The background of this study is that an elderly person is 60 years or older. Someone who enters t... more The background of this study is that an elderly person is 60 years or older. Someone who enters the elderly will experience limitations where he will be more dependent on others, the process of making a living stalled and difficult to interact widely. So that some people assume that the elderly are better cared for in an orphanage, because they will be more cared for and able to get along with other elderly people than staying at home alone feeling lonely and abandoned because their children are busy with their work. Stress in the elderly can be influenced by their roommates who has a different culture or are jealous of their roommates who are often noticed by the management of the orphanage and rarely visited by family. The purpose of this study was to determine the description of stress levels in the elderly who live in the Nursing Home of Tresna Budi Pertiwi Bandung. The method used is descriptive design with 22 elderly population. Samples were taken by Total Sampling, while the ...
ABSTRAK Faridah, Siti Nur. 2018. Pengaruh Terapi Bermain Pretend Play Terhadap Perkembangan Kogni... more ABSTRAK Faridah, Siti Nur. 2018. Pengaruh Terapi Bermain Pretend Play Terhadap Perkembangan Kognitif Anak Retardasi Mental di SDLB Kabupaten Lamongan. Skripsi Program Studi S1 Keperawatan, STIKES Muhammadiyah Lamongan. Pembimbing: (1) Hj. Siti Sholikah., S. Kep., Ns., M.Kes. (2) Arifal Aris., S.Kep., Ns., M.Kes Retardasi mental merupakan suatu keadaan dimana perkembangan mental seseorang yang terhenti atau tidak lengkap atau bisa juga dikatakan tidak sesuai dengan tingkat perkembangan anak seusianya. Tujuan penelitian ini untuk mengetahui pengaruh terapi bermain pertend play terhadap perkembangan kognitif anak retardasi mental di SDLB Kabupaten Lamongan. Desain penelitian ini menggunakan desain penelitian ini adalah Quasy Experiment (eksperimen semu) dengan pendekatan Pre-Post Tes Control Design, dengan teknik purposive sampling. Populasi sebagian siswa dan siswi yang mengalami retardasi mental di SDLB Kabupaten Lamongan. Pengambilan data dilakukan pada bulan Februari sampai Maret 2018 dengan menggunakan alat ukur Observasi. Hasil uji statistik dengan menggunakan uji Wilcoxon pada Software SPSS (versi 16.0) didapatkan hasil Z = -3,542a dan p = 0,000 (p<0,05). Maka H0 ditolak dan H1 diterima, sehingga signifikasi dalam penelitian ini. Hasil penelitian menunjukkan bahwa pretest sebagian besar responden memiliki kognitif kurang sedangkan posttest hampir sebagian besar responden memiliki kognitif baik. Kata kunci: Retardasi Mental, Pretend Play, Kognitif
Introduction: Mental health is still one of the significant health problem in the world, includin... more Introduction: Mental health is still one of the significant health problem in the world, including in Indonesia. Approximately 90% of schizophrenic lives with family hence the role of caregiver in the family felt important. The growing burden and caregiver tasks can cause the incidence of psychological distress such as depression, stress and anxiety. Methods: Literature searches with the keyword do in some of the major databases such as Proquest, Scopus, and Google Scholar with the limitation of the time used is the journal from January 2011 until February 2018. Results: As many as thirteen research raised in this study, almost all of which state that the psychological burden felt by the caregiver are described with stress, depression and anxiety that is on moderate to high level. Conclusion: Caring for families with psychiatric raises the psychological problems on caregiver, this thing needs to get the handling to lower the psychological burden experienced by caregiver, with decreased psychological burden expected caregiver can take care of with a maximum.
