Frequency Coded Chipless RFID Tag using Spurline Resonators

A novel compact chipless RFID tag using spurline resonators is discussed in this paper. The detection of the tag's ID is using the spectral signature of a spurline resonator circuit. The tag has a data capacity of 8-bits in the range 2.38 to 4.04 GHz. The tag consists of a spurline multiresonating circuit and two cross polarised antennas. The prototype of the tag is fabricated on a substrate C-MET/LK4.3 of dielectric constant 4.3 and loss tangent 0.0018. The measured results show that group delay response can also be used to decode the tag’s identity

Huge Sertoli-Leydig cell tumor: a rare case report

Sertoli-Leydig cell tumors (SLCTs), constitute less than 0.5% of all ovarian tumors. SLCT are rare after menopause (less than10%), 75 years, unmarried, postmenopausal since 30 years, presented with complaints of abdominal swelling. On examination, abdominal mass of 36 weeks, hard, immobile felt. Ultrasonography of abdomen showed lobulated solid cystic lesion of size 22 x 15 x 27 cms with bilateral ovaries not separately visualized. Moderate free fluid in the abdomen, suggestive of malignant neoplastic etiology. CECT Abdomen + pelvis suggestive of primary ovarian malignancy with omental deposits and pelvic adenopathy. CA 125- 415.1 Patient underwent total abdominal hysterectomy with bilateral salpingo-oophorectomy with huge tumour mass excision (weight 5.25 kg) with umbilical hernia repair. Frozen section suggestive of a huge mass of 30 x 20 x 15 cm, multilobulated, yellowish white tan in colour, solid-cystic in consistency, seen arising from right ovary. Omentum appears normal. Histopathology report s/o- Moderately differentiated Sertoli Leydig cell tumor. Reporting the first, this huge, in this age group with atypical presentation

Group Key Management Techniques

The most widely used technique in a network is Group communication. This helps in the reduction of the bandwidth usage. The major concern in group communication is its security of messages. Group key provides security of messages and hence proper group key management is very important in a group communication. There are various classifications of group key management techniques. A survey of these key management techniques is done in this paper

Dolichandrone platycalyx: New entomophilous pollen-A report on pollen sensitization in allergic individuals

Background: Dolichandrone platycalyx, commonly known as Nile trumpet tree, is believed to have originated in East Africa. However, this and the variants of this tree are found in Europe, Asia, and America (California and Florida). The tree mostly grows in tropical climates, but temperate species are also found. This study was designed to evaluate the allergenicity of D. platycalyx, one of the most common entomophilous avenue trees in Karnataka state, and to determine the pollen production of D. platycalyx. Methods: All of the patients with allergic rhinitis and asthma attending a tertiary care center in South India during August 2007 to March 2008 underwent a detailed clinical evaluation and skin-prick testing to common allergens along with D. platycalyx. Control subjects without any symptoms of respiratory allergy also underwent skin testing. The pollen counts were determined for a mature unopened flower of D. platycalyx. Results: A total of 317 subjects with respiratory allergy and 30 controls were included in the study. A significant percentage (16.1%) of patients evaluated were observed to be sensitive to Dolichandrone pollen extract by skin-prick testing, whereas none of the control subjects were found to be sensitized. D. platycalyx was the fourth most common sensitizer after Parthenium hysterophorus, Prosopis juliflora, and Artemesia vulgaris. D. platycalyx was found to be a moderate pollen producer at 66,000 pollens/flower. Conclusion: Sensitization to D. platycalyx is common in subjects with respiratory allergies. The clinical relevance of this sensitization and other entomophilous plants needs additional study. (Am J Rhinol Allergy 25, e34-e38, 2011; doi: 10.2500/ajra.2011.25.3579

Major nutrient requirement of mango-ginger (Curcuma amada Roxb.)

Field trials conducted at Vellayani (Kerala, India) with factorial combinations of three levels each of nitrogen (15, 30 and 45 kg N ha-1), phosphorus (15, 30 and 45 kg P20 5 ha-1) and potassium (30, 60 and 90 kg K2O ha-1) revealed that N, P,05 and K2O @ 30 : 30 : .60 kg ha-1 was optimum for obtaining maximum net returns and benefit-cost ratio in mango-ginger (Curcuma amada). &nbsp

Major nutrient requirement of mango-ginger (Curcuma amada Roxb.)

