Papers by K213919 Zeeshan Mustafa
Pakistan Journal of Medical and Health Sciences, 2022
Background: Post-surgical rehabilitation of Colle’s fracture requires manual and exercise therapy... more Background: Post-surgical rehabilitation of Colle’s fracture requires manual and exercise therapy to restore normal hand function. Aim: To compare the effectiveness of Maitland mobilization and Mulligan’s mobilization with movement on hand function and pain after Colle’s fracture. Study Design: Non randomized clinical study. Methodology: Study was conducted after ethical approval, at physiotherapy department Mayo hospital Lahore in 2019-20. Sample of 60 patients estimated by epitool, was divided into three equal groups (A, B & C). Subjects were screened on the basis of predefined eligibility criteria. All three groups received the respective therapy along with baseline treatment on alternate days for 4 weeks. Pre and post treatment and follow up assessments included VAS, patient rated wrist evaluation questionnaire and wrist ranges of motion with goniometer. Results: Mean age of participants was 45.38±6.58 years. No significant measures were found in any of the outcome measure betwe...
Frontiers in Materials, 2021
Synthesis of efficient antibacterial agents has become extremely important due to the emergence o... more Synthesis of efficient antibacterial agents has become extremely important due to the emergence of antibiotic resistant bacteria. This is especially true for Pseudomonas aeruginosa, an opportunistic pathogen having ability to rapidly develop resistance to multiple classes of antibiotics thus limiting the efficacy of antibiotics approved for clinical use. Aluminum (Al)-doped NiO nanoparticles are of special interest due to their enhanced antipseudomonal properties at certain Al-doping levels. The composite hydroxide mediated (CHM) approach was opted for the synthesis of pure nickel oxide (NiO) and Al-doped nickel oxide (Ni1–xAlxO; x = 5, 10, 15, 20, 25, and 30 wt.%) nanoparticles. X-ray diffraction (XRD) technique was used for structural analysis of these nanoparticles. Morphology and elemental composition of these nanoparticles were investigated by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) spectroscopy, respectively. The optical properties were investigate...
International Journal of Approximate Reasoning, 2021
Emerging viruses causing Acute Encephalitis Syndrome (AES) can be more damaging due to irreversib... more Emerging viruses causing Acute Encephalitis Syndrome (AES) can be more damaging due to irreversible brain damage, irrespective of the identical medical characteristics created by all agents. We report two cases of acute encephalitis syndrome caused by Japanese encephalitis virus from a usually under-reported geographic region of India. Both patients were managed conservatively with favourable outcome in one of them.There should be considerable effort to identify the particular causative agent that triggers AES, bearing in mind the various clinical manifestations of Japanese encephalitis virus. Although there is no significant impact on management, it is possible to prevent transmission to healthy contacts and the community through vector control and vaccination.
Pakistan Journal of Humanities and Social Sciences, 2016
A person’s physical and mental well-being or ill-being is an outcome of multi-level (individual, ... more A person’s physical and mental well-being or ill-being is an outcome of multi-level (individual, household, neighborhood, local, national, and global) social, economic, environmental and political milieus under which the person is living. The present study is primarily in search of finding the non-income determinants of farmwomen’s health in rural areas of district Bahawalnagar (Punjab-Pakistan). SRH is used to gauge the state of respondents’ health. The study reveals that farmwomen’s health determinants are particular to them and their families. The study concludes that marriages at early age may result in serious health concerns for a farmwoman. More participation in activities relating to livestock management may increase a rural woman’s work burden that may ultimately result in poor health status. The study also reveals that greater the number of pregnancies, higher the chances to have poor health status of that working woman. Living under joint family system, increases a woman’...
Advanced Materials Interfaces, 2021
Deterministic creation of multiple ferroelectric states with variant values of polarization in fe... more Deterministic creation of multiple ferroelectric states with variant values of polarization in ferroelectric thin films is promising for multilevel data storage applications. However, the intrinsic bi‐stability of ferroelectric switching makes it challenging to achieve. The deterministic ferroelectric states can be achieved by multistep switching through various means such as controlling domain structure and switching by inducing local disorder, and also by crystal orientations. However, to determine the effect of crystal directions on the stability of multistep polarization reversal requires investigation on different crystal directions. A high‐throughput approach namely combinatorial substrate epitaxy (CSE) is utilized to fabricate La0.7Sr0.3MnO3 (LSMO) polycrystalline substrate to grow PbZr0.2Ti0.8O3 (PZT) films epitaxially with different crystal directions in a single sample. The polarization reversal area is determined as a function of applied voltage along different . From the analysis, it is found that all exhibit multilevel polarization states due to multistep switching events. Further the degree of multilevel polarization states shows a sawtooth‐like oscillatory behavior with increase in [111] miscut angle, which is attributed to influence of local disorder on the domain structure. Therefore, the realization of multilevel data storage device based on deterministic polarization reversal can be achieved with appropriate crystal directed thin films.