Penelitian ini bertujuan untuk mengetahui pengaruh penambahan jamur tiram putih (Pleurotus ostrea... more Penelitian ini bertujuan untuk mengetahui pengaruh penambahan jamur tiram putih (Pleurotus ostreatus) terhadap kualitas dan nilai organoleptik abon daging burung puyuh afkir yang dimanifestasikan dengan kadar air, kadar protein, kadar lemak, rasa dan tekstur. Hasil penelitian ini diharapkan menjadi informasi baru bagi masyarakat tentang manfaat jamur tiram putih (Pleurotus ostreatus) dalam pembuatan abon daging burung puyuh afkir. Penelitian ini dilaksanakan di Laboratorium Teknologi Hasil Ternak menggunakan 4000 g daging burung puyuh afkir, serta menggunakan 600 g Jamur tiram putih (Pleurotus ostreatus). Bumbu yang digunakan dalam pembuatan abon adalah 1500 g santan kelapa kental, 300 g bawang merah, 180 g bawang putih, 120 g ketumbar, 4 g garam, 24 g merica, 180 g gula merah. Adapun bahan kimia yang digunakan adalah H2SO4 pekat, aquades, indikator Metil Merah, NaOH, benzene. Metode yang digunakan dalam penelitian ini metode experimen, menggunakan Rancangan Acak Kelompok (RAK) dengan 4 perlakuan dan 5 kelompok sebagai ulangan. Perlakuan tersebut adalah penambahan jamur tiram putih (pleurotus ostreatus) masing – masing : 0 % (A), 10 % (B), 20 % (C) dan 30 % (D). Dari hasil penelitian ini didapatkan bahwa penambahan jamur tiram putih sangat nyata (P<0.01) meningkatkan kadar air, nilai rasa dan menurunkan kadar protein, tetapi tidak mempengaruhi kadar lemak dan teksturnya. Penambahan jamur tiram putih sampai 30% (D) masih menghasilkan abon daging puyuh afkir yang baik. Kata kunci : Abon, Burung Puyuh Afkir, Jamur Tiram Putih, Kadar (Air, Protein, Lemak) dan Nilai Organoleptik.
ABSTRAK SITI NUR ASIYAH. Dosen Pembimbing Prof. Dr. H. Imam Fu’adi, M.Ag. Penerapan Metode Halaqa... more ABSTRAK SITI NUR ASIYAH. Dosen Pembimbing Prof. Dr. H. Imam Fu’adi, M.Ag. Penerapan Metode Halaqah dalam Kegiatan Pembelajaran Kitab Fhatul Qorib di Pondok Pesantren Darussalam Gedangan Campurdarat Tulungagung. Pendidikan Agama Islam, Tarbiyah dan Ilmu Keguruan, Institut Agama Islam Negeri Tulungagung. Kata Kunci: Penerapan, Metode Halaqah Penelitian ini dilatarbelakangi oleh fenomena bahwa metode pembelajaran di pondok pesantren memiliki ciri khas tersendiri yang membedakan dengan metode pembelajaran yang diterapkan di lembaga formal pada umumnya. Salah satunya adalah metode halaqah. Metode halaqah merupakan metode utama yang diterapkan dalam kegiatan pembelajaran di pondok pesantren. Meskipun metode halaqah merupakan metode yang terbilang cukup lama, akan tetapi masih diterapkan di berbagai pondok pesantren di Indonesia, salah satunya adalah Pondok Pesantren Darussalam Gedangan Campurdarat Tulungagung. Fokus penelitian dalam skripsi ini adalah (1) Bagaimana pelaksanaan metode halaqah dalam kegiatan pembelajaran Kitab Fhatul Qorib di pondok pesantren Darussalam Gedangan Campurdarat Tulungagung? (2) Apa saja kendala penerapan metode halaqah dalam kegiatan pembelajaran Kitab Fhatul Qorib di pondok pesantren Darussalam Gedangan Campurdarat Tulungagung? (3) Bagaimana cara mengatasi kendala penerapan metode halaqah dalam kegiatan pembelajaran Kitab Fhatul Qorib di pondok pesantren Darussalam Gedangan Campurdarat Tulungagung?. Pendekatan penelitian dalam skripsi ini adalah pendekatan kualitatif dengan jenis penelitian kualitatif deskriptif. Pengumpulan data melalui metode wawancara, observasi dan dokumentasi. Mengecek keabsahan data tersebut dilakukan melalui ketentuan pengamatan dan triangulasi. Hasil penelitian mengungkapkan: (1) Pelaksanaan metode halaqah yaitu tidak berdiri sendiri akan tetapi divariasikan dengan metode lain seperti; metode sorogan, ceramah, bacaan, dan tanya jawab, (2) Kendala dalam penerapan metode halaqah adalah santri bersikap pasif karena dalam kegiatan pembelajaran lebih didominasi oleh ustadz, ustadz kurang komunikatif sehingga santri sulit memahami materi dan cepat bosan, proses belajarnya berlangsung satu jalur (monolog), dan santri tidak bisa mengalokasikan waktu antara belajar dan kegiatan sehari-harinya, (3) Cara mengatasi kendala dalam penerapan metode halaqah adalah Ustadz harus sabar dan telaten, santri seharusnya dapat mengalokasikan waktu belajar dan kegiatan sehari-seharinya, santri berinisiatif mengejar ketinggalan pembelajaran dengan menembel kitab, serta ustadz dan santri menjalin komunikasi yang baik.
