Nur Fatihah - Academia.edu (original) (raw)

Papers by Nur Fatihah

Przegląd Elektrotechniczny, Dec 7, 2021

Recently, the 'forgotten baby syndrome' term has become a regular headline in the newspaper. The ... more Recently, the 'forgotten baby syndrome' term has become a regular headline in the newspaper. The syndrome is referred to a scenario of a child dying from a heat stroke after being accidentally left in a car. Herein, the Smart Child Seat (SCS) has been designed with a real-time monitoring-based system that consists of temperature, humidity, heart rate, sound, ultrasonic and a carbon monoxide sensor to monitor and measure the condition of the child left inside the car. The system's requirement is designed based on the market survey to provide direction for the optimized SCS system. The system will send the notification via the Blynk IoT application to the parents if there is an abnormal reading from the sensors. Streszczenie. Ostatnio termin "syndrom zapomnianego dziecka" stał się stałym nagłówkiem w gazecie. Zespół odnosi się do scenariusza, w którym dziecko umiera na udar cieplny po przypadkowym pozostawieniu go w samochodzie. W tym przypadku inteligentny fotelik dziecięcy (SCS) został zaprojektowany z systemem monitorowania w czasie rzeczywistym, który składa się z temperatury, wilgotności, tętna, dźwięku, ultradźwięków i czujnika tlenku węgla, aby monitorować i mierzyć stan dziecka pozostawionego w środku samochód. Wymagania systemu są projektowane na podstawie badania rynku, aby wskazać kierunek dla zoptymalizowanego systemu SCS. System wyśle powiadomienie za pośrednictwem aplikacji Blynk IoT do rodziców, jeśli nastąpi nieprawidłowy odczyt z czujników. (Projekt inteligentnego fotelika dziecięcego zorientowanego na użytkownika dla wymagań NCAP za pośrednictwem platformy IoT)

Malaysian applied biology, Jul 19, 2021

Salinity is the second major obstacle after drought conditions that hinder the high productivity ... more Salinity is the second major obstacle after drought conditions that hinder the high productivity of plants. Many factors contribute to the salinity problem, consequently affects the plant physiology, growth as well as production. Therefore, this research aims to determine the effects of betaine-rich Nano fertilizer on physiological parameters of sweet corn (Z. mays var. saccharata) and A. thaliana under salt stress. In this study, plants were grown in a controlled plant growth room. Five salinity levels (S0:0 dS/m, S1:2 dS/m, S2:4 dS/m, S3:6 dS/m, and S4:8 dS/m), two concentrations of betaine (B0:0 mM and B1: 50 mM) and the application of Nano fertilizer (N0: without Nano fertilizer and N1: with Nano fertilizer) were tested in Randomized Complete Block Design (RCBD) with three replicates. Data for chlorophyll content, chlorophyll fluorescence (F V /F M), and leaf relative water content (RWC) were recorded. The results were analyzed using a two-way analysis of variance (ANOVA) followed by the Duncan posthoc test. Sweet corn and A. thaliana under salt stress showed a significant increase in chlorophyll content and leaf RWC, but not in F V /F M. Therefore, it is anticipated that betaine-rich Nano fertilizer could reduce salt stress by improving the physiological parameters in sweet corn as well as in A. thaliana.

