescens (Eva-com) waren kommerziell genutzte Stämme. Die Arten T. cacoeciae (Cac-Ea) und T. cacoeciae (Cac-Lb) wurden ausschließlich auf Traubenwicklereiern gezüchtet. Alle andren Arten wurden ständig in kleinen Laborzuchten auf Sitotroga cerealella Eiern vermehrt. Um die Eignung von 14 Trichogramma-Arten/Stämmen für die Bekämpfung von Traubenwicklern zu ermitteln, wurden verschiedene Lebensparameter untersucht. Lebensdauer: Bei ständiger Verfügbarkeit von frischen Wirtseiern war die Lebensdauer von adulten Trichogramma-Arten/Stämme aus Lobesia-Eiern signifikant länger als aus Eupoecilia-Eiern. Die T. cacoeciae-Stämme lebten erheblich länger als die Stämme aller anderen Arten. In Lobesia-Eiern lag die Lebensdauer zwischen 7,6 Tagen für T. piceum und 27 Tagen für T. cacoeciae (Cac-Ea). Während in Eupoecilia-Eiern die Lebensdauer 5,3 Tage für T. piceum und 20,4 Tage für T. cacoeciae (Cac-sit) betrug. Parasitierungspotential: Dieses wurde bei den untersuchten Trichogramma -Arten durch die Wirtseier deutlich verändert. Das Parasitierungspotential der T. cacoeciae-Stämme war höher als das fast aller anderen Trichogramma Arten/Stämme. So variierte es in Lobesia-Eiern von 81,4 parasitierten Eiern/Weibchen bei T. evanescens (Eva-01) bis zu 104,2 bei T. cacoeciae (Cac-01). Im Vergleich dazu betrug das Parasitierungspotential in Eupoecilia-Eiern nur 34,4 bei T. evanescens (Eva-01) und 64,1 bei T. cacoeciae (Cac-01). Natürliches Auftreten: Weiterhin wurde das natürliche Auftreten und die Populationsfluktuation von einheimischen Trichogramma-Arten in Weinbergs-lagen und angrenzenden Hecken des Rheingaus untersucht. In ökologisch bewirtschafteten Rebflächen, inmitten eines großen reinen Rebareals, wurden keine Trichogramma gefunden, obwohl sich diese Flächen durch eine sehr artenreiche Begrünung mit einer Vielzahl von annuellen Blütenpflanzen auszeichneten. Dagegen wurden regelmäßig in den integriert bewirtschafteten Weinbergen Trichogramma nachgewiesen. Sie waren auch in den umgebenden Heckenstreifen weit verbreitet. Drei eindeutige Aktivitätsperioden von Trichogramma wurden in den Weinbergen beobachtet, die durch Hecken umgeben waren, während nur zwei Perioden in nicht von Hecken umgebenen Weinbergsanlagen zu beobachten waren. Trichogramma zeigte im Freiland Parasitierungsaktivitäten von April bis Anfang Juni, im Juli und im September. Aktive Trichogramma wurden eine Woche früher in den Heckenstreifen ermittelt als in den Weinbergen. Die einheimischen Arten, Trichogramma cacoeciae und T. evanescens, wurden in den Weinbergen und angrenzenden Hecken nachgewiesen. T. cacoeciae trat immer stärker als T. evanescens auf. T. evanescens wurde dafür ca. 7 Tage früher als T. cacoeciae nachgewiesen. Im unteren Laubwandbereich (80-120 cm) war Trichogramma am weitesten verbreitet und hielt sich vorzugsweise auf der Blattunterseite auf. Trichogramma konnte häufiger in den Randzeilen nahe den Hecken, als in Rebzeilen des mittleren Weinbergsbereichs nachgewiesen werden. Feldversuch: In einem Feldversuch über zwei aufeinander folgende Jahre wurde die Wirksamkeit von drei Trichogramma-Arten zur Bekämpfung der Traubenwickler L. botrana und E. ambiguella überprüft. Der Wirkungsgrad der verwendeten Trichogramma lag zwischen 62,8% und 83,2%. Die Trichogramma cacoeciae-Stämme waren zur Bekämpfung von Traubenwicklern am effektivsten. T. cacoeciae (Cac-94), ein Weinbergstamm, war mit einem Wirkungsgrad von 83,2% leistungsfähiger als T. cacoeciae (Cac-com) ein kommerzieller Stamm, mit 77,6%. Mit T. evanescens (Eva-01), einem Weinbergstamm, wurde ein Wirkungsgrad von 74,5% erzielt, während mit T. evanescens (Eva-com) nur 62,8% erreicht wurden. Die neu geköderten Trichogramma-Arten waren effektiver als die Laborstämme. Die vorliegenden Untersuchungsergebnisse zeigen, dass die Arten T. cacoeciae und T. evanescens und deren Stämme als potentielle Kandidaten für zukünftige Feldfreilassungen und Massenzuchten im Rahmen von Pflanzenschutz-programmen zur biologische Bekämpfung von Traubenwicklern sehr gut geeignet sind.The present work was carried out during the period from November 2000 to September 2003 in order to survey naturally occurring populations of Trichogramma in the Rheingau area, and to evaluate the efficiency of 17 Trichogramma species/strains against the grape berry moths (GBM) Eupoecilia ambiguella Hb. and Lobesia botrana Schiff. Two species Trichogramma cacoeciae (Cac-01) and T. evanescens (Eva-01) were recently collected from the vineyards of Rheingau during the study. Three species T. cacoeciae (Cac-com), T. dendrolimi (Den-com) and T. evanescens (Eva-com) were commercially produced species. The remaining species were successively reared either on GBM eggs (T. cacoeciae Cac-Ea and T. cacoeciae Cac-Lb) or on Sitotroga cerealella eggs. In order to evaluate the suitability of 14 Trichogramma species/strains for controlling the grape berry moths, their various life history parameters during their life span were determined. Longevity of Trichogramma species/strains reared on Lobesia eggs was significantly longer compared to Eupoecilia eggs. T. cacoeciae strains lived significantly longer than all other strains. In Lobesia eggs, the life span of various Trichogramma species/strains ranged from 7.6 to 27 days for T. piceum and T. cacoeciae (Cac-Ea), respectively. Whereas, in Eupoecilia eggs, the life span of various Trichogramma species/strains ranged between 5.3 to 20.4 days for T. piceum and T. cacoeciae (Cac-sit), respectively. Parasitism potential of Trichogramma species/strains was strongly dependent on the host species. Parasitism potential of T. cacoeciae strains was clearly higher than in nearly all of other Trichogramma strains. Parasitism potential of Trichogramma strains varied from 81.4 (T. evanescens Eva-01) to 104.2 (T. cacoeciae Cac-01) parasitized eggs in Lobesia eggs. By contrast, it ranged from 34.4 (T. evanescens Eva-01) to 64.1 (T. cacoeciae Cac-01) parasitized Eupoecilia eggs. Natural occurrence and the population fluctuation of native Trichogramma species in both the vineyards of Rheingau and surrounding hedges were studied. There were no Trichogramma recorded in the ecologically managed vineyards. In vineyards managed according to IPM, Trichogramma were regularly proven, being more widespread in those surrounded by hedge strips. Three distinct activity periods of Trichogramma were observed in vineyards which were surrounded by hedges, whereas, only two periods in the non-surrounded. Trichogramma showed the greatest activity from April to the beginning of June, in July and in September. Trichogramma was detected one week earlier at hedge strips than in vineyards. Two native species of Trichogramma, T. cacoeciae and T. evanescens were discovered in vineyards and bordering areas, the first species being more frequent. T. evanescens was recorded few days earlier than T. cacoeciae. Both Trichogramma spp. were widespread at the lowest canopy level (80-120 cm) and preferably on the underside of the leaves. Moreover, Trichogramma was more abundant in the edge vine rows (near hedges) than in middle ones. Field experiments were conducted to evaluate the efficacy of Trichogramma species, to control L. botrana and E. ambiguella in two successive years. The efficacy (damage reduction) of Trichogramma strains used varied between 62.8% and 83.2%. In the present study, Trichogramma cacoeciae strains were more efficient in controlling the grape berry moths, with 77.6% and 83.2% reduction in grape damage for T. cacoeciae (Cac-com) (commercial strain) and T. cacoeciae (Cac-94) (vineyard strain), respectively. T. evanescens (Eva-01) (vineyard strain) achieved 74.5% reduction in grape damage, whereas the commercial strain recorded only 62.8%. It was also found that newly collected Trichogramma species/strains performed better than commercial ones. The results of this study showed that, T. cacoeciae and T. evanescens and their strains could be potential candidates for future mass rearing and field release programs for biocontrol of grape berry moths in the vineyards

