cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25549/inscriptifact-ouc111302935
title: Exodus 23

description: [Text Description:] Fragment Exodus 23:8-10 ❧ [Medium:] Parchment ❧ [Script Note:] Jewish ❧ [Physical Object Description:] Parchment fragment ❧
DOI: 10.25549/inscriptifact-ouc111322055
title: Cuneiform Tablet 000244, CUN.000244

description: [Text Description:] Cuneiform Tablet, Letter, 000244 ❧ [Text or Publication Number Note:] CUN.000244 ❧ [Medium:] Clay ❧ [Script Note:] Cuneiform, Non-Alphabetic ❧ [Physical Object Description:] Clay tablet with cuneiform script
DOI: 10.15468/dl.n7ms95
title: Occurrence Download

description: A dataset containing 3362 species occurrences available in GBIF matching the query:
{
 "and" : [
 "CoordinateUncertaintyInMeters 0.0-9969.0",
 "Geometry POLYGON((-143.61328 9.31641,-35.56639 9.31641,-35.56639 57.59765,-143.61328 57.59765,-143.61328 9.31641))",
 "TaxonKey is Conium maculatum L."
 ]
}

 The dataset includes 3362 records from 45 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0079475-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.75gvce
title: Occurrence Download

description: A dataset containing 217 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Megascops koepckeae (Hekstra, 1982)"
 ]
}

 The dataset includes 217 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005662-180508205500799/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9o2ufg
title: Occurrence Download

description: A dataset containing 1486 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "Country is Mexico",
 "Country is United States of America"
 ]
 },
 "Geometry POLYGON((-107.16064 21.59912,-94.48242 23.4668,-104.15039 46.14258,-123.83789 44.56055,-123.13477 20.6543,-107.16064 21.59912))",
 "HasCoordinate is true",
 "TaxonKey is Vulpes macrotis Merriam, 1888",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 1486 records from 32 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003946-190415153152247/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.phwgtx
title: Occurrence Download

description: A dataset containing 665 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Sao Tome and Principe",
 "DatasetKey is Natural History Museum (London) Collection Specimens"
 ]
}

 The dataset includes 665 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003701-180925134338326/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111130221
title: Hev(?)Unidentified Fragment, DSS F.132

description: [Text Description:] Unidentified text ❧ [Text or Publication Number Note:] DSS F.132; DSS F.Unident.; Schoyen MS 5439/2 ❧ [Medium:] Parchment ❧ [Script Note:] Jewish ❧ [Physical Object Description:] 2.0x1.7cm; reddish-brown, flaking ❧ [Physical Object Note:] Remains of 4 lines; line spacing averages 5mm ❧ [Physical Object Note:] Formerly attached to Schoyen MS 5439/1
DOI: 10.15468/dl.zyvkn3
title: Occurrence Download

description: A dataset containing 432 species occurrences available in GBIF matching the query:
{
 "and" : [
 "GadmGid is BRA",
 "TaxonKey is Caiman yacare (Daudin, 1801)"
 ]
}

 The dataset includes 432 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0079477-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111130132
title: Hev(?)Unidentified Fragment, DSS F.132

description: [Text Description:] Unidentified text ❧ [Text or Publication Number Note:] DSS F.132; DSS F.Unident.; Schoyen MS 5439/2 ❧ [Medium:] Parchment ❧ [Script Note:] Jewish ❧ [Physical Object Description:] 2.0x1.7cm; reddish-brown, flaking ❧ [Physical Object Note:] Remains of 4 lines; line spacing averages 5mm ❧ [Physical Object Note:] Formerly attached to Schoyen MS 5439/1
DOI: 10.15468/dl.oetegy
title: Occurrence Download

description: A dataset containing 665 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Sao Tome and Principe",
 "DatasetKey is Natural History Museum (London) Collection Specimens"
 ]
}

 The dataset includes 665 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003705-180925134338326/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ftt1dx
title: Occurrence Download

description: A dataset containing 67 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Lagothrix cana (É.Geoffroy Saint-Hilaire, 1812)",
 "HasCoordinate is TRUE"
 ]
}