Background: Approximately 60% of papillary thyroid cancer (PTC) cases in Malaysia occur as a resu... more Background: Approximately 60% of papillary thyroid cancer (PTC) cases in Malaysia occur as a result of long-standing benign thyroid nodules. However, the underlying mechanisms that led to the malignant transformation are not understood. Methods & Results: Here, we report a study of benign and malignant thyroid tissues of a Malay woman presented with concurrent benign thyroid cyst and PTC. The same patient had only presented with neck swelling five years earlier. Whole-exome capture sequencing of extracted DNA from the PTC tissue revealed mutations of 1799 T>A (p.V600E) and c.353 G>A (p.R118Q) in the V-Raf Murine Sarcoma Viral Oncogene Homolog B (BRAF) and the Thyrotropin-Releasing Hormone (TRH) genes, respectively. When the benign cyst of the patient was subjected to direct PCR screening for both the mutations, only the c.353G>A mutation of the TRH gene was detected. Both the benign and malignant tissues also showed decrease or loss of expression of multiple iodide metaboli...
IOP Conference Series: Earth and Environmental Science, 2018
Elevator system is a highly specialized machinery that requires technicians that have a wider arr... more Elevator system is a highly specialized machinery that requires technicians that have a wider array of knowledge in maintaining the system to be safe and reliable. While attaining reliable data of elevator malfunction become challenges, this study has filled the gap by gathering the management-maintenance issues and operational defects of elevator system. Forty-three types of operation defects were found and the consequence defects and their possible causes of occurrences were discussed. To respond to the prime challenges of maintaining elevator system provided by the industry players' perspective, a theoretical framework is established as a recommendation to improve knowledge base of defects in elevator system which comprises good practices, and solutions to rectify each defects found. Hence, this research paper has theoretically improved the knowledge base of maintainability of elevator system and provide meaningful guidelines in practical senses to the industry professionals.
Industrial and Systems Engineering Assessment Journal, Oct 29, 2008
The inventory system is one of the most important managerial functions, since vast majority of co... more The inventory system is one of the most important managerial functions, since vast majority of companies has large investment involved in this aspect. This also applies to PT. Palko Sari Eka that is big in the field of inventory planning and production control. PT. Palko Sari Eka, as one company in the oil refinery industry, strives to optimize the inventory of raw materials Crude Coconut Oil by trying to compare different methods of inventory control methods such as the EOQ (Economic Order Quantity, method of EOI (Economic Order Interval), Min-Max method. Crude Coconut Oil is one of the major raw material products, which require a good inventory system. From the results of research conducted, it turns out the character of stochastic demand data, it is also necessary to conduct simulations to obtain results closer to the actual conditions. The inventory criteria can be said to be optimal if the total annual cost is minimum. It is concluded that the best method is the Fixed Size Order Systems (EOQ) with an order of 2770 mT per order.
Development of novel TiO2 nanostructures as the photo-electrode material is one possible solution... more Development of novel TiO2 nanostructures as the photo-electrode material is one possible solution to control the competition between electron generation and recombination which is the main constraint of obtaining higher conversion efficiency of dye solar cell (DSC). By manipulating the synthesis process, desired TiO2 nanostructure with specific properties can be obtained to enhance solar energy conversion efficiency. In this study, the effect of calcinations temperature towards physico-chemical properties of synthesized TiO2 aggregates and their influence on overall light conversion efficiency of DSC has been investigated. TiO2 aggregates (0.45 µm) composing of nanocrystallites (10-40 nm), were synthesized through hydrolysis of dilute titanium alkoxide in ethanol. The synthesized samples have been characterized using FESEM, XRD and UV-Vis spectroscopy. DSCs were then assembled and evaluated using solar simulator under 100 mW/cm2 illuminations. The size of nanocrystallites was found ...
