bluuebunny/crossref_metadata_2025 huggingface dataset:
Seasonal and Diurnal Variation on Tropospheric Scintillation at Ku-Band in Tropical Climate
Authors: Elshami Ibtihal Fawzi , Din Jafri
Published: October 2016

Tropospheric scintillation is a rapid fluctuation of the received signal amplitude which can cause propagation impairments that affect satellite communication systems operating above 10 GHz. Scintillation data was collected in Equatorial Johor Bahru, Malaysia, based on a one-year Ku-band propagation measurement campaign, utilizing MEASAT-1 Satellite with an antenna elevation angle of 75.61°. This work concentrates on the probability density function (PDF) of diurnal variations of clear sky scintillation variance analyzed on an hourly basis. Besides, seasonal variation of scintillation amplitude has been presented in this paper. From the results, it is concluded that clear sky scintillation variance is likely to occur during morning and afternoon periods. Moreover, clear sky scintillation amplitude of the South-West monsoon shows a relatively higher comparing with others monsoon seasons. Hence, signal attenuation based on seasonal and diurnal information is of great interest for the system designers to appropriately design fade margin.Tropospheric scintillation is a rapid fluctuation of the received signal amplitude which can cause propagation impairments that affect satellite communication systems operating above 10 GHz. Scintillation data was collected in Equatorial Johor Bahru, Malaysia, based on a one-year Ku-band propagation measurement campaign, utilizing MEASAT-1 Satellite with an antenna elevation angle of 75.61°. This work concentrates on the probability density function (PDF) of diurnal variations of clear sky scintillation variance analyzed on an hourly basis. Besides, seasonal variation of scintillation amplitude has been presented in this paper. From the results, it is concluded that clear sky scintillation variance is likely to occur during morning and afternoon periods. Moreover, clear sky scintillation amplitude of the South-West monsoon shows a relatively higher comparing with others monsoon seasons. Hence, signal attenuation based on seasonal and diurnal information is of great interest for the system designers to appropriately design fade margin.
Parasitic Strip Loaded Dual Band Notch Circular Monopole Antenna with Defected Ground Structure
Authors: Sundar P Syam , K Kotamraju Sarat , Madhav B T P , Sreehari M , Rao K Raghavendra , Prathyusha L , Pravallika Y
Published: October 2016

In this article a parasitic strip loaded monopole antennas are designed to notch dual and triple bands. The designed models are constructed on one side of the substrate material and on the other end defected ground structures are implemented. The basic antenna comprises a tuning stub and a ground plane with tapered shape slot as DGS. Another model is constructed with circular monopole radiating element on front side and similar kind of ground structure used in the basic rectangular tuning stub antenna. To create notched bands with tuning stubs, two symmetrical parasitic slits are placed inside the slot of the ground plane. The basic model is of the rectangular stub notching triple band and the circular tuning stub antenna notching dual band. Dual band notched circular tuning stub antenna is prototyped on FR4 substrate and measured results from vector network analyzer are compared with simulation results of HFSS for validation.
Assessment of Step and Touch Voltages for Different Multilayer Soil Models of Complex Grounding Grid
Authors: Nikolovski Srete , Knežević Goran , Baus Zoran
Published: October 2016

In this paper the influence of different soil models on step and touch voltages are presented. Soil resistivity is the basic characteristic of soil which affects a number of parameters (temperature, humidity, salt content). Basic methods of measuring soil resistivity presented in this paper are: Wenner method, Schlumberger method, General method, Driven rod (3-probe) method and the Dipole-Dipole method. Soil resistivity measurements are used to obtain an equivalent soil model (uniform model, two-layer horizontal model, multi-layer horizontal model, vertical model and others). The CDEGS software package is used for computing GPR (Ground Potential Rise), touch and step voltage with several different soil models. The resulting effect of soil models on the grounding resistance, GPR at the surface, touch and step voltages are shown. The 3D spatial distribution and 2D presentation of all characteristic values for safety analysis are presented and plotted.
Building Fault Tollrence within Clouds at Network Level
Authors: Jammalamadaka Sastry Kodanda Rama , Duvvuri Kamesh Bala Krishna , CH Devi Anusha , P Padmini , G Siva Anjaneyulu
Published: October 2016

Cloud computing technologies and infrastructure facilities are coming up in a big way making it cost effective for the users to implement their IT based solutions to run business in most cost-effective and economical way. Many intricate issues however, have cropped-up which must be addressed to be able to use clouds the purpose for which they are designed and implemented. Among all, fault tolerance and securing the data stored on the clouds takes most of the importance. Continuous availability of the services is dependent on many factors. Faults bound to happen within a network, software, and platform or within the infrastructure which are all used for establishing the cloud. The network that connects various servers, devices, peripherals etc., have to be fault tolerant to start-with so that intended and un-interrupted services to the user can be made available. A novel network design method that leads to achieve high availability of the network and thereby the cloud itself has been presented in this paper
A Fuzzy Logic Control Strategy for Buck PFC Converter Based 4- Switch VSI Fed BLDC Motor Drive
Authors: Ramesh V. , Latha Y. Kusuma
Published: October 2016