Bekerja sendiri" sebagai usahawan merupakan kerjaya yang harus diberi perhatian sebagai alternati... more Bekerja sendiri" sebagai usahawan merupakan kerjaya yang harus diberi perhatian sebagai alternatif oleh para graduan selain makan gaji dalam usaha menghadapi masalah pasaran pekerjaan yang terhad dan kadar pengangguran yang tinggi di kalangan graduan. Oleh itu, pihak berwajib antaranya Kementerian Pengajian Tinggi (KPT) memainkan peranan penting dalam membudayakan keusahawanan dalam kalangan pelajar IPT dan graduan agar kerjaya usahawan menjadi pilihan setelah tamat pengajian. Justeru, kajian ini mengkaji tahap kompetensi pembudayaan keusahawanan dalam kalangan graduan di Malaysia dengan tumpuan terhadap mereka yang bekerja sendiri. Kajian ini menggunakan data primer yang dikumpul melalui survei Kajian Pengesanan Graduan dari tahun 2007 hingga 2009 yang melibatkan 3062 sampel graduan IPTA dan IPTS di Malaysia dan dianalisis menggunakan kaedah Analisis Faktor. Hasil kajian menunjukkan bahawa Sahsiah Diri (kematangan, jati diri, keupayaan berdikari, keyakinan diri, berpengetahuan dan kebolehan menyelesaikan masalah serta membuat keputusan) dan Kemahiran Insaniah (keupayaan menyelesaikan masalah, kritis dan kreatif, analitikal, nilai-nilai positif dan kemahiran berkomunikasi) merupakan dua dimensi personaliti utama dalam diri seseorang graduan yang melibatkan diri dalam bidang keusahawanan.

The contamination of untreated leachate effluent is a potential source to effect of soil, surface... more The contamination of untreated leachate effluent is a potential source to effect of soil, surface and groundwater.In this study, the treatment of landfill leachate by electro-Fenton (EF) method was studied. The objectives of the study are to determine the optimum current density, the optimum treatment time, the optimum pH, the optimum hydrogen peroxide (H2O2) dosage and the optimum ferrous sulphate heptahydrate (FeSO4 •7H2O) dosage of landfill leachate samples using aluminium electrode. From the results, it is verified that electro-Fenton method (EF) can used efficiently to degrade leachate organics. The best removal efficiencies were obtained when current density value is 200 A/m 2 , treatment time is 25 min and pH value is 4. The optimum dose of hydrogen peroxide (H2O2) is 800 mg/L which was obtained 78% and 96% of COD and colour removal efficiency respectively. The optimum ferrous ion (Fe 2+ ) is 1000 mg/L which was obtained 75% and 94% of COD and colour

Standard Reference Material (SRM) 1921 is a matte finish polystyrene film and is intended for use... more Standard Reference Material (SRM) 1921 is a matte finish polystyrene film and is intended for use in calibrating the wavelength scale of spectrophotometers in the infrared (IR) spectral region from 545.48 cm-l to 3082.19 cm-i (18.3325 [im to 3.2445 jim). Thirteen absorption peak positions are certified using a center-of-gravity technique. The expanded uncertainty values associated with these peak values are between 0.06 cm-^ and 0.66 cm-', except for 1.84 cm-i at 2850.13 cm-' and 12.29 cm-' at 545.48 cm-'. This publication describes the IR spectrophotometer, instrument calibration, SRM material, measurement procedure, calibration of polystyrene films, and uncertainty determination. Keywords; Fourier transform infrared spectrophotometer; infrared wavelength standard; polystyrene film; standard reference material; wavelength scale; wavelength standard. * National Physical Laboratory, New Delhi, India # University of Hawaii, Honolulu, Hawaii

Landfill leachate contains a large amount of organic, inorganic and heavy metal contents. Untreat... more Landfill leachate contains a large amount of organic, inorganic and heavy metal contents. Untreated leachate is a potential source to effect of soil, surface and groundwater. The combined treatment offers an alternative technique in dealing to leachate treatment. This research is to determine the effectiveness of combined electro-Fenton and sequencing batch reactor (SBR) method on the removal of SS, colour, COD and NH3-N. The experimental involved three major parts were coagulation-flocculation, electro-Fenton and SBR method. This process could be operated independently in a batch mode and optimum conditions for each treatment were identified. In the combined process, leachate was first fed to coagulationflocculation for pre-treatment. Then, the effluent from that process was oxidized in electro-Fenton process. The final process is the effluent of leachate was fed to a SBR method. The combined treatment was operated under the optimum conditions for all the processes. The result of c...

