Corroboration and conditional positive relevance

Based on different post-bid market competition models, this paper studies expected revenue of government in English auction for two common resources usage licenses. Each bidder adjusts their competitors’ cost belief with information revealed in English auction process and decides product quantities in post-bid market if he wins the bid. After calculation and analysis, the following conclusions are reached: English auction would be profitable for government in Cournot and Stackelberg post-bid market competition. Government expected revenue experiences positive relevance with market size and number of bidders in two models. Moreover, government benefits more from Cournot competition in product market rather than Stackelberg competition.

Gentzen formulations of two positive relevance logics

Studia Logica ◽

10.1007/bf02584063 ◽

1981 ◽

Vol 40 (3) ◽

pp. 311-311 ◽

Cited By ~ 1

Author(s):

Aleksandar Kron

Keyword(s):

Relevance Logics ◽

Positive Relevance

Acute and Subacute Toxicity of Bisphenol A on Zebrafish (Danio rerio)

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.356-360.138 ◽

2011 ◽

Vol 356-360 ◽

pp. 138-141 ◽

Cited By ~ 3

Author(s):

Xiao Ning Chen ◽

Xiao Ming Hang ◽

Wei Bo Ke ◽

Zhan Yuan Ma ◽

Ye Qing Sun

Keyword(s):

Bisphenol A ◽

Adult Male ◽

Zebrafish Embryos ◽

Mating Ability ◽

Subacute Toxicity ◽

Study Results ◽

Toxicity Analysis ◽

Carrier Solvent ◽

Dose Dependent ◽

Positive Relevance

In this paper, acute and subacute toxicity effects of on an environmental estrogen, Bisphenol A (BPA), on zebrafish were investigated. The median lethal concentration (LC50) and the median effect concentration (EC50) of BPA to zebrafish embryos and larvae were calculated. Additionally, effects of BPA on vitellogenin (VTG) gene expression and mating ability to adult male zebrafish were investigated for subacute toxicity analysis. Differed from previous studies on toxicity of BPA, acetone, a relative low-level toxic solution, was adopted as the carrier solvent of BPA in this study. Results showed that the values of 24h、48h and 72h LC50 of BPA on zebrafish embryos and larvae were 16.667mg/l, 9.944 mg/ l, 8.222 mg/l and 20.938 mg/l, 15.170 mg/l, 10.943 mg/l, respectively. The values of 24h and 48h EC50 of BPA on zebrafish embryos were 11.111mg/l and 8.183mg/l, while the valuSubscript textes of 24h, 48h and 72h EC50 of BPA on zebrafish larvae were 14.56mg/l, 12.133mg/l and 9.658mg/l, respectively. Subacute toxicity analysis demonstrated VTG gene was induced in male zebrafish by BPA and the increasing of its expression was both time- and dose-dependent. In addition, BPA could severely inhibit the mating ability of adult male zebrafish and a positive relevance was found between the inhibition and the concentration of BPA exposed.

Discussion Note: Positive Relevance Defended*

Philosophy of Science ◽

10.1086/381416 ◽

2004 ◽

Vol 71 (1) ◽

pp. 110-116 ◽

Cited By ~ 4

Author(s):

Sherrilyn Roush

Keyword(s):

Positive Relevance ◽

Discussion Note

A Challenge to Positive Relevance Theorists: Reply to Roush*

Philosophy of Science ◽

10.1086/423629 ◽

2004 ◽

Vol 71 (4) ◽

pp. 521-524 ◽

Cited By ~ 1

Author(s):

Peter Achinstein

Keyword(s):

Positive Relevance

Mining Positive Relevance Feedback to Determine User Information Needs

Arabian Journal for Science and Engineering ◽

10.1007/s13369-014-1463-2 ◽

2014 ◽

Vol 39 (12) ◽

pp. 8765-8774

Author(s):

Abdulmohsen Algarni

Keyword(s):

Relevance Feedback ◽

Information Needs ◽

Positive Relevance

Gentzen formulations of two positive relevance logics

Studia Logica ◽

10.1007/bf00713549 ◽

1980 ◽

Vol 39 (4) ◽

pp. 381-403 ◽

Cited By ~ 3

Author(s):

Aleksandar Kron

Keyword(s):

Relevance Logics ◽

Positive Relevance

Penerapan Desain Eksperimen Plackett-Burman dan Box-Behnken pada Analisis Voltametri Pulsa Diferensial untuk Penentuan Kadar Senyawa Kompleks Gd-DTPA

ALCHEMY Jurnal Penelitian Kimia ◽

10.20961/alchemy.16.1.35166.140-151 ◽

2020 ◽

Vol 16 (1) ◽

pp. 140

Author(s):

Santhy Wyantuti ◽

Ravenna Aristantia ◽

Yeni Wahyuni Hartati ◽

Husein H Bahti

Keyword(s):