In this paper, a new Buck PFC dc–dc converter topology along with fuzzy logic control for a permanent magnet (PM) brushless dc motor (PMBLDCM) has been proposed. The proposed buck-PFC converter topology is on single stage power factor correction converter. A concept of dc link voltage control which is proportional to speed of the PMBLDCM is used in this paper. The stator currents of the PMBLDCM during step change in the reference speed are controlled within the specified limits by an addition of a rate limiter in the reference dc link voltage. The effectives of the proposed control strategy of PMBLDCM drive is validated through simulation results.
Comparative Study on the AC Brekadown Voltage of Palm Fatty Acid Ester Insulation Oils Mixed With Iron Oxide Nanoparticles
Authors: Mohamad Mohd Safwan , Zainuddin Hidayat , Ab Ghani Sharin , Chairul Imran Sutan
Published: October 2016

Mineral oils are are derived from petroleum which is a non-renewable and non-sustainable source, and therefore there is a critical need to develop alternative insulation oils for use in transformers.  Ester oils offer a number of benefits over mineral oils such as good biodegradability, high cooling stability, good oxidation stability and excellent insulation performance. Nowadays, nanotechnology has become one of the most important research fields in both the academia and industry and it has been shown in previous studies that nanoscale materials are beneficial for transformers. In this regard, the objective of this study is to compare the AC breakdown voltage of palm fatty acid ester (PFAE) oils mixed with iron oxide (Fe3O4) nanoparticles. The PFAE-based nanofluids are prepared using two methods: (1) Method I (weight-based method whereby the concentration of the Fe3O4 nanoparticles is 0.01 g/l) and (2) Method II (volume-fraction method whereby the concentration of the Fe3O4 nanoparticles is 0.01, 0.02 and 0.03%). The AC breakdown voltage test is conducted on the PFAE-based nanofluids in accordance with the ASTM D1816 standard test method. Weibull statistical analysis is carried out to analyse the AC breakdown voltage of fresh PFAE oil and PFAE-based nanofluids. It is found that there is enhancement of the AC breakdown voltage for all PFAE-based nanofluids with the exception of with the exception of one sample prepared using Method II (0.01% Fe3O4 nanoparticles).
An Optimizing Approach for Multi Constraints Reassignment Problem of Human Resources
Authors: Said Tkatek , Otman Abdoun , Jaafar Abouchabaka , Najat Rafalia
Published: October 2016

This paper presents an effective approach to optimize the reassignment of Human Resources in the enterprise that is formed by several units of productions to take into consideration the human characteristics. This approach consists of two steps; the first step is to formalize the studied problem that is practically take the form of the generalized assignment problem (GAP) known as NP-hard problem. Additionally, the variables in the formulation of our problem are interlinked by certain constraints. These two proprieties can to justify the important complexity of this problem. The second step is focused to solve this complex problem by using the genetic algorithm. We present the experimentally result for justifying the validity of the proposed approach. So, the solution obtained allowed us to get an optimal assignment of personnel that can lead to improve the average productivity or ratability or at least ensure its equilibration within sites of enterprise.
Model Driven PID Controller in Water Heater System
Authors: Hondianto Tommy , Susanto Erwin , Wibowo Agung Surya
Published: October 2016

PID controller has been widely used as one of the basic property controllers in industry. However, tuning PID parameters is not simple and also has a few problems in handling slow response systems, such as boiler. Therefore, the Model Driven PID (MD PID) control is designed for solving these problems, especially for plants or processes with slow response. The MD PID is using the model of the plant itself as the basic model of the controller. In this research, we will show the performance of water heater system step response with MD PID controller compared to the conventional PID controller (PI controller). The MD PID closed-loop system is expected to give fast response, stable, and no overshoot.
Accurate Iris Localization Using Edge Map Generation and Adaptive Circular Hough Transform for Less Constrained Iris Images
Authors: Kumar Vineet , Asati Abhijit , Gupta Anu
Published: October 2016

This paper proposes an accurate iris localization algorithm for the iris images acquired under near infrared (NIR) illuminations and having noise due to eyelids, eyelashes, lighting reflections, non-uniform illumination, eyeglasses and eyebrow hair etc. The two main contributions in the paper are an edge map generation technique for pupil boundary detection and an adaptive circular Hough transform (CHT) algorithm for limbic boundary detection, which not only make the iris localization more accurate but faster also. The edge map for pupil boundary detection is generated on intersection (logical AND) of two binary edge maps obtained using thresholding, morphological operations and Sobel edge detection, which results in minimal false edges caused by the noise. The adaptive CHT algorithm for limbic boundary detection searches for a set of two arcs in an image instead of a full circle that counters iris-occlusions by the eyelids and eyelashes. The proposed CHT and adaptive CHT implementations for pupil and limbic boundary detection respectively use a two-dimensional accumulator array that reduces memory requirements. The proposed algorithm gives the accuracies of 99.7% and 99.38% for the challenging CASIA-Iris-Thousand (version 4.0) and CASIA-Iris-Lamp (version 3.0) databases respectively. The average time cost per image is 905 msec. The proposed algorithm is compared with the previous work and shows better results.
Performance Analysis of Preemptive Based Uniprocessor Scheduling
Authors: Shanmugasundaram M , Kumar R , M Kittur Harish
Published: October 2016