Bulgarian Journal of Agricultural Science, 2020

Adibah, F. S. F., Jahan, Md. S. & Fatihah, H. N. N. (2020). Betaine-rich Nano fertilizer improves... more Adibah, F. S. F., Jahan, Md. S. & Fatihah, H. N. N. (2020). Betaine-rich Nano fertilizer improves growth parameters of Zea mays var. saccharata and Arabidopsis thaliana under salt stress. Bulg. J. Agric. Sci., 26 (1), 177–185 Salinity or salt stress contributed to major problem in agriculture world. More than 50% of agriculture and irrigated land are affected by salt. This condition limits the available nutrients in the soil, induces physiological disorder and antioxidant dysfunction in plant, and hence influences plant growth and productivity. The relation of betaine and Nano fertilizer remained unknown. The present study aims to determine the effects of betaine-rich Nano fertilizer on growth parameters of sweet corn (Z. mays var. saccharata) and A. thaliana plants under salt stress. Plants were grown with a proper agronomic practices in a controlled plant growth room. Different salinity levels (S0:0 dS/m, S1:2 dS/m, S2:4 dS/m, S3:6 dS/m and S4:8 dS/m), two different concentrations...

Terengganu is one of the states in East Coast Peninsula Malaysia that provides the natural habita... more Terengganu is one of the states in East Coast Peninsula Malaysia that provides the natural habitat for the herbal plants and non-tree plants. The question of the relationship between herbal and non-tree plants, their abundance and relationship with edaphic factor is still unsolved. This study was conducted at Chemerong Recreational Forest, Dungun, Terengganu to determine the abundance and diversity of herbal and non-tree plants species, and its relationship with the physico-chemical soil properties. Two types of forest were chosen which are riparian forest and inland forest. Two plots with the sizes of 5m x 10 m were built in each forest types and which means the total of area sampling in this study was 200m2. Result shows that a total of 885 individuals of herbal and non-tree plants were recorded from 68 species, 40 genera and 22 families. Riparian forest plot recorded 558 individuals from 55 species, 37 genera and 21 families while inland plot recorded 327 individuals from 36 spec...

Advances in Intelligent Systems and Computing, 2020

The purpose of this project is to design and develop a security system for monitoring any intrude... more The purpose of this project is to design and develop a security system for monitoring any intruders and others emergency situation around the house and display to the user in the form of computer monitor display. The chosen sensor is PIR motion sensor and the semiconductor sensor. The PIR can be used to detect movements, normally used to detect human movement when passing in or out of range sensor The gas sensor used in this project is MQ2, the semiconductor gas sensor which detects the presence of combustible gas and smoke at concentrations from 300 to 10,000 ppm. These sensors will detect the concentration of the gas according the voltage output of the sensor. To make the sensors operate in the alarm system and data monitoring system, Arduino Uno was used as the microcontroller for the whole system. The circuit also includes LEDs, buzzer, exhaust fan and Xbee. Xbee will send the data reading from gas sensor to data monitoring system that display on computer monitor display.

Jurnal Sains Kesihatan Malaysia, 2018

Malaysia was ranked at 148 by World Health Organization (WHO) in suicide statistic for 2012, wher... more Malaysia was ranked at 148 by World Health Organization (WHO) in suicide statistic for 2012, where males had a higher tendency to commit suicide, recording a 4.7 per 100,000 in comparison to female (1.5 per 100,000). As hanging is one of the most common methods to commit suicide, this retrospective study was conducted to observe the incidence of suicide by hanging in Klang Valley from four different hospitals. The current study is conducted to provide local database of suicide occurrence by hanging in Klang Valley. A total of 893 suicide cases by hanging from 2007 to 2016 were recorded from post mortem records and analysed. Suicide rates in Klang Valley showed a rising trend from 2007 to 2016. Males from age group 30 to 34 years old and females from 20 to 24 years old have the highest number of suicide fatalities compared to other age groups. Meanwhile, fatalities from the age group of 10 to 14 years old and 80 years old and above showed similar result which is only 7%. 78% of the fatalities were recognized as Malaysian and half of them were Indian. Majority of the victims/cases (45%) who committed suicide by hanging are of Hindu religious denomination. Non-citizen in Malaysia that have the highest suicide rates were from Nepal, Indonesia and Myanmar. Victims also committed suicide more during the day and the peak hours being at 12.00 pm to 5.59 pm.

