561 research outputs found
Gli insediamenti epigravettiani e la frequentazione mesolitica attorno al Palughetto sull’Altopiano del Cansiglio (Prealpi Venete).
No full textIl bacino lacustre e torboso, di origine glaciale del Palughetto sull’Altopiano del Cansiglio, conserva siti riferibili alla fine dell’Epigravettiano recente (Palughetto MN e Palughetto MO) e al Sauveterriano (Palughetto UST6). Tali evidenze vengono descritte nel loro contesto geomorfologico, paleoecologico e pedologico ed interpretate sulla base di uno studio tecnologico in senso largo degli insiemi litici che prende in considerazione anche le modalità di approvvigionamento delle materie prime, individuando diversi contesti alloctoni. L’identificazione degli obiettivi tecnici e delle modalità operative nella produzione litica offrono rari elementi di valutazione per questa facies culturale, peraltro qui arricchita da un nucleo graffito con motivi geometrico-lineari. La produzione si inquadra in un unico progetto lamino-lamellare incentrato su una sola gamma di lamelle poco normalizzate, a cui si affiancano poche lame. I gradi di sfruttamento sono diversi a seconda dello schema operativo applicato. Per Palughetto MN la distribuzione spaziale dei manufatti configura un mosaico di strutture latenti simili tra loro in qualche caso, complementari in altri, con parziale contemporaneità suggerita da rimontaggi. Dopo avere presentato un ampio confronto regionale con i siti della medesima facies culturale, lo studio termina illustrando i manufatti mesolitici e la riserva di selci rinvenuti nell’unità T6, nel settore marginale della torbiera
I campi epigravettiani del Palughetto.
No full textGli scavi e le ricerche effettuate nell’area del Palughetto hanno attestato la presenza di non meno di due insediamenti ascrivibili alla fine dell’Epigravettiano e di un terzo insediamento datato al Mesolitico antico. I primi due si collocano sui cordoni morenici circostanti il bacino lacustre, mentre le tracce del terzo insediamento, associate alla nota riserva di selci, sono conservate in un paleosuolo intercalato nella successione sedimentaria del bacino.
I due siti epigravettiani si accomunano per il profondo impoverimento di testimonianze archeologiche causato da interventi recenti e dall’esposizione agli agenti pedologici, dalla quale sono stati risparmiati i soli manufatti in selce. Per quanto riguarda il sito principale indagato in estensione nel 1993-94, i dati della distribuzione spaziale rivelano come l’occupazione insisteva su un’ampia area alla sommità del rilievo, con distribuzioni spaziali differenziate sia in rapporto assoluto sia in rapporto alle principali categorie di reperti (prodotti della scheggiatura, nuclei, strumenti ritoccati, armature, manufatti alterati dal calore). Viene suggerita l’esistenza di aree ad attività artigianali diversificate (scheggiatura, lavorazione delle pelli) e di piccole unità domestiche di circa 3m di diametro, ciascuna dotata di focolare, marcate da dispersioni periferiche di alcune categorie di reperti (nuclei, strumenti ritoccati). Le loro caratteristiche appaiono in sintonia con quelle dei moduli pertinenti al successivo Mesolitico.