All the real-time systems are bound with response time constraints, or else, there is a risk of  severe consequences, which includes failure. The System will fail when not able to meet the requirements according to the specifications. The problem of real-time scheduling is very vast, ranging from uni-processor to complicated-multiprocessor. In this paper, we have compared the performance of real-time tasks that should be scheduled properly, to get optimum performance. Analysis methodology and the concept of optimization leads to the design of appropriate scheduling. We have done  the analysis among RM and EDF algorithm that are important for scheduling in uni-processor.
MOCCCDTA-based Current Mode Tunable Universal Biquad Filter for Bluetooth Applications
Authors: Sharma Jyoti , Chakraborty Shantanu
Published: October 2016

In the last decade, there has been much effort to reduce the supply voltage of electronic circuits due to the demand for portable and battery-powered equipment. Since a low-voltage operating circuit becomes necessary, the current-mode technique is ideally suited for this purpose more than the voltage-mode one. In this paper, performance of multi output current controlled current differencing transconductance amplifier (MOCCCDTA) is evaluated using 180nm, 90nm and 45nm CMOS technology. It is found that the 45nm CMOS-based
MOCCCDTA provides highest frequency i.e. 33GHz. Further a Universal biquad filter has been designed using a single MOCCCDTA as an active element and two capacitors. Filter offers high frequency in GHz. Tunability of all the filter outputs with respect to a bias current has been analyzed. The tunability of the filter circuit for Bluetooth applications is also shown in this work. The performances of MOCCCDTA circuit and Universal biquad filter are illustrated by HSPICE. The simulation results are found to be in agreement with the theoretical predictions.
Hybrid Approach for Prediction of Cardiovascular Disease Using Class Association Rules and MLP
Authors: Konda Srinivas , Balmuri Kavitha Rani , Basireddy Ramasubba Reddy , Mogili Ravindar
Published: October 2016

:  In data mining classification techniques are used to predict group membership for data instances. These techniques are capable of processing a wider variety of data and the output can be easily interpreted. The aim of any classification algorithm is the design and conception of a standard model with reference to the given input. The model thus generated may be deployed to classify new examples or enable a better comprehension of available data.  Medical data classification is the process of transforming descriptions of medical diagnoses and procedures used to find hidden information. Two experiments are performed to identify the prediction accuracy of Cardiovascular Disease (CVD).A hybrid approach for classification is proposed in this paper by combining the results of the associate classifier and artificial neural networks (MLP).  The first experiment is performed using associative classifier to identify the key attributes which contribute more towards the decision by taking the 13 independent attributes as input. Subsequently classification using Multi Layer Perceptrons (MLP) also performed to generate the accuracy of prediction using all attributes. In the second experiment, identified key attributes using associative classifier are used as inputs for the feed forward neural networks for predicting the presence or absence of CVD.
Secure Multicast Routing Protocol in Manets Using Efficient ECGDH Algorithm
Authors: Arepalli Gopi , Babu Erukula Suresh
Published: October 2016

An Ad-hoc Network covers a set of autonomous mobile nodes that communicates through wireless communication in an infrastructure-less environment. Mostly MANETs are used in group communication mechanisms like military applications, emergency search, rescue operations, vehicular ad-hoc communications and mining operations etc. In such type of networks, group communication is takes place by multicasting technique. Communication and collaboration is necessary among the nodes in the groups in multicast protocols. PUMA has the best multicast routing protocol compared to tree and mesh based multicast protocols although it suffers from security issues. PUMA mainly suffers from Man In The middle attack. MITM attack generates traffic flow, drop the packets and miscommunicate the neighbor nodes with false hop count. So defending from MITM attack we designed a new mechanism called Elliptic Curve Group Diffie-Hellman (ECGDH). This paper compares results of PUMA [1] routing protocol with legitimate, under attack and after providing security against attack. Finally we observed ECGDH [2] gives efficient results even attack has happened.
Analysis of the range of acceleration for an accelerometer with extended beams
Authors: Cabello Ramon , Tecpoyotl Margarita , Vera Jose Gerardo , Torres Alfonso , Vargas Pedro , Koshevaya Svetlana
Published: October 2016

The elastic behaviour of a system can be determined by an analysis of stresses. The stress generated in the element loaded of an accelerometer is of interest here. In these devices, the suspension beams are the elements subjected to greater stresses, as they support the mass. The stress that they can support is limited by the elastic limit of the material. Based on this analysis, the operating conditions to prevent permanent deformations are determined. The analysis is focused on the acceleration applied to the accelerometer because this parameter increases considerably the stresses in the device. A relationship between normal stress and gravity applied is obtained. This equation is used in order to avoid exceeding the elastic limit, during the accelerometer operation. This fact determines the acceleration range supported by the device. In the literature, studies about the physics and modelling of accelerometers are performed. However, about the specific acceleration of operation which they are subjected, information about its determination is not provided. In this paper, the analysis is realized considering a Conventional Capacitive Accelerometer (CCA) and a Capacitive Accelerometer with Extended Beams (CAEB), particularly, on the normal stress. When a range of acceleration values are applied, normal stress occur which must not exceed the elastic limit of the material, as it was mentioned before. The Matlab code used to calculate this relationship is given in Appendix A.
Software Reliability Prediction using Fuzzy Min-Max Algorithm and Recurrent Neural Network Approach
Authors: Bhuyan Manmath Kumar , Mohapatra Durga Prasad , Sethi Srinivas
Published: October 2016