Iranica journal of energy and environment, 2016

In this study a simple and rapid harvesting method using electro conductive polymer coated saw du... more In this study a simple and rapid harvesting method using electro conductive polymer coated saw dust has been presented as a new coagulant for separating Chlorella vulgaris from a diluted suspension. Polypyrrole (PPy) coated saw dust as a novel coagulant was prepared via in-situ polymerization of pyrrole (Py) monomer using FeCl3 oxidant in aqueous medium in which saw dust particles were suspended. The zeta potential of coagulant and C. vulgaris and X-ray photoelectron spectroscopic (XPS) analysis of coagulant were characterized. PPy maintain predominantly positive charge over a wide pH range (2-10) with an isoelectric point 10.4 while, C. vulgaris maintained negative surface charge from pH 5 and onward with isoelectric point 3.8. The microalgae showed the highest separation efficiency at pH 10. The maximal recovery efficiency reached more than 90% for microalgae at a stirring speed of 120 rpm within 7 min. The maximal adsorption capacity of C. vulgaris was 28.8 mg dry biomass/mg-saw dust coated PPy. The concentration factor obtained is higher than 32 which save energy and time associated with microalgal harvesting and allows a reduction in the equipment size necessary for biomass dewatering and improves the feasibility of using these microorganisms in biofuel or wastewater processes.

Journal of Applied Pharmaceutical Science, 2017

The three main objectives of this study were to evaluate the extracted essential oil in terms of ... more The three main objectives of this study were to evaluate the extracted essential oil in terms of total phenolic and flavonoids contents, radical scavenging activity and sun protection factor. The antioxidant activity of the essential oil was determined by using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity while the content of total phenol was determined by using Folin-Ciocalteu reagent. Aluminium chloride colorimetric method was used for flavonoid content determination while photo-protective potential was determined by using Mansur's sun protection factor (SPF) value. The extracted essential oil was found to contain low levels of total phenolic contents (2.30±0.003µg/g as garlic acid equivalent) and total flavonoid contents (254.99±0.64 µg/g as quercetin equivalent) respectively. DPPH free radical scavenging activity of the essential oil was40.73%±1.32 at 200µg/ml. The Mansur's equation of sun protective factor showed that the essential oil possesses some sun protective potentials. This study suggests that the essential oil from Etlingera elatior could be potentially used as a new source of natural antioxidant and ingredient that can be incorporated into the sunscreen cosmetic products.

Malaysian Journal of Microbiology, 2013

Aim: Despite the endemicity of typhoid in Kelantan, epidemiological data showing typhoid associat... more Aim: Despite the endemicity of typhoid in Kelantan, epidemiological data showing typhoid association to age, sex, ethnicity and district of patients is limited. This retrospective study investigated the statistical association of these variables from a retrieved registry. Methodology and results: Cross-tabulation using SPSS was used to analyze 1394 cases of confirmed typhoid patients admitted to various hospitals in Kelantan state over a six-year period. Fourteen age groups with a five-year range interval were generated. There was a significant association between typhoid infection and sex of subjects, whereby females were generally more susceptible than males. Ethnicity and district of typhoid patients did not show significant association. Conclusion, significance and impact of study: The observation of an increased number of typhoid cases with a male predominance in the age group 5-14 and female predominance in the 20-60 age group calls for improved hygiene, continued public health education, together with better laboratory diagnostics to identify carriers, are some measures to control this disease.