Nel quadro delle attività artigianali, è stata presa in considerazione la produzione litica, che per entrambi i siti risulta congruente con l’evoluzione tecnologica della fase recente del Paleolitico superiore (17-11.000 anni dal presente), nel corso della quale si assiste alla progressiva semplificazione del sistema di produzione con riduzione degli obiettivi tecnici a poche lame e principalmente a lamelle. Sono stati inoltre valutati, grazie alle osservazioni petroarcheologiche e tipologiche, aspetti di carattere economico che suggeriscono approvvigionamenti di risorse locali ma soprattutto esogene, e di carattere culturale riscontrati nella tipologia degli strumenti ritoccati e delle armature che trova confronti con i siti del Piancavallo
Miftahul Huda, Ratna Susandarini, Inggit Puji Astuti
No full textSARI, R., HUDA, M., SUSANDARINI, R. & ASTUTI, I. P. 2019. Rafflesia hasseltii Suringar (Rafflesiaceae): A new record to Kalimantan, Indonesia. Reinwardtia 18(2): 65?70. ?? Rafflesia hasseltii Suringar flower has been observed for the first time in Sambas District, West Kalimantan by the Flora Fauna Research Team during the Khatulistiwa Expedition organized by Special Forces Command of Indonesian Army in 2012. This finding is the first record of Rafflesia hasseltii in Kalimantan following the previous record in Sarawak. The flower has 5?6 perigone lobes. This paper presents the detail characteristic of the flower
Effect of IAA and GA3 toward the growing and saponin content of purwaceng (Pimpinella alpina)
No full textAbstract. Fathonah D, Sugiyarto. 2009. Effect of IAA and GA3 toward the growing and saponin content of purwaceng (Pimpinella
alpina). Nusantara Bioscience 1: 17-22. The aims of this research are to examine (i) the effect of IAA and GA3 in different
concentrations to the growth of the plants and (ii) the saponin contained inside the P. alpina, leaves. The research was done in Sikunang
Village, Kejajar Subdistrict, Wonosobo District, Central Java from July to November 2007. The experiment methods were used the
Completely Random Design with two factors were used to analyze this experiment. First treatment gives IAA and GA3, second was done
by giving different IAA and GA3 concentration. These experiments were repeated three times. Variables measured in this research were
the growth of plant which is consisted of the number of leaves, their height, width, wet weight as well as dry weight. The chemical
compound of the secondary metabolite in the form of leave saponin was employed. The result was analyzed by Analysis of Variance
(ANOVA), then continued to Duncan Multiple Range Test in 5% level to analyze the real difference between those treatments. The
result showed that giving IAA and GA3 differently affect the growth P. alpina. In variable of the height, the optimal wet weight and dry
weight of the plant in GA3 treatment was 50 ppm; optimum number of leaves in GA3 treatment was 50 ppm where as the leave width in
IAA treatment was 200 ppm and GA3 treatment was 75 ppm and optimum saponin treatment was IAA 200 ppm and GA3 25 ppm.
Key words: Pimpinella alpina, IAA, GA, growth, saponin, Dieng
New species of bamboos (Poaceae-Bambusoideae) from Bali
No full textWIDJAJA, E.A., ASTUTI, I. P., ARINASA, I. B. K. 2004. New species of bamboos (Poaceae-Bambusoideae) from Bali. Reinwardtia 12(2):199 - 204. Five new species of bamboos from Bali are described: Bambusa ooh, Dinochloa sepang, Gigantochloa aya, Gigantochloa baliana and Gigantochloa taluh in the context of a proposal field guide to Balinese bamboos. Description including the distribution and the vernacular names are provided
EFEKTIVITAS AROMATERAPI LAVENDER DAN JASMINE TERHADAP PENURUNAN NYERI KALA I FASE AKTIF, LAMA PERSALINAN KALA II, DAN FETAL OUTCOME
