Method for constructing periodic orbits in nonlinear dynamic systems

Method is modification of generalized Newton-Ralphson algorithm for analyzing two-point boundary problems. It constructs sequence of solutions that converge to precise dynamic solution in the sequence limit. Program calculates periodic orbits in either circular or elliptical restricted three-body problems

Computer program offers new method for constructing periodic orbits in nonlinear dynamical systems

Computer program uses an iterative method to construct precisely periodic orbits which dynamically approximate solutions that converge to precise dynamical solutions in the limit of the sequence. The method used is a modification of the generalized Newton-Raphson algorithm used in analyzing two point boundary problems

Rotating charged AdS solutions in quadratic f(T)f(T) gravity

We present a class of asymptotically anti-de Sitter charged rotating black hole solutions in $f(T)$ gravity in $N$-dimensions, where $f(T)=T+\alpha T^{2}$. These solutions are nontrivial extensions of the solutions presented in \cite{Lemos:1994xp} and \cite{Awad:2002cz} in the context of general relativity. They are characterized by cylindrical, toroidal or flat horizons, depending on global identifications. The static charged black hole configurations obtained in \cite{Awad:2017tyz} are recovered as special cases when the rotation parameters vanish. Similar to \cite{Awad:2017tyz} the static black holes solutions have two different electric multipole terms in the potential with related moments. Furthermore, these solutions have milder singularities compared to their general relativity counterparts. Using the conserved charges expressions obtained in \cite{Ulhoa:2013gca} and \cite{Maluf:2008ug} we calculate the total mass/energy and the angular momentum of these solutions.Comment: 11 pages, Version accepted in EPJ

Neutrosophic Crisp α-Topological Spaces

In this paper, a generalization of the neutrosophic topological space is presented. The basic definitions of the neutrosophic crisp α-topological space and the neutrosophic crisp α-compact space with some of their characterizations are deduced. Furthermore, we aim to construct a netrosophic crisp α-continuous function, with a study of a number its properties

Biostimulation and reproductive performance of artificially inseminated rabbit does (Oryctolagus cuniculus)

[EN] Biostimulation is a non-hormonal and practical technique that has not yet been widely utilised when applied immediately before insemination to improve reproductive efficiency in livestock species. This study was conducted to determine the influence of short-term male biostimulation on behavioural and reproductive performance of inseminated rabbit does. A total of 142 female New Zealand White rabbits were randomly assigned to 3 groups. Females were either exposed to male odour (Odour group) or an adult aproned male (Male group), while the remaining does that were neither exposed to the male odour nor the adult male are considered the control group. All females were inseminated after the 2 h exposure session. Conception rates were determined by abdominal palpation 12 d after insemination. The results showed that conception rate of the male odour group (79.59%) was greater than that of male presence group (76.09%) and that of the control group (68.09%). Moreover, biostimulated does showed significant behavioural activities during the 2 h exposure session compared to the control group. Although no significant differences were recognised, litter size at birth and at weaning was slightly increased in biostimulated compared to control females. Nor were there any significant difference in serum oestradiol concentrations between treated groups. Conclusively, short-term 2 h biostimulation of rabbit does resulted in the appearance of various behavioural responses followed by differences in conception rates between groups after routine artificial insemination.El-Azzazi, FE.; Hegab, IM.; Hanafy, AM. (2017). Biostimulation and reproductive performance of artificially inseminated rabbit does (Oryctolagus cuniculus). World Rabbit Science. 25(4):313-321. doi:10.4995/wrs.2017.7446SWORD31332125

Effect of Long Term Pulsed Electromagnetic Field on Postmenopausal Stress Urinary Incontinence

Pulsed electromagnetic therapy is used to activate the pudendal nerve, which then activates the pelvic floor musculature, which is supposed to increase urethral closure and improve the stress urinary incontinence (SUI). Aim of the study: was to detect the long-term efficacy of pulsed electromagnetic therapy on post-menopausal SUI. Subjects and Methods: Forty postmenopausal females complaining from mild or moderate degree of SUI. They were recruited randomly from outpatient clinic of gynecological department in Al-Mataria teaching hospital, Egypt. Their ages ranged from 50 to 60 years old. The BMI of the patients was not exceeding 35 Kg/m2. They were multipara. Their deliveries were normal vaginal delivery. All women were treated by pulsed electromagnetic field 2 sessions/ week for 8 weeks. The vaginal squeeze pressure and symptoms of SUI were assessed pre-magnetic therapy, post magnetic therapy at the end of 8 weeks, follow up at 3, 6& 12 months by biofeedback (Myomed 632v) and (UDI-6) respectively. Results: The vaginal squeeze pressure was significantly increased (p= 0.001), and UDI-6 was significantly decreased (p= 0.001), at post magnetic therapy, follow up at 3, 6& 12 months when compared with their corresponding values measured pre-magnetic therapy. There was no significant difference (p\u3e 0.05) between post magnetic therapy measurements compared at different time assessment at 3, 6& 12 months. Conclusion: The encouraging results of our study supported that PEMF has long -term effect as a unique therapeutic modality for the treatment of postmenopausal SUI

