S. N. Chaudhary – författare

Islam, as a philosophy, a way of life and of course as a faith, has served like a lighthouse for the whole world. It has, as a force, influenced all civilizations. Be it education, social fabric or science, Islam has Left its impact in all the spheres. In fact, Islam is-basically a scientific and progressive religion. This series, unique in its presentation, is perhaps first of its kind, to take all the great events, developments and personalities in Islam, in its fold. All the significant aspects have been covered in these volumes. This multi-volume study is based on original(Holy Quran and Traditions) and other authentic sources: Arabic, Persian and Urdu books and manuscripts. for further comprehenion and comparative study, English books by Muslim scholars and as well as Western writers have also been consulted at length. The painstaking research and thorough study of thousands of pages by a team of scholars over a period of time, has resulted in an authentic, comprehensive, exhaustive, exclusive, gigantic and still interesting work, which is bound to fill a big vacuum in Islamic Studies. This voluminous work is based on authentic sources and material, available in libraries, institutes and some pnr.ate collections, as well. A r-h Bibliography; along with references is provided with each volume Lo prove the authenticity of the work and in order to guide the scholars and readers for further studies. This modest work should; rove to be of worth for those, who arc kind enough to peruse it and may desire to make use of it for their academic enrichment. Hopefully, these volumes would be able to satisfy the urge of all those who desire to know about real Islam and also to create a new awareness, regarding this religion, as a radical discipline, based on reason and opposed to fundamentalism and dogmatism. Though, a small effort yet its rational treatment and radical approach make it different from other works on the same or related subjects.

A cell is the smallest unit of living matter that is able to function independently, consisting of protoplasm a complex living material -and made up of three basic parts, a nucleus, cytoplasm and a cell membrane. There is a great amount of variability in cells with respect to their shape. Some of them change their shape frequently, while others have typical shapes, For instance, amoebae, leucocytes, diatoms, desmids and acetabularia are to name a few.The size of a cell also varies as per the number of chromosomes. Though it is the basic and the smallest part of a living matter, it has its own independent world of complexities and functionalities. Like any living organism, it, too, has to pass many stages of life, like, formation, breakage, death, reformation etc. All these points and the chemical processes, a cell undergoes, are the subject of Cell Biology.An authoritative and compact Encyclopaedia of Cell Biology, hopefully, it would prove to be beneficial for students and scholars alike.

यद्यपि अंग्रेजी भाषा में पर्यावरण विज्ञान एवं पर्यावरणीय मनोविज्ञान विषयों पर अनेक स्तरीय पुस्तकें उपलब्ध हैं, परन्तु हिन्दी भाषी विद्यार्थियों एवं विषय में रुचि रखने वाले अध्येताओं हेतु हिन्दी में इस विषय पर पाठ्य पुस्तकों का अभाव है। लेखकों द्वारा इस विषय पर हिन्दी में पुस्तक लेखन इस अभाव की पूर्ति का एक विनम्र प्रयास है। इस पुस्तक के विभिन्न अध्यायों में पर्यावरणीय मनोविज्ञान के क्षेत्र में किये गये शोधों पर आधारित ज्ञान को समाहित करके विषय की सम्यक् विवेचना की गयी है। इस पुस्तक की विषय-वस्तु का संगठन विभिन्न विश्वविद्यालयों एवं प्रतियोगी परीक्षाओं के पाठ्यक्रमों को ध्यान में रख कर किया गया है। लेखकों का यह विश्वास है कि यह पुस्तक हिन्दी माध्यम के स्नातक एवं स्नातकोत्तर कक्षाओं के छात्रों के लिये उपयोगी सिद्ध होगी। यह पुस्तक उन विद्यार्थियों को समर्पित है जिनकी रूचि एवं आवश्यकता ने हमें इस विषय पर पुस्तक लेखन के लिये प्रेरित किया।