Field trials conducted at Vellayani (Kerala, India) with factorial combinations of three levels each of nitrogen (15, 30 and 45 kg N ha-1), phosphorus (15, 30 and 45 kg P20 5 ha-1) and potassium (30, 60 and 90 kg K2O ha-1) revealed that N, P,05 and K2O @ 30 : 30 : .60 kg ha-1 was optimum for obtaining maximum net returns and benefit-cost ratio in mango-ginger (Curcuma amada). &nbsp

Sacred forest of Kunjapuri Siddhapeeth, Uttarakhand, India

Abstract: Sacred forests are a new frontier for interdisciplinary research and are relevant for biodiversity conservation. However, several sacred forests are experiencing failure of legal protection in guaranteeing their integrity and conservation. To bridge the gap between the needs of local people and to safeguard the health of these sacred places, immediate steps are called for. The present study was conducted in Kunjapuri Siddhapeeth, which is one of the 52 Siddhapeeths of India. A total of 239 plant species belonging to 78 families and 207 genera were collected from the study area. Out of these, nine species are considered threatened and three species vulnerable. Presently, the health of this sacred forest is deteriorating under constant anthropogenic pressures. These disturbances are also a threat for various rare, vulnerable and threatened plants. These forests are maintained and managed by the forest department and the locals are not co-operating. Therefore, the government should either promote community-based conservation of biodiversity in these forests or their administration should be handed over to temple authorities. Resumen: Los bosques sagrados representan una nueva frontera para la investigación interdisciplinaria y son relevantes para la conservación de la biodiversidad. No obstante, varios bosques sagrados carecen de una protección legal que garantice su integridad y conservación. Es necesario realizar acciones inmediatas para conciliar las necesidades de los pobladores locales y salvaguardar la salud de estos espacios sagrados. El presente estudio se llevó a cabo en Kunjapuri Siddhapeeth, que es uno de los 52 Siddhapeeths de la India. En el área de estudio se recolectó un total de 239 especies de plantas pertenecientes a 78 familias y 207 géneros. Entre éstas, se considera que nueve especies están amenazadas y tres son vulnerables. En la actualidad, la salud de este bosque sagrado se está deteriorando bajos las presiones antropogénicas constantes. Estos disturbios también constituyen una amenaza para varias plantas raras, vulnerables y amenazadas. Estos bosques son mantenidos y manejados por el departamento forestal y los pobladores locales no están cooperando. Por lo tanto, o el gobierno debería promover que la conservación de la biodiversidad en estos bosques tenga una base en la comunidad, o su administración debería pasar a manos de las autoridades del templo. Resumo: As florestas sagradas são a nova fronteira para a investigação interdisciplinar e é relevante para a conservação da biodiversidade. Contudo, várias florestas sagradas vêm enfrentando uma lacuna legal que não lhes garante a sua integridade e conservação. Para estabelecer a ligação entre as necessidades da população local e a salvaguarda da saúde deste lugares sagrados, é necessário assumir medidas imediatas. O presente estudo foi conduzido em Kunjapuri Siddhapeeth, que é um dos 52 Siddhapeeths da Índia. Um total de 239 espécies de plantas, pertencendo a 78 famílias e 207 géneros, foram colhidos na área de estudo. Destas, nove espécies são consideradas ameaçadas e três são vulneráveis. Presentemente, o estado desta floresta sagrada está a deteriorar-se sob a constante pressão antropogénica. Estes perturbações

Ipsilateral renal dysgenesis or agenesis with tubulocystic anomalies of the mesonephric duct

Tubulocystic anomalies of the mesonephric duct (MND) are a rare group of related entities with a perplexing clinical presentation. Ultrasound is a useful screening investigation, which can help identify a dysplastic kidney or point to renal agenesis and identify cystic or tubulocystic changes in the structures derived from the ureteric bud or MND. Further evaluation with MRI can help in characterisation and direct management. The presence of a dysplastic kidney or absence of a kidney should prompt further evaluation for associated ureteric abnormalities such as ectopic insertion or ureterocoele, which could lead to a diagnosis of tubulocystic anomaly of the MND. Contribution: The authors describe two cases, briefly outline the diagnostic approach and summarise the literature on management. Reporting radiologists should be aware of these entities