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Attack Intensity Variety of Coffea arabica and Coffea canephora Hypothenemus hampei Ferrari, 1867 (Coleoptera: Curculionidae: Scolytinae) in North Sumatra Elida Hafni Siregar; Aida Fitriani Sitompul; Syarifuddin; Yusron Efendi
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series D
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3001

Coffee is one of the export commodities of the State of Indonesia, a foreign exchange earner besides oil and gas so that it has an important role in economic activities in Indonesia. The main problem with smallholder coffee plantations is the low productivity and quality to meet export standards. One of the causes is pest attack which also causes economic loss. The coffee berry borer (Hypothenemus hampei Ferrari) is one of the main causes of the decline in coffee production in Indonesia, even in all coffee-producing countries in the world. The purpose of this study was to analyze the attack intensity of the coffee berry borer (H. hampei) on Coffea arabica and Coffea canephora plants in North Sumatra. The research was conducted in Karo, Dairi, Samosir, Humbahas, Taput, Tapsel, Toba, and Simalungun districts spread over fifteen locations. Sampling in this study was carried out exploratively with the Random Sampling method. The results showed that the highest attack intensity of H. hampei on C. arabica was at Paranjulu (56 %) with an altitude of 949 mdpl; and on C. canephora was at Marihat Huta (62 %) with an altitude of 898 mdpl. Huta Galung in Samosir district with an altitude of 1759 mdpl did not find attack intensity H. hampei. The conclusion showed that altitude affected the attack intensity of H. hampei

Development of Microsatellite Markers to Determine Genetic Diversity of Indonesian Betel Nut (Areca catechu L.) Muhammad Roiyan Romadhon; Sobir; Willy Bayuardi Suwarno; Deden Derajat Matra
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series D
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3002

Areca nut (Areca catechu) belongs to the monocotyledonous and palm family of plants known as betel nut or supari plants. The Center of origin areca nut comes from India. Areca nut is a cross-pollinated plant with a heterozygous heterogeneous genetic constitution. Next-generation sequencing is widely used for plant breeding activities, including developing SSR markers with an in-silico approach. This research aims to develop an SSR marker to detect genetic diversity in local areca nut from Indonesia. The genomic data used to develop SSR markers were obtained from the Whole Genome Sequencing of Pinang Reyan Hainan Cultivars obtained from NCBI. Fragments containing SSR regions were isolated using MISA software, and primers were designed with Primer3web v.4.1.0 (https://bioinfo.ut.ee/primer3/). The average total size of the sequences tested was 168770731.8, with a total number of SSRs identified as many as 1149,813. SSR motifs are used as a step in genetic diversity research because these motifs will be used in primary attachments which in turn can affect genetic diversity. There were twenty-eight primers generated from four amplicons (100-150, 150-200, 200-250, and 250-300 bp) used for multiplex primers with motifs (AAT)37, (TA)53, (TA)54, (TC)52, (TC)52, (TG)53, and (AG)54.

Trend Analysis of Land Change in the Kreo Sub-watershed Jatibarang Reservoir, Semarang City Andreas Hudisasmoko; Suharyanto; Suprapto
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series D
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3003

The arrangement of land systematically and in an integrated manner is an important effort to protect the watersheds. The Jatibarang reservoir in Kreo catchment area also have sedimentation problems, which can be a serious threat to the useful life of the Jatibarang reservoir. The purpose of this study was to analyze the trends of land cover changes in the Jatibarang reservoir watersheds from 1999 to 2020. The assessment of land cover changes based on Landsat 8 satellite image data of the reservoir watersheds area in 1999, 2003, 2010, 2013, 2015, 2018, 2020 collected from the https://earthexplorer.usgs.gov/. The analysis of land cover data using ArcGis Swat software. There was a slight decline of forest area from 1999 to 2010. That was due to the function changes off forest as paddy fields and built-up land. After 2010, there was a degradation of the forest area and paddy fields, followed by a fairly rapid increase in built-up land. The type of built-up land cover increased by ± 308% due to the rate of population growth which resulted in an increase of the need for housing and the growth of industrial area. A slight rate of forest reduction is caused by the needs to provide tourism-related land such as stalls, parking lots and additional tourist facilities. The garden area which decreased until 2010, gradually increasing from 2013 to 2020. This is related to the change in people's tendency to change their livelihood from farming to gardening. It was also observed that in 2020 the waters of the Jatibarang reservoir had decreased. These results indicate that there has been a change in the function of the Jatibarang reservoir land for the needs of the surrounding community.