Burkholderia pseudomallei, a Gram-negative saprophytic bacterium, is the causative agent of the p... more Burkholderia pseudomallei, a Gram-negative saprophytic bacterium, is the causative agent of the potentially fatal melioidosis disease in humans. In this study, environmental parameters including temperature, nutrient content, pH and the presence of glucose were shown to play a role in in vitro biofilm formation by 28 B. pseudomallei clinical isolates, including four isolates with large colony variants (LCVs) and small colony variants (SCVs) morphotypes. Enhanced biofilm formation was observed when the isolates were tested in LB medium, at 30uC, at pH 7.2, and in the presence of as little as 2 mM glucose respectively. It was also shown that all SVCs displayed significantly greater capacity to form biofilms than the corresponding LCVs when cultured in LB at 37uC. In addition, octanoyl-homoserine lactone (C 8-HSL), a quorum sensing molecule, was identified by mass spectrometry analysis in bacterial isolates referred to as LCV CTH, LCV VIT, SCV TOM, SCV CTH, 1 and 3, and the presence of other AHL's with higher masses; decanoyl-homoserine lactone (C 10-HSL) and dodecanoyl-homoserine lactone (C 12-HSL) were also found in all tested strain in this study. Last but not least, we had successfully acquired two Bacillus sp. soil isolates, termed KW and SA respectively, which possessed strong AHLs degradation activity. Biofilm formation of B. pseudomallei isolates was significantly decreased after treated with culture supernatants of KW and SA strains, demonstrating that AHLs may play a role in B. pseudomallei biofilm formation.
Streptococcus pneumoniae isolates causing invasive disease at a large tertiary institute in Singa... more Streptococcus pneumoniae isolates causing invasive disease at a large tertiary institute in Singapore from 2000 to 2007 were serotyped, with 84 (43.8 %) and 159 (82.8 %) isolates belonging to serotypes covered by the pneumococcal heptavalent conjugate and polysaccharide vaccines, respectively. All non-meningitis isolates were susceptible to penicillin, and the attributable mortality was 21.4 %. Patients who fulfilled the US Advisory Committee on Immunization Practices criteria for vaccination with the pneumococcal polysaccharide vaccine comprised 74.0 % of the study cohort and had a significantly higher mortality risk.
The background of this study is that an elderly person is 60 years or older. Someone who enters t... more The background of this study is that an elderly person is 60 years or older. Someone who enters the elderly will experience limitations where he will be more dependent on others, the process of making a living stalled and difficult to interact widely. So that some people assume that the elderly are better cared for in an orphanage, because they will be more cared for and able to get along with other elderly people than staying at home alone feeling lonely and abandoned because their children are busy with their work. Stress in the elderly can be influenced by their roommates who has a different culture or are jealous of their roommates who are often noticed by the management of the orphanage and rarely visited by family. The purpose of this study was to determine the description of stress levels in the elderly who live in the Nursing Home of Tresna Budi Pertiwi Bandung. The method used is descriptive design with 22 elderly population. Samples were taken by Total Sampling, while the ...