No full textYunita Laila Astuti. R1115093. 2016. Efektivitas Aromaterapi Lavender dan Jasmine terhadap Penurunan Nyeri Kala I Fase Aktif, Lama Persalinan Kala II, dan Fetal Outcome. Program Studi DIV Bidan Pendidik Fakultas Kedokteran Surakarta. Latar Belakang: Peningkatan nyeri persalinan dihubungkan dengan kecemasan berlebihan karena tegangan otot meningkat sehingga menyebabkan efektivitas kontraksi uterus berkurang, bahkan memperpanjang proses persalinan kala dua dan berpengaruh pada kondisi bayi. Aromaterapi digunakan untuk mengurangi nyeri persalinan, memperpendek kala II dan memperbaiki fetal outcome. Metode: Penelitian quasy-experiment dengan pretest-posttest with control group design pada 30 ibu bersalin primipara/multipara 20-35 tahun di Bidan Praktik Mandiri (BPM) Siyamtiningsih Karanganyar yang diberikan asuhan kebidanan sesuai standar dengan deep breathing, dibagi menjadi tiga kelompok: aromaterapi lavender, jasmine, dan tanpa aromaterapi. Instrumen pengumpulan data menggunakan Verbal Descriptor Scale (VDS) dan partograf. Analisis data menggunakan Wilcoxon dan Kruskal Wallis. Hasil: Uji Wilcoxon nyeri pretest dan posttest menunjukkan perbedaan signifikan pada kelompok aromaterapi lavender, jasmine, dan tanpa aromaterapi berturut-turut memiliki p-value 0.004, 0.004, dan 0.013. Uji Kruskal Wallis nyeri posttest, lama persalinan kala II dan fetal outcome berturut-turut memiliki p-value 0.565, 0.719, dan 0.309 sehingga tidak ada perbedaan signifikan. Simpulan: Aromaterapi lavender, jasmine, dan tanpa aromaterapi memiliki efektivitas yang sama terhadap nyeri kala I fase aktif, lama kala II, dan fetal outcome. Kata Kunci: lavender, jasmine, nyeri, lama kala II, fetal outcome
Pengaruh Jus Lidah Buaya (Aloe vera)Terhadap Kadar Glukosa Darah Dan Mlaondialdehid (MDA) Pada Tikus Wistar Diabetes Yang diinduksi Aloksan
No full textABSTRAK Rini Astuti. S531308014. 2015. PENGARUH JUS LIDAH BUAYA (Aloe vera) TERHADAP KADAR GLUKOSA DARAH DAN MALONDIALDEHID (MDA) PADA TIKUS WISTAR DIABETES YANG DIINDUKSI ALOKSAN. Pembimbing I : Sugiarto. Pembimbing II : Tonang Dwi Ardyanto. Tesis Program Studi Ilmu Gizi, Program Pasca Sarjana Universitas Sebelas Maret Surakarta. Latar Belakang : Diabetes Melitus (DM) adalah penyakit metabolik kronik yang meningkat prevalensinya di berbagai negara. Keadaan hiperglikemia pada DM menyebabkan terjadinya stres oksidatif yang ditandai dengan penurunan antioksidan tubuh. Lidah buaya bersifat teraupetik sebagai antidiabetik dan antioksidan. Penelitian ini bertujuan untuk mengetahui pengaruh jus lidah buaya terhadap kadar glukosa darah dan malondialdehid (MDA) pada tikus wistar diabetes yang diiinduksi aloksan. Metode : Penelitian ini adalah penelitian eksperimental laboratoris dengan rancangan pre and post randomized controlled group design. Sampel adalah tikus wistar jantan umur 2 - 2,5 bulan. Kontrol negatif (KN) tidak diinduksi aloksan dan jus lidah buaya. Kontrol positif (KP) diinduksi aloksan 120mg/kgBB tetapi tidak diberi jus lidah buaya. Kelompok K1, K2, dan K3 diinduksi aloksan dan diberi jus lidah buaya dengan dosis 5ml, 7,5ml, dan 10ml/200grBB/hari selama 14 hari. Kadar glukosa darah dan MDA diukur sebelum dan sesudah perlakuan. Data dianalisis dengan bantuan SPSS 19.0 for windows. Hasil : Terdapat perbedaan signifikan kadar glukosa darah dan MDA sebelum dan sesudah perlakuan pada ketiga dosis dengan nilai p K1 0,02; K2 <0,001; K3 <0,001 (p < 0,05). Kesimpulan : Jus lidah buaya dosis 5ml, 7,5ml, dan 10ml/200grBB/hari dapat menurunkan kadar glukosa darah dan MDA tikus wistar diabetes. Peningkatan dosis berpengaruh terhadap penurunan kadar glukosa darah. Peningkatan dosis tidak berpengaruh terhadap penurunan kadar MDA. Kata kunci : lidah buaya, tikus wistar diabetes, glukosa darah, MDA ABSTRACT Rini Astuti. S531308014. 