Applied Physics A, 2021
The evolution of various properties of cobalt-doped M-type barium hexa-ferrites has been investig... more The evolution of various properties of cobalt-doped M-type barium hexa-ferrites has been investigated in this project. A series of cobalt-doped M-type barium hexa-ferrites having general composition BaCoxFe(12-x)O19 with x = 0.2, 0.4, 0.6, 0.8, 1.0, and 1.2 was prepared using powder metallurgy route. For the thermal decomposition, prepared powders were heat-treated at 1373 Ko for 2 h in a muffle furnace. The structural analysis, 3-D structural visualization, functional group analysis, surface morphology, elemental analysis, optical, dielectric, ferromagnetic, and ferroelectric properties of samples were characterized using different characterization techniques. X-ray diffractometer and Fourier transform infrared spectroscopy confirmed the formation of single-phase hexagonal structure of cobalt-doped M-type barium hexa-ferrite. The optical bandgap energy and saturation magnetization of the prepared samples increased with increasing cobalt concentration which made them suitable for light-emitting diodes and laser formation. Their dielectric properties show the insulting nature of the ferrites. Ferro-electric loop exhibits formation of non-centrosymmetric covalent bonds with an increase in the electric coercive field and remanent polarization. The electric polarization in the unit cell of barium hexa-ferrites is based on FeO6 octahedron. The oxygen O6 is located at three crystallographic sites (4f, 2a and 12 k). The iron ion is normally located at the center of the oxygen octahedron. The formation of non-centrosymmetric covalent bonds is due to the shifts off-center of iron ions under the application of external field. The ferroelectric loops are also not properly closed which indicates the magnetoelectric (ME) coupling and improves multiferroicity of the material.
Optical Materials, 2021
Abstract Numerous endeavors have been exerted to devise deep-blue light-emitting materials (LEMs)... more Abstract Numerous endeavors have been exerted to devise deep-blue light-emitting materials (LEMs) for organic light-emitting devices (OLEDs). Nevertheless, deep-blue light-emitting materials exhibiting high efficiency for simple-structured OLEDs are still scarce. Herein, a donor-acceptor based LEM, 4'-(4, 5-diphenyl-1-(3-(pyren-1-yl)phenyl)-1H-imidazole-2-yl)-N,N-diphenylbiphenyl-4-amine (TPA-PyI) is developed by merging imidazole, triphenyl-amine and pyrene units for OLEDs. TPA-PyI is used as the emitting layer in OLED device, which emits a deep-blue fluorescence at 444 nm. With a current efficiency (CE) of 3.05 cd/A and a power efficiency (PE) of 2.95 lm/W, an EQE of 2.97% is achieved. High thermal-stability is achieved with decomposition-temperature (Td) of 516 °C.
Folia Microbiologica, 2021
Shiga toxin-producing Escherichia coli (STEC) is an important foodborne pathogens, known to cause... more Shiga toxin-producing Escherichia coli (STEC) is an important foodborne pathogens, known to cause enteric infections especially diarrhea, mainly attributed to Shiga toxins (Stxs). The use of certain antibiotics for treating this infection is controversial, owing to an increased risk for producing Stxs (Stx 1 and Stx 2). Increased antibiotic resistance is also thought to be involved in the pathogenesis of STEC diseases. The purpose of this study was to analyze the effects of antibiotics on induction of Stx 1 and Stx 2 in clinical STEC isolates and to investigate the relationships between increased resistance and Stx production. Fifteen clinical isolates were treated with sub minimum inhibitory concentrations (Sub MIC) of clinically used antibiotics (ciprofloxacin, fosfomycin, tigecycline, and meropenem), and the changes in expression levels of stx1 and stx2 genes were estimated using qRT-PCR. The expressions of Shiga toxins were found to be increased up to 6.5- and eightfold under ciprofloxacin and tigecycline Sub MIC, respectively. Fosfomycin had weak induction effect of up to twofold, whereas meropenem had the weakest influence on such expression. Resistant isolates were found to be more prone to increased expression of toxins.