ABSTRAK Faridah, Siti Nur. 2018. Pengaruh Terapi Bermain Pretend Play Terhadap Perkembangan Kogni... more ABSTRAK Faridah, Siti Nur. 2018. Pengaruh Terapi Bermain Pretend Play Terhadap Perkembangan Kognitif Anak Retardasi Mental di SDLB Kabupaten Lamongan. Skripsi Program Studi S1 Keperawatan, STIKES Muhammadiyah Lamongan. Pembimbing: (1) Hj. Siti Sholikah., S. Kep., Ns., M.Kes. (2) Arifal Aris., S.Kep., Ns., M.Kes Retardasi mental merupakan suatu keadaan dimana perkembangan mental seseorang yang terhenti atau tidak lengkap atau bisa juga dikatakan tidak sesuai dengan tingkat perkembangan anak seusianya. Tujuan penelitian ini untuk mengetahui pengaruh terapi bermain pertend play terhadap perkembangan kognitif anak retardasi mental di SDLB Kabupaten Lamongan. Desain penelitian ini menggunakan desain penelitian ini adalah Quasy Experiment (eksperimen semu) dengan pendekatan Pre-Post Tes Control Design, dengan teknik purposive sampling. Populasi sebagian siswa dan siswi yang mengalami retardasi mental di SDLB Kabupaten Lamongan. Pengambilan data dilakukan pada bulan Februari sampai Maret 2018 dengan menggunakan alat ukur Observasi. Hasil uji statistik dengan menggunakan uji Wilcoxon pada Software SPSS (versi 16.0) didapatkan hasil Z = -3,542a dan p = 0,000 (p<0,05). Maka H0 ditolak dan H1 diterima, sehingga signifikasi dalam penelitian ini. Hasil penelitian menunjukkan bahwa pretest sebagian besar responden memiliki kognitif kurang sedangkan posttest hampir sebagian besar responden memiliki kognitif baik. Kata kunci: Retardasi Mental, Pretend Play, Kognitif
Introduction: Mental health is still one of the significant health problem in the world, includin... more Introduction: Mental health is still one of the significant health problem in the world, including in Indonesia. Approximately 90% of schizophrenic lives with family hence the role of caregiver in the family felt important. The growing burden and caregiver tasks can cause the incidence of psychological distress such as depression, stress and anxiety. Methods: Literature searches with the keyword do in some of the major databases such as Proquest, Scopus, and Google Scholar with the limitation of the time used is the journal from January 2011 until February 2018. Results: As many as thirteen research raised in this study, almost all of which state that the psychological burden felt by the caregiver are described with stress, depression and anxiety that is on moderate to high level. Conclusion: Caring for families with psychiatric raises the psychological problems on caregiver, this thing needs to get the handling to lower the psychological burden experienced by caregiver, with decreased psychological burden expected caregiver can take care of with a maximum.
Penelitian ini bertujuan untuk mengetahui pengaruh penambahan jamur tiram putih (Pleurotus ostrea... more Penelitian ini bertujuan untuk mengetahui pengaruh penambahan jamur tiram putih (Pleurotus ostreatus) terhadap kualitas dan nilai organoleptik abon daging burung puyuh afkir yang dimanifestasikan dengan kadar air, kadar protein, kadar lemak, rasa dan tekstur. Hasil penelitian ini diharapkan menjadi informasi baru bagi masyarakat tentang manfaat jamur tiram putih (Pleurotus ostreatus) dalam pembuatan abon daging burung puyuh afkir. Penelitian ini dilaksanakan di Laboratorium Teknologi Hasil Ternak menggunakan 4000 g daging burung puyuh afkir, serta menggunakan 600 g Jamur tiram putih (Pleurotus ostreatus). Bumbu yang digunakan dalam pembuatan abon adalah 1500 g santan kelapa kental, 300 g bawang merah, 180 g bawang putih, 120 g ketumbar, 4 g garam, 24 g merica, 180 g gula merah. Adapun bahan kimia yang digunakan adalah H2SO4 pekat, aquades, indikator Metil Merah, NaOH, benzene. Metode yang digunakan dalam penelitian ini metode experimen, menggunakan Rancangan Acak Kelompok (RAK) dengan 4 perlakuan dan 5 kelompok sebagai ulangan. Perlakuan tersebut adalah penambahan jamur tiram putih (pleurotus ostreatus) masing – masing : 0 % (A), 10 % (B), 20 % (C) dan 30 % (D). Dari hasil penelitian ini didapatkan bahwa penambahan jamur tiram putih sangat nyata (P<0.01) meningkatkan kadar air, nilai rasa dan menurunkan kadar protein, tetapi tidak mempengaruhi kadar lemak dan teksturnya. Penambahan jamur tiram putih sampai 30% (D) masih menghasilkan abon daging puyuh afkir yang baik. Kata kunci : Abon, Burung Puyuh Afkir, Jamur Tiram Putih, Kadar (Air, Protein, Lemak) dan Nilai Organoleptik.