Energy and indoor environmental performance of typical Egyptian offices : survey, baseline model and uncertainties

Egyptian electricity demands have increased in recent years and are projected to grow further with significant economic and social impacts. Recently, mandatory and voluntary building codes based on international standards have been increasingly adopted. The performance of existing Egyptian buildings is not well understood making the impact of these new codes uncertain. This paper aims to provide insights into existing Egyptian building performance, and elaborate a process for developing a representative model to assist in future policy. The work presented is for office buildings but intended to be widely replicable. An energy survey was carried out for 59 Egyptian offices, categorised by building service type, it was observed that energy use increases as building services increase, and existing Egyptian offices use less energy than benchmarks. A more detailed investigation for a case study office was carried out, to inform detailed model calibration. This provided insight into energy use, thermal comfort and environmental conditions, and revealed high variability in behaviours. A calibrated model was created for the case study office, then a baseline model and input parameter sets created to represent generalised performance. Future uses including assessment of the impact of codes are discussed, and further replication potentials highlighted

Pengaruh Kualifikasi Akademik dan Prestasi Akademik Dosen terhadap Mutu Pembelajaran

Jenis penelitian ini adalah penelitian kuantitatif dengan pendekatan metodologis bercorak positivistic dan pendekatan ilmiah yang meliputi pendekatan pedagogis, psikologis, dan sosiologis. Responden dalam penelitian ini adalah dosen unismuh Makassar yang berjumlah 83 orang dengan teknik pengambilan sampel secara purposive(Purposive Sampling) Metode pengumpulan data yang digunakan adalah observasi, dokumentasi dan koesioner. Teknik pengolahan data dilakukan melalui analisis deskriptik dan analisis linear berganda. Hasil penelitian yang diperoleh adalah : 1) Tingkat Kualifikasi akademik Dosen di Unismuh Makassar berkategori baik dengan indicator jenjang pendidikan (74,7%), penguasaan materi (79,55), metode (73,1%), media dan sumber belajar (92,8%), dan kemampuan interaksi edukasi dalam proses belajar mengajar (98,8%) 2) Tingkat Prestasi Akademik Dosen di Unismuh Makassar berdasarkan indikator. kemampuan lisan, kemampuan tulisan, keterampilan , dan kemampuan pemecahan masalah berada pada kategori sedang. 3) Mutu Pembelajaran di Unismuh Makassar berdasarkan indicator input, proses, out put dan outcome berada pada kategori tinggi. 4) Tidak terdapat pengaruh yang signifikan kualifikasi akademik terhadap mutu pembelajaran di unismuh Makassar terbukti dari nilai signifikansi 0, 502F tabel, berarti nilai signifikan lebih kecil dari nilai probabilitas (0,03< 0, 05) yang berarti bahwa kualifikasi akademik dan perstasi akademik Dosen secara simultan berpengaruh signifikan terhadap mutu pembelajaran di Unismuh Makassar

Hiding data in images using steganography techniques with compression algorithms

Steganography is the science and art of secret communication between two sides that attempt to hide the content of the message. It is the science of embedding information into the cover image without causing a loss in the cover image after embedding.Steganography is the art and technology of writing hidden messages in such a manner that no person, apart from the sender and supposed recipient, suspects the lifestyles of the message. It is gaining huge attention these days as it does now not attract attention to its information's existence. In this paper, a comparison of two different techniques is given. The first technique used Least Significant Bit (LSB) with no encryption and no compression. In the second technique, the secret message is encrypted first then LSB technique is applied. Moreover, Discrete Cosine Transform (DCT) is used to transform the image into the frequency domain. The LSB algorithm is implemented in spatial domain in which the payload bits are inserted into the least significant bits of cover image to develop the stego-image while DCT algorithm is implemented in frequency domain in which the stego-image is transformed from spatial domain to the frequency domain and the payload bits are inserted into the frequency components of the cover image.The performance of these two techniques is evaluated on the basis of the parameters MSE and PSNR