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Effects of daughter tiller removal on shoot and root growth of the parent tiller in Lolium perenne

Grassland Research 2022年第2期1卷 103-110页

作者： arif hasan khan robin Cory Matthew The School of Agriculture and Environment College of SciencesMassey UniversityPalmerston NorthNew Zealand Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensinghBangladesh

Background:This study investigated the effects of daughter tiller removal on parent tiller development in Lolium ***:Plants of *** were grown hydroponically to allow separation of roots by phytomer position on the tiller axis and allowed to form two daughter *** Experiment 1,adult daughter tillers were excised and effects on subsequent main tiller growth were observed for 16 days,on *** Experiment 2,the growth of main tillers with or without daughter tillers was compared over 90–100 *** cultivars,‘Alto’bred from New Zealand germplasm and‘Aberdart’bred from United Kingdom germplasm were ***:Excision of adult daughter tillers reduced the dry weight of older roots at the base of parent tiller axes and accelerated new phytomer *** tillers from forming daughter tillers by new tiller excision resulted in increased individual leaf and root dry weight in tillers without daughter ***:The data indicated that daughter tillers contributed substrate for root development of their parent *** presence of daughter tillers reduced the size of their main tiller but greatly enhanced whole plant yield.

关键词： daughter tiller dry weight main tiller perennial ryegrass phytomer

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Hemodynamic Response Detection Using Integrated EEG-fNIRS-VPA for BCI

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Computers, Materials & Continua 2022年第1期70卷 535-555页

作者： Arshia arif M.Jawad khan Kashif Javed hasan Sajid Saddaf Rubab Noman Naseer Talha Irfan khan National University of Sciences and Technology(NUST) IslamabadPakistan Intelligent Robotics Lab National Center of Artificial IntelligenceNational University of Sciences and Technology(NUST)IslamabadPakistan Department of Mechatronics Engineering Air UniversityIslamabadPakistan Institute of Space Technology IslamabadPakistan

For BCI systems,it is important to have an accurate and less complex architecture to control a device with enhanced *** this paper,a novel methodology for more accurate detection of the hemodynamic response has been developed using a multimodal brain-computer interface(BCI).An integrated classifier has been developed for achieving better classification accuracy using two *** integrated EEG-fNIRS-based vector-phase analysis(VPA)has been *** open-source dataset collected at the TechnischeUniversit鋞Berlin,including simultaneous electroencephalography(EEG)and functional near-infrared spectroscopy(fNIRS)signals of 26 healthy participants during n-back tests,has been used for this *** and physiological noise removal has been done using preprocessing techniques followed by individually detecting activity in both *** resting state threshold circle,VPA has been used to detect a hemodynamic response in fNIRS signals,whereas phase plots for EEG signals have been constructed using Hilbert Transform to detect the activity in each *** threshold circles are drawn in the vector plane,where each circle is drawn after task completion in each trial of EEG ***,both processes are integrated into one vector-phase plot to get combined detection of hemodynamic response for *** of this study illustrate that the combined EEG-fNIRS VPA yields considerably higher average classification accuracy,that is 91.35%,as compared to other classifiers such as support vector machine(SVM),convolutional neural networks(CNN),deep neural networks(DNN)and VPA(with dual-threshold circles)with classification accuracies 82%,89%,87%and 86%*** of this research demonstrate that improved classification performance can be feasibly achieved using multimodal VPA for EEG-fNIRS hybrid data.

关键词： EEG-fNIRS hybrid BCI vector-phase analysis hemodynamic response detection

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The Double Edge Sword Based Distributed Executor Service

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Computer Systems Science & Engineering 2022年第8期42卷 589-604页

作者： Faisal Bahadur arif Iqbal Umar Insaf Ullah Fahad Algarni Muhammad Asghar khan Department of Information Technology Hazara UniversityMansehra21300Pakistan Hamdard Institute of Engineering and Technology Islamabad 44000Pakistan College of Computing and Information Technology The University of BishaBishaSaudi Arabia

Scalability is one of the most important quality attribute of softwareintensive systems,because it maintains an effective performance parallel to the large fluctuating and sometimes unpredictable *** order to achieve scalability,thread pool system(TPS)(which is also known as executor service)has been used extensively as a middleware service in software-intensive *** optimization is a challenging problem that determines the optimal size of thread pool dynamically on *** case of distributed-TPS(DTPS),another issue is the load balancing b/w available set of TPSs running at backend *** DTPSs are overloaded either due to an inappropriate TPS optimization strategy at backend servers or improper load balancing scheme that cannot quickly recover an ***,the performance of software-intensive system is ***,in this paper,we propose a new DTPS that follows the collaborative round robin load balancing that has the effect of a double-edge *** the one hand,it effectively performs the load balancing(in case of overload situation)among available TPSs by a fast overload recovery procedure that decelerates the load on the overloaded TPSs up to their capacities and shifts the remaining load towards other gracefully running *** on the other hand,its robust load deceleration technique which is applied to an overloaded TPS sets an appropriate upper bound of thread pool size,because the pool size in each TPS is kept equal to the request rate on it,hence dynamically optimizes *** evaluated the results of the proposed system against state of the art DTPSs by a clientserver based simulator and found that our system outperformed by sustaining smaller response times.

关键词： Software-intensive systems distributed executor service load balancing overload monitoring multi-threading thread pool performance

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Internal Jugular Vein Graft after Inadvertent Severing of the Internal Carotid Artery during Carotid Endarterectomy and an Urgent Re-Exploration for Immediate Post-Operative Wound Site Bleeding: A Case Report

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Open Journal of Modern Neurosurgery 2023年第2期13卷 94-104页

作者： Md Shahid hasan khan Md Shahidur Rahman Sikdar Muhammad Robiul Hoque Hojaifa Ahmad Aminur Rahman Md Ahsan arif Md Atique Rahman Tanbir Siddique Md Motashimul hasan Md Sumon Rana Md Shafiqul Islam Department of Neurosurgery Dhaka Medical College Hospital Dhaka Bangladesh Department of Neurosurgery Dhaka Medical College Dhaka Bangladesh

Carotid endarterectomy is a well-established treatment for preventing stroke in selected patients. Although there is debate over whether patch angioplasty or primary closure should be used to reconstruct the bifurcation after carotid endarterectomy, there is growing evidence in the literature in favor of patch angioplasty. When compared to primary closure, patch angioplasty during conventional carotid endarterectomy is suggested to lower the incidence of restenosis and recurrent ipsilateral stroke. Various materials have been used as a patch in this procedure, including the saphenous vein, synthetic patches, or less frequently, an internal jugular vein patch where extensive narrowing of the internal carotid artery is evident. In our case, we used an internal jugular vein graft after inadvertent severing the internal carotid artery (ICA) during carotid endarterectomy after the failure of reconstruction with a saphenous vein patch. We also encountered immediate postoperative reactionary hemorrhage following anesthetic reversal, necessitating an urgent re-exploration. The purpose of this case report is neither an attempt to suggest all patients need angioplasty nor to state that an internal jugular vein patch or graft is superior to synthetic material or saphenous veins;rather, it is an attempt to emphasize a potentially effective rescue way to reconstruct inadvertent extensive vascular injury during carotid endarterectomy.

关键词： Carotid Endarterectomy Internal Jugular Vein Graft Venous Patch Reactionary Hemorrhage

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