Concurrent papillary thyroid carcinoma and synovial cfarcinoma of the neck in an adult male

INTRODUCTION: Synovial sarcoma makes up 8-10% of all soft tissue sarcomas, and constitutes 3-10% of all sarcomas occurring in the head and neck region. It shows male predominance (3:2), and the mean age of presentation is 30 years. CASE REPORT: A 51-year-old gentleman presented with right-sided neck swelling which had been progressively increasing in size for the past 2 years. A computed tomography (CT) scan revealed a large heterogeneously enhancing mass on the right side of the neck measuring 7.5 × 6.2 cm. Biopsy of an enlarged node revealed papillary thyroid carcinoma. The patient subsequently underwent total thyroidectomy with right neck dissection. Final histopathology revealed a papillary carcinoma of the thyroid, and the right-sided mass was shown to be monophasic synovial sarcoma. CONCLUSION: We present a case of a concurrent pathology of neck papillary thyroid carcinoma with monophasic synovial sarcoma. We experienced difficulty in diagnosis and misdirection due to raised C-reactive protein (CRP) levels, until final histopathology of the neck mas

Yield and Yield Components of Maize Response Tocompost and Fertilizer-Nitrogen

An experiment on yield and yield components of maize response to compost and fertilizer nitrogen rate as well as timing of application was conducted at New Developmental Farm Khyber Pakhtunkhwa Agricultural University Peshawar during Kharif 2011. The experiment was carried out in Randomized Complete Block Design with split plot arrangement. Compost (0) and 5 kg ha-1) and nitrogen (65 and 130 tons ha-1)were allotted to main plots while Methods (M) of nitrogen application(full at sowing, full at knee stage, and half at sowing and half at knee stages) to sub-plots. Plants at harvest, number of ears per plant, number of grains per row, no. of rows per earwere studied. Higher number of plants at harvest (62102), ear per plant(1.50), grains per row(31), grains per ear (436), rows per ear(13) were produced by compost when applied at the rate of 5 ton ha-1 compared to control plots. Higher no. of plant at harvest(62913), grains per row (31),grains per ear(425 ),rows per ear(13) were produced by 130 kg N ha-1 compared to 65 kg N ha-1. Higher number of plants at harvest  (61599) ,grains per row (31), grains per ear (432), rows per ear (13), were produced when nitrogen was applied as 1/2 at sowing and half 1/2 at knee stage compared to  N application as full dose either at sowing or knee stage. So it is concluded from the experiment that compost at the rate of 5 tons per ha-1 along with 130 kg N ha-1 applied as nitrogen at the rate 130 kg per ha-1 and methods of nitrogen application 1/2 at sowing and 1/2 at knee stage improved yield and yield component of maize and is therefore recommended for general cultivation in agro-climatic condition of Peshawar. Keywords: Maize, Compost, Nitrogen, Method of Nitrogen Applicatio

Wideband and High Gain Array Antenna for 5G Smart Phone Applications Using Frequency Selective Surface

This work presents an eight element array antenna with single layer frequency selective surface (FSS) to obtain high gain. The eight elements are fed by single port. The FSS consists of 14 × 6 unit cells with one unit cell size is 5 × 5 mm2 having wideband behavior. The antenna uses Rogers RT Duroid 5880 substrate and giving very wide bandwidth from 20 GHz to 65 GHz, covering millimeter wave 5G bands (including 28 GHz, 38 GHz and 60 GHz). The designed FSS is showing stop band transmission characteristics below −10 dB threshold from 25 GHz to 42 GHz and 59 GHz to 61 GHz. The eight element antenna integrated with the FSS reflector, which results an improvement in the gain level from 12 dB to 15 dB at 28 GHz, from 10 dB to 12 dB at 38 GHz, and from 9.5 to 11 dB at 60 GHz. The dimensions of the antenna are 65 × 27 × 0.857 mm3. The proposed antenna shows stable gain and directional radiation patterns. The simulation findings are experimentally confirmed, by testing the fabricated prototypes of the proposed antenna system

