Striking enhancement at the site of radiation for nivolumab-induced Stevens-Johnson syndrome

Stevens-Johnson syndrome is a rare adverse cutaneous drug reaction characterized by epidermal detachment of <10% body surface area with an average mortality rate of 1-5%. The mechanism of SJS is not fully understood. Nivolumab is a monoclonal antibody directed against programmed cell death-1 protein (PD-1), a receptor with immune checkpoint inhibitory and antineoplastic activities. We present a case of SJS in a patient being treated with anti-PD-1 therapy nivolumab for metastatic squamous cell carcinoma of the oropharynx. This case is unusual because of the severe accentuation with striking enhancement at his prior radiation site and in the cutaneous region with heavier tumor burden from his metastatic disease. This reaction may give insight to the underlying pathophysiology of SJS, suggesting that immune checkpoint inhibitors can activate T-cells to target keratinocytes and that external factors may be involved in creating distinct epitopes for T-cell recognition. We hope this case adds to the body of knowledge in the pathogenesis of Stevens-Johnson syndrome and cutaneous adverse events seen with checkpoint inhibitors

On the generalized Hartley-Hilbert and Fourier-Hilbert transforms

In this paper, we discuss Hartley-Hilbert and Fourier-Hilbert transforms on a certain class of generalized functions. The extended transforms considered in this article are shown to be well-defined, one-to-one, linear and continuous mappings with respect to δ and Δ convergence. Certain theorems are also established

Combined effect of frustration and dimerization in ferrimagnetic chains and square lattice

Within the zero-temperature linear spin-wave theory we have investigated the effect of frustration and dimerization of a Heisenberg system with alternating spins $s_{1}$ and $s_{2}$ on one- and two-dimensional lattices. The combined effect most visibly appears in the elementary excitation spectra. In contrast to the ground state energy that decreases with dimerization and increases with frustration, the excitation energies are shown to be suppressed in energy by both dimerization and frustration. The threshold value of frustration that signals a transition from a classical ferrimagnetic state to a spiral state, decreases with dimerization, showing that dimerization further helps in the phase transition. The correlation length and sublattice magnetization decrease with both dimerization and frustration indicating the destruction of the long-range classical ferrimagnetic. The linear spin wave theory shows that in the case of a square lattice, dimerization initially opposes the frustration-led transition to a spiral magnetic state, but then higher magnitudes of lattice deformation facilitate the transition. It also shows that the transition to spiral state is inhibited in a square lattice beyond a certain value of dimerization.Comment: 8 pages, latex, 12 postscript figure

Educational Dimension of Woman's Character in the Narration's of Prophets as Stated in the Holy Qur'an

The Holy Qur'an has addressed the needs of women and their status in a way never done before in any other religious text. Woman's exalted position in Islam is due, primarily, to her role as a child rearer. It is she who is considered the "first madrasah" (first school) by Islam, and it is from her that children will learn about their responsibility as future 'standard bearers' of Islam and society. The research examines stories and biographies of women in the Qur'an, narrated by various prophets (peace be upon them) through the ages. These stories have been drawn from sound Islamic sources. not the doubtful narrations of Israelite scriptures, showing, through their life stories, women's attitude nature, some positive and others negative. This provides an authentic and comprehensive view of Muslim women from the Qur'anic perspective. It puts forward an educational model for women to realize their true role in the challenging times in which we live. By studying the attitudes and dispositions of women in the Holy Qur'an and the Sunna of the Prophet Muhammad (peace and blessings be upon him) the research illustrates the merits. morals and role of women as educators in the family, as well as society. It also shows the extent to which a Muslim women can harm or benefit each member of her family. The study also shows the scope of educational techniques in the Holy Qur'an and their impact on the attitudes and character of women. It delineates the educational role of women and the features of women's character through investigation of previous religions and comparison with those in Islam. In this way, we can become more acquainted with the characteristics of women, her tasks, rights, duties and the type of work suited to her outside the family