चेन्नई और नीण्डकरा बन्दरगाह में अवतरित ब्राकिचूरन कर्कटों की जैवविविधता – एक झलक

कृपया पूरा लेखा पढ

A novel ferroelectric Rashba semiconductor

Fast, reversible, and low-power manipulation of the spin texture is crucial for next generation spintronic devices like non-volatile bipolar memories, switchable spin current injectors or spin field effect transistors. Ferroelectric Rashba semiconductors (FERSC) are the ideal class of materials for the realization of such devices. Their ferroelectric character enables an electronic control of the Rashba-type spin texture by means of the reversible and switchable polarization. Yet, only very few materials are established to belong to this class of multifunctional materials. Here, Pb$_{1−x}$Ge$_{x}$Te is unraveled as a novel FERSC system down to nanoscale. The ferroelectric phase transition and concomitant lattice distortion are demonstrated by temperature dependent X-ray diffraction, and their effect on electronic properties are measured by angle-resolved photoemission spectroscopy. In few nanometer-thick epitaxial heterostructures, a large Rashba spin-splitting is exhibiting a wide tuning range as a function of temperature and Ge content. This work defines Pb$_{1−x}$Ge$_{x}$Te as a high-potential FERSC system for spintronic applications

Prawn fauna (Crustacea: Decapoda) of India - An annotated checklist of the Penaeoid, Sergestoid, Stenopodid and Caridean prawns

Twenty four species of Pandalid shrimps reported from the Indian waters, of which six genera (Chlorotocella, Chlorotocus, Chlorocurtis, Dorodotes, Heterocarpoides and Stylopandalus) are represented by single species each. The genera, Plesionika and Heterocarpus are represented by eleven and seven species respectively. Plesionika adensameri (Balss, 1914) a deep-sea shrimp hitherto unreported from Indian waters is recorded from west coast of India. Information on some biological aspects of few Pandalid shrimps from Indian waters is also reported in the present paper

Trauma of shared past in Avni Doshi’s Girl in White Cotton

Voicing the unvoiced thoughts of the human psyche and human demeanour finds its appropriate representation in literature through explorative narratives. Literature represents an unsettling, tenebrous side of human existence that has been tainted by trauma and pain. The term “trauma” is derived from a Greek word which means "wound" or "infiltration."  Trauma becomes a metaphor for the struggles and demanding situations of late-twentieth-century life in a society captivated by suffering and victimization. Literature plays an important part in depicting human experiences, emotions, and representations of conventional trauma tales. Motherhood is the most significant and heavenly duty in a woman's life. Throughout childhood, a child is constantly exposed to his or her surroundings, from which they acquire their first lessons. As a result, a mother's relationship with her child during childhood has a significant influence on the child's future behaviour. Trauma is a psychological wound inflicting the mind, causing long-term damaging effects. A child's trauma symbolises a multitude of circumstances, including abandonment and maltreatment. It had a bitter experience in its previous incarnation, that lasts for the rest of its life.&nbsp

Review of Challenges in Content Extraction in Web Based Personalized Learning Content Management Systems

A preliminary work in support of our research in developing ontology driven LO extraction analyzes some of the existing Learning Content Management Systems (LCMS) with emphasis on Architecture and Design Issues. Learning Object Repositories (LOR) have great impact on retrieval and storage of contents, so performance improvement issues via content aggregation in LORs have been studied in this paper. The paper discusses the challenges that are being faced by Web-Based LCMS with regards to content extraction

Lobster Resources of India

Lobster Resources of Indi

Not Available

Not AvailableTwenty four species of Pandalid shrimps reported from the Indian waters, of which six genera (Chlorotocella, Chlorotocus, Chlorocurtis, Dorodotes, Heterocarpoides and Stylopandalus) are represented by single species each. The genera, Plesionika and Heterocarpus are represented by eleven and seven species respectively. Plesionika adensameri (Balss, 1914) a deep-sea shrimp hitherto unreported from Indian waters is recorded from west coast of India. Information on some biological aspects of few Pandalid shrimps from Indian waters is also reported in the present paper.Not Availabl