Tiger Eyes Book Free Download
Johna Delehanty
Why can't all heirloom varieties be as easy to grow and drop-dead gorgeous as Tiger Eyes Marigolds? This fabulous French marigold surprises and delights with big, bold "eyes" of deepest red and brightest yellow all summer longon nifty little plants just a foot high and wide. If you love flowers (or want to protect your tomatoes and other veggies from root knot nematodes), you must treat yourself to Tiger Eyes Marigold.
Tiger Eyes Cutleaf Staghorn Sumac, scientifically known as Rhus typhina 'Bailtiger', is a noteworthy deciduous shrub due to its visually stunning attributes. Recognized for its unique chartreuse foliage that transitions into intense, fiery oranges and scarlets in the fall, this sumac variety adds vibrant colors to any landscape.
A 39-year-old male patient presented to our hospital with a 3-month history of repetitive, intermittent head turning to right. The symptom showed no fluctuation and did not improve after rest. The physical examination and neurological examination were unremarkable except right cervical dystonia with positive sensory trick. Cervical spine X-ray, nerve conduction velocity, electromyography, electroencephalography, and laboratory evaluation were normal. T2-weighted MRI showed a typical eye-of-the-tiger sign (Fig. 1). This imaging finding suggested PKAN. But, further study of the patient revealed no evidence of PANK2 gene mutation, aceruloplasminaemia, neuroferritinopathy, or retinopathy.
We reviewed published literature and found three major series studying eye-of-the-tiger sign and PANK2 mutation (Table 1) (Hayflick et al. 2003; Hartig et al. 2006; McNeill et al. 2008). And there are several PANK2-negative eye-of-the-tiger sign cases reported (Hartig et al. 2006; McNeill et al. 2008; Kumar et al. 2006; Strecker et al. 2007; Valentino et al. 2006). The correlation between eye-of-the-tiger sign and PKAN was good, 94% (143/152) of eye-of-the-tiger sign had PANK2 mutation, combining the cases of these three series (Hayflick et al. 2003; Hartig et al. 2006; McNeill et al. 2008). All cases with PANK2 mutation have eye-of-the-tiger sign, but not all eye-of-the-tiger sign cases showed PANK2 mutation. One of the PANK2-negative eye-of-the-tiger sign case was multiple system atrophy and two were neuroferritinopathy (Strecker et al. 2007; McNeill et al. 2008).
Tigers have forward facing eyes rather than one on each side of their head. This provides binocular vision because each eye's field of vision overlaps creating a three dimensional image. Binocular vision enables them to accurately assess distances and depth which is extremely useful for maneuvering within their complex environment and stalking prey.
Tigers have more rods (responsible for visual acuity for shapes) in their eyes than cones (responsible for color vision) to assist with their night vision. The increased number of rods allows them to detect movement of prey in darkness where color vision would not be useful.
Tigers have a structure at the back of the eye behind the retina called the tapetum lucidum that enables them to have better night vision. This mirrorlike structure reflects light (that has not already been absorbed by the eye) back into the eye a second time to help produce a brighter image. The tapetum lucidum causes their eyes to glow at night when a light is shone on them.
The mystacial whiskers are located on the tiger's muzzle (snout) and are used when attacking prey and navigating in the dark. The tiger uses these whiskers to sense where they should inflict a bite. When navigating through darkness the tiger's pupils dilate to let more light enter the eye to increase their vision. The dilated pupils of their eyes assist their night vision but makes focusing on objects up-close difficult. The tiger's mystacial whiskers help it feel its way through the dark.
The tiger's sense of hearing is the most acute all its senses and is mainly used for hunting. Their ears are capable of rotating, similar to a radar dish, to detect the origins of various sounds such as the high-frequency sounds produced by prey in the dense forest undergrowth.
The tiger's sense of smell is not as acute as some of its other senses and is generally not used for hunting. They have small amounts of odor-detecting cells in their nose and a reduced olfactory region in the brain that identifies various scents.