2015. THE EFFECT OF Aloe vera JUICE ON THE BLOOD GLUCOSE AND MALONDIALDEHID (MDA) LEVELS AT DIABETIC WISTAR RATS ALLOXAN INDUCED. Supervisor I : Sugiarto. Supervisor II : Tonang Dwi Ardyanto. Tesis Nutritional Science Study Program, Post Graduate Program Sebelas Maret University Surakarta. Background : Diabetes mellitus (DM) is a chronic metabolic disease of which the prevalence is increased in many countries. Hyperglycemia in DM causes the oxidative stress being indicated by the decreased of antioxidant substances. Aloe vera poses theeraupetic role as antidiabetic and antioxidants. The objective of the study is to verify the effect of aloe vera juice on the blood glucose and malondialdehid (MDA) diabetic levels of the alloxan-induced wistar rats. Method : The study is an experimental design with pre and post randomized controlled group design. The subjects were male wistar rats on 2-2.5 months of age. Alloxan and aloe vera juice were not administered on the negative control (NC) group. While 120mg/kgBB alloxan but not the aloe vera juice were administered to the positive control (PC) group. Group K1, K2, and K3 was induced by Alloxan and the aloe vera juice with doses of 5 ml, 7,5 ml, and 10ml/200grBB/day were administered for 14 days. Blood glucose and MDA levels were measured before and after treatment. Data were analyzed with the SPSS 19.0 for windows. Results : There was a significant difference in blood glucose and the MDA levels before and after the treatment (with p of K1 0.02; K2 < 0.001; K3 < 0.001). Conclusion : Aloe vera juice of 5 ml, 7,5 ml, and 10ml/200grBB/day reduce blood glucose and MDA levels diabetic wistar rats. The increasing doses effect on the decrease of blood glucose level. The increasing doses no effect on the decrease of MDA level. Key word : aloe vera, diabetic wistar rats, blood glucose, MD
Endemic Bamboo (Poaceae, Bambusoideae) of the Lesser Sunda Islands
No full textMore than 50 species of bamboo were known from the Lesser Sunda Islands (LSI), including several endemic species. Endemic species are often highly specialized, found in limited geographical areas, and vulnerable to extinction if their habitat is destroyed. This study aimed to provide an account of endemic bamboo species on the LSI. Fieldwork involved collecting samples of bamboo in the LSI. Herbarium specimens of bamboo deposited in the Herbarium Bogoriense (BO), collected from the LSI were examined, and endemic LSI species were recorded. The conservation status followed the International Union for Conservation of Nature (IUCN) red list categories and criteria. The conservation status of unassessed species was evaluated using IUCN red list categories and criteria. A spatial analysis was also conducted. Data were analyzed and presented descriptively. There are 10 endemic bamboo species in the LSI, namely Bambusa ooh Widjaja & Astuti from Bali (conservation status: endangered), Chloothamnus reholttumianus (Soenarko) Widjaja from Sumba (vulnerable), C. schmutzii (S.Dransf.) Widjaja from Sumbawa and Flores (near threatened), Dinochloa kostermansiana S.Dransf. from Sumba and Flores (near threatened), D. sepang Widjaja & Astuti from Bali (vulnerable), Fimbribambusa rifaiana Widjaja from Alor (near threatened), Gigantochloa aya Widjaja & Astuti from Bali (vulnerable), G. baliana Widjaja & Astuti from Bali (vulnerable), G. taluh Widjaja & Astuti from Bali (vulnerable), and Schizostachyum purpureum Damayanto & Widjaja from Sumba (data deficient). They can be found at an altitude of 20–1700 m in various habitats, including forests, bamboo forests, villages, botanical gardens, along a road, slopes, valleys, riverbanks, and around a lake
PENGARUH KEAKTIFAN BELAJAR PESERTA DIDIK PADA M O D E L P E M B E L A J A R A N T W O S T A Y T W O S T R A Y B E R B A N T U A N L E M B A R K E R J A P E S E R T A D I D I K TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS (Studi Penelitian pada Materi Statistika Peserta Didik Kelas X SMA Negeri 3 Brebes Tahun Ajaran 2024/2025)
No full textASTUTI, NURKHOLIFAH WINDY. 2025. “Pengaruh Keaktifan Belajar Peserta Didik Pada Model Pembelajaran Two Stay Two Stray Berbantuan Lembar Kerja Peserta Didik Terhadap Kemampuan Komunikasi Matematis (Studi Penelitian Pada Materi Statistika Peserta Didik Kelas X SMA Negeri 3 Brebes Tahun Ajaran 2024/2025)”. Skripsi. Pendidikan Matematika. Fakultas Keguruan dan Ilmu Pendidikan. Universitas Pancasakti Tegal.
