1,483 research outputs found
Dampak alih fungsi lahan situ kuru terhadap lingkungan di Kelurahan Cempaka Putih Kecamatan Ciputat Timur
No full textTujuan penelitian ini adalah untuk mengetahui dampak alih fungsi lahan Situ Kuru terhadap lingkungan. Lingkungan disini terbagi menjadi 2 yaitu lingkungan fisik dan lingkungan sosial di sekitar Situ Kuru. Penelitian ini dilaksanakan di daerah Situ Kuru tepat disamping kampus UIN Syarif Hidayatullah Jakarta, yang berada pada kawasan RW 03 Kelurahan Cempaka Putih Kecamatan Ciputat Timur. Metode yang digunakan dalam penelitian ini adalah metode survey, dengan pendekatan kuantitatif deskriptif. metode survey digunakan sebagai upaya untuk mengetahui bagaimana dampak yang terjadi setelah alih fungsi lahan Situ Kuru. Dampak ini dibagi menjadi 2, yaitu dampak fisik dan dampak sosial. Hasil penelitian ini menunjukan bahwa telah terjadi pelanggaran terhadap Situ Kuru, seharusnya dalam jarak 50 m dari bibir Situ Kuru tidak didirikan bangunan. Tetapi faktanya terdapat berbagai macam bangunan di daerah Situ Kuru. Dan dari hasil penelitian ini didapatkan bahwa dampak fisik yang terjadi terhadap Situ Kuru, yaitu tata ruang Situ Kuru, kondisi fisik, kualitas air, keindahan Situ Kuru dan sekitarnya. Selain itu juga ada beberapa dampak yang terjadi, seperti peningkatan daerah banjir, penyempitan lahan Situ Kuru, Vegetasi (Flora dan Fauna) dan pencemaran. Selain dampak fisik, berakibat pula terhadap dampak sosial yang terjadi, yaitu ciri pemukiman didaerah Situ Kuru, kondisi penduduk di daerah Situ Kuru, pola lapangan kerja, perhatian terhadap lingkungan, dan kesehatan. Selain dampak-dampak negatif yang terjadi, ada beberapa dampak positif dari alih fungsi lahan Situ Kuru, yaitu terhadap pengembangan lapangan kerja, terhadap tingkat pengangguran
Kuru ve sulu soğutmanın karşılaştırması: Bir termal güneş santralinde uygulamalı bir çalışma
No full textThe present study evaluates the use of air cooled heat exchangers for an organic
Rankine cycle (ORC) as part of a solar thermal power system that can produce
10-30 kWe. Overall thermal efficiency of the system under investigation relies
heavily on (i) available solar thermal energy, (ii) performance of the cooling
system, and (iii) power consumption due to pumps and fans within the system.
For locations with good solar potential but limited water resources, it is crucial to
evaluate wet cooling towers to avoid or reduce water consumption. Performance
of dry cooling alternatives is limited by the dry bulb temperature rather than the
wet bulb temperature, requiring more fan power to achieve the same cooling
capacity. In this study, assessment of wet and dry cooling units is performed by
integrating them into a small scale power plant model that uses environmental
conditions (i.e. solar irradiation, ambient dry and wet bulb temperatures) as the
inputs. Critical parameters include net produced power and operational costs for
both wet and dry cooling units through a representative year using conditions at
northern Cyprus. It is found that dry cooling unit is capable of saving water
about 17 ton/MWh while it produces 6% less per annum compared to the wet
cooling alternative for the representative annual weather data. Overall, dry
cooling is shown to be a good solution for low altitude-humid regions, where
thermal performance appears to be comparable to wet cooling while significant
savings in water consumption is achieved.Bu çalışmada, 10-30 kW kapasiteli termal güneş enerjisi ile çalışan bir organik
Rankine çevriminin (ORC) kuru soğutma sistemleri ile uygulanabilirliği
incelenmektedir. Bu tip elektrik santrallerinin enerji verimi temel olarak; (i)
güneş enerjisi yoğunluğu, (ii) soğutma sisteminin performansı ve (iii) pompa ve
fanların tükettiği güç bileşenleri ile belirlenmektedir. Güneş kaynaklı enerji
üretim potansiyeli yüksek olan fakat su kaynaklarının sınırlı olduğu bölgelerde, su
tüketimini elimine etmek veya azaltmak adına ıslak ve kuru soğutma kulelerinin
kullanımının değerlendirilmesi, sürdürülebilir enerji üretimi için gereklidir. Bu
çalışmada, ıslak ve kuru soğutma birimleri için geliştirilen sayısal modeller ile
küçük ölçekli bir enerji santrali modeli birleştirilerek, değişen çevre koşullarına
göre (ışınım, kuru ve ıslak termometre sıcaklıkları) soğutma sistemlerinin Güneş
enerjisi potansiyeli yüksek olan Kıbrıs için uygulanabilirliğini incelemektedir.
