Post-Traumatic Blepharocele in an Adult

Cerebrospinal fluid (CSF) collection in the eyelid is known as blepharocele. It is rarely reported in adults. In this report, we describe one such patient who developed a non-resolving swelling of the left upper eyelid associated with mechanical ptosis following a head injury. He had fractures involving the left orbital rim and roof, and the medial and lateral walls. His left frontal sinus was hypoplastic. The diagnosis of CSF blepharocele was made based on clinical, biochemical and radiological findings. He underwent transcranial repair of the left frontobasal dural tear with a good recovery

Primary Extradural Meningioma Presenting as Frontal Sinusitis with Extensive Bony Changes : Case report

Primary extradural meningiomas are rare tumours and calvarial meningiomas with extensive bony changes and frontal sinusitis are rarer still. We report a 40-year-old female patient who presented to the otorhinolaryngologist at the Sultan Qaboos University Hospital in Muscat, Oman, in October 2013 with headaches and frontal swelling. She was diagnosed with frontal sinusitis complicated by osteomyelitis. Further clinical examination and imaging revealed a left frontal calvarial meningioma with extensive bony changes and extracalvarial extension into the frontal sinus. She underwent a left frontal craniotomy during which the tumour was removed. The postoperative period was uneventful and a follow-up computed tomography scan after three months showed only postoperative changes. This report discusses the radiological differential diagnosis and management of this type of lesion

Experimental and theoretical spectral investigations of 5-chloro-ortho-methoxyaniline using FT-IR, FT-Raman and DFT analysis

Vibrational spectral analyses have been carried out using FT-IR and FT-Raman spectra for 5-chloro-ortho-methoxyaniline (5COMA). The fundamental vibrational frequencies and intensity of vibrational bands are evaluated using density functional theory. The vibrational spectra have been interpreted with the help of normal coordinate analysis based on scaled quantum mechanical force fields. The first-order hyperpolarizability and the anisotropy polarizability invariant have been computed with the numerical derivative of the dipole moment. The HOMO-LUMO energies, atomic charges, hardness, softness, ionization potential, electronegativity and electrophilicity index have been calculated. Natural atomic charges, nonlinear optical, 1H NMR and 13C NMR data have been employed to study the electronic properties of 5COMA using the B3LYP functional with 6-311G** basis set. Molecular electronic potential and Mulliken’s charges have been obtained using the DFT calculation method. Electronic excitation energies, oscillator strength and nature of the respective excited states have been calculated by the closed-shell singlet calculation method

Tension Subdural Hygroma Following Resection of Posterior Fossa Tumour in a Child: A new clinico-radio-pathological entity

Persistent hydrocephalus is common in child after resection of posterior fossa tumours. Occurrence of subdural hygroma, but is very rare, with only few cases reported. We report the rare case of a child who developed a tense subdural hygroma with stable hydrocephalus, in the early postoperative period, following posterior fossa tumour resection. We describe the distinctive clinical, radiological and pathological features associated with the development of a tense subdural hygroma.  We also discuss the management by cerebrospinal fluid diversion, which includes either a ventriculoperitoneal or subduroperitoneal shunt. This unique condition is distinguished from external hydrocephalus by features that are critical to the management strategy.  Keywords: Child, Posterior fossa tumour, Postoperative period, Hydrocephalus, Subdural hygroma, Hygroma, External hydrocephalus

<span style="font-size:11.0pt;font-family: " times="" new="" roman";mso-fareast-font-family:"times="" roman";mso-bidi-font-family:="" mangal;mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:="" hi"="" lang="EN-US">Experimental and theoretical spectral investigations of <span style="font-size:11.0pt;font-family:" times="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-bidi-font-family:mangal;mso-ansi-language:en-gb;="" mso-fareast-language:en-us;mso-bidi-language:hi"="" lang="EN-GB"> 5-chloro-<i>ortho</i>-methoxyaniline<span style="font-size: 11.0pt;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-bidi-font-family:mangal;mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:hi"="" lang="EN-US"> using FT-IR, FT-Raman and DFT analysis</span></span></span>

413-422Vibrational spectral analyses have been carried out using FT-IR and FT-Raman spectra for 5-chloro- ortho-methoxyaniline (5COMA). The fundamental vibrational frequencies and intensity of vibrational bands are evaluated using density functional theory. The vibrational spectra have been interpreted with the help of normal coordinate analysis based on scaled quantum mechanical force fields. The first-order hyperpolarizability and the anisotropy polarizability invariant have been computed with the numerical derivative of the dipole moment. The HOMO-LUMO energies, atomic charges, hardness, softness, ionization potential, electronegativity and electrophilicity index have been calculated. Natural atomic charges, nonlinear optical, 1H NMR and 13C NMR data have been employed to study the electronic properties of 5COMA using the B3LYP functional with 6-311G** basis set. Molecular electronic potential and Mulliken’s charges have been obtained using the DFT calculation method. Electronic excitation energies, oscillator strength and nature of the respective excited states have been calculated by the closed-shell singlet calculation method. </span

Requirements for and evaluation of RMI protocols for scientific computing

Distributed software component architectures provide a promising approach to the problem of building large scale, scientific Grid applications [18]. Communicatio in these co mpo nent architectures is based on Remote Method Invocation ( MI) pro: co ls thatallo wo neso: ware co mp o ent to invo e the functio alityo f ano ther. Examples include Java remo# method invocatio (Java MI)[25] and the new Simple Object Access Protocol (SOAP) [15]. SOAP has the advantage that many proK#T#0R g languages andco mpo nent frameworks can support it. This paper describes experiments sho wing that SOAP by itself is no e#cient eno ugh fo large scale scientific applicatio s. Ho wever, when it is embedded in a multi-pro# co MI framewoK , SOAP can be effectively used as a universal control protocol, that can be swapped out by faster, more special purpose protocols when large data transfer speeds are needed