Fibrewise Near Compact and Locally Near Compact Spaces

In this paper we define and study new concepts of fibrewise topological spaces over B namely, fibrewise near compact and fibrewise locally near compact spaces, which are generalizations of well-known concepts near compact and locally near compact topological spaces. Moreover, we study relationships between fibrewise near compact (resp., fibrewise locally near compact) spaces and some fibrewise near separation axioms. Keywords: Fibrewise topological spaces, Fibrewise near compact spaces, Fibrewise locally near compact spaces, Fibrewise near separation axioms. Math. Subject Classification 2010: Primary 55R70, 55P05, Secondary 54C05, 54C08, 54C10

Mappings on weakly Lindelöf and weakly regular-Lindel¨of spaces

[EN] In this paper we study the effect of mappings and some decompositions of continuity on weakly Lindelöf spaces and weakly regular-Lindelöf spaces. We show that some mappings preserve these topological properties. We also show that the image of a weakly Lindelöf space (resp. weakly regular-Lindelöf space) under an almost continuous mapping is weakly Lindelöf (resp. weakly regular-Lindelöf). Moreover, the image of a weakly regular-Lindelöf space under a precontinuous and contracontinuousmapping is Lindelöf.Fawakhreh, AJ.; Kiliçman, A. (2011). Mappings on weakly Lindelöf and weakly regular-Lindel¨of spaces. Applied General Topology. 12(2):135-141. doi:10.4995/agt.2011.1647.SWORD13514112

Proportional Hazard Bivariate Kumaraswamy Model Applied on Fish Mercury Concentration

International advisory bodies have developed guidelines for testing mercury and aquatic items to protect human health and international trade. The mercury absorption in fish has a great effect on human health. For modeling this problem, a new bivariate distribution using the proportional hazard rate (PHR) model with Kumaraswamy marginal called BKPH is derived and studied via statistical properties and reliability measures. Moreover, several methods of parameter estimation are discussed, including maximum likelihood estimation (MLE), method of moments estimation (MME), and inference function for margins estimation (IFM). In the simulation study, the performance of estimators depending on their estimation methodologies is compared. Finally, a comparative study of the proposed BKPH with several bivariate Kumaraswamy distributions via goodness of fit criteria was introduced. The results of the study proved the potentiality of the BKPH model and has a best fitting on mercury fish absorption data