DISTRIBUTION AND GROWTH CONDITION OF ENHALUS ACOROIDES IN IRIOMOTE ISLAND

Abstract. What narrative is deemed most compelling to justify anti-immigrant sentiments when a country’s economy is not a cause for concern? We predicted that flourishing economies constrain the viability of realistic threat arguments. We found support for this prediction in an experiment in which participants were asked to take on the role of speechwriter for a leader with an anti-immigrant message (N = 75). As predicted, a greater percentage of realistic threat arguments and fewer symbolic threat arguments were generated in a condition in which the economy was expected to decline than when it was expected to grow or a baseline condition. Perhaps more interesting, in the economic growth condition, the percentage realistic entitlements and symbolic threat arguments generated were higher than when the economy was declining. We conclude that threat narratives to provide a legitimizing discourse for anti-immigrant sentiments are tailored to the economic context.

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VLS Growth of Si nanowhiskers on a H-terminated Si{111} surface

MRS Proceedings ◽

10.1557/proc-536-305 ◽

1998 ◽

Vol 536 ◽

Cited By ~ 1

Author(s):

N. Ozaki ◽

Y. Ohno ◽

S. Takeda ◽

M. Hirata

Keyword(s):

High Pressure ◽

Growth Condition ◽

Growth Mechanism ◽

Quantum Confinement ◽

Critical Value ◽

Extended Defects ◽

Vapor Liquid Solid ◽

Minimum Diameter ◽

Vls Growth ◽

Vapor Liquid

AbstractWe have grown Si nanowhiskers on a Si{1111} surface via the vapor-liquid-solid (VLS) mechanism. The minimum diameter of the crystalline is 3nm and is close to the critical value for the effect of quantum confinement. We have found that many whiskers grow epitaxially or non-epitaxially on the substrate along the 〈112〉 direction as well as the 〈111〉 direction.In our growth procedure, we first deposited gold on a H-terminated Si{111} surface and prepared the molten catalysts of Au and Si at 500°C. Under the flow of high pressure silane gas, we have succeeded in producing the nanowhiskers without any extended defects. We present the details of the growth condition and discuss the growth mechanism of the nanowhiskers extending along the 〈112〉 direction.

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PREFERENSI PENEMPELAN, PERTUMBUHAN, DAN SINTASAN LARVA TERIPANG PASIR, Holothuria scabra PADA SUBSTRAT LAMUN YANG BERBEDA

Jurnal Riset Akuakultur ◽

10.15578/jra.11.3.2016.249-258 ◽

2017 ◽

Vol 11 (3) ◽

pp. 249

Author(s):

Lisa Fajar Indriana ◽

Yuli Afrianti ◽

Sitti Hilyana ◽

Muhammad Firdaus Firdaus

Keyword(s):

Survival Rate ◽

Economic Value ◽

Growth And Survival ◽

Holothuria Scabra ◽

Enhalus Acoroides ◽

Randomized Design ◽

Settlement Substrate ◽

Cymodocea Rotundata ◽

Syringodium Isoetifolium ◽

Cymodocea Serrulata

Teripang pasir, Holothuria scabra merupakan komoditas hasil laut yang bernilai ekonomis tinggi. Penangkapan berlebihan stok di alam mendorong berkembangnya kegiatan budidaya. Penempelan merupakan fase kritis pada larva teripang karena terjadi peralihan sifat planktonis ke bentik yang memerlukan substrat. Penelitian ini bertujuan untuk mengetahui preferensi penempelan, pertumbuhan, dan sintasan larva H. scabra fase penempelan pada substrat lamun yang berbeda. Penelitian menggunakan metode rancangan acak lengkap dengan perlakuan empat jenis daun lamun berbeda dan lima ulangan. Perlakuan terdiri atas Enhalus acoroides (L-1), Syringodium isoetifolium (L-2), Cymodocea serrulata (L-3), dan Cymodocea rotundata (L-4). Jumlah awal larva sebanyak 1.000 individu dan substrat dirangkai dengan luasan yang sama sebesar 12 cm x 17 cm untuk setiap unit penelitian. Hasil penelitian menunjukkan jenis lamun yang digunakan sebagai substrat berpengaruh secara nyata terhadap preferensi penempelan dan sintasan larva teripang pasir, namun tidak berpengaruh terhadap pertumbuhan. E. acoroides menunjukkan hasil terbaik dengan preferensi penempelan 0,26 ind. cm-2 dan sintasan 10,66%; sehingga layak digunakan sebagai substrat penempelan dalam pembenihan teripang pasir, H. scabra.Holothuria scabra larvae on different seagrass substrates. By: Lisa Fajar Indriana, Yuli Afrianti, Sitti Hilyana, and Muhammad FirdausSandfish Holothuria scabra is marine commodities with a high economic value. Overfishing of natural stocks has compelled an interest to begin aquaculture practice. Settlement is a critical phase for the planktonic larvae as they will transform to benthic form in the presence of substrate. This study aims to evaluate the settlement preferences, growth, and survival rate of H. scabra larvae settled on different seagrass leaves. The research was conducted using the Completely randomized design with four different species of seagrass leaves and five replications. The treatments consist of Enhalus acoroides (L-1), Syringodium isoetifolium (L-2), Cymodocea serrulata (L-3), and Cymodocea rotundata (L-4). Initial number of larvae was 1,000 individuals and the substrate was set with same widthof 12 cm x 17 cm for each unit. Results of the experiment indicated that settlement preference and survival rate of H. scabra larvae was significantly affected by seagrass used as substrate while no significantly differences was observed for growth of larvae. E. acoroides showed the best result with 0.26 ind. cm-2 settelement preference and 10.66% survival rate, so that suitable to be used as settlement substrate in H. scabra hatchery.

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Reproductive organ development of tropical seagrass, Enhalus acoroides

Agriculture and Natural Resources ◽

10.34044/j.anres.2020.54.4.07 ◽

2020 ◽

Keyword(s):

Reproductive Organ ◽

Organ Development ◽

Enhalus Acoroides

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Update on nitrite in animal feed – Results of the studies of the ESST-working group ‘Nitrite in feed’

Sugar Industry ◽

10.36961/si17206 ◽

2016 ◽

pp. 91-96

Author(s):

Stefan Frenzel

Keyword(s):

Growth Condition ◽

Analytical Methods ◽

Working Group ◽

Animal Feed ◽

Extraction Process ◽

Study Group ◽

External Effects ◽

Complex Behaviour ◽

Sugar Extraction ◽

Expert Study

The presentation includes monitoring results of the companies participating in the ESST expert study group on “Nitrite in feed”. It will be obvious that the complex behaviour of nitrite in the sugar extraction process overlaps with external effects such as growth condition of the beet which are not under the control of the process owner. Currently the lack of reliable and validated analytical methods do not allow to comply to the questionable maximum nitrite limit for animal feed materials.

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