Kıbrıs’ın kuzeyinde bulunan bir bölge için temsili yıl süresince değişen hava
koşulları göz önüne alınmış ve üretilen net güç ve işletme maliyeti
hesaplanmıştır. Temsili yılın hava şartları için, kuru soğutma ünitesinin, ıslak
soğutma ünitesine kıyasla yıllık %6 daha az güç üretirken, 17 ton/MWh sudan
tasarruf edebileceği bulunmuştur. Sonuç olarak, kuru soğutma ünitelerinin alçak
rakıma sahip nemli bölgeler için iyi bir çözüm olduğu gösterilmiş ve kuru
soğutma sistemleri ıslak soğutma sistemlerinin yerine kullanıldığında güç
üretiminden çok kaybetmeden, su tüketiminden yüksek kazanç sağlamanın
mümkün olduğu bulunmuştur.M.S. - Master of Scienc
Bifidobacterium animalis subsp. lactis as adjunct to non-surgical periodontal treatment in periodontitis: a randomized controlled clinical trial
No full text© 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.Objectives: The purpose of this study is to investigate the clinical and microbiological effects of Bifidobacterium animalis subsp. lactis DN-173010 containing yogurt as an adjunct to non-surgical periodontal treatment in periodontitis patients. Materials and methods: This is a prospective randomized controlled clinical study registered with NCT05408364 under clinical trial registration. Thirty periodontitis patients were divided into 2 groups at random. As adjunctive to supra and subgingival instrumentation, the test group consumed Bifidobacterium animalis subsp. lactis DN-173010 containing yogurt while the control group consumed natural yogurt, once daily for 28 days. The plaque index (PI), gingival index (GI), bleeding on probing (BOP), probing depth (PD), and clinical attachment level (CAL) were recorded at baseline, 28th day, and 3rd month. Microbiological analysis was performed using culture method by obtaining subgingival plaque samples from 2 periodontal sites with 4≤PD≤6 mm at the same time points. Results: The inter-group comparisons of PI, GI, and BOP as well as the changes between the measurement time points were statistically significant in favor of the test group. There were no significant differences in terms of PD and CAL changes between the study groups at all times (∆baseline–28 days, ∆baseline–3 months) (p>0.05). The number of patients presenting subgingival Bifidobacterium species was significantly greater in the test group than the control group at the 28th day (p<0.05). Conclusions: The administration of probiotics has shown beneficial effects, albeit limited, on clinical and microbiological outcomes in the management of periodontitis patients. Clinical relevance: Daily consumption of probiotic yogurt may be supportive for supra and subgingival instrumentation
Struktur Komunitas Makrozoobentos di Situ Gintung, Situ Bungur Dan Situ Kuru, Ciputat Timur
No full textMakrozoobentos adalah biota yang hidup di dalam substrat maupun menempel di permukaan dasar perairan. Makrozoobentos memiliki peran penting dalam eksositem akuatik, yaitu sebagai sumber makanan biota perairan dan sebagai detritus. Tujuan penelitian ini adalah untuk mengetahui keanekaragaman makrozoobentos di Situ Gintung, Situ Bungur dan Situ Kuru. Titik pengambilan sampel terdiri dari 5 stasiun dengan masing-masing 3 ulangan. Faktor fisik kimia makrozoobentos diuji dengan t-test. Hasil t-test menunjukkan di Situ Gintung dan Situ Bungur hanya nilai pH yang berbeda (p<0,01), sedangkan Situ Kuru memiliki kondisi fisik kimia yang berbeda dengan Situ Gintung dan Situ Bungur (p<0,01). Makrozoobentos yang ditemukan di ketiga lokasi pengamatan seluruhnya terdiri dari 10 famili dan 16 jenis. Makrozoobentos dari jenis P. canaliculata terlihat mendominasi pada lokasi Situ Gintung. Sedangkan pada lokasi Situ Kuru jenis T. tubifex ditemukan lebih mendominasi. Nilai indeks keanekaragaman (H’) di Situ Gintung (1,74) dan Situ Bungur (2,29) yang tergolong sedang, mengindikasikan kedua perairan tercemar sedang. Sedangkan nilai indeks keanekaragaman Situ Kuru (0,92) yang rendah, mengindikasikan perairan tersebut tercemar berat.Kata kunci : keanekaragaman, makrozoobentos, Situ Gintung, Situ Bungur, Situ Kuru</jats:p