Walailak Journal of Science and Technology, Dec 13, 2012

A study was conducted to determine the tree species composition, diversity and above ground bioma... more A study was conducted to determine the tree species composition, diversity and above ground biomass at Redang Island, Terengganu. Two plots of 0.1 ha were established at the inland forest and coastal forest of the island. As the result, a total of 387 trees ≥ 5 diameters at breast height (DBH) were recorded. The coastal forest recorded 167 individuals representing 48 species from 37 genera and 26 families while the inland forest had 220 individuals representing 50 species from 43 genera and 25 families. Shorea glauca (Dipterocarpaceae) was the most important species at the coastal forest with a Species Importance Value Index (SIV i) of 10.5 % while Dipterocarpus costulatus (Dipterocarpaceae) was the most important species at the inland forest with 13.8 %. Dipterocarpaceae was the most important family in both forest plots with FIV i at 20.4 % in the coastal and 21.5 % in the inland forest. The Shannon-Weiner Diversity Index (H') was considered high in both forest plots with 3.4 (H' max = 3.9) at the coastal forest and 3.5 (H' max = 4.0) at the inland forest. Sorenson's Community Similarity Coefficient (CCs) showed that tree species communities between the two forest plots had moderate similarity with CC = 0.5. The Shannon Evenness Index (J') in the two forest plots was 0.89. The total above ground biomass at the coastal forest was 491 t/ha and at the inland forest it was 408 t/ha. From all the species recorded in this study, 11 species were listed as threatened species by IUCN Red Data Book, of which four were listed as endangered and critically endangered, six were listed as lower risk and one species was listed as vulnerable.

The calibration and related measurement services of the National Bureau of Standards are intended... more The calibration and related measurement services of the National Bureau of Standards are intended to assist the makers and users of precision measuring instruments in achieving the highest possible levels of accuracy, quality, and productivity. NBS offers over 300 different calibration, special test, and measurement assurance services. These services allow customers to directly link their measurement systems to measurement systems and standards maintained by NBS. These services are offered to the public and private organizations alike. They are described in NBS Special Publication (SP) 250, NBS Calibration Services Users Guide. The Users Guide is being supplemented by a number of special publications (designated as the "SP 250 Series") that provide a detailed description of the important features of specific NBS calibration services. These documents provide a description of the: (1) specifications for the service; (2) design philosophy and theory; (3) NBS measurement system; (4) NBS operational procedures; (5) assessment of measurement uncertainty including random and systematic errors and an error budget; and (6) internal quality control procedures used by NBS. These documents will present more detail than can be given in an NBS calibration report, or than is generally allowed in articles in scientific journals. In the past NBS has published such information in a variety of ways. This series will help make this type of information more readily available to the user.

The Distribution of Dioscorea hispida Dennst. Germplasm in Terengganu and Phylogenetic Relationsh... more The Distribution of Dioscorea hispida Dennst. Germplasm in Terengganu and Phylogenetic Relationships of Dioscorea spp. using Internal Transcribed Spacer (ITS). ABSTRACT Dioscorea hispida Dennst. is a source of carbohydrates and is also important for medicinal purposes. However, the distributions and phylogenetic relationships of D. hispida were not-well documented in the state of Terengganu. D. hispida germplasms were collected from the seven districts of Terengganu between the months of April 2012 to June 2012. During the samplings and survey, a few of the ecological parameters were measured such as the intensity of light, humidity and temperature as well as chlorophyll content. The locations of the distribution of D. hispida were mapped using the DIVA-GIS software. Subsamples of seven accessions were used for DNA fingerprinting. In phylogenetic analysis, these D. hispida germplasms were subjected to PCR amplification using DNA barcode such as internal transcribed spacer (ITS). The...

The genus Cypripedium L. (Cypripedioideae: Orchidaceae) was in a state of taxonomic chaos for alm... more The genus Cypripedium L. (Cypripedioideae: Orchidaceae) was in a state of taxonomic chaos for almost a century after the name was first established by Linnaeus. The beauty and scarcity of the plants has encouraged many taxonomists and botanists to investigate the relationships within Cypripedium. However, the studies often conflicted with each other and contributed towards difficulty in identification. In this study, a molecular phylogenetic analysis has been conducted on the two plastid DNA (rbcL and matK) and the nuclear DNA (ITS) in order to test the monophyly and intrageneric relationships in Cypripedium. The plastid data was combined with the nuclear ITS to further resolve the relationships among 38 investigated taxa of Cypripedium. Parsimony and Bayesian analyses indicated that the genus is monophyletic and C. irapeanum is sister to the rest of Cypripedium taxa. The phylogenetic results presented provide reliable information of intrageneric relationships in Cypripedium to be applied for future conservation studies. The present study confirmed the distinctiveness of all Endangered (C.