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This paper examines a proof of incompleteness by Stanisław Świerczkowski in a paper entitled “Finite sets and Gödel’s incompleteness theorems”. Świerczkowski’s proof is different to most other proofs of incompleteness because the formal system that is used for the proof is a system of hereditarily finite sets. Świerczkowski claims that this makes his proof simple and elegant, and that it has enabled his proof to be complete and without any gaps or omissions, nor relying on references to other publications. Świerczkowski claims that for this reason his proof his superior to most other proofs of incompleteness. However, the author makes an elementary error in his proof that renders the proof invalid; his proof relies on a confusion regarding the domain of the variables involved. Świerczkowski bases his proof on an assumption that a certain formula has a certain domain, whereas a logical analysis demonstrates that this is not the case.
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The modern man has evolved through the time. Fashion is no longer the domain of the women as men now look forward to dress for success more than ever. Like women, every man should absolutely know how to dress. Today’s men are ready to take on the world with brimming confidence. And a large part of this renewed confidence comes from the way a man dresses.
Pop ups are currently used in all over the domain because of its easy obtain ability. Largely two types of pop ups are fairly popular now. They are party tents plus festival tents. Party tents are extensively used in persons for any excursion or any family gathering. These kinds of tents are made of outstanding kinds of polyester substantial and they are proficient to protect UV ray of sun and rain. They are correspondingly made with fire retardant resources and rust resistant power covered steel frame.
The use of instructional resources makes teaching and learning less arduous. It enhances learners’ ability to grasp what is taught with ease. Yet most teachers fail to apply the relevant teaching and learning resources in the instructional intercourse. This study explored the views of Senior High School accounting students and teachers on the use of instructional resources in accounting instructions. In all, 12 accounting teachers, who were selected purposely, and 151 accounting students, who were selected randomly, from four selected Senior High schools in Cape Coast Metropolis responded to a set of questionnaire. Frequency and percentages were used in the data analysis. The study found that accounting teachers hardly used instructional resources to promote understanding in accounting lessons. In most cases, the appropriate instructional resources that could be used were not available. It was further noted that the key barriers to use the appropriate instructional
Tobacco related oral cancer occurs due to accumulation of genetic alterations induced by the genotoxins present in betel quid. The objective of the study was evaluate the cytogenetic damage in the peripheral blood of oral cancer patients and control subjects by anaysing the structural aberrations (STAs) .The frequency of STAs was analyzed in 60 histopathologically confirmed oral potentially malignant disorders (OPMDs) and oral squamous cell carcinoma (OSCC) patients. STAs showed a significant P value between the Controls, OPMDs & OSCC cases through ANOVA.
This paper presents the generation of optical carrier suppressed signal for RoF system. RoF refers to an analog transmission over fiber technology where light is modulated by radio frequency (RF) signal and transmitted over an optical fiber link to wireless access. Both optical carrier suppression and signal modulation are made by using a Dual-Drive Mach-Zehnder modulator (DD-MZM). Suppressed carrier modulation is achieved by biasing at the null point of DD-MZM. Optical carrier suppression improves the performance of RoF system such as link gain and noise figure (NF).In this research, a single RF at 2100 MHz having data rate of a 1 Gbps modulates the 1550.12 nm optical carrier in the DD-MZM. In this paper, the carrier suppression and performances of RoF system are investigated by theory and simulation. The various values of optical carrier suppression ratio can be obtained by adjusting the extinction ratio of the DD-MZM.
In this paper a new scheme is proposed for progressive image transmission over coded Orthogonal Frequency Division Multiplexing (OFDM) system with Low Density Parity Check Coding (LDPC). Trigonometric transforms are used in this scheme for improving the performance of the OFDM systems and reducing the PeakTo- Average Power Ratio (PAPR) of OFDM signal. It improves the error resilience ability and transmission efficiency for progressive image transmission over Additive White Gaussian Noise (A WGN) channel. The Set Partitioning In Hierarchical Trees (SPIHT) algorithm is used for source coding of the images to be transmitted. In the proposed scheme the transmit data sequence of the OFDM signal after Inverse Fast Fourier Transform (lFFT) is grouped into in-phase and in-quadrature components, then each component is transformed using either the Discrete Cosine Transform (DCT) or the Discrete Sine Transform (DST). The simulation results show that adding the DST to the system im
Moreover, with increasing frequency, employers and employees alike are seeking answers to the question: many employers legally monitor employee e-mail and Internet use? Administrators of any of these hosts can easily eavesdrop on the mail traffic.