ABSTRAK SITI NUR ASIYAH. Dosen Pembimbing Prof. Dr. H. Imam Fu’adi, M.Ag. Penerapan Metode Halaqa... more ABSTRAK SITI NUR ASIYAH. Dosen Pembimbing Prof. Dr. H. Imam Fu’adi, M.Ag. Penerapan Metode Halaqah dalam Kegiatan Pembelajaran Kitab Fhatul Qorib di Pondok Pesantren Darussalam Gedangan Campurdarat Tulungagung. Pendidikan Agama Islam, Tarbiyah dan Ilmu Keguruan, Institut Agama Islam Negeri Tulungagung. Kata Kunci: Penerapan, Metode Halaqah Penelitian ini dilatarbelakangi oleh fenomena bahwa metode pembelajaran di pondok pesantren memiliki ciri khas tersendiri yang membedakan dengan metode pembelajaran yang diterapkan di lembaga formal pada umumnya. Salah satunya adalah metode halaqah. Metode halaqah merupakan metode utama yang diterapkan dalam kegiatan pembelajaran di pondok pesantren. Meskipun metode halaqah merupakan metode yang terbilang cukup lama, akan tetapi masih diterapkan di berbagai pondok pesantren di Indonesia, salah satunya adalah Pondok Pesantren Darussalam Gedangan Campurdarat Tulungagung. Fokus penelitian dalam skripsi ini adalah (1) Bagaimana pelaksanaan metode halaqah dalam kegiatan pembelajaran Kitab Fhatul Qorib di pondok pesantren Darussalam Gedangan Campurdarat Tulungagung? (2) Apa saja kendala penerapan metode halaqah dalam kegiatan pembelajaran Kitab Fhatul Qorib di pondok pesantren Darussalam Gedangan Campurdarat Tulungagung? (3) Bagaimana cara mengatasi kendala penerapan metode halaqah dalam kegiatan pembelajaran Kitab Fhatul Qorib di pondok pesantren Darussalam Gedangan Campurdarat Tulungagung?. Pendekatan penelitian dalam skripsi ini adalah pendekatan kualitatif dengan jenis penelitian kualitatif deskriptif. Pengumpulan data melalui metode wawancara, observasi dan dokumentasi. Mengecek keabsahan data tersebut dilakukan melalui ketentuan pengamatan dan triangulasi. Hasil penelitian mengungkapkan: (1) Pelaksanaan metode halaqah yaitu tidak berdiri sendiri akan tetapi divariasikan dengan metode lain seperti; metode sorogan, ceramah, bacaan, dan tanya jawab, (2) Kendala dalam penerapan metode halaqah adalah santri bersikap pasif karena dalam kegiatan pembelajaran lebih didominasi oleh ustadz, ustadz kurang komunikatif sehingga santri sulit memahami materi dan cepat bosan, proses belajarnya berlangsung satu jalur (monolog), dan santri tidak bisa mengalokasikan waktu antara belajar dan kegiatan sehari-harinya, (3) Cara mengatasi kendala dalam penerapan metode halaqah adalah Ustadz harus sabar dan telaten, santri seharusnya dapat mengalokasikan waktu belajar dan kegiatan sehari-seharinya, santri berinisiatif mengejar ketinggalan pembelajaran dengan menembel kitab, serta ustadz dan santri menjalin komunikasi yang baik.
Background: Approximately 60% of papillary thyroid cancer (PTC) cases in Malaysia occur as a resu... more Background: Approximately 60% of papillary thyroid cancer (PTC) cases in Malaysia occur as a result of long-standing benign thyroid nodules. However, the underlying mechanisms that led to the malignant transformation are not understood. Methods & Results: Here, we report a study of benign and malignant thyroid tissues of a Malay woman presented with concurrent benign thyroid cyst and PTC. The same patient had only presented with neck swelling five years earlier. Whole-exome capture sequencing of extracted DNA from the PTC tissue revealed mutations of 1799 T>A (p.V600E) and c.353 G>A (p.R118Q) in the V-Raf Murine Sarcoma Viral Oncogene Homolog B (BRAF) and the Thyrotropin-Releasing Hormone (TRH) genes, respectively. When the benign cyst of the patient was subjected to direct PCR screening for both the mutations, only the c.353G>A mutation of the TRH gene was detected. Both the benign and malignant tissues also showed decrease or loss of expression of multiple iodide metaboli...
IOP Conference Series: Earth and Environmental Science, 2018
Elevator system is a highly specialized machinery that requires technicians that have a wider arr... more Elevator system is a highly specialized machinery that requires technicians that have a wider array of knowledge in maintaining the system to be safe and reliable. While attaining reliable data of elevator malfunction become challenges, this study has filled the gap by gathering the management-maintenance issues and operational defects of elevator system. Forty-three types of operation defects were found and the consequence defects and their possible causes of occurrences were discussed. To respond to the prime challenges of maintaining elevator system provided by the industry players' perspective, a theoretical framework is established as a recommendation to improve knowledge base of defects in elevator system which comprises good practices, and solutions to rectify each defects found. Hence, this research paper has theoretically improved the knowledge base of maintainability of elevator system and provide meaningful guidelines in practical senses to the industry professionals.