Fuzzy Logic (FL) together with Recurrent Neural Network (RNN) is used to predict the software reliability. Fuzzy Min-Max algorithm is used to optimize the number of the kgaussian nodes in the hidden layer and delayed input neurons. The optimized recurrent
neural network is used to dynamically reconfigure in real-time as actual software failure. In this work, an enhanced fuzzy min-max algorithm together with recurrent neural network based machine learning technique is explored and a comparative analysis is performed for the modeling of reliability prediction in software systems. The model has been applied on data sets collected across several standard software projects during system testing phase with fault removal. The performance of our proposed approach has been tested using distributed system application failure data set.
Non-Reentrant Fascicular Tachycardia
Authors: Talib Ahmed Karim , Nogami Akihiko , Morishima Itsuro , Oginosawa Yasushi , Kurosaki Kenji , Kowase Shinya , Komatsu Yuki , Kuroki Kenji , Igarashi Miyako , Sekiguchi Yukio , Aonuma Kazutaka
Published: October 2016

Background—

The most common form of idiopathic Purkinje-related ventricular tachycardia (VT) is the reentrant type. We describe the clinical and electrophysiological characteristics of focal non-reentrant fascicular tachycardia.

Methods and Results—

Among 530 idiopathic VT patients who were referred for ablation, we identified 15 (2.8%) with non-reentrant fascicular tachycardia (11 men, 45±21 years). Sinus rhythm ECG showed normal conduction intervals with a His–ventricular interval of 41±4 ms. All patients had monomorphic VT (cycle length: 337±88 ms) with a relatively narrow QRS (123±12 ms), and they did not respond to verapamil during the initial presentation. VT exhibited right bundle-branch block/superior axis configuration in 11 patients (73%) and inferior axis in 3 (20%). In 1 patient (7%), VT exhibited left bundle-branch block/superior axis configuration. During ablation, spontaneous VT occurred in 3 patients (20%) and nonentraintable VT or identical premature ventricular complex was induced in 9 (60%). A high-frequency presystolic Purkinje potential was recorded during VT/premature ventricular complex, preceding the QRS by 25±16 ms. VT recurrence was observed in 4 patients (27%), and among them, 3 underwent pacemap-guided ablation during the first session. A second ablation with activation mapping guidance eliminated the VT during the 88±8-month follow-up.

Conclusions—

Among idiopathic VT cases referred for ablation, 2.8% were focal non-reentrant fascicular tachycardia, which had distinct clinical characteristics and usually originated from the left posterior fascicle, and less commonly from the left anterior fascicle and right ventricular Purkinje network. Catheter ablation is effective, whereas pacemap-guided approach is less efficacious.
Association Between Left Atrial Dilatation and Invasive Hemodynamics at Rest and During Exercise in Asymptomatic Aortic Stenosis
Authors: Christensen Nicolaj Lyhne , Dahl Jordi Sanchez , Carter-Storch Rasmus , Bakkestrøm Rine , Jensen Kurt , Steffensen Flemming Hald , Søndergaard Eva Vad , Videbæk Lars , Møller Jacob Eifer
Published: October 2016

Background—

Transition from an asymptomatic to symptomatic state in severe aortic stenosis is often difficult to assess. Identification of a morphological sign of increased hemodynamic load may be important in asymptomatic aortic stenosis to identify patients at risk.

Methods and Results—

Thirty-nine patients with asymptomatic severe aortic stenosis (aortic valve area <1 cm
2
, peak jet velocity >3.5 m/s) underwent exercise testing with simultaneous invasive hemodynamic monitoring and Doppler echocardiography. Cardiac index, pulmonary artery pressure, and pulmonary capillary wedge pressure (PCWP) were recorded. Patients were followed up for the composite end point of death, unplanned hospitalization, or aortic valve replacement. Patients were stratified into 2 groups according to left atrial (LA) volume index ≥35 mL/m
2
. In 25 patients (64%) LA volume index was ≥35 mL/m
2
. Aortic valve area was similar between groups (0.81±0.15 versus 0.84±0.18 cm
2
;
P
=0.58). PCWP was higher at rest and during exercise in patients with LA volume index ≥35 mL/m
2
(
P
<0.01), despite similar cardiac index. At rest, PCWP was <12 mm Hg in 11 patients (44%) with LA dilatation, whereas PCWP was <25 mm Hg in 1 patient (4%) with exercise. LA volume index and E/e′ predicted exercise PCWP>30 mm Hg with areas under the receiver operating curve of 0.75 and 0.84, respectively. During follow-up, 14 cardiac events were recorded. LA volume was associated with a hazard ratio of 1.90 (95% confidence interval, 0.92–4.15).

Conclusions—

LA size reflects hemodynamic burden in patients with asymptomatic severe aortic stenosis. Quantitative measurements of LA and diastolic function are associated with left ventricular filling pressures with exercise and could be used to identify asymptomatic patients with increased hemodynamic burden.

Clinical Trial Registration—

URL:
http://www.clinicaltrials.gov
. Unique identifier: NCT02395107.
Effects of Concurrent Depressive Symptoms and Perceived Stress on Cardiovascular Risk in Low‐ and High‐Income Participants: Findings From the Reasons for Geographical and Racial Differences in Stroke (REGARDS) Study
Authors: Sumner Jennifer A. , Khodneva Yulia , Muntner Paul , Redmond Nicole , Lewis Marquita W. , Davidson Karina W. , Edmondson Donald , Richman Joshua , Safford Monika M.
Published: October 2016

Background

Psychosocial risk for cardiovascular disease (
CVD
) may be especially deleterious in persons with low socioeconomic status. Most work has focused on psychosocial factors individually, but emerging research suggests that the confluence of psychosocial risk may be particularly harmful. Using data from the Reasons for Geographical and Racial Differences in Stroke (
REGARDS
) study, we examined associations among depressive symptoms and stress, alone and in combination, and incident
CVD
and all‐cause mortality as a function of
socioeconomic status
.