Journal of Microbiology & Experimentation, 2020
Materials and methods Study design One hundred and eighty three (Male: Female-110:73) blood sampl... more Materials and methods Study design One hundred and eighty three (Male: Female-110:73) blood samples were collected from the various OPDs and Wards like Pediatrics, Medicine, PICU, etc. from patients from Aligarh and adjoining areas presenting with signs and symptoms of hepatitis in JNMCH, AMU, Aligarh, The cases included covered area of about 30 km including city and villages that have deranged LFT reports and jaundice with some cases of raised PT-INR. Study area Aligarh is a district in the state of Uttar Pradesh, India with a population of 36,73,889 of which male and female were 19,51,996
Physical Review Applied, 2020
The electric field control of the exchange bias has considerable application scope in modern spin... more The electric field control of the exchange bias has considerable application scope in modern spintronic devices such as magnetic random-access memories. Herein, we utilize an all-solid-state Li-ion redox capacitor with an antiferromagnetic electrode for reversible control of the exchange bias in a Co/Co 3 O 4 heterostructure. The controlled intercalation and deintercalation of Li ions in the antiferromagnetic Co 3 O 4 anode via galvanostatic charge and discharge enables reversible and nonvolatile control of the exchange bias. The mechanism of exchange-bias control in the Co/Co 3 O 4 heterostructure is studied using various characterization techniques. This work establishes an approach to control the exchange bias in all-solidstate magnetoionics, which is of great practical importance for the development of modern spintronic devices.
Antibiotics, 2020
Multidrug resistance (MDR) and hypervirulence (hv) have been long considered distinct evolutionar... more Multidrug resistance (MDR) and hypervirulence (hv) have been long considered distinct evolutionary traits for Klebsiella pneumoniae (Kp), a versatile human pathogen. The recent emergence of Kp strains combining these traits poses a serious global threat. In this article, we describe the phenotypic and genomic characteristics of an MDR hvKp isolate, MAR14-456, representative of a nosocomial outbreak in Moscow, Russia, that was recovered from a postoperative wound in a patient who later developed multiple abscesses, fatal sepsis, and septic shock. Broth microdilution testing revealed decreased susceptibility of MAR14-456 to carbapenems (MICs 0.5–2 mg/L) and a high-level resistance to most β-lactams, β-lactam-β-lactamase-inhibitor combinations, and non-β-lactam antibiotics, except ceftazidime-avibactam, amikacin, tigecycline, and colistin. Whole-genome sequencing using Illumina MiSeq and ONT MinION systems allowed to identify and completely assemble two conjugative resistance plasmids,...
Applied Physics A, 2020
A series of Ag x-substituted Co 0.05−x Zn 0.95 O (x = 0.00-0.05) nanoparticles calcined at 700 °C... more A series of Ag x-substituted Co 0.05−x Zn 0.95 O (x = 0.00-0.05) nanoparticles calcined at 700 °C have been synthesized using a simple co-precipitation technique. The prepared nanoparticles have been analyzed for their structural, optical, magnetic, and dielectric properties using X-ray diffractometer, Fourier infrared spectroscopy, UV-visible spectroscopy, vibrating sample magnetometer, and inductor capacitor and resistor meter, respectively. The XRD results verify the formation of pure hexagonal wurtzite structure. FTIR spectra show a band at 439 cm −1 that is the characteristic stretching band of Zn-O which also confirms the formation of hexagonal structure. The band-gap energy decreases as the concentration of Ag increases except for samples with concentration x = 0.01 and x = 0.03. VSM results reveal that nanoparticles exhibit ferromagnetism at room temperature. The dielectric constant and tangent loss decreases with increasing frequency. However, the a.c. conductivity increases with increasing frequency. The prepared nanoparticles can be used in a variety of applications such as optoelectronic, memory, and microelectronic devices.
Applied Physics A, 2020
In this research project a series of chromium substituted barium hexa-ferrites with formula BaCr ... more In this research project a series of chromium substituted barium hexa-ferrites with formula BaCr x Fe (12-x) O 19 (x = 0.1, 0.2, 0.3, 0.4, 0.5, 0.6) have been synthesized using powder metallurgy route, sintered at 1100 °C for 2 h. The structural, functional analysis, surface morphology, magnetic and ferroelectric properties have been investigated using X-ray diffractometer, Fourier infrared spectroscopy, scanning electron microscopy, vibrating sample magnetometer, and ferroelectric technique, respectively. The structural analysis reveals the formation of barium hexaferrite structure with minor secondary phase of Hematite α-Fe 2 O 3 in first five samples. Surface morphology shows that all grains have definite grains shape and grain boundaries. VSM analysis revealed the antiferromagnetic loops due to existence of hematite phase in (x = 0 to x = 0.5) samples, whereas the sample (x = 0.6) shows the ferro-magnetic behavior. Ferroelectric measurement shows centrosymmetric and non-centrosymmetric orientation and maximum remnant polarization due to presence of more Fe 2+ ions in (x = 0.1-0.5) so that not proper closing of first five samples enhanced the magnetoelectric (ME) coupling.