Neuthropil-to-Lymphocyte Ratio Correlation with Pneumonia Severity Index in COVID-19 Patients Hendrastutik Apriningsih; Nurhasan Agung Prabowo; Reviono; Betty Suryawati; Tonang Dwi Ardyanto
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series D
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3004

COVID-19 is still a major problem and characterized by the development and progression of inflammatory responses. Assessment of disease degree includes several tools, such as the pneumonia severity index (PSI). However, because the pandemic occurs in all regions in Indonesia, not all health facilities have a complete diagnostic tool to assess the severity of pneumonia. It is necessary to have an easy, inexpensive, and readily available examination to determine the COVID-19 disease's severity, such as Neutrophil-to-Lymphocyte Ratio (NLR). The purpose of this study was to determine the correlation between NLR and PSI in COVID-19 patients. The research was carried out on the COVID-19 ward of Universitas Sebelas Maret (UNS) Hospital in February 2021. Examination of laboratory parameters and X-rays was carried out when the patients entered the Emergency Room at the hospital. A prospective cohort study, with the population being patients >18 years old with mild to critical COVID-19 and being admitted from February to March 2021. Statistical analysis was conducted using the Pearson correlation test with SPSS 25, in which case p was deemed significant if it was <0.05. Results were obtained from 49 COVID-19 patients treated in the COVID-19 ward, whose mean age was 49.83 + 13.31, NLR and PSI were 8.85 + 13.25, 61.673 + 26.635, respectively. There was a strong positive correlation between NLR and PSI (p = 0.001; r = 0.488). NLR was correlated with PSI in COVID-19 patients.

Attack Intensity Variety of Coffea arabica and Coffea canephora Hypothenemus hampei Ferrari, 1867 (Coleoptera: Curculionidae: Scolytinae) in North Sumatra Elida Hafni Siregar; Aida Fitriani Sitompul; Syarifuddin; Yusron Efendi
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series D
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3001

Coffee is one of the export commodities of the State of Indonesia, a foreign exchange earner besides oil and gas so that it has an important role in economic activities in Indonesia. The main problem with smallholder coffee plantations is the low productivity and quality to meet export standards. One of the causes is pest attack which also causes economic loss. The coffee berry borer (Hypothenemus hampei Ferrari) is one of the main causes of the decline in coffee production in Indonesia, even in all coffee-producing countries in the world. The purpose of this study was to analyze the attack intensity of the coffee berry borer (H. hampei) on Coffea arabica and Coffea canephora plants in North Sumatra. The research was conducted in Karo, Dairi, Samosir, Humbahas, Taput, Tapsel, Toba, and Simalungun districts spread over fifteen locations. Sampling in this study was carried out exploratively with the Random Sampling method. The results showed that the highest attack intensity of H. hampei on C. arabica was at Paranjulu (56 %) with an altitude of 949 mdpl; and on C. canephora was at Marihat Huta (62 %) with an altitude of 898 mdpl. Huta Galung in Samosir district with an altitude of 1759 mdpl did not find attack intensity H. hampei. The conclusion showed that altitude affected the attack intensity of H. hampei

Development of Microsatellite Markers to Determine Genetic Diversity of Indonesian Betel Nut (Areca catechu L.) Muhammad Roiyan Romadhon; Sobir; Willy Bayuardi Suwarno; Deden Derajat Matra
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series D
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3002

Areca nut (Areca catechu) belongs to the monocotyledonous and palm family of plants known as betel nut or supari plants. The Center of origin areca nut comes from India. Areca nut is a cross-pollinated plant with a heterozygous heterogeneous genetic constitution. Next-generation sequencing is widely used for plant breeding activities, including developing SSR markers with an in-silico approach. This research aims to develop an SSR marker to detect genetic diversity in local areca nut from Indonesia. The genomic data used to develop SSR markers were obtained from the Whole Genome Sequencing of Pinang Reyan Hainan Cultivars obtained from NCBI. Fragments containing SSR regions were isolated using MISA software, and primers were designed with Primer3web v.4.1.0 (https://bioinfo.ut.ee/primer3/). The average total size of the sequences tested was 168770731.8, with a total number of SSRs identified as many as 1149,813. SSR motifs are used as a step in genetic diversity research because these motifs will be used in primary attachments which in turn can affect genetic diversity. There were twenty-eight primers generated from four amplicons (100-150, 150-200, 200-250, and 250-300 bp) used for multiplex primers with motifs (AAT)37, (TA)53, (TA)54, (TC)52, (TC)52, (TG)53, and (AG)54.