Methods and Results

At baseline, 22 658 participants without a history of
CVD
(58.8% female, 41.7% black, mean age 63.9±9.3 years) reported on depressive symptoms, stress, annual household income, and education. Participants were classified into 1 of 3 psychosocial risk groups at baseline: (1) neither depressive symptoms nor stress, (2) either depressive symptoms or stress, or (3) both depressive symptoms and stress. Cox proportional hazards models were used to predict physician‐adjudicated incident total
CVD
events (nonfatal myocardial infarction, nonfatal stroke, and cardiovascular death) and all‐cause mortality over a median of 7.0 years (interquartile range 5.4–8.3 years) of follow‐up. In fully adjusted models, participants with both depressive symptoms and stress had the greatest elevation in risk of developing total
CVD
(hazard ratio 1.48, 95%
CI
1.21–1.81) and all‐cause mortality (hazard ratio 1.33, 95%
CI
1.13–1.56) but only for those with low income (<$35 000) and not high (≥$35 000) income. This pattern of results was not observed in models stratified by education.

Conclusions

Findings suggest that screening for a combination of elevated depressive symptoms and stress in low‐income persons may help identify those at increased risk of incident
CVD
and mortality.
The first Indian record of Pogonatum marginatum Mitt. (Polytrichaceae) from the Western Ghats
Authors: DANIELS ALVERT EBENEZER DULIP , KARIYAPPA KOCHUMANI CHINNAPILLA , HYVONEN JAAKKO , BELL NEIL
Published: October 2016

Pogonatum marginatum has been previously known from Sri Lanka and Vietnam. It was recently collected in the Agasthyamalai Biosphere Reserve in the Western Ghats (Kerala and Tamil Nadu), this being the first record of the plant in India. We provide a detailed description of the species with figures and a photographic plate, plus novel chloroplast gene sequences of the Indian plant, another specimen of the same species, and a close relative.
Additions to the bryophyte flora of Guadeloupe archipelago (Lesser Antilles)
Authors: LAVOCAT BERNARD ELISABETH , REEB CATHERINE
Published: October 2016

13 liverworts, 6 mosses and 1 hornwort are newly reported from the Guadeloupe archipelago. Mytilopsis albifrons, Plagiochila gymnocalycina var. surinamensis, Prionolejeunea muricatoserrulata and Syrrhopodon cymbifolius, are reported as new from the West Indies.
A review of the Taeniacanthus balistae species group (Crustacea: Copepoda: Taeniacanthidae), with descriptions of two new species
Authors: TANG DANNY , UYENO DAISUKE , NAGASAWA KAZUYA
Published: October 2016

The Taeniacanthus balistae species group is characterized by two displaced elements on an outwardly curved and elongated terminal exopodal segment of leg 4. Members of this group parasitize tetraodontiform fishes. The group is reviewed herein based on both new material collected from tetraodontiform fishes and re-examination of voucher specimens housed at the Smithsonian Institution, U.S.A. Five species are considered valid in this group, including two new species described here, Taeniacanthus dojirii sp. nov. from diodontid hosts collected from the Indo-West Pacific and Taeniacanthus ryukyuensis sp. nov. from balistid hosts collected from the Ryukyu Islands, Japan. Taeniacanthus dojirii sp. nov. differs from other members of the group by having in the female stout spines on the terminal endopodal segment of legs 2 to 4 and on the exopod of leg 5, as well as highly reduced setae on the last two exopodal segments of leg 4. Taeniacanthus ryukyuensis sp. nov. differs from other members of the group by having in the female 16–18 incomplete rows of spinules on the anal somite, minute teeth on the straight terminal claw of the maxilliped and well-developed spinulated flanges on the rami of legs 2 to 4. Supplemental morphological observations, as well as new host and locality records for Taenicanthus balistae (Claus, 1864) and Taeniacanthus similis Dojiri & Cressey, 1987, are also provided.
Cepolacanthus kimi, a new genus and species of copepod (Cyclopoida: Taeniacanthidae) parasitic on Bandfish Acanthocepola abbreviata (Valenciennes, 1835) (Actinopterygii: Cepolidae) caught off the Iraqi coast
Authors: MARAN BALU ALAGAR VENMATHI , MOON SEONG YONG , ADDAY THAMIR KATEA , TANG DANNY
Published: October 2016