Experimental Design ◽

Optimum Condition ◽

Differential Pulse Voltammetry ◽

Differential Pulse ◽

Limit Value ◽

Complex Detection ◽

Pulse Voltammetry ◽

Health Field ◽

Positive Relevance ◽

Paramagnetic Properties

Gadolinium merupakan salah satu golongan unsur tanah jarang yang menarik karena memiliki sifat paramagnetik yang tinggi. Pengkhelatan gadolinium dengan ligan dietilentriaminpentaasetat (DTPA) menghasilkan senyawa yang berguna dalam bidang kesehatan. Tujuan dari penelitian ini adalah menentukan kandungan unsur tanah jarang gadolinium sebagai kompleks dengan ligan DTPA secara voltametri pulsa diferensial dengan penerapan desain eksperimen Plackett-Burman dan Box-Behnken. Desain eksperimen Plackett-Burman digunakan untuk menyeleksi parameter yang memiliki relevansi positif terhadap respon arus. Parameter yang terpilih kemudian dioptimasi melalui desain eksperimen Box-Behnken sehingga diperoleh kondisi optimum tiap parameter. Parameter yang terseleksi meliputi konsentrasi ligan DTPA, waktu deposisi dan waktu kesetimbangan dengan nilai tiap parameter pada kondisi optimum masing-masing yaitu 150, 13 mgL-1, 60 detik dan 30 detik. Berdasarkan hasil pengukuran pada kondisi optimum didapat nilai presisi dan akurasi untuk kompleks Gd-DTPA yaitu 99,79% dan 93,42% dengan nilai limit deteksi dan kuantisasi untuk kompleks Gd-DTPA yaitu 3,97 mg/L dan 10,71 mg/L. The Application of Experimental Designs of Plackett-Burman and Box-Behnken in Differential Pulse Voltammetry Analysis for Gd-DTPA Complex Detection. Gadolinium is one of rare earth elements that is interesting because it has high paramagnetic properties. The gadolinium chelating with diethylentriaminpentaacetic acid (DTPA) ligands produces useful compounds in the health field. The purpose of this experiment is to determine amount of gadolinium as complex with DTPA on differential pulse voltammetry by applying Plackett-Burman and Box-Behnken experimental design. The method employed experimental design of Plackett-Burman to select factors, which have positive relevance to response. The selected factors are optimized based on experimental design of Box-Behnken to obtain the optimum condition each factors. The selected factors are ligand concentration, deposition time and equilibrium time with optimum value of 150 mgL-1, 60 s and 30 s, respectively. Based on the result of measurement at optimum condition, the precision and accuracy value for Gd-DTPA complex is 99.79% and 93.42% with detection and quantization limit value for Gd-DTPA complex is 3.97 mg/L and 10.71 mg/L.

Relevance of the Productive Course of Hair Beauty in Vocational High Schools to Industry Needs

Jurnal Pendidikan Teknologi dan Kejuruan ◽

10.21831/jptk.v24i1.18388 ◽

2018 ◽

Vol 24 (1) ◽

pp. 125-131

Author(s):

Ambiyar Ambiyar ◽

Asmar Yulastri ◽

Mimi Yupelmi ◽

Paryono Paryono

Keyword(s):

High Schools ◽

Data Collection ◽

High School Graduates ◽

Vocational High School ◽

Job Requirements ◽

Qualitative Descriptive ◽

Vocational High Schools ◽

Beauty Salons ◽

Industry Needs ◽

Positive Relevance

The problem primarily faced by vocational education institutions is a gap between skills taught at schools and skills required by the industries. This leads to the increasing unemployment rate of Vocational High School graduates. Thus relevant curriculum is required to satisfy the industry demands. This study aimed at analyzing the relevance of the productive course of hair beauty in Vocational High Schools to the job requirements in beauty salons in Padang. This study was qualitative descriptive. The data collection used interviews, observation and documentation. The data collection instruments consisted of observation sheets and interview guidelines. The data were analyzed using the stages of data reduction, presentation and conclusion. The results showed positive relevance of the productive course of hair beauty in Vocational High Schools to the job requirements in beauty salons in Padang. The skills learned in the schools were adequately relevant with the skills required by beauty salons, since from thirteen productive lessons taught in the schools, eleven of them were implemented and used in the workplaces.

An axiomatic version of positive semilattice relevance logic

Journal of Symbolic Logic ◽

10.2307/2273616 ◽

1981 ◽

Vol 46 (2) ◽

pp. 233-239 ◽

Cited By ~ 10

Author(s):

G. Charlwood

Keyword(s):

Natural Deduction ◽

Relevance Logic ◽

Truth Conditions ◽

Completeness Proof ◽

Relevant Implication ◽

Soundness And Completeness ◽

Minimal Modification ◽

Positive Relevance

In [8] and [9] Urquhart presented the semilattice semantics for a relevance logic with conjunction and disjunction. These semantics combined the simplest known semantics for relevant implication, with minimal modification of the truth conditions for conjunction and disjunction. A slightly different approach leads to the distinct positive relevance logic of [7] and [5]. Sound and complete axiomatic logics for the semilattice semantics were readily available, so long as disjunction was left out.The purpose of this paper is to report the remedy of this lack. In [1] the author developed work of Fine ([3], announced in [4]) and Prawitz [6] to show soundness and completeness of an axiomatic logic and two natural deduction logics, with respect to Urquhart's semantics. Thus Prawitz' positive relevance logic is equivalent to the semilattice logic, rather than the logic of [5]. We present here the axiomatic logic and show its equivalence to the semilattice semantics.In §1 the languages and logic are given, along with a few proof-theoretic remarks. In §2 the semantics are defined, and the soundness proof is sketched. In §3, the completeness proof is given.