 The dataset includes 67 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005697-180508205500799/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/inscriptifact-ouc111133549
title: Daniel (Second Exemplaire), 1Q72 Daniel b:Alternate Text Title,1Q Daniel b:Alternate Text Title,

description: [Text Description:] Parts of Daniel 3:22-28, 27-30 ❧ [Text or Publication Number Note:] 1Q72 Dan b ❧ [Excavation Description:] Found in Qumran Cave 1 by George Isha'ya in 1949 and delivered to Mar Athanasius Samuel, Metropolitan of St. Mark's Monastery in Jerusalem. ❧ [Medium:] Parchment ❧ [Script Note:] Jewish ❧ [Physical Object Description:] One fragment is adhering to the back of a fragment of 1Q71 Dan a; the second fragment is adhering to the back of 1Q34bis LitPr b. ❧ [Physical Object Note:] Significant blackening of parchment. Rule lines can be clearly seen where the skin is not blackened.
DOI: 10.15468/dl.9svujt
title: Occurrence Download

description: A dataset listing the 2 species recorded in GBIF matching the query:
{
 "and" : [
 "Country is Brazil",
 "Geometry POLYGON((-56.31640625 -26.2578125,-52.31640625 -26.2578125,-52.31640625 -22.2578125,-56.31640625 -22.2578125,-56.31640625 -26.2578125))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Caiman latirostris (Daudin, 1801)",
 "Year 1821-2020"
 ]
}

 The dataset's 2 records were derived from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0079483-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qlmy3l
title: Occurrence Download

description: A dataset containing 118 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Spain",
 "TaxonKey is Margaritifera margaritifera (Linnaeus, 1758)"
 ]
}

 The dataset includes 118 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003947-190415153152247/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.knpewd
title: Occurrence Download

description: A dataset containing 3808167 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Orchidaceae"
 ]
}

 The dataset includes 3808167 records from 1442 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000397-180925134338326/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.15146479
title: Table 1 in The pseudoscorpions of the Caucasian Sphagnum bogs: part I. Description of Neobisium (Neobisium) adjaricum sp. nov. and redescription of the holotype of N. (N.) vilcekii Krumpal, 1983 (Arachnida, Pseudoscorpiones, Neobisiidae)

description: Table 1. Numbers of setae on the coxae of some species of the subgenus Neobisium Neobisium from the Caucasus and adjacent territories.
SpeciesPedipalpal coxa (including manducatory process)Manducatory process of pedipalpal coxaeCoxa ICoxa IICoxa IIICoxa IVN. (N.) adjaricum sp. nov.11-1245-66-8710-11N. (N.) anatolicum94107611N. (N.) artaxerxesi10-1355-75-64-69-13N. (N.) catherineae1246-765-67-8N. (N.) crassifemoratum8-937-97-85-69-11N. (N.) golovatchi5-744-74-53-59-10N. (N.) kamenskyi956668N. (N.) kobachidzei10-1246-7778-13N. (N.) kovalevskayae1356-965-76-8N. (N.) speleophilum10-1246-74-54-68-10N. (N.) vilcekii12-1556-117-127-1113-22
description: Published as part of Kolesnikov, Vasiliy B., Christophoryova, Jana, Przhiboro, Andrey A. & Turbanov, Ilya S., 2022, The pseudoscorpions of the Caucasian Sphagnum bogs: part I. Description of Neobisium (Neobisium) adjaricum sp. nov. and redescription of the holotype of N. (N.) vilcekii Krumpal, 1983 (Arachnida, Pseudoscorpiones, Neobisiidae), pp. 165 in ZooKeys 1100 on page 165, DOI: 10.3897/zookeys.1100.81910
DOI: 10.5281/zenodo.15146480
title: Table 1 in The pseudoscorpions of the Caucasian Sphagnum bogs: part I. Description of Neobisium (Neobisium) adjaricum sp. nov. and redescription of the holotype of N. (N.) vilcekii Krumpal, 1983 (Arachnida, Pseudoscorpiones, Neobisiidae)

description: Table 1. Numbers of setae on the coxae of some species of the subgenus Neobisium Neobisium from the Caucasus and adjacent territories.
SpeciesPedipalpal coxa (including manducatory process)Manducatory process of pedipalpal coxaeCoxa ICoxa IICoxa IIICoxa IVN. (N.) adjaricum sp. nov.11-1245-66-8710-11N. (N.) anatolicum94107611N. (N.) artaxerxesi10-1355-75-64-69-13N. (N.) catherineae1246-765-67-8N. (N.) crassifemoratum8-937-97-85-69-11N. (N.) golovatchi5-744-74-53-59-10N. (N.) kamenskyi956668N. (N.) kobachidzei10-1246-7778-13N. (N.) kovalevskayae1356-965-76-8N. (N.) speleophilum10-1246-74-54-68-10N. (N.) vilcekii12-1556-117-127-1113-22
description: Published as part of Kolesnikov, Vasiliy B., Christophoryova, Jana, Przhiboro, Andrey A. & Turbanov, Ilya S., 2022, The pseudoscorpions of the Caucasian Sphagnum bogs: part I. Description of Neobisium (Neobisium) adjaricum sp. nov. and redescription of the holotype of N. (N.) vilcekii Krumpal, 1983 (Arachnida, Pseudoscorpiones, Neobisiidae), pp. 165 in ZooKeys 1100 on page 165, DOI: 10.3897/zookeys.1100.81910
DOI: 10.71795/faeq-zc40
title: Period (Wales) thesaurus
DOI: 10.15468/dl.hdn7zz
title: Occurrence Download