A new genus and species, Cepolacanthus kimi, of the family Taeniacanthidae is established based on adult female specimens collected from the gills of Bandfish Acanthocepola abbreviata (Valenciennes, 1835) (Actinopterygii: Perciformes: Cepolidae) caught off the coast of Iraq. The new genus is characterised by the following combination of features: 1) the urosome is composed of five somites, with the last urosomite probably being a compound somite formed from the failure of the third and fourth abdominal somites to separate; 2) the seta on the maxillary basis is displaced proximally from the free spinulated element; 3) the terminal claw (endopod) of the maxilliped is long and attenuate; 4) the endopod of legs 2–4 is 2-segmented; and 5) the terminal exopodal segment of leg 4 bears a prominent distolateral protuberance. Cepolacanthus kimi gen. et sp. nov. is the first copepod reported from A. abbreviata and the second taeniacanthid species recorded from the Iraqi coast. A new replacement name, Suncheonacanthus nom. nov., is proposed for the preoccupied generic name, Triacanthus Kim & Moon, 2013.
Nippoparasitus unoashicola, a new genus and species of philoblennid copepod (Cyclopoida) parasitic on the Pacific sugar limpet, Patelloida saccharina (Linnaeus, 1758) (Patellogastropoda: Lottiidae) from the intertidal zone of eastern Japan
Authors: UYENO DAISUKE , OGASAKA RIE , NAGASAWA KAZUYA
Published: October 2016

Nippoparasitus unoashicola, a new genus and species of mesoparasitic copepod, is described based on specimens of both sexes collected from the mantle cavity of the Pacific sugar limpet, Patelloida saccharina (Linnaeus, 1758) (Patellogastropoda: Lottiidae), in the intertidal zone of the Uraga Channel (North Pacific Ocean), Japan. Nippoparasitus gen. nov. differs from other philoblennid genera by two unique characters: the labium is bloated and branched into multiple digitate lobes in female, and the antenna has three claw-like spines on the terminal segment. Nippoparasitus is probably closely related to Myzotheridion Laubier & Bouchet, 1976 with which it shares a series of processes on the terminal segment of the maxilla.
Preface: Recent Developments in Taxonomy and Biodiversity of Symbiotic Copepoda (Crustacea)—A Volume in Celebration of the Career of Prof. Il-Hoi Kim
Authors: HUYS RONY
Published: October 2016

Symbiosis is one of the most successful modes of life displayed by aquatic organisms, as measured by the number of times it evolved and how many symbiotic species are presently in existence. Among the Crustacea copepods utilize an extraordinary range of hosts, occurring on virtually every phylum of marine macroinvertebrates and, jointly with the monogeneans, are the most speciose group of metazoan ectoparasites of marine fishes (Rhode 2005). Several species have a major impact on global finfish and shellfish aquaculture, causing significant effects on farm production, economic viability and sustainability (Shinn et al. 2015). Parasitism by copepods on other metazoans has evolved independently numerous times in the evolutionary history of animal life on Earth and has led to an exceptional diversity in morphologies, physiologies, life-strategies and habitat preferences of its members. Reflecting the diversity of hosts, copepods show an amazing variety of adaptations which secure infection of and survival on the hosts. Since the first descriptions of parasitic copepods occurring on fish by Linnaeus (1758) and the first report of a copepod utilizing an invertebrate host by Say (1818) (Clausidium caudatum (Say, 1818)) the number of described symbiotic copepods has seen a steady increase over a 200-yr period, culminating in a total of 5,306 valid species recognized today. About 38% of all described copepod species utilize either vertebrate (2,450 spp.) or invertebrate hosts (2,856 spp.), however, many host groups have not been thoroughly examined, and for this reason even approximate estimates of true species numbers are futile. Plotting the proposal of new species by decade (Fig. 1) shows a sharp rise since 1950 with 67% of the species having been described in the preceding 65 years. This period of exceptionally rapid progress can be attributed to a number of highly prolific investigators such as Arthur Humes, Il-Hoi Kim, Ju-shey Ho and Jan Stock who, single-handedly or in collaboration with other authors, described 698, 356, 290 and 246 species, respectively. Historically, the number of described copepod species parasitizing fish typically outnumbered those known to be associated with invertebrates. Only during the mid-1970s the species curves of both categories converged and during the last 30 years the discovery of new species associated with invertebrate hosts appears to progress more rapidly. Despite a significant drop in the number of specialists working on symbiotic copepods the steady addition of new taxa shows that the dynamism of their taxonomy is clearly set to continue.
Prof. Il-Hoi Kim: a tribute
Authors: HUYS RONY
Published: October 2016

Prof. Il-Hoi Kim was born during the Korean War on 28 February 1952 in Buan, North Jeolla Province (South Korea), near the coast of the Yellow Sea whose tidal flats would become one of his favourite sampling grounds during his scientific career. From an early age he developed an intense interest in natural history in general and marine biology in particular. He obtained his B.Sc. in 1974 at the Department of Biology Education, Gongju National College of Education. Between 1974 and 1976 he was conscripted into the South Korean military during which he progressed to the rank of lieutenant of artillery in the Reserve Officers’ Training Corps (ROTC). After his graduation in 1980 at the Department of Zoology, Seoul National University, Il-Hoi Kim moved to the Department of Biology, Gangneung-Wonju National University on the East Sea coast where he was first appointed lecturer (1981) before taking up the position of assistant professor (1983), associate professor (1987) and full professor (1993). In 1985 he had previously completed his Ph.D. dissertation on Korean barnacles at Seoul National University under the supervision of the late Prof. Hoon Soo Kim, a pioneer in marine invertebrate taxonomy and renowned as the father of carcinology in Korea.
Zbigniew Kabata—17 March 1924–4 July 2014—Metamorphosis of a Parasitologist
Authors: BENZ GEORGE W. , GOATER TIMOTHY M.
Published: October 2016