Physical Review Applied, 2019
The emerging field of ionics-controlled magnetism is highly promising towards switching magnetism... more The emerging field of ionics-controlled magnetism is highly promising towards switching magnetism on and off magnetism at the touch of a button and efficient low-power-consumption spintronic devices. It can be achieved through the doping of ions, such as O 2− and Li + , into reactive magnetic materials. The advantages of a solid-state electrolyte far exceed those of a conventional electrolyte. Here, we utilize the all-solid-state Li + redox capacitor structure to modulate the magnetism of amorphous Co 40 Fe 40 B 20 thin films. The change in magnetism of Co 40 Fe 40 B 20 due to lithiation-delithiation is investigated by measuring its magnetic hysteresis loop along the out-of-plane (in-plane) direction under the charge (discharge) state. Reversible saturation magnetization of 27% in Co 40 Fe 40 B 20 thin films is achieved due to conversion reactions with Li +. Further lithiation causes the out-of-plane axis to become harder, and thus, leads to an increase in the magnetic anisotropy along the in-plane direction. This provides a means to control the magnetic properties of metallic magnetic thin films by solid-state ionics.
Journal of Superconductivity and Novel Magnetism, 2020
Co-existence of ferroelectric and ferromagnetic nature in bismuth substituted M-type barium hexaf... more Co-existence of ferroelectric and ferromagnetic nature in bismuth substituted M-type barium hexaferrites has been investigated in this current project. A series of samples with formula BaBixFe(12-x) (where x varies from 0.2 to 1.2 with step size of 0.2) have been prepared by conventional powder metallurgy route. The structural, functional group analysis, surface morphology, optical, dielectric, ferroelectric, and ferromagnetic properties of samples are characterized using X-ray diffractometer (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), UV-visible spectroscopy (UV-Vis), LCR meter, ZT-IA, and vibrating sample magnetometer (VSM) respectively. XRD and FTIR confirm the single phase of hexagonal structure of bismuth doped M-type barium hexaferrite. The platelet like structures is observed on the surface of the samples. The optical band gap energy decreases due to the formation of intermediate states between the valence and conduction bands as the concentration of Bi ions increases. The variation in dielectric constant and ac conductivity depends upon the frequency of the applied field as well as the composition of the samples. P-E loop shows clear ferroelectric behavior. The maximum saturation polarization of 5.42 μC/cm2 is observed. The presence of FeO6 octahedron at three (12 k, 2a, and 4f2) crystallographic sites in the hexagonal unit cell is the origin of induced polarization. Magnetic properties reveal the strong ferromagnetism of bismuth doped M-type barium hexaferrite at room temperature.
Applied Physics A, 2020
In this present work, antimony-substituted cadmium ferrites with formula CdSb x Fe 2−x O 4 (x = 0... more In this present work, antimony-substituted cadmium ferrites with formula CdSb x Fe 2−x O 4 (x = 0.1, 0.2, 0.3, 0.4, 0.5) have been synthesized using the ceramic route. The structural, surface morphological, magnetic and optical properties have been investigated using X-ray diffractometer (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy, vibrating sample magnetometer and UV-visible spectroscopy, respectively. XRD confirms the single cubic spinel structure of antimony-substituted cadmium ferrites. The lattice parameter increases due to the replacement of Fe +3 (0.64 Å) ions with Sb +3 (0.76 Å). FTIR gives the main vibrational band that lies in the range of 400-600 cm −1 which might be due to the stretching vibration of oxygen and metal ions, confirming the formation of spinel ferrite. The saturation magnetization decreases and coercivity increases as the concentration of non-magnetic antimony ion increases. The optical band gap energy decreases with increasing the concentration of antimony ions.
Journal of the College of Physicians and Surgeons Pakistan, 2019
Previous studies, done in Pakistan, have not analysed GLUT 1 overexpression with grades of oral S... more Previous studies, done in Pakistan, have not analysed GLUT 1 overexpression with grades of oral SCC and smoking context. In addition, some studies have shown cytoplasmic and some have revealed nuclear positivity of GLUT 1. This study was conducted to correlate immunohistochemical overexpression of GLUT 1 in oral squamous cell carcinoma with histopathological grade and smoking.
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Papers by K213919 Zeeshan Mustafa