Outcome of 2000 Cases of Phacoemulsification

Phacoemulsification cases performed at Fauji Foundation Hospital, Rawalpindi. Methods: This study was conducted in the Department of Ophthalmology, Fauji FoundationHospital, Rawalpindi, from October 2004 to March 2007. It comprised 2000 cases of phacoemulsification with intraocular lens (IOL) implantation which wereperformed at Fauji Foundation Hospital in two and a half years. Variables analysed included patient’s age and sex, pre-existing conditions limiting final visualacuity (VA), and type of anesthesia used. Outcome measures included intra operative and postoperative complications and final visual acuity. Results: Of the 2000 cases, there were 72% female and 28% male patients. 62% of patients were given periocular whereas 38% were operated in topical anesthesia. 15.35% of patients suffered intra operative complications. Intra operative complications were: radial tear in 5% cases, posterior capsular (PC) rent without vitreous loss in 3.45% and PC rent with vitreous loss in 4.85% of patients, iris damage in 0.83%, zonular dehiscence in 0.6% of cases, and nuclear fragment drop in 0.3% of patients. Of total patients, 91% of patients kept their appointment for 8 weeks follow up. Postoperatively corrected visual acuity after elimination of factors reducing best corrected visual acuity (BCVA) was 6/9 or better in 89% of cases. Postoperative complications were seen in 20.83% of patients, which included mild to moderate striate keratitis in 11.98%, mild to moderate anterior uveitis in 4.01%, raised intra ocular pressure (IOP) in 0.73%, wound leakage in 0.3%, ophthalmoplegia in 0.05% and endophthalmitis in 0.10% of cases. Posterior capsularopacification (PCO) was seen in 3.65% of patients in 8 weeks of followup. Post operative astigmatism was from 0 – 4.5 D. Conclusion: Phacoemulsification is much safer, predictable, relatively atraumatic procedure and it provides early rehabilitation. It is associated with more patient as well as surgeon satisfaction

Frequency-Selective Surface-Based MIMO Antenna Array for 5G Millimeter-Wave Applications

In this paper, a radiating element consisting of a modified circular patch is proposed for MIMO arrays for 5G millimeter-wave applications. The radiating elements in the proposed 2 × 2 MIMO antenna array are orthogonally configured relative to each other to mitigate mutual coupling that would otherwise degrade the performance of the MIMO system. The MIMO array was fabricated on Rogers RT/Duroid high-frequency substrate with a dielectric constant of 2.2, a thickness of 0.8 mm, and a loss tangent of 0.0009. The individual antenna in the array has a measured impedance bandwidth of 1.6 GHz from 27.25 to 28.85 GHz for S11 ≤ −10 dB, and the MIMO array has a gain of 7.2 dBi at 28 GHz with inter radiator isolation greater than 26 dB. The gain of the MIMO array was increased by introducing frequency-selective surface (FSS) consisting of 7 × 7 array of unit cells comprising rectangular C-shaped resonators, with one embedded inside the other with a central crisscross slotted patch. With the FSS, the gain of the MIMO array increased to 8.6 dBi at 28 GHz. The radiation from the array is directional and perpendicular to the plain of the MIMO array. Owing to the low coupling between the radiating elements in the MIMO array, its Envelope Correlation Coefficient (ECC) is less than 0.002, and its diversity gain (DG) is better than 9.99 dB in the 5G operating band centered at 28 GHz between 26.5 GHz and 29.5 GHz

Utilization of malted barley flour as replacement of wheat flour to improve technological, rheological, physicochemical, and organoleptic parameters of fortified breads