description: A dataset containing 63440 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Oncaeidae",
 "Geometry POLYGON((170 20, 170 50, 120 50, 120 20, 170 20))",
 "HasCoordinate is true"
 ]
}

 The dataset includes 63440 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036860-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.atzbnd
title: Occurrence Download

description: A dataset containing 104815 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "TaxonKey is Culex pipiens Linnaeus, 1758",
 "Year is greater than or equal to 2010",
 "Year is less than or equal to 2024"
 ]
}

 The dataset includes 104815 records from 99 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036853-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ekgwb7
title: Occurrence Download

description: A dataset containing 51 species occurrences available in GBIF matching the query:
{
 "and" : [
 "OccurrenceStatus is Present",
 "TaxonKey is one of (Megachile facialis Vachal, 1908, Megachile corona Mitchell, 1930)"
 ]
}

 The dataset includes 51 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036861-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.14502198
title: NOVERBAL MULOQOTNI O'RGANISHNING DOLZARBLIGI XUSUSIDA AYRIM MULOHAZALAR.
DOI: 10.5281/zenodo.14502199
title: NOVERBAL MULOQOTNI O'RGANISHNING DOLZARBLIGI XUSUSIDA AYRIM MULOHAZALAR.
DOI: 10.25326/663
title:  GOBABEB station - ozone concentration - hourly Level 2 - Station processed

description: Hourly processed ozone mixing ratio (ppb) measured from a [HORIBA APOA-370 analyser](https://www.horiba.com/int/process-and-environmental/products/detail/action/show/Product/apoa-370-450/) at the ground-based site of [Gobabeb](https://gobabeb.org/) (23°33’40‘’S, 15°02’24”E, 404 m) in Namibia.

Gobabeb is located in the middle of the hyperarid Namib Desert at the edge of the Kuiseb River, which separates the dune desert to the south, from the gravel plain to the north. The region is characterized by very low precipitation, and high temperatures throughout the year, and fog events about 80 days per year. The most significant city, Walvis Bay, is about 85 km to the north-west.

A AERIS-ICARE visualisation tool is also available [here](https://dataviz.icare.univ-lille.fr/stations-hub/GOBABEB).
DOI: 10.15468/dl.gj38xd
title: Occurrence Download

description: A dataset containing 109 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Indonesia",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Varanus indicus (Daudin, 1802)"
 ]
}

 The dataset includes 109 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036862-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.mm4stq
title: Occurrence Download

description: A dataset containing 475 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Caligidae",
 "Geometry POLYGON((170 20, 170 50, 120 50, 120 20, 170 20))",
 "HasCoordinate is true"
 ]
}

 The dataset includes 475 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036863-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.57967/hf/3814
title: speaker-identification-toolkit
DOI: 10.5281/zenodo.14502210
title: DETERMINING PARAMETERS THAT REDUCE FIBER LOSS AND IMPROVE CLEANING EFFICIENCY IN DIFFERENT DRUM COTTON SEPARATORS
DOI: 10.5281/zenodo.14502211
title: DETERMINING PARAMETERS THAT REDUCE FIBER LOSS AND IMPROVE CLEANING EFFICIENCY IN DIFFERENT DRUM COTTON SEPARATORS
DOI: 10.15468/dl.pfzm3g
title: Occurrence Download

description: A dataset containing 12009 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Ectinosomatidae",
 "Geometry POLYGON((170 20, 170 50, 120 50, 120 20, 170 20))",
 "HasCoordinate is true"
 ]
}

 The dataset includes 12009 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036864-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6buu96
title: Occurrence Download

description: A dataset containing 3148 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Human Observation",
 "Country is one of (Argentina, Chile)",
 "DatasetKey is EOD – eBird Observation Dataset",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Pluvianellus socialis G.R.Gray, 1846",
 "Year 2014-2024"
 ]
}

 The dataset includes 3148 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036866-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.f5avfn
title: Occurrence Download

description: A dataset containing 165 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Pinnotheridae",
 "Geometry POLYGON((170 20, 170 50, 120 50, 120 20, 170 20))",
 "HasCoordinate is true"
 ]
}