Tigers, like other carnivores, have a Jacobson organ in the roof of their mouth. The Jacobson organ is a pouch-like structure located directly behind the front incisors. It has two small openings that direct scent particles from the air as the tiger inhales to nerves located within the structure. The nerves then transmit the message to the olfactory region in the brain that identifies the scent.
Tigers will exhibit a behavior called flehman, in which they pick up a scent on their upper lip and curl it upwards towards their nose to detect scents. This behavior makes the tiger appear to be snarling but without any sound.
Testing for these tiger eye variants allows breeders to identify carriers of tiger eye. Since brown-eyed horses can carry either TE1 or TE2, owners breeding for or against this unique eye color can use this diagnostic tool to inform mating decisions.
Have you been noticing a really interesting and eye-catching plant around your town? First Editions Tiger Eyes Cutleaf Staghorn Sumac (Rhus typhina 'Bailtiger' PP 16,185) is a cold hardy shrub that looks almost tropical!
A unique eye color, called tiger-eye, segregates in the Puerto Rican Paso Fino (PRPF) horse breed and is characterized by a bright yellow, amber, or orange iris. Pedigree analysis identified a simple autosomal recessive mode of inheritance for this trait. A genome-wide association study (GWAS) with 24 individuals identified a locus on ECA 1 reaching genome-wide significance (Pcorrected = 1.32 10-5). This ECA1 locus harbors the candidate gene, Solute Carrier Family 24 (Sodium/Potassium/Calcium Exchanger), Member 5 (SLC24A5), with known roles in pigmentation in humans, mice, and zebrafish. Humans with compound heterozygous mutations in SLC24A5 have oculocutaneous albinism (OCA) type 6 (OCA6), which is characterized by dilute skin, hair, and eye pigmentation, as well as ocular anomalies. Twenty tiger-eye horses were homozygous for a nonsynonymous mutation in exon 2 (p.Phe91Tyr) of SLC24A5 (called here Tiger-eye 1), which is predicted to be deleterious to protein function. Additionally, eight of the remaining 12 tiger-eye horses heterozygous for the p.Phe91Tyr variant were also heterozygous for a 628 bp deletion encompassing all of exon 7 of SLC24A5 (c.875-340_1081+82del), which we will call here the Tiger-eye 2 allele. None of the 122 brown-eyed horses were homozygous for either tiger-eye-associated allele or were compound heterozygotes. Further, neither variant was detected in 196 horses from four related breeds not known to have the tiger-eye phenotype. Here, we propose that two mutations in SLC24A5 affect iris pigmentation in tiger-eye PRPF horses. Further, unlike OCA6 in humans, the Tiger-eye 1 mutation in its homozygous state or as a compound heterozygote (Tiger-eye 1/Tiger-eye 2) does not appear to cause ocular anomalies or a change in coat color in the PRPF horse.
The eye of the tiger sign refers to symmetric bilateral abnormal low signal on T2-weighted MRI (due to abnormal accumulation of iron) in the globus pallidus with central high signal (due to gliosis and spongiosis).
Articles: Animal and animal produce inspired signs Pantothenate kinase-associated neurodegeneration Organophosphate poisoning (CNS manifestations) Mitochondrial membrane protein associated neurodegeneration Mitochondrial membrane protein-associated neurodegeneration Acaeruloplasminaemia Neuroacanthocytosis syndromes Basal ganglia T1 hyperintensity CoA synthase protein associated neurodegeneration MEGDEL syndrome Cases: Pantothenate kinase-associated neurodegeneration Pantothenate kinase-associated neurodegeneration - eye of the tiger sign Pantothenate kinase-associated neurodegeneration Tiger eye (photo) Eye of the tiger sign Pantothenate kinase-associated neurodegeneration - eye of the tiger sign Pantothenate kinase-associated neurodegeneration - eye of the tiger sign Pantothenate kinase-associated neurodegeneration - eye of the tiger sign Lewy body dementia
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