Komunitas Makrozoobentos di Situ Gintung, Situ Bungur dan Situ Kuru, Ciputat Timur
No full textMakrozoobentos merupakan biota yang hidup di dalam substrat maupun menempel di permukaan dasar perairan. Makrozoobentos memiliki peran penting dalam eksositem akuatik, yaitu sebagai sumber makanan biota perairan dan sebagai detritus. Masuknya limbah antropogenik ke suatu badan perairan dapat menyebabkan bergesernya tingkat trofik perairan dan mempengaruhi komunitas makrozoobentos. Tujuan penelitian ini adalah untuk mengetahui keanekaragaman makrozoobentos di Situ Gintung, Situ Bungur dan Situ Kuru, serta mengetahui hubungan antara nilai produktivitas primer perairan dengan keragaman jenis makrozoobentos. Penelitian ini menggunakan metode survey dengan purposive sampling method. Titik sampling terdiri dari 5 stasiun dengan 3 ulangan. Analisis faktor fisik kimia, produktivitas primer dan hubungan faktor lingkungan dengan makrozoobentos diuji dengan t-test, korelasi Pearson, dan CCA. Hasil penelitian menunjukkan makrozoobentos yang ditemukan di ketiga situ tersebut terdiri dari 4 kelas, 10 famili dan 16 jenis dengan nilai indeks keanekaragaman (H?) di Situ Gintung (1,74) dan Situ Bungur (2,29) tergolong sedang, sedangkan Situ Kuru (0,92) tergolong kecil. Hasil t-test menunjukkan di Situ Gintung dan Situ Bungur hanya nilai pH yang berbeda (p<0,01), sedangkan Situ Kuru memiliki kondisi fisik kimia yang berbeda dengan Situ Gintung dan Situ Bungur (p<0,01). Hubungan antara produktivitas primer perairan dengan keragaman jenis makrozoobentos memiliki nilai yang tergolong kuat (0,517). Variabel lingkungan yang paling mempengaruhi kehadiran makrozoobentos adalah kecerahan (p<0,05)
The reliability of the augmented Lehnert-Schroth and Rigo classification in scoliosis management
No full textBackground: In pattern-specific scoliosis exercises and bracing, the corrective treatment plan differs according to different curve patterns. There are a limited number of studies investigating the reliability of the commonly used classifications systems. Objective: To test the reliability of the augmented Lehnert-Schroth (ALS) classification and the Rigo classification. Methods: X-rays and posterior photographs of 45 patients with scoliosis were sent by the first author to three clinicians twice at 1-week intervals. The clinicians classified images according to the ALS and Rigo classifications, and the data were analysed using SPSS V-16. Intraclass correlation coefficients (ICCs) and standard error measurement (SEM) were calculated to evaluate the inter-and intra-observer reliability. Results: The inter-observer ICC values were 0.552 (ALS), 0.452 (Rigo) for X-ray images and 0.494 (ALS), 0.518 (Rigo) for the photographs. The average intra-observer ICC value was 0.720 (ALS), 0.581 (Rigo) for the X-ray images and 0.726 (ALS) and 0.467 (Rigo) for the photographs. Conclusions: The results of our study indicate moderate inter-observer reliability for X-ray images using the ALS classification and clinical photographs using the Rigo classification. Intra-observer reliability was moderate to good for X-ray images and clinical photographs using the ALS classification and poor to moderate for X-ray and clinical photographs using the Rigo classification
Türkiye Örneğinde Döviz Kuru Değişimlerinin İhracat Fiyatları ile Yurt İçi Fiyatlara Yansıması: Bir Literatür Taraması