Birth deposits most future scientists within a standard deviation or so of average, with life proceeding with its typical bumps and ruts. For a few, however, life begins as or soon transpires into a Homeric challenge. Those who emerge from such beginnings to widely contribute to humanity become mankind’s cherished dignitaries... exemplars promulgating the legitimacy of hope and lending encouragement for progress. Zbigniew Kabata, an outstanding parasitologist and copepodologist who died at age 90 on the 4th of July 2014 in Nanaimo, British Columbia, Canada was such a giant.
Schistobrachia kabata sp. nov. (Siphonostomatoida: Lernaeopodidae) from rajiform hosts off South Africa
Authors: DIPPENAAR SUSAN M.
Published: October 2016

The genus Schistobrachia Kabata, 1964 (Lernaeopodidae: Siphonostomatoida) currently accommodates five species of which two infect holocephalans and three utilize elasmobranchs. Kensley & Grindley (1973) reported three females from “Dipturus batis” (Linnaeus, 1758) collected in Table Bay, South Africa, which they assigned to S. ramosa (Krøyer, 1863), a species previously known only from the North Atlantic. Re-examination of these specimens (labelled Charopinus ramosus Krøyer, 1863 and deposited in the Iziko South African Museum) and additional Schistobrachia material newly collected from the gills of various Rajiformes off the South African west and south coasts, showed that Kensley & Grindley’s (1973) earlier record of S. ramosa was misidentified and in reality represents a distinct species, S. kabata sp. nov. Both sexes of the new species are described using light and/or scanning electron microscopy.
High diversity of Caligus species (Copepoda: Siphonostomatoida: Caligidae) in Taiwanese waters
Authors: HO JU-SHEY , LIN CHING-LONG , LIU WEI-CHENG
Published: October 2016

Caligidae, commonly known as sea lice, is the most speciose family of symbiotic copepods comprising over 490 species classified in 31 genera. Caligus Müller, 1785 is the largest genus of this family comprising 255 species. Fifty-three species of Caligus have been reported from Taiwan so far, representing 20.78 % of Caligus currently known in the world. Nevertheless, we believe many more species of Caligus are yet to be discovered from the waters of Taiwan, because only 17.71 % (553/3,121 species) of the potential fish hosts occurring in Taiwanese waters have been examined for parasitic copepods so far. Among the countries in the Far East, Taiwan exhibits the shortest coastline yet displays the highest diversity of Caligus species. This seemingly contradictory phenomenon may be explained by the fact that the Island of Taiwan is straddling over the border of two ecological realms in the western North Pacific, viz. the Temperate Northern Pacific Realm and the Central Indo-Pacific Realm. Pseudocaligus longipes Moon & Kim, 2012 is formally transferred to the genus Caligus as C. longipes (Moon & Kim, 2012) comb. nov.
Approaches to understand and predict the influence of rapid heat-up on degradation and strength of carbon fibre polymer matrix composites
Authors: Wolfrum Johannes , Whitney Ellen , Eibl Sebastian
Published: October 2016

This study focuses on understanding and prediction of short-term thermal degradation of polymer matrix composites. One sided irradiation of two commercial composites (HexPly® 8552/IM7 and M18-1/G939) is carried out on specimens of various thickness (2, 4, 6 mm) at different heat fluxes (50 and 80 kW/m2) for various exposure times prior to ignition. The aim is to correlate the amount of the applied thermal energy with the heat damage and the residual mechanical strength. Among the two primary components of each matrix the epoxy resin is observed to degrade faster than the thermoplastic under thermal load, as measured by IR spectroscopy. A correlation is achieved between the interlaminar shear strengths and the relative amount of the residual matrix components. The interlaminar shear strengths and degradation processes are assessed in dependence of the applied energy per volume. The derived relationships and a chemometric analysis of IR spectra, can be used to rapidly estimate mechanical properties, as well as other properties of specimens with unknown thermal preload. Degradation processes are discussed in detail.
Precursors to suicidality and violence on antidepressants: systematic review of trials in adult healthy volunteers
Authors: Bielefeldt Andreas Ø , Danborg Pia B , Gøtzsche Peter C
Published: October 2016

Objective

To quantify the risk of suicidality and violence when selective serotonin and serotonin-norepinephrine reuptake inhibitors are given to adult healthy volunteers with no signs of a mental disorder.

Design

Systematic review and meta-analysis.

Main outcome measure

Harms related to suicidality, hostility, activation events, psychotic events and mood disturbances.

Setting

Published trials identified by searching PubMed and Embase and clinical study reports obtained from the European and UK drug regulators.

Participants

Double-blind, placebo-controlled trials in adult healthy volunteers that reported on suicidality or violence or precursor events to suicidality or violence.

Results

A total of 5787 publications were screened and 130 trials fulfilled our inclusion criteria. The trials were generally uninformative; 97 trials did not report the randomisation method, 75 trials did not report any discontinuations and 63 trials did not report any adverse events or lack thereof. Eleven of the 130 published trials and two of 29 clinical study reports we received from the regulatory agencies presented data for our meta-analysis. Treatment of adult healthy volunteers with antidepressants doubled their risk of harms related to suicidality and violence, odds ratio 1.85 (95% confidence interval 1.11 to 3.08, p = 0.02, I2 = 18%). The number needed to treat to harm one healthy person was 16 (95% confidence interval 8 to 100; Mantel-Haenszel risk difference 0.06). There can be little doubt that we underestimated the harms of antidepressants, as we only had access to the published articles for 11 of our 13 trials.