 The dataset includes 165 records from 22 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036868-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.67n9sw
title: Occurrence Download

description: A dataset containing 65 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Month is one of (January, February, March)",
 "OccurrenceStatus is Present",
 "TaxonKey is Poecile hyrcanus Zarudny & Loudon, 1905"
 ]
}

 The dataset includes 65 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036871-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.97dsbc
title: Occurrence Download

description: A dataset containing 51 species occurrences available in GBIF matching the query:
{
 "and" : [
 "OccurrenceStatus is Present",
 "TaxonKey is Megachile facialis Vachal, 1908"
 ]
}

 The dataset includes 51 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036872-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.629taj
title: Occurrence Download

description: A dataset containing 37490 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Human Observation, Specimen)",
 "Country is United States of America",
 "OccurrenceStatus is Present",
 "TaxonKey is Aedes albopictus (Skuse, 1894)",
 "Year 1990-2024"
 ]
}

 The dataset includes 37490 records from 23 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036869-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.k3tkve
title: Occurrence Download

description: A dataset containing 65 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Month is one of (January, February, March)",
 "OccurrenceStatus is Present",
 "TaxonKey is Poecile hyrcanus Zarudny & Loudon, 1905"
 ]
}

 The dataset includes 65 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036873-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jwfx39
title: Occurrence Download

description: A dataset containing 44634 species occurrences available in GBIF matching the query:
{
 "and" : [
 "SpeciesKey is Phasianus colchicus Linnaeus, 1758",
 "Year is greater than 2000",
 "Country is United States of America",
 "StateProvince is Montana",
 "BasisOfRecord is one of (Human Observation, Living Specimen, Machine Observation, Observation, Occurrence evidence)"
 ]
}

 The dataset includes 44634 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036870-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.by62ez
title: Occurrence Download

description: A dataset containing 72363 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-45.16595 -17.05358,-46.14391 -19.51182,-44.94151 -19.76096,-44.42848 -17.22976,-45.16595 -17.05358))",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Chordata"
 ]
}

 The dataset includes 72363 records from 37 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036867-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.23719/1531734
title: Comparing U.S. cropland expansion estimates from the LCMAP with three other sources

description: This dataset contains tabular data and scripts used to analyze and produce figures for the manuscript Martin et al. entitled "Tracking cropland transitions: a comparative analysis of U.S. land cover change data."
DOI: 10.6084/m9.figshare.27616145
title: Local Signal Detection on Irregular Domains with Generalized Varying Coefficient Models

description: In spatial analysis, it is essential to understand and quantify spatial or temporal heterogeneity. This article focuses on the generalized spatially varying coefficient model (GSVCM), a powerful framework to accommodate spatial heterogeneity by allowing regression coefficients to vary in a given spatial domain. We propose a penalized bivariate spline method for detecting local signals in GSVCM. The key idea is to use bivariate splines defined on triangulation to approximate nonparametric varying coefficient functions and impose a local penalty on L2 norms of spline coefficients for each triangle to identify null regions of zero effects. Moreover, we develop model confidence regions as the inference tool to quantify the uncertainty of the estimated null regions. Our method partitions the region of interest using triangulation and efficiently approximates irregular domains. In addition, we propose an efficient algorithm to obtain the proposed estimator using the local quadratic approximation. We also establish the consistency of estimated nonparametric coefficient functions and the estimated null regions. The numerical performance of the proposed method is evaluated in both simulation cases and real data analysis. Supplementary materials for this article are available online, including a standardized description of the materials available for reproducing the work.
DOI: 10.6084/m9.figshare.27616145.v1
title: Local signal detection on irregular domains with generalized varying coefficient models

description: In spatial analysis, it is essential to understand and quantify spatial or temporal heterogeneity. This paper focuses on the generalized spatially varying coefficient model (GSVCM), a powerful framework to accommodate spatial heterogeneity by allowing regression coefficients to vary in a given spatial domain. We propose a penalized bivariate spline method for detecting local signals in GSVCM. The key idea is to use bivariate splines defined on triangulation to approximate nonparametric varying coefficient functions and impose a local penalty on L2 norms of spline coefficients for each triangle to identify null regions of zero effects. Moreover, we develop model confidence regions as the inference tool to quantify the uncertainty of the estimated null regions. Our method partitions the region of interest using triangulation and efficiently approximates irregular domains. In addition, we propose an efficient algorithm to obtain the proposed estimator using the local quadratic approximation. We also establish the consistency of estimated nonparametric coefficient functions and the estimated null regions. The numerical performance of the proposed method is evaluated in both simulation cases and real data analysis.