No full textNazlı Karamollaoğlu (MEF Author)Gelişmekte olan ülkelerde döviz kuru hareketlerinin ihracat ve ithalat fiyatlarına önemli etkileri söz konusudur. Döviz kurundaki değişimler ithalat fiyatları ve talep kanalıyla üretici ve tüketici fiyatlarını etkilemekte, ihracat fiyatı kanalıyla da ihracatçı firmaların rekabet güçlerini, satışlarını ve diğer performans ölçütlerini etkileyebilmektedir. Bu çalışmada Türkiye kapsamında yurt içi (üretici ve tüketici) fiyatlara döviz kuru yansımasını ve piyasaya göre fiyatlandırma davranışını konu alan ampirik çalışmaların özetlenmesi amaçlanmaktadır. Çalışma literatürde rapor edilen başlıca bulguları özetleyerek konu ile ilgilenen araştırmacılara elde edilen sonuçların karşılaştırılabilmesi konusunda faydalı olmayı hedeflemiştir
Handling von Asthma bei Schülern der 7. Klasse im Kreis Aachen : eine Betrachtung unter Genderaspekten
No full textWith a prevalence of about 10% asthma is the most common chronic disease of the respiratory system. Resent studies underlined the influence of social status and lifestyle on the morbidity of asthma. The following study was conducted to investigate the handling of 7th year high school students with asthma in the area of Aachen. The investigated group of patients included 7th year high school students from all kind of educational levels („Gymnasien“, „Realschulen“, „Hauptschulen“ and „Gesamtschulen“). The investigation was conducted between November 2006 and August 2007, during which the patient’s data was collected by means of a written questionnaire. The following parameters with a potential influence on the course of the disease were determined for each patient and analysed:Asthma-specific anamnesis:• Occurrence of typical pathological respiratory sounds (rhonchus and grumble) within the last 12 months• Occurrence of dyspnea or chest pain within the last 12 months• Diagnosis of asthma made by a physician as opposed to typical asthma symptoms without the diagnosis of asthma by a physician• Current medical treatment• Measures of prevention taken by the patient• Self-assessment of general wellbeingSocial background and lifestyle:• Work of the parents• School education of the mother• Nationality of the patient and its parent• Nicotin consumption of the patient• Regular sport activity performed by the patientIn the interpretation of the obtained data special interest was put on gender-specific aspects. For statistical analysis the SAS Software was used. In order to insure the perception of the questionnaire it was tested in a small group of students and questions were modified for better understanding. 1950 questionnaires could be evaluated. This equals a response rate of 75,6%. 609 (31,82%) of the participants claimed to have asthmatic symptoms with equal rates in boys and girls. 178 (9,62%) of the student informed to have been diagnosed with asthma by a physician and 247 (13,15%) underwent medical treatment (some of which had not been diagnosed by a physician). In both of these groups boys formed the majority with 110 (61,8%) and 149 (60,32%) students respectively. In contrast to this data the percentage of girls claiming asthmatic symptoms without a diagnosis of asthma made by a physician was higher. The self-assessed general wellbeing was worse amongst girls as opposed to boys. A difference between students with a background of migration and students without a background of migration was statistically not significant. Boys were more commonly participated in prevention programmes as well as sport activities. 8% of the participants were smokers, with a majority of which were girls even though that difference did not prove to be significant (p=0,0895). The results of this study showed that the general wellbeing is highly influenced by gender aspects. The high rate of smokers amongst girls as well as lower rate of participation in sport activity and prevention programs makes girls vulnurable for asthmatic symptoms. Prevention programs should there for take focus on life style modifications of girl and gender-specific education
Preference to co-author with other researchers based on socio-academic parameters.
No full textPreference to co-author with other researchers based on socio-academic parameters.</p
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