Industrial and Systems Engineering Assessment Journal, Oct 29, 2008
The inventory system is one of the most important managerial functions, since vast majority of co... more The inventory system is one of the most important managerial functions, since vast majority of companies has large investment involved in this aspect. This also applies to PT. Palko Sari Eka that is big in the field of inventory planning and production control. PT. Palko Sari Eka, as one company in the oil refinery industry, strives to optimize the inventory of raw materials Crude Coconut Oil by trying to compare different methods of inventory control methods such as the EOQ (Economic Order Quantity, method of EOI (Economic Order Interval), Min-Max method. Crude Coconut Oil is one of the major raw material products, which require a good inventory system. From the results of research conducted, it turns out the character of stochastic demand data, it is also necessary to conduct simulations to obtain results closer to the actual conditions. The inventory criteria can be said to be optimal if the total annual cost is minimum. It is concluded that the best method is the Fixed Size Order Systems (EOQ) with an order of 2770 mT per order.
Development of novel TiO2 nanostructures as the photo-electrode material is one possible solution... more Development of novel TiO2 nanostructures as the photo-electrode material is one possible solution to control the competition between electron generation and recombination which is the main constraint of obtaining higher conversion efficiency of dye solar cell (DSC). By manipulating the synthesis process, desired TiO2 nanostructure with specific properties can be obtained to enhance solar energy conversion efficiency. In this study, the effect of calcinations temperature towards physico-chemical properties of synthesized TiO2 aggregates and their influence on overall light conversion efficiency of DSC has been investigated. TiO2 aggregates (0.45 µm) composing of nanocrystallites (10-40 nm), were synthesized through hydrolysis of dilute titanium alkoxide in ethanol. The synthesized samples have been characterized using FESEM, XRD and UV-Vis spectroscopy. DSCs were then assembled and evaluated using solar simulator under 100 mW/cm2 illuminations. The size of nanocrystallites was found ...
Burkholderia pseudomallei, a Gram-negative saprophytic bacterium, is the causative agent of the p... more Burkholderia pseudomallei, a Gram-negative saprophytic bacterium, is the causative agent of the potentially fatal melioidosis disease in humans. In this study, environmental parameters including temperature, nutrient content, pH and the presence of glucose were shown to play a role in in vitro biofilm formation by 28 B. pseudomallei clinical isolates, including four isolates with large colony variants (LCVs) and small colony variants (SCVs) morphotypes. Enhanced biofilm formation was observed when the isolates were tested in LB medium, at 30uC, at pH 7.2, and in the presence of as little as 2 mM glucose respectively. It was also shown that all SVCs displayed significantly greater capacity to form biofilms than the corresponding LCVs when cultured in LB at 37uC. In addition, octanoyl-homoserine lactone (C 8-HSL), a quorum sensing molecule, was identified by mass spectrometry analysis in bacterial isolates referred to as LCV CTH, LCV VIT, SCV TOM, SCV CTH, 1 and 3, and the presence of other AHL's with higher masses; decanoyl-homoserine lactone (C 10-HSL) and dodecanoyl-homoserine lactone (C 12-HSL) were also found in all tested strain in this study. Last but not least, we had successfully acquired two Bacillus sp. soil isolates, termed KW and SA respectively, which possessed strong AHLs degradation activity. Biofilm formation of B. pseudomallei isolates was significantly decreased after treated with culture supernatants of KW and SA strains, demonstrating that AHLs may play a role in B. pseudomallei biofilm formation.
Streptococcus pneumoniae isolates causing invasive disease at a large tertiary institute in Singa... more Streptococcus pneumoniae isolates causing invasive disease at a large tertiary institute in Singapore from 2000 to 2007 were serotyped, with 84 (43.8 %) and 159 (82.8 %) isolates belonging to serotypes covered by the pneumococcal heptavalent conjugate and polysaccharide vaccines, respectively. All non-meningitis isolates were susceptible to penicillin, and the attributable mortality was 21.4 %. Patients who fulfilled the US Advisory Committee on Immunization Practices criteria for vaccination with the pneumococcal polysaccharide vaccine comprised 74.0 % of the study cohort and had a significantly higher mortality risk.
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