Introduction: Flours from cereal grains have the potential to be used in the production of bakery products, especially breads, and the addition of other non–wheat plant materials in the form of flours, extracts and malts has always been the area of interest for food producers. Methods: In this research work, barley grains were converted into barley malt flour (BMF), by adopting a series of processes, including steeping, germination, kilning, drying and milling. With the aim of compensating the role of commercial bread improvers, wheat flour was replaced at 0, 2.5, 5, 7.5, and 10% levels with BMF, to study the effect of BMF on physicochemical and sensory characteristics of bread. Results and discussion: Chemical analysis of flours revealed that ash, fat, moisture, protein and fibers were found greater in BMF and BMF–incorporated composite flours, as compared to wheat flour. Significant increases in water absorption and decrease in dough stability, dough development time and falling number were noticed, as a result of an increase in the replacement level of BMF. Water absorption of control dough was 58.03%, which increased to 58.77% in composite flour having 10% BMF, whereas dough development time, dough stability and α–amylase activity of control, were 6.97 min, 12 min, and 736 s, respectively, which were decreased to 3.83 min, 4.73 min, and 360 s, respectively in composite flour having 10% BMF. The internal and external characteristics of breads obtained the best sensorial score at 5% replacement level of BMF, and deterioration in the quality of breads was noticed, as the level of BMF was further increased to 7.5 and 10%. Hence, breads developed with 5% BMF and 95% wheat flour, were not only nutritionally rich, but were also with optimum physical and sensory features. BMF could prove a useful alternate ingredient of wheat flour, and a cost-effective replacement of commercially available bread improvers, in the breads manufacturing process in replacement of synthetic bread improvers.info:eu-repo/semantics/publishedVersio

Utilization of malted barley flour as replacement of wheat flour to improve technological, rheological, physicochemical, and organoleptic parameters of fortified breads

Introduction: Flours from cereal grains have the potential to be used in the production of bakery products, especially breads, and the addition of other non–wheat plant materials in the form of flours, extracts and malts has always been the area of interest for food producers. Methods: In this research work, barley grains were converted into barley malt flour (BMF), by adopting a series of processes, including steeping, germination, kilning, drying and milling. With the aim of compensating the role of commercial bread improvers, wheat flour was replaced at 0, 2.5, 5, 7.5, and 10% levels with BMF, to study the effect of BMF on physicochemical and sensory characteristics of bread. Results and discussion: Chemical analysis of flours revealed that ash, fat, moisture, protein and fibers were found greater in BMF and BMF–incorporated composite flours, as compared to wheat flour. Significant increases in water absorption and decrease in dough stability, dough development time and falling number were noticed, as a result of an increase in the replacement level of BMF. Water absorption of control dough was 58.03%, which increased to 58.77% in composite flour having 10% BMF, whereas dough development time, dough stability and α–amylase activity of control, were 6.97 min, 12 min, and 736 s, respectively, which were decreased to 3.83 min, 4.73 min, and 360 s, respectively in composite flour having 10% BMF. The internal and external characteristics of breads obtained the best sensorial score at 5% replacement level of BMF, and deterioration in the quality of breads was noticed, as the level of BMF was further increased to 7.5 and 10%. Hence, breads developed with 5% BMF and 95% wheat flour, were not only nutritionally rich, but were also with optimum physical and sensory features. BMF could prove a useful alternate ingredient of wheat flour, and a cost-effective replacement of commercially available bread improvers, in the breads manufacturing process in replacement of synthetic bread improvers

High performance antenna system in MIMO configuration for 5G wireless communications over sub-6 GHz spectrum

This paper presents a high-performance multiple input and multiple output (MIMO) antenna comprising 2 × 2 configuration of radiating elements that is designed for sub-6 GHz applications. The proposed MIMO antenna employs four identical radiating elements. High isolation between the radiating elements and therefore reduced mutual coupling is achieved by spatially arranging the radiating elements in an orthogonal configuration. Also, a novel frequency selective surface (FSS) was employed to increase the gain of the MIMO antenna over a wide bandwidth from 3 to 6 GHz. This was achieved by locating the FSS above the antenna at a certain height. The FSS essentially enhanced the antenna's directivity, reduced back lobe radiation and mutual coupling. The antenna was fabricated on a standard Rogers RT/Duroid 5880 dielectric substrate with a 0.8 mm thickness. The overall dimension of the MIMO antenna is 50 × 50 × 12.5 mm3 and it operates from 3.8 to 6 GHz, which corresponds to a fractional bandwidth of 41%. The proposed MIMO antenna has a measured peak gain of 4.8 dBi and inter radiation element isolation >20 dB. Its envelope correlation coefficient is 9.9 (dB). These characteristics make the proposed MIMO antenna system suitable for 5G communication systems