Trend Analysis of Land Change in the Kreo Sub-watershed Jatibarang Reservoir, Semarang City Andreas Hudisasmoko; Suharyanto; Suprapto
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series D
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3003

The arrangement of land systematically and in an integrated manner is an important effort to protect the watersheds. The Jatibarang reservoir in Kreo catchment area also have sedimentation problems, which can be a serious threat to the useful life of the Jatibarang reservoir. The purpose of this study was to analyze the trends of land cover changes in the Jatibarang reservoir watersheds from 1999 to 2020. The assessment of land cover changes based on Landsat 8 satellite image data of the reservoir watersheds area in 1999, 2003, 2010, 2013, 2015, 2018, 2020 collected from the https://earthexplorer.usgs.gov/. The analysis of land cover data using ArcGis Swat software. There was a slight decline of forest area from 1999 to 2010. That was due to the function changes off forest as paddy fields and built-up land. After 2010, there was a degradation of the forest area and paddy fields, followed by a fairly rapid increase in built-up land. The type of built-up land cover increased by ± 308% due to the rate of population growth which resulted in an increase of the need for housing and the growth of industrial area. A slight rate of forest reduction is caused by the needs to provide tourism-related land such as stalls, parking lots and additional tourist facilities. The garden area which decreased until 2010, gradually increasing from 2013 to 2020. This is related to the change in people's tendency to change their livelihood from farming to gardening. It was also observed that in 2020 the waters of the Jatibarang reservoir had decreased. These results indicate that there has been a change in the function of the Jatibarang reservoir land for the needs of the surrounding community.

Neuthropil-to-Lymphocyte Ratio Correlation with Pneumonia Severity Index in COVID-19 Patients Hendrastutik Apriningsih; Nurhasan Agung Prabowo; Reviono; Betty Suryawati; Tonang Dwi Ardyanto
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series D
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3004

COVID-19 is still a major problem and characterized by the development and progression of inflammatory responses. Assessment of disease degree includes several tools, such as the pneumonia severity index (PSI). However, because the pandemic occurs in all regions in Indonesia, not all health facilities have a complete diagnostic tool to assess the severity of pneumonia. It is necessary to have an easy, inexpensive, and readily available examination to determine the COVID-19 disease's severity, such as Neutrophil-to-Lymphocyte Ratio (NLR). The purpose of this study was to determine the correlation between NLR and PSI in COVID-19 patients. The research was carried out on the COVID-19 ward of Universitas Sebelas Maret (UNS) Hospital in February 2021. Examination of laboratory parameters and X-rays was carried out when the patients entered the Emergency Room at the hospital. A prospective cohort study, with the population being patients >18 years old with mild to critical COVID-19 and being admitted from February to March 2021. Statistical analysis was conducted using the Pearson correlation test with SPSS 25, in which case p was deemed significant if it was <0.05. Results were obtained from 49 COVID-19 patients treated in the COVID-19 ward, whose mean age was 49.83 + 13.31, NLR and PSI were 8.85 + 13.25, 61.673 + 26.635, respectively. There was a strong positive correlation between NLR and PSI (p = 0.001; r = 0.488). NLR was correlated with PSI in COVID-19 patients.

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Editorial Address
Jalan Akasia Permai A.10, Malang, Jawa Timur, Indonesia

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Kab. malang,

Jawa timur

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Widodo

Contact Email nst.journal.editor@gmail.com

Phone +6282132116373

Journal Mail Official nst.journal.editor@gmail.com

Editorial Address Jalan Akasia Permai A.10, Malang, Jawa Timur, Indonesia

Location Kab. malang, Jawa timur INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Widodo

Contact Email
nst.journal.editor@gmail.com

Phone
+6282132116373

Journal Mail Official
nst.journal.editor@gmail.com

Editorial Address
Jalan Akasia Permai A.10, Malang, Jawa Timur, Indonesia

Location
Kab. malang,

Jawa timur

INDONESIA