Pembimbing I : Dian Nataria Oktaviani, S.Si., M.Pd. Pembimbing II : Ibnu Sina, S.T., M.Pd., M.Kom.
Kata Kunci : Keaktifan Belajar, Model Pembelajaran Two Stay Two Stray
(TSTS), LKPD, Kemampuan Komunikasi Matematis
Keaktifan belajar dan kemampuan komunikasi matematis peserta didik yang masih rendah menjadi permasalahan dalam pembelajaran matematika. Hasil observasi dan wawancara awal menunjukkan bahwa sebagian besar peserta didik kurang aktif dalam pembelajaran dan belum mampu mengungkapkan ide matematis secara tertulis. Tujuan penelitian ini yaitu: (1) mendeskripsikan pengaruh keaktifan belajar peserta didik pada model pembelajaran TSTS berbantuan LKPD terhadap kemampuan komunikasi matematis peserta didik, (2) mengetahui peningkatan kemampuan komunikasi matematis peserta didik setelah menggunakan model pembelajaran TSTS berbantuan LKPD.
Pendekatan yang digunakan dalam penelitian ini adalah kuantitatif dengan metode pre-eksperimental dan desain one group pre-test–post-test. Populasi dalam penelitian ini adalah seluruh peserta didik kelas X semester genap SMA Negeri 3
Brebes tahun ajaran 2024/2025. Sampel penelitian adalah kelas X E6 yang dipilih dengan teknik purposive sampling. Teknik analisis data yang digunakan adalah analisis regresi linear sederhana, uji paired sample t-test, dan uji N-Gain.
Hasil penelitian ini menunjukan bahwa: (1) terdapat pengaruh keaktifan belajar pada model pembelajaran TSTS berbantuan LKPD terhadap kemampuan komunikasi matematis, (2) terdapat peningkatan kemampuan komunikasi matematis peserta didik setalah menggunakan model pembelajaran TSTS berbantuan LKPD. Guru disarankan untuk menerapkan model pembelajaran TSTS berbantuan LKPD sebagai alternatif dalam meningkatkan keaktifan belajar dan kemampuan komunikasi matematis peserta didik di kelas
Endemic Bamboo (Poaceae, Bambusoideae) of the Lesser Sunda Islands
No full textMore than 40 species of bamboo were known from the Lesser Sunda Islands (LSI), including several endemic species. Endemic species are often highly specialized, found in limited geographical areas, and vulnerable to extinction if their habitat is destroyed. This study aimed to provide an account of endemic bamboo species on the LSI. Fieldwork involved collecting samples of bamboo in the LSI. Herbarium specimens of bamboo deposited in the Herbarium Bogoriense (BO), collected from the LSI were examined, and endemic LSI species were recorded. The conservation status followed the International Union for Conservation of Nature (IUCN) red list categories and criteria. The conservation status of unassessed species was evaluated using IUCN red list categories and criteria. A spatial analysis was also conducted. Data were analyzed and presented descriptively. There are 10 endemic bamboo species in the LSI, namely Bambusa ooh Widjaja & Astuti from Bali (conservation status: endangered), Chloothamnus reholttumianus (Soenarko) Widjaja from Sumba (vulnerable), C. schmutzii (S.Dransf.) Widjaja from Sumbawa and Flores (near threatened), Dinochloa kostermansiana S.Dransf. from Sumba and Flores (near threatened), D. sepang Widjaja & Astuti from Bali (vulnerable), Fimbribambusa rifaiana Widjaja from Alor (near threatened), Gigantochloa aya Widjaja & Astuti from Bali (vulnerable), G. baliana Widjaja & Astuti from Bali (vulnerable), G. taluh Widjaja & Astuti from Bali (vulnerable), and Schizostachyum purpureum Damayanto & Widjaja from Sumba (data deficient). They can be found at an altitude of 20–1700 m in various habitats, including forests, bamboo forests, villages, botanical gardens, along a road, slopes, valleys, riverbanks, and around a lake
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