Conclusions

Antidepressants double the occurrence of events in adult healthy volunteers that can lead to suicide and violence.
Educational functioning of children of parents with chronic physical illness: A systematic review
Authors: Chen Cliff Yung-Chi
Published: October 2016

A systematic review of the literature was performed to answer the question: What are the effects of parental chronic physical illness on children’s educational functioning? Thirteen studies that met the inclusion criteria for the purpose of this review were identified, indicating the paucity of research on the topic. The results found that children and adolescents of chronically ill parents missed more school days than their peers of healthy parents and were at a higher risk for lower academic performance. Parent’s physical impairments due to chronic illness and demands of parental illness impinging on parenting and social and financial resources in the family may indirectly affect children’s educational functioning. Implications for school psychology practice and research are provided.
Pulmonary artery intramural leiomyosarcoma mimicking pulmonary aneurysm
Authors: Kanaoka Rie , Takahashi Yusuke , Morita Shigeki , Dejima Hitoshi , Matsutani Noriyuki , Kawamura Masafumi
Published: October 2016

Chest radiography indicated a well-defined rounded mass at the left lung hilum in a 77-year-old former smoker. Chest computed tomography revealed a longitudinal saccular enlargement of the left pulmonary artery with surrounding soft tissue opacity. Resection of the left lower lobe with segment 1 + 2c was carried out to completely remove the dilated pulmonary artery. The resected specimen revealed obvious dilatation of the interlobar pulmonary artery and its branches. A small yellowish well-demarcated myxoid tumor was contained in this lesion, which was diagnosed as a primary pulmonary artery intramural leiomyosarcoma.
Chest wall resection for mesothelioma recurrence after surgery
Authors: Bertoglio Pietro , Fanucchi Olivia , Ricciardi Sara , Chella Antonio , Lucchi Marco , Mussi Alfredo
Published: October 2016

Malignant pleural mesothelioma is an aggressive and usually fatal disease, and its optimal management is still under debate. Surgery for recurrent malignant mesothelioma has been reported rarely in highly selected cases. We report a case of chest wall resection for local recurrence of epithelioid mesothelioma 3 years after cytoreductive surgery. Our patient experienced a 6-month disease-free survival after redo surgery, with complete resolution of his chest pain and discomfort.
Dubinin isotherms versus the Brouers–Sotolongo family isotherms: A case study
Authors: Brouers Francois , Marquez-Montesino Francisco
Published: October 2016

We show how the Dubinin isotherm and its extensions can be related to the isotherms derived from the general Brouers–Sotolongo isotherm. We compare them using benzene vapor adsorbed on activated carbon data from one of the original Dubinin’s paper. We use the same procedure to analyze data from the thesis of Francois Marquez-Montesino on the adsorption on activated carbons prepared from Pinus caribaea saw dust. We conclude by proposing a simple methodology to determine the macroscopic information given by genuine statistical isotherms.
New insights on relationships between street crimes and ambient population: Use of hourly population data estimated from mobile phone users’ locations
Authors: Hanaoka Kazumasa
Published: October 2016

The purpose of this research is to examine relationships between occurrences of snatch-and-run offences and hourly population estimated from mobile phone users’ locations, with particular focus on differences between daytime and nighttime. Using an hourly population dataset allows us to count the so-called ‘ambient population’ by hour of day to accurately quantify the influence of such population as capable guardians and suitable targets in a framework of routine activity theory. Our major findings based on logistic regression models are that (1) the effects of ambient population and (2) its temporal change are large, and the effects differ between daytime and nighttime. During the daytime, snatch-and-run offences are less likely to occur in areas where hourly population density is expect to increase, possibly because offenders are highly sensitive to the risk of being detected by other people. On the other hand, offences at night occur even in relatively crowded areas, and they are only weakly related to population change. In addition, our study found that (3) snatch-and-run offences are more likely to occur in or near local town centres and (4) socially vulnerable neighbourhoods are only targeted at night. We attempted to explain this in terms of offenders’ characteristics and motivations depending on time of day.
The capillary bed offers the largest hemodynamic resistance to the cortical blood supply
Authors: Gould Ian Gopal , Tsai Philbert , Kleinfeld David , Linninger Andreas
Published: October 2016

The cortical angioarchitecture is a key factor in controlling cerebral blood flow and oxygen metabolism. Difficulties in imaging the complex microanatomy of the cortex have so far restricted insight about blood flow distribution in the microcirculation. A new methodology combining advanced microscopy data with large scale hemodynamic simulations enabled us to quantify the effect of the angioarchitecture on the cerebral microcirculation. High-resolution images of the mouse primary somatosensory cortex were input into with a comprehensive computational model of cerebral perfusion and oxygen supply ranging from the pial vessels to individual brain cells. Simulations of blood flow, hematocrit and oxygen tension show that the wide variation of hemodynamic states in the tortuous, randomly organized capillary bed is responsible for relatively uniform cortical tissue perfusion and oxygenation. Computational analysis of microcirculatory blood flow and pressure drops further indicates that the capillary bed, including capillaries adjacent to feeding arterioles (d < 10 µm), are the largest contributors to hydraulic resistance.